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A method is described which allows a very large (greater than 100,000) number of applications to communicate logically through a many-to-many multicast cloud on the common carrier Internet efficiently by exploiting characteristics of the applications' data streams which allow substantial message culling as well as more standard routing optimization (conventional multicast and optimization standard to normal Internet routing systems). The method describes the function and type of three types of systems which operate together to implement the method. The first is a network enabled client application, such as a distributed simulation or game, which joins an application cloud or federation and communicates its internal state changes into the cloud via a communication applications programming interface. The second is a lobby manager or broker which accepts entry into a communication cloud or federation and provides information to the federation and the client application for establishing communications between them. And third, is a applications-specific routing system which provides the normal function of routing packets between Internet hosts (client applications running on these hosts), but also allows the routing functions to affected by modules in the router which are associated with the distributed application or simulation being implemented. These application "personalized" routing modules implement substantial application-specific message culling through message omission, rerouting, and other quality of service modifications to substantially reduce overall federation communication traffic and at the same time still effectively implement a point-to-multipoint distributed communications model between clients.
1. A distributed network computing environment, comprising:
a plurality of clients communicating within a multicast cloud using a stream-specific behavior to implement a groupware application; and
one or more network routing modules or router embedded applets operative to support the stream-specific behavior in addition to normal packet-routing.
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11. A distributed network computing environment, comprising:
a network-enabled client application;
at least one lobby manager that facilitates communications between the client application and a federation; and
one or more network routing modules or router embedded applets that implement application-specific message culling to reduce the communications with the federation.
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at least some of the client applications run on host platforms; and
the routing modules further support conventional internet packet routing among the hosts.
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[0001] This application claims priority of U.S. provisional application Seriel No. 60/192,977, filed Mar. 28, 2000, the entire contents of which are incorporated herein by reference.
[0002] This invention relates generally to network computing and, more particularly, to a distributed environment that supports massive groupware streaming and pier-to-pier packetized communications.
[0003] Computer games and simulations, like most computer applications, have traditionally been limited to single play units (i.e. a single console which creates the display and is operated through one or several control devices or pads). The PC, because it can be networked via modems, on local network, or the internet, has opened up the possibility of games in which multiple player interact with each other.
[0004] Earlier work in this area describes one player connected to a single other player with simple modems. U.S. Pat. Nos. 5,292,125 and 5,350,176 to Hochstein and U. S. Pat. No. 5,538,255 to Barker describe computer game systems which can allow synchronized play between two players connect by a modem.
[0005] Later work, like U.S. Pat. Nos. 5,558,339, 5,896,444, and 5,956,485 to Perlman, describe small scale "client-server" models where a client came connects to a game server through a network. Because of game play models of this type being limited in the number of players which must be supported, most current PC games of this type allow a small number of players to interact, perhaps 10-30 players on a local area computer network. For small scale client-server games, the server can be simple and need not be optimized for the number of communication connections nor for quick/efficient access to game/client specific parameters.
[0006] Several newly release games, like Ultima Online and Everquest have expanded network player counts to the 1000-10,000 level. To achieve this level of multiple player interaction, these games use specialized central servers (or server clusters which are closely linked) which run programs that understand about all the players and how they interact with each other, thus, the individual player game systems are not complete without the central servers or server clusters. This technology has been described in the patent literature by U.S. Pat. No. 5,659,691 to Durward; U.S. Pat. No. 5,664,778 to Kikuchi and U.S. Pat. No. 5,668,950. U.S. Pat. No. 5,828,866 Hao et al. use the same concepts to distribute data in distributed CAD applications.
[0007] For the last several years, an alternative model for massive distributed play has been developed by elements of the U.S. Department of Defense and its contractors. This model is call "distributed simulation" because in its pure implementation, each client broadcasts its internal state changes (for instance object motions) to the network and reads all state changes from other clients to depict simulation changes which are computed on other client systems. Thus, no central server is needed to make the distributed system operate. The significant advantage of the distributed approach is that there is not a bottleneck at a central server (or server cluster), because each client can send data to another without going directly through a server.
[0008] The basics of this method of connecting applications into a network were refined from about 1985 to 1990 in a program generally name SIMNET. SIMNET technology was later renamed as DIS or Distributed Interactive Simulation. Some same publications from that period include Kraemer et al. (1987), Alluisi (1991), the DIS Steering Committee (1994), Calvin et al. (1995), Cosby (1995), Pullen et al. (1995) and later formal specifications documents from the IEEE (1278.1 and 1278.2 published in 1993 and 1995). Current Defense Department standards pertaining to distributed simulation, called the High Level Architecture or HLA, are published by the Defense Modeling and Simulation Office (1996).
[0009] In reality, some centralized functions still remain like finding all the players currently operating in the same distributed simulation space (so that the client can send and receive from them, the client needs to know their Internet or IP address). U.S. Pat. No. 5,685,775 to Bakoglu describes implementation of system like SIMNET but for operation via standard dial-up phone networking (SIMNET, DIS, and HLA have always assumed Interent LAN/WAN network architectures for higher state exchange rates). U.S. Pat. No. 5,775,996 to Othmer and U.S. Pat. No. 5,956,485 to Perlman describe brokering mechanisms which were similar to those integral to SINET systems as early as 1989. U.S. Pat. No. 5,899,810 to Smith and U.S. Pat. No. 6,006,254 to Waters et al. are examples of commercially targeted systems which were influenced by the DIS and HLA architecture.
[0010] Similarly, it may be advantageous to access certain centralized databases and files (like common descriptions of play area virtual terrain). These centralized functions, however, are characterized as being needed when a new client joins the simulations and when it leaves it. Thus, the more limited server is usually called a simulation broker, and can actually be implemented as part of the first client which initiate s new simulated space. Centralized database distributions are described in U.S. Pat. No. 5,659,691 to Durward; U.S. Pat. No. 5,984,786 to Ehrrman; and U.S. Pat. No. 6,006,254 to Waters et al., but none of these focus only on data needed only for joining, and rather, in the spirit of client-server multiplay, provide databases from centralized points which interact intimately with on-going game playing.
[0011] For simulations like those performed in military training, over relatively high-speed networks, this advantage can be realized. However, if the simulation client is operating through a lower performance link like a dial-up modem, replicating packets to all other clients in a large pool (potentially including 1000+clients) is not practical (i.e. the speed of transmission over the slow link precludes sending to many clients at once). This problem at the client communication end has motivate most of the client-server type solutions referenced (Hochstein U.S. Pat. No. 5,292,125 and U.S. Pat. No. 5,350,176, Barker U.S. Pat. No. 5,538,255—only two players at a time; Perlman U.S. Pat. Nos. 5,558,339, 5,896, 444, 5,956,485, Durward et al. U.S. Pat. No. 5,659,691, Kikuchi et al. U.S. Pat. Nos. 5,664,778, 5,668,950, Bakoglu et al. U.S. Pat. No. 5,685,775, Barrus U.S. Pat. No. 5,736,990—small numbers of players over bandwidth limited networks; Smith U.S. Pat. No. 5,899,810, Ehrman U.S. Pat. No. 5,984,786, Water et al. U.S. Pat. No. 6,006,254, Vange et al. U.S. Pat. No. 6050,098, Kappler U.S. Pat. No. 6,064,677—combination of distributed, client-server, and message priority queuing to improve performance in the network and on the central server). Work to overcome aspects of the problems which arise because of poor server or network performance are described by Barrus et. al. U.S. Pat. No. 5,736,990, Othmer et al. U.S. Pat. No. 5,775,996, O'Callaghan U.S. Pat. No. 5,820,463, Waters U.S. Pat. No. 5,920,862, Lambright et al. U.S. Pat. No. 6,015,348, Vange et al. U.S. Pat. No. 6050,098, and Kappler U.S. Pat. No. 6,064,677.
[0012] One solution to this problem is inserting a repeater router, which reads packets from each client and resends them to all relevant other clients which need to see the particular state change. In a simple form this has already been defined for the Internet using a concept called multicast. In multicast, a source client and all of its destination peers establish a multicast connection so that when the client sends its packet once into the Internet, properly featured Internet routers (which are really in this case servers with repeater routers) replicate that packet and route it to all destination clients without the source client sending the data out multiple times.
[0013] Some replication methods used in multicast have described by Chen et al. U.S. Pat. No. 5,666,360 and in numerous Internet published Request For Comment (RFC—these publicly distributed papers describe all interoperability standards used to implement the modem Internet and its protocols for data exchange; RFC are solicited and published by the Internet Society). Some RFC and papers defining details of Internet Protocol (IP) based multicasting are defined in Deering, RFC 1112, Pullen et al. (1995), Armitage RFC 2022 and RFC 2191, Fenner RFC 1112, Talpade et al. RFC 2149, and Pullen et al. RFC 2502 and RFC 2490.
[0014] Multicast, as built into some Internet routers and backbones, is conceptually very simple. One packet from a source goes in and multiple packets to multiple clients go out (more or less by copying or replicating the input packet). The service as currently designed has been built for replication data from one point in to many out to deliver media like digital video or digital audio (the digital Internet equivalent to broadcast TV or radio). For this type of use, there is no way to reduce replication effort through knowledge of the data being sent -if a client is "tuned" to a digital TV station, it needs copies of the packets being sent from that station (or packet source).
[0015] Some of the RFC disclosed applications specific streaming protocols for audio, video, and other data are defined in Schulzrinne, "RTP Profile for Audio and Video Conferences with Minimal Control," RFC 1890; Schulzrinne et al., "RTP: A Transport Protocol for Real-Time Applications," RFC 1889 and Real Time Streaming Protocol (RTSP),"RFC 2326; Defense Modeling and Simulation Office, High Level Architecture Riles Version 1.0; Handley et al., "SDP: Session Description Protocol," RFC 2327, and Arango et al., "Media Gateway Control Protocol (MGCP) Version 1.0," RFC 2706.
[0016] In Pullen et al., "A Simulation Model for IP Multicast with RSVP," RFC 2490, the authors points out a number of deficiencies in using current IP multicast to service distributed simulation. These center around the difficulty in allowing a specific simulation client into and out of multicast groups (i.e. groups which will need the clients state broadcast packets) quickly (presumably due to some application culling rule changes as a client simulation executes). This presumes that making and breaking multicast group membership is the best way to optimize packet flows.
[0017] However, rather than making multicast more efficient (which is certainly a good idea, especially for applications independent uses) in distributed simulation and gaming, an alternative of making the routing system more intelligent about what and where data is needed can also have a significant impact on overall group or federation performance. Consider that quite a bit of knowledge is available about the source and destination clients and the objects being simulated or displayed on these clients. For instance, if the object on a client station which represent client avatar (or player self) in the game is in one place, it will not be able to see another object being simulated by another client if that object is (1) behind a wall, (2) too far away, (3) moving too quickly, (4) obscured by smoke or weather, to name a few simple culling rules.
[0018] Similarly, since each object is a depiction of something with acceleration and mass properties, it cannot change is location, velocity, or acceleration outside of some operating envelope. This means that each client can track objects and predict within some error bound where they will be at each point in the future. If the predicted value is close enough to the value from the client where the object is being created (and probably controlled by a player), its state changes need not be sent to other clients which can used the predicted location. Updates are only required when predictions are different from actual location by a large enough amount to effect the quality of play.
[0019] Culling rules based on proximity in the network [Seaman U.S. Pat. No. 5,644,571], proximity in virtual space [Barrus et al. U.S. Pat. No. 5,736,990], [Waters et al. U.S. Pat. No. 5,841,980], [Waters U.S. Pat. No. 5,920,862], and [Lambright et al. U.S. Pat. No. 6,015,348], and priority [Vange et al. U.S. Pat. No. 6,050,098] and [Kappler et al. U.S. Pat. No. 6,064,677] have been used in client-server systems. However, these concepts have not been extended into IP multicast or conventional routers.
[0020] The advantages of putting application-specific information actually into the routing system are many. Backbone routers provide the highest level of access to the Internet. Thus, routing data from lower echelon networks (and client-point-to-router connections) into an upper echelon router, which in turn, determines routing quality of service based on the needs of the federation (i.e. the needs based on source and destination state data which is available to the router because of the record of past packet traffic through it), can substantially reduce overall traffic over the backbone. Since network traffic is directly translatable to cost and performance, utilizing application (game) specific data routing performance and packet traffic reduction rules reduces cost and while improving multiplay game play performance. Culling rules inserted into the router is a specific instance of the concept of inserting portable applications or applets into the route. This is analogous to adding special purposed functionality to a general purpose web by adding applets (which might be downloaded into it).
[0021] This invention broadly resides in a network computing environment and method that facilitates many-to-many data streaming with substantial message culling as well as more standard network optimization such as conventional multicast and Internet host packet routing. The approach allows a very large (i.e., greater than 100,000) number of client applications to communicate logically through a multicast cloud over a common carrier such as the Internet to implement massive groupware configurations including distributed simulations, games, and client selectable/controllable data services used to broadcast audio, video, or other digital data.
[0022] According to a preferred embodiment, the technology utilizes three primary components; namely: client software, lobby management, and specialized routing functions. The client software, preferably through an applications programming interface, or API, connects a game client to a lobby manager or broker to initiate entry or joining of a federation (or a game cloud made up of all active players). The lobby manager or brokering software accepts initial client connection, provides a means for validating the client's simulation software (i.e. checks databases and code bases for compatibility with the federation) and provides a means for downloading data to correct deficiencies.
[0023] One or more routing systems accept attachments by clients upon direction of one or several lobby managers. The routing systems are able to apply game-specific packet culling rules to and from clients based on programmed logic supplied by qualified programming stations (central router control stations, game lobby managers and/or clients depending on security considerations). Thus, a router can exhibit application stream-specific behaviors in addition to normal packet routing behaviors.
[0024] The technology in the preferred embodiment is designed to implement massive distributed games and simulations, however, the technology is equally valuable in implementing other massive groupware Internet applications which benefit from special purpose applets which can be downloaded and executed within the router triggered as part of router message flow control. An example is the distribution of user customizable video, audio, or other digitized information (like medical data).
[0025]FIG. 1 shows the structure of the RTI implemented per the DMSO specification;
[0026]FIG. 2 shows the invention's use of a separated routing function and a lobby manager function;
[0027] PROGRAM LISTING 1 illustrates the use the "HelloWorld" example from DMSO to illustrate how a client application is built according to the invention;
[0028] PROGRAM LISTING 2 illustrates how a client publishes and subscribes to a objects and their data using "PublishAndSubscribetoObjects";
[0029]FIG. 3 is a diagram that illustrates how processes for the same federation on various router machines are able to communicate and route client messages from one to another;
[0030]FIG. 4 shows a sample network connecting seven clients to one of two repeater routers through a single LobbyManager;
[0031]FIG. 5 is a diagram that shows how a status update need not need to be done 10 times for each client connected to repeater router 2 between the repeater routers;
[0032]FIG. 6 shows how, if one starts with "CybemetBaseEntity", which consists of double Altitude, double Latitude, and double Longitude, one can define a culling "member function called "CheckCube" for "CybemetBaseEntity";
[0033]FIG. 7 shows how a new FederationHost process is launched according to the invention;
[0034]FIG. 8 shows how a federation is joined by a new client assuming that the repeater router is not overloaded;
[0035]FIG. 9 shows how a federation is joined by a new client assuming that the repeater router is overloaded and must start a new process on a new router;
[0036]FIG. 10 shows how packets are forwarded to other FederationHosts;
[0037]FIG. 11 shows how a routing system according to the invention scales with the total number of connections, which are typically distributed in hardware located across the larger Internet; and
[0038]FIG. 12 shows how a user controlled client application might provide controls for selection of different channels from one or many different sources.
[0039] This invention broadly resides in a network computing environment and method that facilitates many-to-many data streaming with substantial message culling as well as more standard network optimization such as conventional multicast and Internet host packet routing through insertion of message traffic or application-specific applets into the message routing system (or into routers). The approach allows a very large (i.e., greater than 100,000) number of client applications to communicate logically through a multicast cloud over a common carrier such as the Internet to implement massive groupware configurations including distributed simulations, games, and client selectable/controllable data services used to broadcast audio, video, or other digital data.
[0040] Key innovations of the method include the following:
[0041] 1) To insert a repeater router (or server cluster) into the Internet backbone to eliminate client packet output replication in favor of sending output packets to the repeater router, which in turn, replicates the packets to the relevant clients. This function with no packet culling is equivalent to multicast implemented by Internet routers that support multicast, but in networks without multicast routers, this function can be implemented by plug-in server which accepts packets and replicates each pack from a particular input client (i.e. IP address) to a list of output clients (i.e. output IP addresses). The address list for each input client is established through a connection protocol that allows the client or a third-party brokering server to associate an output IP address list with each input IP address.
[0042] 2) To insert rules (or message flow triggered applets) into the repeater router which can decode input packet data and use this information to control replication (i.e. applications-specific programming code which implements packet routing service quality, routing, and culling). Examples of such culling rules include the following: (a) Each client can continuously predict where an object simulated by another client will be absent of control input. If the error between prediction and actual is small enough, the repeater router need not forward any state change packets from source client to destination client. (b) If the destination client has a viewing port then no data from source clients which are outside of the destination client view port need be forwarded. (c) If the destination client is beyond a certain range from the source client no data need be forwarded from out-of-range source clients need be forwarded.
[0043] 3) To provide a brokering server (or server cluster) which can provide to the repeater router address lists which connect each source client to its destination clients and provide the applets (in the specific case, the packet decoding and culling rules) to the repeater router which allow the repeater router to only forward packets needed based on destination client visibility requirements. Culling rules or code can be provided by any qualified host, client, broker, or a designated network control host.
[0044] The communications system for implementing distributed simulation specifically, and other applications where the routing element includes applications data stream dependent information in its routing decisions, is based on extending the concepts defined by the High Level Architecture" (HLA) defined in Defense Modeling and Simulation Office, High Level Architecture Rules Version 1.0, US Dept. of Defense, August 1996. HLA in its defined form is a general purpose architecture for simulation reuse and interoperability. It consists of three parts: (1) HLA Rules, (2) HLA Interface Specification, and (3) Object Model Template Specification. HLA in a client applications is implement through the applications programming interface embodied by the Run Time Infrastructure or RTI.
[0045] HLA rules define HLA, its components, and the responsibilities of federates and federations. The official document can be found at http://hla.dmso.mil/tech/rules.html. The HLA Interface Specification is a language independent specification for the HLA functional interfaces between federates and the runtime infrastructure (RTI). The official document can be found at http://hla.dmso.mil/tech/ifspec.html. An simulation client, or one of many simulations which are joined in their execution, is called a federate. A group of these client together is called a federation. HLA defined interoperability of federates (i.e. how a federation works), and allows for multiple execution of simultaneous federations.
[0046] To support its general goals, the HLA requires that federations and individual federates be described by an object model which identifies the data exchanged at runtime in order to achieve federation objectives. This is called the Object Model Template Specification(OMT). The HLA OMT provides a template for documenting HLA-relevant information about classes of simulation or federation objects and their attributes and interactions. This common template facilitates understanding and comparisons of different simulations and federations, and provides the format for a contract between members of a federation on the types of objects and interactions that will be supported across its multiple interoperating simulations. The official document on OMT can be found at http://hla.dmso.mil/tech/omtspec.html.
[0047] The implementation of The RTI or Run-Time Infrastructure software provides a set of services which are used by federates to coordinate their operations and data exchange during a runtime execution. The first RTI enable client also serves as a federation broker to help new federates join the federation (or leave it). The RTIs within the federation share federate contact data so the federation will persist as long as any single federate stays connect into it.
[0048] Like DMSO's HLA specification, this invention includes an RTI, or run time interface, to the client simulation application. In small local area simulations, our RTI can operate just as the DMSO version does (i.e. no centralized or specialized communications processes—just a community of federates endowed with a common RTI). However, when federations which span the Internet are contemplated, two additional functions are present. FIG. 1 shows the structure of the RTI implemented per the DMSO specification. FIG. 2 shows an implementation which contains a separated routing function and a lobby manager function.
[0049] The lobby manager function or broker takes charge of joining and exiting federations. The routing function which accepts all communications to and from a federate with its federation. The routers are aware of all connected federates within a federation and can be replicated and placed at convenient points within the Internet backbone (typically within data centers). Since each router services or concentrates communication to and from a maximum number of federates, the routers also know how to package and route data to and from each other simulating the total multicast connectivity assumed in the original DMSO implementation of HLA. In addition, since each router sees the data streams to and from all of its assigned federates, it can operate quality of service rules which control routing performance based on application-dependent rules. This substantially reduces backbone (between routers) and federate connection (from router to federate or simulation client) bandwidth.
[0050] The preferred RTI (the "Cybernet RTI") can be used under with any simulation operating system including Microsoft Windows 9x, Windows NT, and Windows 2000. The RTI is implemented by two distinct code modules: the HLA-RTI.DLL (in Windows systems a file with suffix DLL is a code library) and LobbyManager.exe (in Windows a file with suffix .exe is an executable program or process—in this case it implements the lobby manager function).
[0051] LobbyManager.exe is a command line application. It maintains a list of running federations. Applications can call LobbyManager.exe by remote procedure calls (RPC calls to get information such as a complete list of running federations, the host machine for each federation, etc. Alternative implementation of remote messaging and request for procedure execution, perhaps through direct socket connections from called process to LobbyManager process will be possible and acceptable. HLA-RTI.DLL is linked into the client application or federate at build or run time.
[0052] When hosting a federation (typically within a local network-type setting), it can maintain a list of federates in the federation, or (typically in the Internet setting) can let a FederationHost process spawned by LobbyManager to maintain this list. The host (either HLA RTI.DLL itself or the FederationHost process) reads and parses the FED file to initialize a list of message object classes as well as to define a list of interaction classes. Subsequently the HLA RTI.DLL or FederationHost process maintains these lists for the federation and keeps track of published and subscribed object and interactions of each federate. When reliable data transmission is required, the HLA RTI.DLL or FederationHost process distributes data to each federate. One or the other (implementing the lobby manager function) also acts as a client federate for the local computer that is doing the hosting. When acting as a client federate, the lobby manager function connects to the federation host, and provides all RTI interface API's to the application.
[0053] The FED file in this implementation is labeled with a suffix of ".FED". This file is compatible with the DMSO FED file format so it can be created and edited with "Object Model Development Tool (OMDT)" from Aegis Research or simply as an ASCII file with any text editor. An example of what goes in this file to define objects and interaction classes is "HelloWorld.fed" from DMSO available from http://hla.dmso.mil. The following values (stored in the registry in a Windows system) can be modified to customize the installation into a federate by functions provided in the HLA DLL Library (i.e. from in the Software Development Kit or SDK). The implementer of a client application might provide the means for a game user to modify these parameters (for instance by including a dialog box in the application to allow end user to modify parameters). These represent typical parameters an implementer might change:
[0054] 1 Address. IP address for the machine on which the LobbyManager runs. For example, 192.168.0.2
[0055] 2. Port. Port that LobbyManager uses. The default is "2000". It is a string value.
[0056] 3. Address. Multicast IP address. The default is 184.108.40.206.
[0057] 4. Port. Multicast port base value. The default is 22500. It is a DWORD value. This base address is used by LobbyManager to acknowledge its own existence. Each federation receives a multicast port address from the LobbyManager, which is larger than the base value and smaller than or equal to the maximum port number.
[0058] 5. MaxPort. Maximum multicast port number. The default is 23500. When all ports between the base port and this port are used up, no more federations can be created.
[0059] 6. TTL. Multicast TTL.
[0060] 7. NICAddress. Network interface card IP address. This can be useful when multiple NICs are in a machine.
[0061] 8. QueueSizeLimit. Multicast is used for "best effort" communication. Multicast packets are placed in a queue when they arrive. If the queue size has reached this limit, new packets will be abandoned.
[0062] 9. Address. This is a network interface card IP address that is used when hosting a federation. It can be useful on a multiple NIC machine.
[0063] 10. Port. This is used for TCP connections while hosting a federation.
[0064] The LobbyManager process must be started either as a stand-alone application (which would be typical for Internet play—FIG. 2) or by spawning it from a client application (the first federate on a local network for localized play—FIG. 1). The process reads the LobbyManager start-up values (on a Windows implementation in the LobbyManager section in the registry). Other than setting up these values if they need to be changed from their defaults, client code does not need to do anything more for LobbyManager for local play. Starting the LobbyManager replaces the "rtiexec" or "fedex" commands used in the DMSO implementation.
[0065] In the client or federate code, a HLA13 RTI::CLobbyManager class must be created, making sure that this class is present at startup time as well as shutdown time. At startup time, its "Init" member function is called to initialize it, and at shutdown time, its "DeInit" member function is called to clean up. The prototype of the Init function is BOOL Init(BOOL fsearch, DWORD dwTime, BOOL fUseLocalAddress), where "BOOL fsearch" specifies whether to search for LobbyManager.exe via multicast ping.
[0066] If the LobbyManager.exe has already started (as is the case when joining Internet play), it is spawned by the first federate, fsearch should be set to FALSE. "DWORD dwTime" specifies how long to wait for a search to complete if fsearch is TRUE. If "BOOL fljseLocalAddress" is TRUE, it is assumed that LobbyManager.exe is running locally. Otherwise the assumption is that it is running at IP address specified in the registry. "DeInit" does not take any parameters. Functions available after "Init" is called and before "DeInit" is called, are the same as those defined in the standard DMSO RTI (examples are provided by DMSO, such as the "Hello world" sample program).
[0067] The Cybernet RTI is an SDK is compiled and linked with C++applications, for instance, within Windows environments. It includes a setup program that installs the necessary components for a developer. The CybernetRTI example implementation is to be used with Microsoft Visual C++ version 6.0. The code generated with CybernetRTI will run under Microsoft Windows 9x, Windows NT 4.0, and Windows 2000.
[0068] The C++ header files that are included into client applications are RTI.hh, RTITypes.hh, LobbyManager.h, and HLA_RTIProfile.h. They are placed in the <Installation Directory>\include. The only difference between RTI.hh, RTITypes.hh and the comparable versions from DMSO is that static functions use "fastcall" declaration specifications. Other include files are that same as those available from the DMSO distribution of HLA.
[0069] There is one lib(brary) file that is linked into the client application. This is HLA_RTI.lib. It is placed in <Installation Directory>\lib. Following we use the "HelloWorld" example from DMSO to illustrate how the client application is built. In a client application that uses RTI, the first few things the client includes are declarations for a HLA_RTI::CLobbyManager class, a CFederateAmbassador class (see PROGRAM LISTING 1), and a text string char *szFederateName that uniquely identifies the federate.
[0070] The CFederateAmbassador FedAmb class is derived from RTI: :FederateAmbassador, and overloads some of the RTI: :FederateAmbassador member functions. These overloaded functions are callback functions. When something happens on the network, one of the callback functions will be called. Some of the most useful ones are listed below:
[0071] This function is called within a federate when another federate on the network is interested receiving data from objects of this class which the first federate publishes. A federate registers for objects in this class to signal to another federate which publishes in the class that it wishes to see state updates as they publish.
[0072] This function is called when no client on the network is interested in receiving data from objects in this class which a federate publishes. A federate can unregister objects in this class published by another.
[0073] This function is called when a federate on the network is now interested in the interaction another has published. A federate updates interactions in this class that is publishes.
[0074] This function is called when no client on the network is interested in the interaction another publishes. A client stops updating interactions in this class that it publishes.
[0075] This function is called when an object of a class to which a client subscribes is registered on the network. The client creates an object locally and stores "theObject."
[0076] This function is called when an object which a client had previously discovered is updated. The updated values are in "theAttributes." The object is identified by "theObject," as specified in the previous function.
[0077] This function is the same as the previous one except it includes a time input.
[0078] This function is called when an interaction which applies for a class to which a client has subscribed is updated on the network. The updated values are in "theParameters."
[0079] This function is the same as the previous one except it includes a time input.
[0080] This function is called when an object that a client previously discovered is removed. The object is identified by "theObject," as specified in "discoverObjectlnstance."
[0081] This function is the same as the previous one except it includes a time input.
[0082] This function is called when a federate on the network requests that another subscriber update data for an object that has been already registered. The object is identified by "theObject," as specified in "discoverObjectlnstance."
[0083] This function is called when a client on the network is now interested in data from an object that the sourcing client previously registered. The object is identified by "theObject," as specified in "discoverObjectlnstance." The sourcing client application starts updating of this object on the network.
[0084] This function is called when no client on the network is interested in an object that sourcing client has previously registered. The object is identified by "theObject," as specified in "discoverObjectlnstance." The sourcing client stops updating of this object on the network.
[0085] PROGRAM LISTING 2 illustrates how a client publishes and subscribes to a objects and their data usingf "PublishAndSubscribetoObjects."
[0086] The CheckExitSignal function's prototype is "BOOL CheckExitSignal(void);". It is a very simple function that may be used in a command line application or it may be simply used as follows
[0087] If it is a GUI application, it may be used as:
[0088] where BOOL fExit=FALSE initially and is set to TRUE when WM_QUIT is received.
[0089] The following are descriptions of key Interface Classes. The HLA_RTI:Cprofile class is declared in HLA_RTIProfile.h. All members in this class are static. All registry section name strings and entry name strings, along with default profile values are declared within it. The following are examples:
[0090] This function is called when exiting RTI code.
[0091] This function is called when initiating RTI code. BOOL fsearch: specifies whether to search for LobbyManager.exe via multicast ping or not. If the caller knows a LobbyManager.exe has already been started, or it is going to start it, the caller can set fsearch to FALSE. DWORD dwTime: is used if fsearch is TRUE to specify how long to wait for a response from the LobbyManager to the search request. BOOL fUseLocalAddress is TRUE, if the caller assumes that LobbyManager.exe is running locally (on the same machine making the call). Otherwise the caller assumes that the LobbyManager is running at an IP address specified as a start-up value (in the registry for Windows).
[0092] This function checks to determine if LobbyManager.exe is running.
[0093] This function will shutdown LobbyManager.exe.
[0094] The extensions provided by this invention modify the functionality of the LobbyManager and support multiple routing functions which aggregate traffic to and from clients and forward that traffic to other clients or routers based on application dependent evaluation of the messaging streams (based on culling rules). The changes and extensions to implement this functionality are described in this section.
[0095] In DMSO version of the RTI, a list of active federation executions is maintained by an executable called rtiexec. Every federation execution is created and destroyed by rtiexec. In Cybemet's version of RTI, described in the previous section, rtiexec is replaced by LobbyManager. Besides simply replacing rtiexec, LobbyManager also has the following extended features:
[0096] Additional APIs
[0097] Additional Runtime Options
[0098] Mtunnel/FederationHost functionality
[0099] LobbyManager can be called directly from an RTI enabled client application or federate by RPC (Remote Procedure Call or other equivalent communication mechanism) to obtain information about the list of active federation executions. The following are member functions of HLA_RTI::CLobbyManager class, which is declared in LobbyManager.h:
[0100] This function can be called to see if a federation named with pExecutionName already exists. It returns TRUE if it exists, and FALSE otherwise.
[0101] This function can be called to retrieve information about a federation named with pLobbyMemberName. It returns TRUE if successful, and FALSE otherwise. The requested information is returned in pLobbyMember. The memory space of pLobbyMember is provided by the caller.
[0102] This function retrieves the application-specified ID of a host of a federation named with pszHostName. It returns NULL if failed.
[0103] This function retrieves information needed for making a TCP connection to the host of a federation named with pExecutionName.
[0104] This function retrieves the application-specified model name of an object with ID specified by pszID in a federation hosted by pszHostName. It returns NULL if failed.
[0105] This function retrieves the list of federates in a federation hosted by pLobbyMemberName.
[0106] This function retrieves the number of hosts available.
[0107] This function retrieves the names of all available hosts. Each name is a string of 32 bytes in length with NULL-termination.
[0108] This function retrieves the application specified scenario title of a federation hosted by pszHostName.
[0109] This function is called implicitly if not called explicitly before creating a new federation. Calling it directly before creating a new federation gives the application option to store additional information about a federation into the federation list maintained by LobbyManager.
[0110] This function allows application to setup a callback function. When there is a change in the list of federations, the application will be notified via the callback function. Additional run-time features which support Internet gaming allow the LobbyManager to be placed on a "broker server" computer to manage larger networks of federations over the Internet. The first feature for such purpose is user authentication. An application can use the "Login" member function of HLA_RTI::CLobbyManager class to login to LobbyManager, and the "Logoff" member function to log off. HLA_RTI::CLobbyManager is declared in LobbyManager.h. Alternatively the user "login" can be accomplished via a game-specific web site which is authenticated as a site when the site (through CGI) logs into the LobbyManager through a secure command line interface.
[0111] LobbyManager can keep track of a list of "repeater router" machines. Each "repeater router" machine is running a copy of MTunnel to be discussed later. One task of MTunnel is to launch new processes on designated repeater router machines which are placed in data centers distributed about the Internet (based on backbone and client-to-routing machine load balancing considerations) for LobbyManager.
[0112] If a user requests to create a new federation, or to join an existing federation that already has too many members, a new federation host process will be launched on a repeater routing machine. All FederationHost processes for the same federation on various router machines are able to communicate and route client messages from one to another and each has information about each entire federation within which it operates. FIG. 3 provides a process flow of these operations.
[0113] For example, if a client requests LobbyManager to create a federation called "Fed1", LobbyManager makes sure that there is no federation called "Fed1" on its network and then it creates a hosting process for the federation "Fed1" on repeater router 1 which might be called "FederationHost1". When another client requests to join "Fed", it will be assigned to FederationHost1 on repeater router1. As more and more clients join "Fed1," the LobbyManager at some point will decide to create another process called "FederationHost2" on repeater router 2 to host the same federation, namely "Fed1," and will direct newer clients to FederationHost2 as the host. "FederationHost1" and "FederationHost2" share the same client list, the same object list, etc. Each will perform culling functions for the connected clients for which it is responsible.
[0114] Suppose that a client requests to create another federation called "Fed2." The LobbyManager makes sure that there is no federation called "Fed2" already defined on its network. Then it find the least busy Mtunnel router, say repeater router and creates a new FederationHost process called FederationHost2 on repeater router1. When another client requests to join "Fed2," it will be assigned to FederationHost2 on repeater router1. Router support for "Fed2" will be grown based on the number of new connections just as it was for "Fed1." FIG. 4 shows a sample network connecting seven (7) clients to one of two repeater routers, through a single LobbyManager. Because FederationHost1 is implemented across the two repeater routers, they must be in communications to route messages from Fed1 clients on one to the other as needed.
[0115] When managing a large network of federations over the Internet, LobbyManager will spawn as many FederationHost processes as needed to host a federation.
[0116] FederationHost is an executable, but it cannot be run by itself. It is always launched on a free router by LobbyManager through a process named MTunnel.
[0117] FederationHost performs all the host functions defined in the RTI code previously described. When there are multiple FederationHosts for a given federation, they communicate with each other via both TCP/IP connections and IP multicast. They will each maintain a complete list of federates, but each will communicate directly with a limited number of these clients.
[0118] Exactly which clients will communicate with a given FederationHost is determined by LobbyManager. The client code in HLA_RTI.DLL receives the IP address of an Mtunnel router and a port address of a FederationHost Process from the LobbyManager after it logs in. Then the client code will establish a TCP connection with the FederationHost (for reliable messages)as well as a UDP connection (for lower priority state change messages).
[0119] Because clients do not communicate directly with each other, network traffic is greatly reduced. For example, if FederationHost 1 on repeater router 1 is hosting 10 users, and FederationHost 1 on repeater router 2 is hosting 10 users, for the update of the status of a single client connected to repeater router 1, there is going to be one and only one transmission of data from repeater router 1 to repeater router 2. The status update does not need to be done 10 times for each client connected to repeater router 2 between the repeater routers. This is diagrammed in FIG. 5.
[0120] FederationHost also performs the function of message culling to further reduce network traffic. Culling functions, which are typically application dependent, are defined as "member functions" of various attribute sets in FED files, which reside on repeater routers. These attribute set definitions are provided by the repeater router builder or applications developer in a FOM (Federation Object Model) library. Each function can be turned on and off at run-time. Certain culling functions can have parameters to be set at run time as well. Because one can derive new attribute sets from existing ones, modeling C++class derivation with single inheritance, we can create other attribute sets, and are not limited to what has been included in the base FOM library. Some culling functions slow down message service if two clients are far from each other in virtual space (i.e. do not need frequent position updates because position changes over short periods are small relative to mutual distance). Some culling functions exploit the fact that clients project new object positions as a function of last position, velocity, and acceleration. Thus, if an object is both subject to a significant control action, the difference between communicated state messages and the estimated position might be slight enough that the messages need not be forwarded. Other mutual visibility considerations generate culling rules, depending on the application. For instance, sometimes it is useful t divide the game space into zones. Within a localized zone, locations can be coded relative to the zone origin, and visibility might be restricted to only other objects in the same zone. Any and all of these culling functions can be implemented into the member functions in the FOM.
[0121] Referring to FIG. 6, if we start with "CybernetBaseEntity", which consists of double Altitude, double Latitude, and double Longitude, we can define a culling "member function called "CheckCube" for "CybernetBaseEntity", which is defined as "Altitude-Altitude0>=a1 and Altitude-Altitude0<=a2 and Latitude-Latitude0>=b1 and Latitude-Latitude0<=b2 and Longitude-Longitude0>=c1 and Longitude-Longitude0<=c2", where (Altitude0, Latitude0, Longitude0) is a "CybernetBaseEntity" that belongs to the receiving federate. Also a new member function, namely EableCulling, is added to RTI::RTIAmbassador class. It allows applications to turn certain culling rules on and off.
[0122] The MTunnel is an executable process running on a repeater router. Each router has one and only one MTunnel process running. When LobbyManager needs to launch a new FederationHost process on a repeater router, it connects to MTunnel process on that repeater router using TCP/IP, and sends the request. MTunnel will launch the requested new FederationHost process and return the status of the new process to LobbyManager, so that a client application such as a game simulator can connect with the FederationHost process. FIG. 7 shows how a new FederationHost process is launched. FIG. 8 shows how a federation is joined by a new client assuming that the FederationHost router is not overloaded. FIG. 9 shows shows how a federation is joined by a new client assuming that the FederationHost machine (repeater router) is overloaded and must start a new FederationHost process on a new router. The game shown in the figures is OpenSkies, but this game can be replaced with any other.
[0123] Besides acting as a process launcher, Mtunnel also forwards IP multicast traffic from one repeater router to another using unicast, simulating multicast routing between Mtunnels, when an IP multicast connection is not available between routers. It selects routes of least travel for all forwarded data. FIG. 10 shows how packets are forwarded to other FederationHosts.
[0124] Combining FederationHost with Mtunnel processes, we can reduce network traffic through the Internet backbone considerably. If the topology amongst routers is such that a datagram can reach every node with a single pass on every connection segment, the amount of data sent across the Internet is simply proportional to the number of clients. Consider the example of a flight simulator. An aircraft needs to transmit its altitude, latitude, longitude in doubles, heading, pitch, bank in floats, and ID in 32 bit integer for a total of 76 bytes at 30 Hz, i.e., 220 bytes/sec, in UDP datagrams. This number can be further reduced by not sending the high 32 word of each double every frame, for example. So the number becomes 64 bytes at 30 Hz, i.e., 192 bytes/sec. If there are 100 players, the amount of data sent across the Internet backbone is 100*192 bytes/sec=19.2 kilobytes/sec. For 500 users, it is about 96 KB/sec.
[0125] Local traffic at each router will still be n-squared times 192 bytes/sec with the absence of culling. However, due to the limited bandwidth that is available to each end user, we further rely on culling to significantly reduce the amount of data sent to each user. Assume that the user is using a 56 kb/sec modem, the number of aircraft it can handle is about 10-15. Since we must leave room for infrequently transmitted data, plus things such as missiles and other projectiles, culling will limit the number of planes to 10. Cybernet FOM library is implemented to support substantial network traffic culling. Therefore, unlike general-purpose attribute set definitions, each variable type is specified. For detailed specifications of general-purpose attribute set definitions in Government defined DMSO FED files, refer to http://hla.dmso.mil/sdc/rti/rting-13v2/refD.pdf. The only deviation in the preferred embodiment described here from the DMSO FED specification is the addition of culling rules and specification of variable types.
[0126] The following is a example list of the content of Cybemet FOM library in alphabetical order. Other culling rules in addition to CheckSquare and CheckCube can be defined on an application specific basis withing this framework.
[0127] key innovation in the system implemented as the preferred embodiment is that the distributed network of client applications communicate to each other through reapter routing systems. These systems provide a means for connecting/disconnecting from the federation of simulation network (the LobbyManager) and for routing messages from client to client through the mediation of the routers (Mtunnel and FederationHost processes). The LobbyManager scales by simulation network (i.e. application or game and the number of "parallel" game universes or federations defined by the game operator or the players, depending on how the application space is implemented by its developer). The routing system scales with the total number of connections, and as shown in FIG. 11, is typically distributed in hardware located across the larger Internet (or alternatively can be co-located in a single location of network). Spreading of the routing resources optimized transmission bandwidth lower by:
[0128] (1) providing points of concentration so that all clients need not connect directly to each other
[0129] (2) providing intelligent gateways which can apply culling rules so that messages which would not be relevant to a particular client can be sent a a reduced quality of service or not at all
[0130] The technology in the preferred embodiment- is designed to implement massive distributed games and simulations, however, the technology is equally valuable in implementing other massive groupware Internet applications with similar characteristics. These characteristics are: p0 (1) many source clients producing messages or data streams for many destination clients
[0131] (2) many messages produced will not be useful at destination client depending on setting or controls which are available to the destination user, but not directly to the source
[0132] (3) routing points through which each source client sends and each destination receives and between which a concentrator or routing protocol can be used (to move bulked messages between routers when the source and the destination connect through different ones)
[0133] (4) algorithms or culling rules which can eliminate or reduce quality of service to specific message streams to specific destination clients based on the contents of streams from the source and destination clients (since both destination and source clients communicate through the router which implements the rules, both can be consider sources for the purpose of rule execution).
[0134] Another example of an application which fits this model is distribution of user customizable video, audio, or other digitized information (like medical data). The user controlled client application might provide controls for selection of different channels from one or many different sources (FIG. 12). Only a single feed need be forwarded through the repeater router based on the router's understanding of the controls settings made by the user's player application. For instance, assume ten (10) video capture servers code video streams from ten alternate viewing locations at a sporting event. The user selects at his/her viewing station which stream(s) are relevant to him/her. All streams are sent to a router for distribution (because different users may select views from any of the streams), but because the router knows which views are relevant to which viewers, only some data is forwarded through the router to each user client. This technology might be implemented via conventional multicast routing optimized for fast multicast group joint and unjoin functions, but the preferred embodiment in this disclosure is a preferred application when there are hundreds and perhaps thousands of sources and millions of destinations. In that setting the disclosed approach reduces total aggregate bandwidth orders of magnitude.
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Canker Sores Health Center - Gulfport, MS
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EDMONTON - A passenger bus line from Eastern Canada is moving into Alberta, offering oilsands workers roomy seats and private bunks on a luxury coach linking Edmonton and Fort McMurray.
"It is the only venture that we have in Western Canada," Jean Dupont, president of Maritime Bus Alberta, said in Edmonton Wednesday.
"We wanted to find a niche for our vehicle. We felt there was a market for that kind of a bus in the corridor between Edmonton and Fort McMurray."
Maritime Bus Alberta is a new affiliate of Maritime Bus, which provides inter-city and charter services in Nova Scotia, New Brunswick and Prince Edward Island. Maritime Bus is part of Coach Atlantic Group, a regional group of charter, tour and transit services operating in Atlantic Canada.
The new line will launch Thursday. For $139 plus GST one-way, the service will provide passengers a luxury treatment they haven't seen in Alberta, Dupont said.
"We really feel that people deserve that. People that are working hard in life and they deserve a little bit of luxury."
The front-engined, tall-bodied coach sits on a Kenworth truck chassis.
It has panoramic windows, 17 flat-screen TVs, free Wi-Fi and a choice of 20 movies. Each passenger will have the choice of relaxing in a leather chair or sleeping in a private bunk. Tables accommodate groups of four.
Snacks and non-alcoholic drinks will be provided by a service attendant. "This person on board will really look to make sure that the passengers are having a nice experience," Dupont said.
The bus has seats for 32 passengers but won't carry more than 24 so that those on board can stretch out, Dupont said. The ceiling is one metre taller than in a regular coach, providing room for bunks that can be deployed from above.
The coach will depart Edmonton at 9 a.m. six days a week, except Wednesdays, after picking up passengers from partner hotels. It will leave Fort McMurray for Edmonton at 5 p.m. each afternoon.
If the service proves successful, Maritime Bus Alberta will put two other luxury coaches into service on the same route along Highway 63, starting in September.
The three coaches, custom-built in Quebec, have been in service since 2010 in Eastern Canada, mainly as charters for sports teams and colleges.
In February, former oilsands worker Randy White announced his intention to start a deluxe motorcoach service between Edmonton and Fort McMurray and work camps in the oilsands.
The Oil Sands Express, aimed at weary oilsands workers, was to start operations as soon as May 1, White told the Journal at the time.
His buses would have private cabins, beds with fresh linens, flat-screen TVs, microwaves and mini fridges. He was still looking for $300,000 in startup funding, he said.
Dupont said his company has been working on the idea of starting a luxury coach service between Edmonton and Fort McMurray for three months.
"It was a niche that we've looked at for a long time, but three months ago, that's when we decided to really emphasize this," he said.
"Randy (White) and I have talked in the past. We've never met, and Randy is not at all affiliated to us."
White could not be reached for comment Wednesday. A website for the Oil Sands Express says the service will launch "very soon." On the crowdfunding platform EquityNet, Oil Sands Express says service is scheduled to start June 1 and that "operating capital is required."
In 2011, Alberta replaced its regulated bus transportation system with an open market for bus service. There are no required minimum service levels and carriers don't have protected rights to any route.


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Axis works with more than 800 Application Development Partners globally to ensure tightly integrated software solutions for your Axis video product.
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Mirasys Enterprise Software and NVR's are a powerful, multi-server platform, supporting up to 100 recorders and 6400 cameras in one centrally managed environment. Open architecture platform, plugins such as Video Analytics and ANPR and easy integration with a number of other 3rd party security products such as Access Control. Free Mirasys spotter for iphone and android means you can be in control anytime, anywhere. With proven reliability of over 10,000 installations globally
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text: GENETIC DISORDER RESEARCH PACKET PART I My assigned genetic disorder is Scoliosis In order to summarize your knowledge of cells, cell division, genetics, DNA, and proteins, you are being assigned a genetic disorder to research. Genetic disorders are caused by changes to DNA. These changes are either really small and involve only one tiny piece of DNA or really large and result in an entire missing chromosome. Either way, the affect on how someone lives their life can be dramatic. Additionally, some genetic disorders mean that a person may require someone to care for them their entire life. It is your goal to learn more about the genetic disorder to which you have been assigned. You will be performing this research in segments beginning with basic background information regarding the symptoms of the disease. By periodically working on learning about this disorder, you will have less work to do for the final project. What is the final project? Rather than write a traditional research paper, we are asking that you create a PowerPoint presentation that you or I will show the class about your assigned genetic disorder. Your audience for this brochure is either someone who has just been diagnosed as having this genetic disorder or someone who is the parent or child of someone who has been diagnosed. GENETIC DISORDER PROJECT ASSIGNMENT #1 – 1. What are some of the symptoms of your assigned genetic disorder? Answer in complete sentences. Be sure to attach a copy of your references to the research packet. A curved spine in a "c" or "s" shape. GENETIC DISORDER RESEARCH PACKET PART II My assigned genetic disorder is Scoliosis Answer in complete sentences. Be sure to attach a copy of your references to the research packet. GENETIC DISORDER PROJECT ASSIGNMENT #2 – 1. How common is this disorder? Three in every one hundred people have scoliosis. 2. How long do people usually live with this disorder? You may want to search terms such as "life expectancy". GENETIC DISORDER RESEARCH PACKET PART III My assigned genetic disorder is Scoliosis Answer in complete sentences. Be sure to attach a copy of your references to the research packet. GENETIC DISORDER PROJECT ASSIGNMENT #3 – Whenever you are sick, you want to get better as quickly as possible. Who wants to feel sick, right? Some of the medications such as cough syrup are treatments. In other words, they treat the symptoms of coughing even though you still have the flu. Other medications such as vaccines are cures which end the illness – you no longer have the flu nor will you ever get it again. Currently, there are no cures for genetic disorders. The cause of any genetic disorder is that person's genes. Either an entire chromosome is changed in some way or only a small part (a gene) is affected. Either way, the only way to cure a genetic disorder is to fix the chromosome or gene – in every cell in their body! Remember, there are over 1 trillion cells. There are some disorders for which there may be a cure soon. For cystic fibrosis, scientists are researching ways of inserting healthy genes into a person using a method called gene therapy. However, the use of gene therapy to cure genetic disorders is years away. 1. Why aren't there any cures for genetic disorders? 2. What are the treatments for your assigned genetic disorder? Some treatments for Scoliosis are braces or, if the condition becomes severe (40- 50 degree curve in the spine), then you would have to receive some type of surgery to fix it. 3. At this point in your research, you now know the symptoms, life expectancy, and treatments of this disorder. What would it be like to live with this disorder? Write a paragraph that describes what it would be like to live with your assigned genetic disorder. You may write your paragraph from the perspective of a person living with this disorder or someone who is caring for a person who has this disorder. 1. Define the following terms: - Chromosome Disorder: an abnormal condition dealing with abnormality in the chromosomes. - Gene Disorder: condition caused by absent, defective gene(s) or another chromosomal defect. 2. Is your assigned disorder a chromosome disorder or a gene disorder? You will probably not find a statement such as "Cystic Fibrosis is a gene disorder." Instead, you may need to decide for yourself based on your research. For chromosome disorders only: - Which chromosome is causing this disorder? - How is this chromosome affected? Chromosome disorders are not dominant or recessive like gene disorders. Instead, your answer may be something like monosomy (a missing chromosome), trisomy (an extra chromosome), deletion (large portion of chromosome missing) or addition (large portion of chromosome repeated). For gene disorders only: - What is the name of the gene that is causing this genetic disorder? - Which chromosome is this gene on? Specific Web Sites and Topics Be sure to check out library resources. Scoliosis General Genetic Web Sites Family Village--A comprehensive list of resouces on genetic disorders. Very useful!! Genetics--Useful sites for information about genetics, genetic disorders and genetic counseling. A to Z--The search engine for Health issues. Yahoo Health-Disease and Conditions--Very extensive list of resources- slow to load.


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Aug. 29--As furniture makers move to phase out toxic, ineffective flame retardants, the chemical industry is waging an aggressive last-ditch campaign to preserve a lucrative market that reaches into virtually every American home.
One of the world's leading manufacturers of flame retardants is suing California to block a new flammability standard that starting next year will allow furniture manufacturers to eliminate the chemicals from new upholstered sofas and chairs sold nationwide. The lawsuit, scheduled to be argued Friday in a Sacramento courtroom, is backed by the American Chemistry Council, the industry's chief trade group.
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Report Receipt Date: JUL 02, 2014 NHTSA Campaign Number: 14V402000 Potential Number of Units Affected: 175
Manufacturer: Ford Motor Company
Ford Motor Company (Ford) is recalling certain model year 2014 Ford Fiesta vehicles manufactured October 25, 2013, to February 27, 2014. Due to a manufacturing error, the fuel tank may leak.
Read the full details at NHTSA
Recall date: August 26, 2014
This recall involves Hewlett-Packard's LS-15 AC power cord. The power cords were distributed with HP and Compaq notebook and mini notebook computers and with AC adapter-powered accessories such as docking stations. The power cords are black in color and have an "LS-15" molded mark on the AC adapter end of the power cord.
Read the full details at CPSC
In the new issue of NFPA Journal®, President Jim Shannon said the Association will focus on the leading causes of home fires, including cooking. "We also need to continue to push hard for home fire sprinklers. That's still a large priority for NFPA, and we plan to work very aggressively in 2014 on our residential sprinkler initiative," he said.
The recall involves Amana, Century, Comfort-Aire, Goodman and York International-branded Packaged Terminal Air Conditioners and Heat Pumps. The units are rated 230/208 volt, 3.5 kW and are most often installed in walls of hotels, motels, apartment buildings and commercial spaces to provide room climate control. The recalled units are beige with serial numbers ranging from 0701009633 through 0804272329. The brand name is located on the unit's front cover. The serial number is located on the control board plate found by lifting the unit's front cover.
A series of fire tests were conducted to characterize the potential hazard from ignition of an upholstered chair. The particular chair was selected as part of a fire investigation being conducted by the U.S. Department of Treasury's Bureau of Alcohol, Tobacco, and Firearms.
Heat release rate was determined as a function of time from ignition using the oxygen depletion principle. Two tests were conducted with the chairs placed in the open under large calorimeters.
The third test was conducted with the chair located in a room. Peak heat release rates obtained during the tests ranged from approximately 1 MW to 2.5 MW.
Read more...
Tom Pierce
Pierce Investigations
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Milpitas Police Department
Dale FebF.I.R.E. Associates
805 552-9954
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Unified Investigations & Sciences
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Glendale Police Department - Retired
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Lomprey Investigations
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Vacaville Fire Department
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Yuba City Fire Department
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Kings County Fire Department
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FireNarc Investigations LLC
Mike O'Brien
Suisun City Fire Department
707 580-0672
Doug Wood
Rudloff Wood & Barrows LLP
510 740-1500
Scotty Baker
State Fire Marshal - Retired
559 349-3177
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House in Natural Park
From $302 / night
Hide Property Details
- 3 bedrooms
- 3 bathrooms
- Sleeps 8
- House
Description from the owner
The house is very quiet, located in the Natural Park. Fully renovated.
Swimming pool with terrace and garden furniture pedestal.
Possibility of cleaning service, babysitting, etc..
Port Aventura 40 min. motorway. Barcelona 30 min. Buddhist Temple Plana Novella 15min.
In the surroundings you can practice different activities like paintball, air-soft, archery, water sports, etc.. Just 10 min. Sitges.
Sitges is one of the major tourist destinations and is renowned for its comprehensive and unique offer: microclimate with over 300 days of sunshine a year, 17 sandy beaches, an intense cultural programming, an attracti...Read more
House in Natural Park
Olivella, Catalonia, Spain
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|Minimum Stay
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Rental fees
- Damage deposit | $1,312
- Pet friendly - ask
- Smoking allowed - no
- Suitable for children - yes
- Suitable for the elderly - yes
- Wheelchair accessible - no
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Every year there are some surprise early entrants into the NFL Draft. Meet this year's:
Nevada defensive lineman Kevin Basped will enter the draft. He's a player with tremendous upside. He's a 6-foot-6, 240-pound defensive end. He's made his name as a pass rusher, notching 9.5 sacks and 12.5 tackles for a loss in 2009. At times this season Basped shifted inside on passing downs to get more pressure on the quarterback.
Basped's stock is probably somewhere in the third or fourth round range. If he returned, bulked up further, he could have slipped into the second round. He's fairly quick off the snap and his frame is clearly impressive.
The other surprise entrant is another big defensive end. However, South Carolina's Clifton Geathers is even bigger. At 6-foot-8 and 281 pounds, Geathers has dangerous potential. The reason Geathers gave South Carolina coaches is that he is worried about getting injured in his final year. Geathers had a quiet year with 41 tackles and 3.5 sacks.
He's purely a potential player at this point. But the potential is as immense as his size. Geathers might be at his best playing end in the 3-4. With so many teams moving to that scheme, Geathers could actually hear his named called in the first 100 picks.
Note: LSU safety Chad Jones also announced that he will enter the draft. Some expected Jones to pursue a career in baseball.


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Older than today
WD Live TV Streaming media playerNorthprospect, Plymouth£38Western Digital live TV streaming 1080P media player, good condition, all working, updated to latest firmware, with remote and power supply. £38 CAN POST2SaveRemove
Digital Media Player and Silver Stone GrandiaHuddersfield£90Silver Stone Grandia as seen in picture never used unwanted present, retail at over £100 and a digital media player as seen in picture in great condition....2SaveRemove
SUMVISION CYCLONE MICRO USB UPSCALING MULTI MEDIA 1080P DIGITAL HD HDMI PLAYERNewport£10Includes Media Player, Remote & Power Supply, No HDMI Cable included Full HD 1080P Media Upscaler - Connect USB Drives to your HD TV - Upscale Standard Media Files...3SaveRemove
!!BRAND NEW!! Android Network Media Player HDMI 1080pOrganford Road, Poole£30Turn your TV into a full android desktop computer! 2 AVALIBLE PRICE PER ITEM!!! HDMI 1080p Output LAN Wired Connection Wireless LAN Connection SD/MMC Slot Two USB...1SaveRemove
Western Digital TV Live HD Media PlayerStamford Bridge, York£30WD TV Live - Play a world of HD media on your TV HD video, photos and music - they're on your computer, on your USB drives, on the Internet, but how do you enjoy...2SaveRemove
Cyclone HD2 Lite Media Player - 1TB storage (roughly 1000 movies can be stored)Walderslade, Chatham£50Plugs in to your TV to play movies, music or slideshow pictures you have stored. When connected to your home network you can copy to and from this from your own...3SaveRemove
Media playerEast End, Glasgow£30Like new media player Connect any USB stick , hard drive or sd card to this player and it will play on ur tv very simple to use plays every format including mkv...5SaveRemove
Sumvision Cyclone HD media playerArbroath£20HD media player that was hardly used. Can link up to home network to view or listen to various media files. Also can accept a USB flash drive for local...1SaveRemove
MP4/MP5 PMP - personal media playerWorksop£25Personal media player. Supports SD, high speed USB, supports AV in-out, digital bass system, high resolution camera, movie playback option, inbuilt games and FM...7SaveRemove
usb media playerSandwell, Birmingham£30Usb media player play your avi movies straight to your tv without having to use a pc comes complete with remote and leads like no but no box can be seen working1SaveRemove
Sumvision Cyclone Media PlayerLinthorpe, Middlesbrough£10Complete with remote and power cable. Superb device for watching a variety of video or listening to music. If your not sure what it does check online. HDMI up...4SaveRemove
Media Player in United Kingdom, Other TV, DVD & Cameras for Sale (11 ads posted)


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Added Jan 4, 2012
by gipsou
Strasbourg, France
Feb 2, 2012, 10.28 AMby marlalalalere
so cute, can you share a pattern? (on va se mettre à l'anglais, on est sur un blog anglophone….)
Apr 21, 2012, 10.54 AMby gipsou
Sorry for my late response but my computer was out ! I drew a basic dress pattern without sleeve, and the lower part of the dress was made with lined semicircle.
Ok for english speaking, hope it is clear enough !
May 19, 2012, 06.44 PMby marlalalalere
Yep! all clear!
Jan 5, 2012, 04.33 AMby runningwithscissors1
Very cute!
Jan 5, 2012, 01.53 AMby schnui
Very sweet for a little girl who loves to dance!!!
Add to Favorites no one added it
Sewing & Techniques
Say goodbye to skipped stitches and damaged seams!
Fashion & Trends
Flaunt those curves in Kim-approved bombshell looks.
Backstage Report
50 Select Red, White, and Blue patterns are 50% off!
Backstage Report
Meg got an inside look into our new course, and see why she thinks you need to register too!
Editors' Pick
Leopard print, stripes, and mod coats for fall.
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Have questions? Talk to librarian Greg. Find him at the branch or call the library at 415.355.5660.
Upcoming Events
- Great Teen Book Swap
- Saturday, August 30, 2014Visitacion Valley, Visitacion Valley General Floor Area
- Great Teen Book Swap
- Thursday, September 4, 2014Parkside, Parkside Teen's Area
- Great Teen Book Swap
- Friday, September 5, 2014West Portal, West Portal Teen's Area


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Ye told me to kill y'all
from Jay Z – D.O.A. (Death of Auto-Tune) Lyrics on Genius
(Kan)ye, who helped come up for the concept for this song
To help improve the quality of the lyrics, visit "D.O.A. (Death of Auto-Tune)" by Jay Z Lyrics and leave a suggestion at the bottom of the page


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Resources for You
Electronic Drug Registration and Listing Instructions
With the Food and Drug Administration Amendments Act of 2007 (Public Law 110-85) (FDAAA), as of June 1, 2009 registration and listing with Forms FDA 2656, 2657 and 2658 was discontinued. Electronic submission is now required unless a waiver is granted. Moving from a paper-based format to an electronic system has improved the timeliness and accuracy of the submissions.
To facilitate the submission of drug establishment registration and drug listing information (including labeling as specified under 21 CFR 207.25), FDA adopted the use of Extensible Markup Language (XML) files in the Structured Product Labeling (SPL) format. To transmit the SPL formatted submission firms must use the FDA's Electronic Submission Gateway (ESG).
New Information
- FDA has stopped issuing National Health Related Items Code (NHRIC) and National Drug Code (NDC) labeler codes to manufacturers for use with medical devices. Under 21 CFR 801.57, after the date the device must bear a unique device identifier (UDI) on its label or on September 24, 2018 if the device is not required to bear a UDI on its label, any NHRIC or NDC number assigned to a device is rescinded and may no longer be on the label. A labeler may continue to use an NHRIC or NDC labeler code under a system for the issuance of UDIs if the labeler submits a request for continued use of the labeler code to FDA by September 24, 2014 and receives approval for continued use. To receive instructions for requesting continued use of an NHRIC or NDC labeler code, please submit a question at the UDI help desk: http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/UniqueDeviceIdentification/ucm368904.htmPlease see Summary of Compliance Dates for the UDI Final Rule, www.fda.gov/udi to determine when your device must bear a UDI on its label.Labelers may begin adopting UDIs for unique product identification rather than request NHRIC or NDC labeler codes for their devices prior to the device's compliance date. Please contact an FDA-accredited issuing agency to obtain a UDI. Also, please note that under 21 CFR 801.30(b), a combination product may still bear an NDC number on its label.
Electronic Submissions Gateway
The ESG is an agency-wide entry point for various electronic submissions. The ESG authenticates and validates electronic submissions and routes it to the appropriate Center. In order to use the FDA's Electronic Submission Gateway firms must apply for an ESG Account. To obtain an ESG account go to: http://www.fda.gov/ForIndustry/ElectronicSubmissionsGateway/ucm114831.htm.
The process for establishing an ESG account may involve a delay before drug registration and listing information can be received electronically by FDA. FDA encourages owners and operators subject to registration and listing to establish their ESG accounts as soon as possible; establishing an ESG account 4-6 weeks in advance of the time when the owner or operator must register, list, or update a registration or listing will best ensure that electronic submissions are not delayed. SPL files including all image files are then placed in a folder and sent through the FDA Gateway. The name of the "center" and the "type of submission" are used to properly route the files. For electronic drug registration and listing, the center is "OC" and the type of submission is "SPL".
In order to complete an SPL submission, it is necessary to include firm's DUNS number. For more information visit: http://www.fda.gov/ForIndustry/DataStandards/StructuredProductLabeling/ucm162544.htm.
To create the SPL formatted XML file firms generally use a tool. Some firms may have a document management system which contains this functionality. Other firms will need to obtain a tool. There is a free tool available through FDA; XForm.
Xform is a software tool for creating XML format which provides user interface for the XML data. Xforms can be accessed via the link below: http://www.fda.gov/ForIndustry/DataStandards/StructuredProductLabeling/ucm189651.htm
Additional SPL resources:
Technical specifications for creation of the electronic files are provided in the following technical documents, which can be found on the FDA Data Standards Council website:
- Structured Product Labeling Implementation Guide for FDA Drug Establishment Registration and Drug Listing
- Step-by-Step Instructions for Creating Structured Product Labeling (SPL) Files for Drug Establishment Registration and Drug Listing
- Structured Product Labeling Validation Procedures for Drug Establishment Registration and Drug Listing
Verify Submission Status
Please note that the accuracy of the data submitted on the SPL, will be validated. Possible errors associated with the submission, will generate a notification email with the detailed information on the type of error and will be sent to the firm's ESG account. If the SPL file fails validation you will receive an error report within 24-72 hours. At this time, companies will not receive automatic confirmation if their submission passes validation.
Registration information can be verified on Drug Establishment Current Registration Site (DECRS): http://www.fda.gov/Drugs/InformationOnDrugs/ucm135778.htm.
DECRS is updated daily. Questions can be directed to: email@example.com.
Labeler Code Request:
If a firm is already assigned a labeler code, the existing labeler code must be included on the Labeler Code Request SPL. This will enable the firm to submit electronic drug listing SPLs. If you're requesting a new labeler code, you'll be notified of the assignment through an official email. Once all the requested information is provided, allow 30 days to receive the assignment notification. To check the status after 30 days, you can send an email to: firstname.lastname@example.com.
Listing status for most drugs can be checked on FDA's NDC Directory, which is updated daily: http://www.fda.gov/Drugs/InformationOnDrugs/ucm142438.htm.
NDC Directory does not include animal drugs; blood products, or human drugs that are not in final marketed form, such as Active Pharmaceutical Ingredients(APIs), drugs for further processing, drugs manufactured exclusively for a private label distributor. To check the listing status for these products send an email to:
- CVM products: email@example.com
- CBER products: firstname.lastname@example.com
- CDER products: firstname.lastname@example.com.
To apply for a waiver from the requirement to electronically submit drug establishment registration and drug listing information, provide a written request with a complete explanation of why use of electronic means is not reasonable for you. Submit the request to:
SPL Coordinator
U.S. Food and Drug Administration (HF-18)
Room 12B-16
5600 Fishers Lane
Rockville, MD 20857-0001
Phone: 1-888-463-6332
If you are granted a waiver, you will be instructed as to how to submit the registration and listing information.
For Technical questions contact: email@example.com
For Regulatory questions contact: firstname.lastname@example.com
Related Links
- Introduction to eDRLS
National Drug Code Directory NDC Product File Definitions NDC Package File Definitions Drug Establishments Current Registration Site
- Regulatory Guidance: Providing Regulatory Submissions in Electronic Format – Drug Establishment Registration and Drug Listing (PDF - 103KB)
Structured Product Labeling Resources Electronic Submissions Gateway Xforms


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WFIU Public Radio
WTIU Public Television
Choose which station to support!
Russian lawmakers aim to restrict GMO imports and ban GMO production within the country.
After being pronounced dead by many observers, the new legislation was passed in a surprise vote earlier this week. Some of the changes may surprise you.
What is RSS? RSS makes it possible to subscribe to a website's updates instead of visiting it by delivering new posts to your RSS reader automatically. Choose to receive some or all of the updates from Earth Eats:
Earth Eats is a weekly podcast, public radio program and blog bringing you the freshest news and recipes inspired by local food and sustainable agriculture. Learn more »
Annie Corrigan is the producer of Earth Eats, and an announcer and producer at WFIU Public Radio. Learn more »
Daniel Orr is a professional chef, restaurateur, blogger, and author of a number of cookbooks. Learn more »
Copyright © 2014, The Trustees of Indiana University | Copyright Complaints
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"Poor sound quality!"
I would not recommend this audio book, because the sound quality is very poor. As usual, Eckhart Tolle does an exceptional job, but the sound level is way too low and not real clear.
Report Inappropriate Content
If you find this review inappropriate and think it should be removed from our site, let us know. This report will be reviewed by Audible and we will take appropriate action.


text: 8:46am, Tue 5 Feb 2013 Granada Weather and Travel Snow in the North West: Your pictures Last updated Thu 17 Jul 2014 UK Weather Travel Traffic Snow in Blackley Credit: Stacey Sheffield Snow in Glossop Credit: Emma Price Icy weather in Saddleworth Credit: Keri Eldridge Hadfield in Glossop Credit: Rupert Arnthal Share Tweet Plus Reddit More on this story No sign of things warming up A marked wind chill develops this week as winds increase 2:09 pm, Sun 31 Mar 2013 Daylight saving starts on Sunday at 1am Clocks go forward one hour tonight 3:12 pm, Sat 30 Mar 2013 Remaining cold but some lovely sunshine around High pressure keeps our weather settled for the remainder of the bank holiday weekend. Hard frosts and sunny spells . 1:08 pm, Sat 30 Mar 2013


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kickoffs is a valid word in this word list. For a definition, see the external dictionary links below.
The word "kickoffs" uses 8 letters: C F F I K K O S.
No direct anagrams for kickoffs found in this word list.
Adding one letter to kickoffs does not form any other word in this word list.Words within kickoffs not shown as it has more than seven letters.
Try a search for kickoffs in these online resources (some words may not be found):
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All words formed from kickoffs by changing one letter
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Welcome to all of our new members!! Hope to meet all of you at our next meeting!! Great Memphis Chapter President, Onika Shirley Read More
Welcome to the Memphis local chapter page and congratulations on joining a well-respected national membership organization that strives to propel women to build relationships, gain exposure and grow.
April Davis, Vice President -Operations Manager- C & L Bus Repair Service
- Saturday, August 9, 2014: "Don't Be a Bully"
- Saturday, July 12, 2014: National Awareness
- Saturday, June 7, 2014: Hunger Awareness
Welcome to all of our new members!!!!
National Awareness
Come and join us today at 2:00 pm to collaborate on National Awareness Meeting are held at the Southhaven Library. 8554 Northwest Drive, off of Stateline. Hope to see you there!!!! Read More
May 3rd Meeting Cancelled!!!!
See you ladies next month!!! Read More
Body by Vi
Check the project 10 challenge out... Project 10 is Challenging the World… 10 lbs. at a Time Challenge yourself to lose 10 lbs., or build 10 lbs. of muscle with PROJECT 10. Then Challenge others to do the same. The more you Challenge, the more fun it is, the more likely you ALL are to succeed. For every 10 lbs. lost, you can win money and help PROJECT 10@ mKids. Who will you challenge today? Thanks!! http://resultsyoucansee.bodybyvi.com/ Read More
What can almost 500,000 NAPW Sisters nationwide do together this Holiday Season? Send a free e-letter to help move a Workplace Bill forward! Get Chapter credit for this charitable act! Send this to your chapter members for them to participate by December 31st and your chapter will be able to add this Act to its list of NAPW Charitable Acts performed in the month of December. The Healthy Workplace Bill Today, in the U. S., workplace ... Read More
December meeting cancellation!!!!
Due to the weather and road condition on some of the side roads I am canceling the meeting for today. I was really looking forward to this months meeting, but it's better to be safe than sorry. Also, St. Jude Marathon canceled due to weather, safety conditions. We will have another opportunity to participate and hopefully we will be available for the re-scheduled event. Everyone please have a warm and safe weekend Thank you, Onika Shirley Greater Memphis Chapter President Read More
December Meeting
Hey! I'm a new member, so forgive me if this is common knowledge, but where is the monthly meeting held? Read More
Macy's Women Wardrobe Event!!!!
Macy's is proud to announce a partnership with the National Association of Professional Women. We are having a Women's Wardrobe event in 17 Macy's locations across the country on August 24th. Date: Saturday, August 24th Time: 2-4pm "Join us at Macy's for a shopping party that will feature music from our favorite DJ and models wearing fashions from the Macy's Work Wardrobe Style Guide. Customers can enjoy sips and sweets while they shop and receive stylin... Read More


text: Pick Up Your Socks...and Other Skills Growing Children Need! : a Practical Guide to Raising Responsible Children by Elizabeth Crary buy used Used & Rare price $5.82 new from $12.88 shop with confidence SPECIAL SHIPPING CONSIDERATIONS FOR USED & RARE ITEMS. Please see the special considerations for shipping Used & Rare items, including extended delivery times, possible import duties & taxes. Availability: Ships within 1 week Format: Softcover Publisher: Parenting Press Condition: The following ISBNs are associated with this title: ISBN - 10: 0943990521 ISBN - 13: 9780943990521 Seller Comments: Ex-Library Book-will contain Library Markings. Light shelving wear with minimal damage to cover and bindings. Pages show minor use. Help save a tree. Buy all your used books from Thriftbooks. Read. Recycle and Reuse. From the Publisher Responsibility...a skill you can teach. Obedience vs responsibility...what''s the difference, why both are important, see Chapter 1. Building skills...memory, motivation and language, common words to avoid that encourge irresponsible behavior, see Chapter 2. Child guidance...set reasonable limits, develop effective consequences, utilize humor, see Chapter 3. Household jobs...find out at what ages do children do 18 common tasks, see Chapter 4. Schoolwork...ways to help kids with spelling or math, see Chapter 5. Independent living...ways kids can respond to peer pressure, dealing with anger, become emotionally independent, see Chapter 6. Putting it all together...develop a plan to deal with persistent problems, resolve differences with your spouse, see Chapter 7.


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No Expedia Cancellation Fees
Book, change or cancel almost any hotel without paying an Expedia fee
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Here, moderate to plus hotels are complemented by a nightlife scene that thrives along one of the major commercial arteries of Bangkok. The mix is further enhanced by street stalls, international restaurants, antique shops, traditional stores, and large shopping complexes such as Sukhumvit Plaza, Times Square, Robinsons, and the up-market Emporium. The skytrain offers speedy access along the thoroughfare.