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Sample records for call admission control

  1. Call Admission Control in Mobile Cellular Networks

    CERN Document Server

    Ghosh, Sanchita

    2013-01-01

    Call Admission Control (CAC) and Dynamic Channel Assignments (DCA) are important decision-making problems in mobile cellular communication systems. Current research in mobile communication considers them as two independent problems, although the former greatly depends on the resulting free channels obtained as the outcome of the latter. This book provides a solution to the CAC problem, considering DCA as an integral part of decision-making for call admission. Further, current technical resources ignore movement issues of mobile stations and fluctuation in network load (incoming calls) in the control strategy used for call admission. In addition, the present techniques on call admission offers solution globally for the entire network, instead of considering the cells independently.      CAC here has been formulated by two alternative approaches. The first approach aimed at handling the uncertainty in the CAC problem by employing fuzzy comparators.  The second approach is concerned with formulation of CAC ...

  2. An Intelligent Call Admission Control Decision Mechanism for Wireless Networks

    CERN Document Server

    S., Ramesh Babu H; S, Satyanarayana P

    2010-01-01

    The Call admission control (CAC) is one of the Radio Resource Management (RRM) techniques plays instrumental role in ensuring the desired Quality of Service (QoS) to the users working on different applications which have diversified nature of QoS requirements. This paper proposes a fuzzy neural approach for call admission control in a multi class traffic based Next Generation Wireless Networks (NGWN). The proposed Fuzzy Neural Call Admission Control (FNCAC) scheme is an integrated CAC module that combines the linguistic control capabilities of the fuzzy logic controller and the learning capabilities of the neural networks .The model is based on Recurrent Radial Basis Function Networks (RRBFN) which have better learning and adaptability that can be used to develop the intelligent system to handle the incoming traffic in the heterogeneous network environment. The proposed FNCAC can achieve reduced call blocking probability keeping the resource utilisation at an optimal level. In the proposed algorithm we have c...

  3. TCP-Call Admission Control Interaction in Multiplatform Space Architectures

    Directory of Open Access Journals (Sweden)

    Georgios Theodoridis

    2007-06-01

    Full Text Available The implementation of efficient call admission control (CAC algorithms is useful to prevent congestion and guarantee target quality of service (QoS. When TCP protocol is adopted, some inefficiencies can arise due to the peculiar evolution of the congestion window. The development of cross-layer techniques can greatly help to improve efficiency and flexibility for wireless networks. In this frame, the present paper addresses the introduction of TCP feedback into the CAC procedures in different nonterrestrial wireless architectures. CAC performance improvement is shown for different space-based architectures, including both satellites and high altitude platform (HAP systems.

  4. Power Control Technique for Efficient Call Admission Control in Advanced Wirless Networks

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    Ch. Sreenivasa Rao

    2012-06-01

    Full Text Available In 4G networks, call admission control techniques have been proposed to provide Quality of Service (QoS in a network by restricting the access to network resources. Power control is essential in call admission control in order to provide fair access to all users, improve battery lifetime and system performance. But the existing call admission control algorithms rarely consider the power controlling techniques in the handoff process for different traffic classes. In this paper, we propose to develop a power controlled call admission control scheme for handoff in the advanced wireless networks. The incoming call measures the initial interference on it and then the base station starts transmitting the packets to the new call. The new call is rejected when the interference reaches a threshold value.Whenever an existing call meets the power constraint, the transmit power is decremented based on thetraffic class and incoming call obtains this information by monitoring the interference received on it. Theconvergence of the power control algorithm is checked and the power levels of all incoming calls areadjusted. From our simulation results we prove that this power control technique provides efficienthandoff in the 4G networks by increasing the throughput and reducing the delay of the existing users.

  5. Mitigating Handoff Call Dropping in Wireless Cellular Networks: A Call Admission Control Technique

    Science.gov (United States)

    Ekpenyong, Moses Effiong; Udoh, Victoria Idia; Bassey, Udoma James

    2016-06-01

    Handoff management has been an important but challenging issue in the field of wireless communication. It seeks to maintain seamless connectivity of mobile users changing their points of attachment from one base station to another. This paper derives a call admission control model and establishes an optimal step-size coefficient (k) that regulates the admission probability of handoff calls. An operational CDMA network carrier was investigated through the analysis of empirical data collected over a period of 1 month, to verify the performance of the network. Our findings revealed that approximately 23 % of calls in the existing system were lost, while 40 % of the calls (on the average) were successfully admitted. A simulation of the proposed model was then carried out under ideal network conditions to study the relationship between the various network parameters and validate our claim. Simulation results showed that increasing the step-size coefficient degrades the network performance. Even at optimum step-size (k), the network could still be compromised in the presence of severe network crises, but our model was able to recover from these problems and still functions normally.

  6. Optimizing Voip Using A Cross Layer Call Admission Control Scheme

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    Mumtaz AL-Mukhtar

    2013-07-01

    Full Text Available Deployingwireless campus network becomes popular in many world universities for the services that areprovided.However, it suffers from different issues such as low VoIP network capacity, network congestioneffect on VoIP QoS and WLAN multi rate issue due to linkadaptation technique. In this paper a cross layercall admission control (CCAC scheme is proposed to reduce the effects of these problems on VoWLANbased on monitoring RTCPRR(RealTime Control Protocol ReceiverReportthat provides the QoS levelfor VoIP and monitoring the MAC layer for any change in the data rate. If the QoS level degrades due toone of the aforementioned reasons, a considerable change in the packet size or the codec type will be thesolution. A wireless campus network issimulatedusing OPNET 14.5 modeler and many scenarios aremodeled to improve this proposed scheme.

  7. Adaptive Call Admission Control Based on Reward-Penalty Model in Wireless/Mobile Network

    Institute of Scientific and Technical Information of China (English)

    Jian-Hui Huang; De-Pei Qian; Sheng-Ling Wang

    2007-01-01

    A dynamic threshold-based Call Admission Control (CAC) scheme used in wireless/mobile network for multi- class services is proposed. In the scheme, each class's CAC thresholds are solved through establishing a reward-penalty model which strives to maximize network's revenue. In order to lower Handoff Dropping Probability (HDP), the scheme joints packet and connection levels Quality of Service constraints, designing a bandwidth degradation algorithm to accept handoff calls by degrading existing calls' bandwidth during network congestion. Analyses show that the CAC thresholds change adaptively with the average call arrival rate. The performance comparison shows that the proposed scheme outperforms the Mobile IP Reservation scheme.

  8. Performance of a Two-Level Call Admission Control Scheme for DS-CDMA Wireless Networks

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    Abraham O. Fapojuwo

    2007-11-01

    Full Text Available We propose a two-level call admission control (CAC scheme for direct sequence code division multiple access (DS-CDMA wireless networks supporting multimedia traffic and evaluate its performance. The first-level admission control assigns higher priority to real-time calls (also referred to as class 0 calls in gaining access to the system resources. The second level admits nonreal-time calls (or class 1 calls based on the resources remaining after meeting the resource needs for real-time calls. However, to ensure some minimum level of performance for nonreal-time calls, the scheme reserves some resources for such calls. The proposed two-level CAC scheme utilizes the delay-tolerant characteristic of non-real-time calls by incorporating a queue to temporarily store those that cannot be assigned resources at the time of initial access. We analyze and evaluate the call blocking, outage probability, throughput, and average queuing delay performance of the proposed two-level CAC scheme using Markov chain theory. The analytic results are validated by simulation results. The numerical results show that the proposed two-level CAC scheme provides better performance than the single-level CAC scheme. Based on these results, it is concluded that the proposed two-level CAC scheme serves as a good solution for supporting multimedia applications in DS-CDMA wireless communication systems.

  9. Performance of a Two-Level Call Admission Control Scheme for DS-CDMA Wireless Networks

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    Fapojuwo Abraham O

    2007-01-01

    Full Text Available We propose a two-level call admission control (CAC scheme for direct sequence code division multiple access (DS-CDMA wireless networks supporting multimedia traffic and evaluate its performance. The first-level admission control assigns higher priority to real-time calls (also referred to as class 0 calls in gaining access to the system resources. The second level admits nonreal-time calls (or class 1 calls based on the resources remaining after meeting the resource needs for real-time calls. However, to ensure some minimum level of performance for nonreal-time calls, the scheme reserves some resources for such calls. The proposed two-level CAC scheme utilizes the delay-tolerant characteristic of non-real-time calls by incorporating a queue to temporarily store those that cannot be assigned resources at the time of initial access. We analyze and evaluate the call blocking, outage probability, throughput, and average queuing delay performance of the proposed two-level CAC scheme using Markov chain theory. The analytic results are validated by simulation results. The numerical results show that the proposed two-level CAC scheme provides better performance than the single-level CAC scheme. Based on these results, it is concluded that the proposed two-level CAC scheme serves as a good solution for supporting multimedia applications in DS-CDMA wireless communication systems.

  10. Performance Analysis of Prioritized Call Admission Control Schemes for Integrated Traffic in Wireless Network

    Directory of Open Access Journals (Sweden)

    Madhu Jain

    2013-01-01

    Full Text Available Wireless/mobile communication systems are becoming increasingly popular in recent years. As the wireless resources are scarce, it is important to allocate resources efficiently and carefully, in order to achieve maximum output. The call admission control schemes play a significant role in providing the desired quality of service (QoS by judiciously assigning the radio channels that are available in a micro cell. In this paper, we present two call admission control (CAC schemes for wireless mobile network, (i Prioritized call admission control (PCAC scheme (S1 and (ii Prioritized call admission control scheme with releasing function (S2. Both schemes support integrated traffic i.e. data and voice for both new and handoff attempts. Guard channel concept is used to give the priority to the handoff attempts. To admit more handoff attempts in the cellular system, buffering process is used for the handoff attempts. The concept of balking and reneging is also incorporated for both the schemes. The calls arrive in poisson fashion whereas channel holding time and cell residence times are exponentially distributed. The arrival rate of handoff attempts is computed by using iterative algorithm. Various performance metrics such as blocking probability of new call, blocking probability of handoff data/voice attempts, time out probability of handoff data/voice attempts, force termination probability of handoff data/voice attempts, waiting time of handoff data/voice attempts, carried load, etc. are determined. The sensitivity analysis has also been carried out to facilitate the insights of controllable parameters for real time systems

  11. A NOVEL CALL ADMISSION CONTROL SCHEME IN CELLULAR/WLAN INTEGRATION AND PERFORMANCE ANALYSIS

    Institute of Scientific and Technical Information of China (English)

    Xia Weiwei; Shen Lianfeng

    2009-01-01

    In order to achieve the Quality of Service (QoS) provisioning and efficient resource utilization in cellular network and Wireless Local Area Network (WLAN) integration, an Integrated Service-Based Call Admission Control (ISB-CAC) scheme is proposed in this paper. The integrated network is modeled by using multi-dimensional Markov chains. The numerical analysis is presented to evaluate the important performance measures such as the blocking probability of originating calls, the dropping probability, and the average transfer time, etc. The steady-state probabilities of the multi-dimensional Markov chains are obtained by using an iterative approach, and the CAC parameters are optimally designed. The analytical model is validated by the computer simulation. It is shown that compared with the conventional WLAN-First Call Admission Control (WF-CAC) scheme, the proposed ISB-CAC scheme not only provides better QoS for mobile users but also utilizes the bandwidth resources more efficiently.

  12. Call Admission Control performance model for Beyond 3G Wireless Networks

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    Ramesh Babu H.S

    2009-12-01

    Full Text Available The Next Generation Wireless Networks (NGWN will be heterogeneous in nature where the different Radio Access Technologies (RATs operate together .The mobile terminals operating in this heterogeneous environment will have different QoS requirements to be handled by the system. These QoS requirements are determined by a set of QoS parameters. The radio resource management is one of the key challenges in NGWN.Call admission control is one of the radio resource management technique plays instrumental role in ensure the desired QoS to the users working on different applications which have diversified QoS requirements from the wireless networks . The call blocking probability is one such QoS parameter for the wireless network. For better QoS it is desirable to reduce the call blocking probability. In this customary scenario it is highly desirable to obtain analytic Performance model. In this paper we propose a higher order Markov chain based performance model for call admission control in a heterogeneous wireless network environment. In the proposed algorithm we have considered three classes of traffic having different QoS requirements and we have considered the heterogeneous network environment which includes the RATs that can effectively handle applications like voice calls, Web browsing and file transfer applications which are with varied QoS parameters. The paper presents the call blocking probabilities for all the three types of traffic both for fixed and varied traffic scenario.Keywords: Radio Access Technologies; Call admission control; Call blocking probability; Markov model; Heterogeneous wireless Networks.

  13. UTILITY BASED SCHEDULING AND CALL ADMISSION CONTROL FOR LONG TERM EVOLUTION NETWORKS

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    J. Vijay Franklin

    2012-01-01

    Full Text Available In this study, we propose to design a call admission control algorithm which schedules the channels for Real time and non-real time users. In Long Term Evolution (LTE 3GPP Networks, several works were done on call admission control but these works rarely considers scheduling of resources to the real time and non-real time users.When the system meets traffic oriented performance degration, maximum resources are utilized for load balancing and to maintain the consistent quality. In order to avoid the channel degradation and improve the Quality of Service (QoS, the call requests are classified into New Call (NC request and Handoff Call (HC request and the type of services are classified as VoIP and video. Then based upon the Received Signal Strength (RSS value, the channel is estimated as good channel or bad channel. Resource allocation is made for VoIP users based on traffic density. Then non-VoIP users and the non-real time users are allocated resource blocks using the channel condition based marginal utility function. When there are no sufficient resources to allocate, it allocates the resources of bad channel users there by degrading their service. We have designed the network topology with G (n and B (n for representing the available good and bad channels. We investigate the performance degradation when the real time, Non real Time, video and VOIP environments based on RSS threshold value.Comparison is made with the VOS in terms of the paramenters like throughput,bandwidth,delay,fairness and rate. Our proposed method provides good performance and quality.From our simulation results we show that this admission control algorithm provides channel quality and prioritizes the handover calls over new calls which allocates resources to all kinds of users.

  14. Call Admission Control performance model for Beyond 3G Wireless Networks

    CERN Document Server

    Babu, H S Ramesh; Satyanarayana, P S

    2010-01-01

    The Next Generation Wireless Networks (NGWN) will be heterogeneous in nature where the different Radio Access Technologies (RATs) operate together .The mobile terminals operating in this heterogeneous environment will have different QoS requirements to be handled by the system. These QoS requirements are determined by a set of QoS parameters. The radio resource management is one of the key challenges in NGWN. Call admission control is one of the radio resource management technique plays instrumental role in ensure the desired QoS to the users working on different applications which have diversified QoS requirements from the wireless networks . The call blocking probability is one such QoS parameter for the wireless network. For better QoS it is desirable to reduce the call blocking probability. In this customary scenario it is highly desirable to obtain analytic Performance model. In this paper we propose a higher order Markov chain based performance model for call admission control in a heterogeneous wireles...

  15. Novel Stochastic Model for Call Admission Control in Broadband Wireless Multimedia Networks

    Institute of Scientific and Technical Information of China (English)

    LIUGan; ZHUGuangxi; RUANYoulin; HUZhenping; WUWeimin; WANGDesheng

    2005-01-01

    As the increasing demand of the capacity of cellular networks, the cell sizes have become smaller than ever, which increases the probability of handoff one may experience during a service. To ensure the calls, QoS and high channel utilization, an effective call admission control is needed urgently. The well-known Guard channel method (GCM) which works with static fashion cannotadapt to the changes in traffic pattern, whereas, SDCA mechanism proposed by S. Wu can overcome that shortcoming due to its dynamic nature. Unfortunately, it is only suitable for single-service. In this paper, we establish a novel stochastic model to study the actual system so as to avoid coping with the complex multiple dimensions stochastic problem. Two wonderful features of the model make it competent for this role. On one hand, it can turnthe multiple steps of state transition into single step ofstate transition, which is a necessary condition for ideal birth-death processes. On the other hand, it can providea simple method to compute the approximation of the call dropping probabilities for multiple services, which facilitate our estimation for the acceptance ratio vector subject to QoS requirement. As a result, we get a multi-services dynamic call admission scheme to adapt for multiple types of services in mobile wireless networks. Numerical results show that our scheme steadily satisfies the constraint on call dropping probability of multi-services while maintaining a high channel throughput.

  16. Algorithms for Deterministic Call Admission Control of Pre-stored VBR Video Streams

    Directory of Open Access Journals (Sweden)

    Christos Tryfonas

    2009-08-01

    Full Text Available We examine the problem of accepting a new request for a pre-stored VBR video stream that has been smoothed using any of the smoothing algorithms found in the literature. The output of these algorithms is a piecewise constant-rate schedule for a Variable Bit-Rate (VBR stream. The schedule guarantees that the decoder buffer does not overflow or underflow. The problem addressed in this paper is the determination of the minimal time displacement of each new requested VBR stream so that it can be accommodated by the network and/or the video server without overbooking the committed traffic. We prove that this call-admission control problem for multiple requested VBR streams is NP-complete and inapproximable within a constant factor, by reducing it from the VERTEX COLOR problem. We also present a deterministic morphology-sensitive algorithm that calculates the minimal time displacement of a VBR stream request. The complexity of the proposed algorithm along with the experimental results we provide indicate that the proposed algorithm is suitable for real-time determination of the time displacement parameter during the call admission phase.

  17. A QoS Provisioning Recurrent Neural Network based Call Admission Control for beyond 3G Networks

    Directory of Open Access Journals (Sweden)

    Ramesh Babu H. S.

    2010-03-01

    Full Text Available The Call admission control (CAC is one of the Radio Resource Management (RRM techniques that plays influential role in ensuring the desired Quality of Service (QoS to the users and applications in next generation networks. This paper proposes a fuzzy neural approach for making the call admission control decision in multi class traffic based Next Generation Wireless Networks (NGWN. The proposed Fuzzy Neural call admission control (FNCAC scheme is an integrated CAC module that combines the linguistic control capabilities of the fuzzy logic controller and the learning capabilities of the neural networks. The model is based on recurrent radial basis function networks which have better learning and adaptability that can be used to develop intelligent system to handle the incoming traffic in an heterogeneous network environment. The simulation results are optimistic and indicates that the proposed FNCAC algorithm performs better than the other two methods and the call blocking probability is minimal when compared to other two methods.

  18. A QoS Provisioning Recurrent Neural Network based Call Admission Control for beyond 3G Networks

    CERN Document Server

    S., Ramesh Babu H; S, Satyanarayana P

    2010-01-01

    The Call admission control (CAC) is one of the Radio Resource Management (RRM) techniques that plays influential role in ensuring the desired Quality of Service (QoS) to the users and applications in next generation networks. This paper proposes a fuzzy neural approach for making the call admission control decision in multi class traffic based Next Generation Wireless Networks (NGWN). The proposed Fuzzy Neural call admission control (FNCAC) scheme is an integrated CAC module that combines the linguistic control capabilities of the fuzzy logic controller and the learning capabilities of the neural networks. The model is based on recurrent radial basis function networks which have better learning and adaptability that can be used to develop intelligent system to handle the incoming traffic in an heterogeneous network environment. The simulation results are optimistic and indicates that the proposed FNCAC algorithm performs better than the other two methods and the call blocking probability is minimal when compa...

  19. AN Enhanced SINR-Based Call Admission Control in 3G Networks

    Directory of Open Access Journals (Sweden)

    Moses Ekpenyong

    2011-11-01

    Full Text Available This paper presents the signal-to-interference plus noise ratio (SINR-based call admission control (CAC as an effective technique that guarantees signal quality for admitted users. We propose a CAC model that admits users as long as the SINR exceeds a threshold (th SINR . To reduce blocking, we ensure that the threshold level is maintained at a lower bound (lb thSINR −, convenient to keep the blocking probability ( Pb below a maximum value ( Pb−max. We simulate the CAC model with the Java programming language and evaluate the performance of the model. Simulation results show that our CAC scheme produce the expected performance that improves the network quality.

  20. Call Admission Control Algorithm for pre-stored VBR video streams

    CERN Document Server

    Tryfonas, Christos; Mehler, Andrew; Skiena, Steven

    2008-01-01

    We examine the problem of accepting a new request for a pre-stored VBR video stream that has been smoothed using any of the smoothing algorithms found in the literature. The output of these algorithms is a piecewise constant-rate schedule for a Variable Bit-Rate (VBR) stream. The schedule guarantees that the decoder buffer does not overflow or underflow. The problem addressed in this paper is the determination of the minimal time displacement of each new requested VBR stream so that it can be accomodated by the network and/or the video server without overbooking the committed traffic. We prove that this call-admission control problem for multiple requested VBR streams is NP-complete and inapproximable within a constant factor, by reducing it from the VERTEX COLOR problem. We also present a deterministic morphology-sensitive algorithm that calculates the minimal time displacement of a VBR stream request. The complexity of the proposed algorithm make it suitable for real-time determination of the time displacem...

  1. Call Admission Control with Bandwidth Reallocation for Adaptive Multimedia in High-Rate Short-Range Wireless Networks

    Institute of Scientific and Technical Information of China (English)

    ZHAIXuping; BIGuangguo; XUPingping

    2005-01-01

    In high-rate short-range wireless networks,CAC (Call admission control) scheme plays an important role in quality of service provisioning for adaptive multimedia services. Three functions, namely bandwidth satisfaction function, revenue rate function and bandwidth reallocation cost function, are firstly introduced. Based on these functions, an efficient CAC scheme, the Rev-RT-BRA (Reservation-based and Revenue test with Bandwidth reallocation) CAC scheme is proposed. The main idea is that it reserves some bandwidth for service classes with higher admission priority. The performance of the Rev-RT-BRA CAC scheme is analyzed by solving a multidimension Markov process. Both the numerical and simulation results are given. The advantages of the proposedRev-RT-BRA CAC scheme are as follows. (1) It maximizes the overall bandwidth satisfaction function at any system state. (2) It solves the unfairness problem in admitting multiple classes of services with different bandwidth requirenlents. (3) The required admission priority level can be guaranteed for various classes of services.

  2. GCAD: A Novel Call Admission Control Algorithm in IEEE 802.16 based Wireless Mesh Networks

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    Floriano De Rango

    2011-04-01

    Full Text Available In this paper, a GCAD-CAC (Greedy Choice with Bandwidth Availability aware Defragmentation algorithm is proposed. It is able to guarantee respect for data flow delay constraints defined by three different traffic classes. To achieve good results, the algorithm tries to accept all the new requests, but when a higher priority request is received, a lower priority admitted request is preempted. This preemption can leave some small gaps which are not sufficient for new connection admission; these gaps can be collected by the GCAD algorithm by activating a bandwidth availability based defragmentation process. The quality of the algorithm is shown by a comparison with two other algorithms found in the literature.

  3. FUZZY-LOGIC BASED CALL ADMISSION CONTROL FOR A HETEROGENEOUS RADIO ENVIRONMENT

    DEFF Research Database (Denmark)

    Ramkumar, Venkata; Mihovska, Albena D.; Prasad, Neeli R.;

    evalueret for en heterogen radio access-teknologier (rotter) scenario. Den QoS parametre varierer afhængigt af den type af ansøgninger, og aftalen mellem udbyderen og brugeren. Den foreslåede CAC er baseret på en fuzzy logik mekanisme, der består af to etaper, i første omgang den bedste celle i hver RAT er...... valgt ved hjælp af en fuzzy sproglig controller, og i anden fase den bedste RAT baseret på brugerens præferencer er valgt ved hjælp den fuzzy flere attribut beslutningsprocessen (MADM) metode. Resultaterne viser, at brugeren kan vælge den bedste celle i hver RAT bruge cellen udvælgelse algoritme og...

  4. Call Admission Control and Scheduling Schemes with QoS Support for Real-time Video Applications in IEEE 802.16 Networks

    Directory of Open Access Journals (Sweden)

    Ou Yang

    2006-05-01

    Full Text Available IEEE 802.16 networks are going to provide broadband wireless access with quality of service (QoS guarantee. In all of services, real-time video traffic plays an impeditive role because of its varying bit-rate and stringent delay constraint. To the best of our knowledge, no call admission control (CAC and scheduling schemes cover throughput expectation, delay constraint and fairness requirement simultaneously. In this paper, by taking advantage of traffic periodicity and regularity, a set of CAC and scheduling schemes for real-time video traffic in IEEE 802.16 networks is proposed. Specifically, two key parameters are studied to compromise throughput and delay, as well as, delay and fairness. Simulations with real life video traces show that the proposed schemes may well bear flexibility in balancing throughput, delay and fairness, or, offering significant throughput improvement with acceptable delay and fairness.

  5. Call Admission Control Method Based on AHP and MMTD%基于AHP和MMTD的呼叫接纳控制方法AM-CAC

    Institute of Scientific and Technical Information of China (English)

    王雪梅; 张登银

    2013-01-01

    提出一种统一的呼叫接纳控制方法。应用层次分析过程(AHP)实现系统建模,根据网络运营目标,对于决策所依据的诸多准则之间的重要性关系进行定性分析和定量描述,从而确定各准则在决策中的影响力;应用中介真值程度度量(MMTD)方法统一量化各影响因素相对各准则的真值程度,通过配置合理参数,来适应异构网络在技术特性、性能目标上的差异。仿真结果表明,文中所提方法对于网络的运营目标和偏好具有很好的适应能力。%An unified call admission control method was proposed,which adopted the Analytic Hierarchy Process ( AHP) to achieve sys-tem modeling. According to the targets of network operators,the pairwise relationship of importance among criterions associated with de-cison-making is analyzed qualitatively and described quantitatively,to determine influence of each criterion on decision-making;moreo-ver,the method of Measureing of Medium Truth Degree ( MMTD) is employed to quantify the truth degree of each factor relative to cri-terion,and reasonable parameters are configured to adapt to difference in technical characteristics and performance goals among heteroge-neous network. Simulation results show that the proposed method has a better ability to adapt to goals and preferences of network opera-tors.

  6. A lexicographic approach to constrained MDP admission control

    Science.gov (United States)

    Panfili, Martina; Pietrabissa, Antonio; Oddi, Guido; Suraci, Vincenzo

    2016-02-01

    This paper proposes a reinforcement learning-based lexicographic approach to the call admission control problem in communication networks. The admission control problem is modelled as a multi-constrained Markov decision process. To overcome the problems of the standard approaches to the solution of constrained Markov decision processes, based on the linear programming formulation or on a Lagrangian approach, a multi-constraint lexicographic approach is defined, and an online implementation based on reinforcement learning techniques is proposed. Simulations validate the proposed approach.

  7. Admission Control Techniques for UMTS System

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    P. Kejik

    2010-09-01

    Full Text Available Universal mobile telecommunications system (UMTS is one of the 3rd generation (3G cell phone technologies. The capacity of UMTS is interference limited. Radio resources management (RRM functions are therefore used. They are responsible for supplying optimum coverage, ensuring efficient use of physical resources, and providing the maximum planned capacity. This paper deals with admission control techniques for UMTS. An own UMTS simulation program and several versions of proposed admission control algorithms are presented in this paper. These algorithms are based on fuzzy logic and genetic algorithms. The performance of algorithms is verified via simulations.

  8. Self-optimisation of admission control and handover parameters in LTE

    NARCIS (Netherlands)

    Sas, B.; Spaey, K.; Balan, I.; Zetterberg, K.; Litjens, R.

    2011-01-01

    In mobile cellular networks the handover (HO) algorithm is responsible for determining when calls of users that are moving from one cell to another are handed over from the former to the latter. The admission control (AC) algorithm, which is the algorithm that decides whether new (fresh or HO) calls

  9. SARS: hospital infection control and admission strategies.

    Science.gov (United States)

    Ho, Pak-Leung; Tang, Xiao-Ping; Seto, Wing-Hong

    2003-11-01

    Nosocomial clustering with transmission to health care workers, patients and visitors is a prominent feature of severe acute respiratory syndrome (SARS). Hospital outbreaks of SARS typically occurred within the first week after admission of the very first SARS cases when the disease was not recognized and before isolation measures were implemented. In the majority of nosocomial infections, there was a history of close contact with a SARS patient, and transmission occurred via large droplets, direct contact with infectious material or by contact with fomites contaminated by infectious material. In a few instances, potential airborne transmission was reported in association with endotracheal intubation, nebulised medications and non-invasive positive pressure ventilation of SARS patients. In all SARS-affected countries, nosocomial transmission of the disease was effectively halted by enforcement of routine standard, contact and droplet precautions in all clinical areas and additional airborne precautions in the high-risk areas. In Hong Kong, where there are few private rooms for patient isolation, some hospitals have obtained good outcome by having designated SARS teams and separate wards for patient triage, confirmed SARS cases and step-down of patients in whom SARS had been ruled out. In conclusion, SARS represents one of the new challenges for those who are involved in hospital infection control. As SARS might re-emerge, all hospitals should take advantage of the current SARS-free interval to review their infection control programmes, alert mechanisms, response capability and to repair any identified inadequacies.

  10. A scalable admission control scheme based on time label

    Institute of Scientific and Technical Information of China (English)

    杨松岸; 杨华; 杨宇航

    2004-01-01

    Resource reservation protocols allow communicating hosts to reserve resources such as bandwidth to offer guaranteed service. However, current resource reservation architectures do not scale well for a large number of flows. In this paper, we present a simple reservation protocol and a scalable admission control algorithm, which can provide QoS guarantees to individual flows without per-flow management in the network core. By mapping each flow to a definite time, this scheme addresses the problems that limit the effectiveness of current endpoint admission control schemes. The overall admission control process is described. Analysis is used to explain the reasonability of our scheme and simulation validates its performance.

  11. A NEW ADMISSION CONTROL APPROACH BASED ON PREDICTION

    Institute of Scientific and Technical Information of China (English)

    Lu Kaining; Jin Zhigang; Zou Jun

    2002-01-01

    Admission control plays an important role in providing QoS to network users. Motivated by the measurement-based admission control algorithm, this letter proposed a new admission control approach for integrated service packet network based on traffic prediction. In the letter, FARIMA(p, d, q) models in the admission control algorithm is deployed. A method to simplify the FARIMA model fitting procedure and hence to reduce the time of traffic modeling and prediction is suggested. The feasibility-study experiments show that FARIMA models which have less number of parameters can be used to model and predict actual traffic on quite a large time scale. Simulation results validate the promising approach.

  12. Improving Experience-Based Admission Control through Traffic Type Awareness

    OpenAIRE

    Jens Milbrandt; Michael Menth; Jan Junker

    2007-01-01

    Experience-based admission control (EBAC) is a hybrid approach combining the classical parameter-based and measurement-based admission control. EBAC calculates an appropriate overbooking factor used to overbook link capacities with resource reservations in packet-switched networks. This overbooking factor correlates with the average peak-to-mean rate ratio of all admitted traffic flows on the link. So far, a single overbooking factor is calculated for the entire traffic aggregate. In this pap...

  13. Adaptive Distributed Admission Control in Differentiated Services Domains

    Institute of Scientific and Technical Information of China (English)

    SHAO Hua-gang; CHEN Xiao; WANG Wei-nong

    2007-01-01

    In this paper we propose a scalable admission control scheme for the QoS sensitivity traffic in DiffServ domains. In our scheme, the ingress routers perform admissibility test in a fully distributed and parallel fashion for requests based on our resource per-assigning mechanism.Then, we introduce a novel two phase token passing mechanism to adaptively optimize resource per-assigning among contending edge ronters in proportion to their traffic.In addition, we adopt a measurement based admission decision-making criterion to gain the benefit of high utilization of statistical multiplexing. Our simulation results indicate that even under very high request load it is possible to perform admission control and resource allocation in parallel without suffering in terms of response time, packet loss rate, or utilization.

  14. Performing Admission Control Concurrently in Core-stateless Networks

    Directory of Open Access Journals (Sweden)

    Huagang Shao

    2009-12-01

    Full Text Available In this paper we propose a concurrent admission control scheme for the QoS sensitivity traffic in core-stateless networks. In this scheme, the ingress router of core-stateless network domain is capable of performing admissibility test in concurrent for requests by per-assigning core-link resource to each edge routers. Then, we introduce a novel two phase token passing mechanism to adaptively optimize the proportion of bandwidth dividing among contending edge routers according to the dynamic of their traffic. In addition, we adopt a measurement based admission decisionmaking criterion to gain the benefit of high utilization of statistical multiplexing. Our simulation results are very promising indicating that even under very high request load it is possible to perform admission control and resource allocation in concurrent without suffering in terms of response time, packet loss rate, or utilization.

  15. Joint Resource Allocation and Admission Control Mechanism for an OFDMA-Based System

    DEFF Research Database (Denmark)

    Meucci, Filippo; Mihovska, Albena D.; Anggorojati, Bayu;

    2008-01-01

    This paper describes a Call Admission Control (CAC) mechanism that adapts the type of admitted users based on a proposed resource allocation strategy that responds to changes in the channel conditions. The admission control decides to admit new services according to the load of the cell and based...... on a-priori analysis of the radio link for the incoming request in terms of QoS satisfaction. For low to medium values of the load the Resource Allocation (RA) grants resources to user with higher priority. The priority is defined based on user and service characteristics. For very high load values...

  16. A scalable admission control scheme based on time label

    Institute of Scientific and Technical Information of China (English)

    杨松岸; 杨华; 杨宇航

    2004-01-01

    Resource reservation protocols allow communicating hosts to reserve resources such as bandwidth to offer guaranteed service. However,current resource reservation architectures do not scale well for a large number of flows. In this paper,we present a simple reservation protocol and a scalable admission control algorithm,which can provide QoS guarantees to individual flows without per-flow management in the network core. By mapping each flow to a definite time,this scheme addresses the problems that limit the effectiveness of current endpoint admission control schemes. The overall admission control process is described. Analysis is used to explain the reasonability of our scheme and simulation validates its performance.

  17. Advanced Fuzzy Logic Based Admission Control for UMTS System

    Directory of Open Access Journals (Sweden)

    P. Kejik

    2010-12-01

    Full Text Available The capacity of CDMA (Code Division Multiple Access systems is interference limited. Therefore radio resources management (RRM functions are used. They are responsible for supplying optimum coverage, ensuring efficient use of physical resources, and providing the maximum planned capacity. This paper deals with admission control techniques for UMTS (Universal Mobile Telecommunication System. A UMTS system model and four fuzzy logic based admission control algorithms are presented in this paper. Two new versions of fuzzy logic based admission control algorithms are presented there. All algorithms are mutually compared via simulations. Simulations show that the novel advanced fuzzy algorithm outperforms the other simulated algorithms (in terms of blocking probability, dropping probability and the number of active UEs in cell.

  18. Admission Control Algorithm for Guaranteeing Real-Time Anycast Flow

    Institute of Scientific and Technical Information of China (English)

    Weijia Jia; Zhang Chuanlin

    2002-01-01

    In this paper, we study admission control algorithm for anycast flow with real-time constraints. With the given time requirement, when the result of this algorithm give succeed information, we find route for the anycast flow requesting. Therefore, what we need to do is testing if the corresponding path rj has enough bandwidth for coming anycast flow requirement at source S with end-to-end deadline D. This admission control is scalable in terms of the number of flows can be admitted through local information of the routes.

  19. Power Admission Control with Predictive Thermal Management in Smart Buildings

    DEFF Research Database (Denmark)

    Yao, Jianguo; Costanzo, Giuseppe Tommaso; Zhu, Guchuan;

    2015-01-01

    This paper presents a control scheme for thermal management in smart buildings based on predictive power admission control. This approach combines model predictive control with budget-schedulability analysis in order to reduce peak power consumption as well as ensure thermal comfort. First...... appliances. The performance of the proposed control scheme is assessed by simulation based on the thermal dynamics of a real eight-room office building located at Danish Technical University....

  20. The role of admission control in assuring multiple services quality

    OpenAIRE

    Carvalho, Paulo; Lima, Solange; Freitas, Vasco

    2006-01-01

    Considering that network overprovisioning by itself is not always an attainable and everlasting solution, Admission Control (AC) mechanisms are recommended to keep network load controlled and assure the required service quality levels. This article debates the role of AC in multiservice IP networks, providing an overview and discussion of current and representative AC approaches, highlighting their main characteristics, pros and cons regarding the management of network services quality. I...

  1. Admission control in multiservice IP networks : architectural issues and trends

    OpenAIRE

    Lima, Solange; Carvalho, Paulo; Freitas, Vasco

    2007-01-01

    The trend toward the integration of current and emerging applications and services in the Internet has launched new challenges regarding service deployment and management. Within service management, admission control (AC) has been recognized as a convenient mechanism to keep services under controlled load and assure the required QoS levels, bringing consistency to the services offered. In this context, this article discusses the role of AC in multiservice IP networks and surveys current and r...

  2. Admission Control of VL in AFDX Under HRT Constraints

    Institute of Scientific and Technical Information of China (English)

    ZHOU Qiang; QU Zhenliang; LIN Hengqing

    2011-01-01

    Avionics full duplex switched ethernet (AFDX) is a switched interconnection technology developed to provide reliable data exchange with strong data transmission time guarantees in internal communication of the spacecraft or aircraft. Virtual link (VL) is an important concept of AFDX to meet quality of service (QoS) requirements in terms of end-to-end message deadlines. A VL admission control algorithm in AFDX network under hard real-time (HRT) constraints is studied. Based on the scheduling principle of AFDX protocol, a packet scheduling scheme under HRT constraints is proposed, and after that an efficient VL admission control algorithm is presented. Analytical proof that the algorithm can effectively determine whether VL should be admitted is given. Finally simulative examples are presented to promote the conclusion.

  3. Regressive Admission Control Enabled by Real-Time QOS Measurements

    Directory of Open Access Journals (Sweden)

    Mirjami Jutila

    2013-11-01

    Full Text Available We propose a novel regressive principle to Admission Control (AC assisted by real-time passive QoSmonitoring. This measurement-based AC scheme acceptsflows by default, but based on the changes in thenetwork QoS, it makes regressive decisions on the possible flow rejection, thus bringing cognition tothenetwork path. TheREgressive Admission Control (REAC system consists of three modules performing thenecessary tasks:QoS measurements, traffic identification, and the actual AC decision making and flowcontrol. There are two major advantages with this new scheme; (i significant optimization of theconnection start-up phase, and (ii continuous QoSknowledge of the accepted streams. In fact, the lattercombined with the REAC decisions can enable guaranteed QoS without requiring any QoS support fromthe network. REAC was tested on a video streaming test bed and proved to have a timely and realisticmatch between the network's QoS and the video quality.

  4. A Novel Admission Control Algorithm Based on Negotiation and Price

    Institute of Scientific and Technical Information of China (English)

    ZHANG Deng-yin; ZHANG Li; TANG Zhi-yun

    2005-01-01

    Admission control algorithm is a key component of a media server which supports Quality of Service(QoS).In this paper we present an admission control algorithm that exploits the elastic properties of the user requirements and the changing properties of system conditions.The characteristic of the algorithm can be expounded from these aspects:First,it provides multiple services to satisfy the different users' requirements regarding QoS and price.Second,it uses a worth function to select from media services with different QoS characteristics in the negotiation process.Finally,it employs a novel price policy to compute the charge for the service,which has a great effect on restricting the greediness of the users and therefore increase the overall user benefit.In the end of the paper,we compare the user benefit attained by our algorithm with that of other method.

  5. Admission control with long-range dependence traffic input

    Institute of Scientific and Technical Information of China (English)

    RAO Yun-hua; ZOU Xue-cheng

    2005-01-01

    The admission control scheme is investigated for a FIFO self-similar queuing system with Quality of Service (QoS) performance guarantees. Since the self-similar queuing system performance analysis is often carried out under the condition of infinite buffer, it is difficult to deduce the upper boundary of buffer overflow probability. To overcome this shortcoming, a simple overflow condition is proposed, which defines a buffer overflow occurrence whenever the arrival rate exceeds the service rate. The analytic formula for the buffer overflow probability upper boundary is easily obtained under this condition. The required bandwidth upper boundary with long-range dependence input and determined overflow probability is then derived from this formula. Based on the above analytic formulas, the upper boundaries of the admission control regions for homogeneous and heterogeneous long-range dependence traffic sources are separately obtained. Finally, an effective admission control scheme for long-range dependence input is proposed. Simulation studies with real traffic have confirmed the validity of these results.

  6. Effective Voice Calls Admission for Authorized User in Inter VOIP Network

    Directory of Open Access Journals (Sweden)

    Subashri T

    2010-10-01

    Full Text Available IP based voice transmission technology is a flexible, simpler and a cost effective implementation of voicetransmission. It provides a real convergence of various networks. This voice transmission technology doesnot support a quality that is equivalent to digitized voice, which is available in the existing PSTN networks.In addition to this, data network vulnerabilities affect the VOIP service causing a drop in the utilization ofvoice communication. In this paper, the quality of service for voice calls is ensured with the integration ofCAC mechanism with the bandwidth link utilization which makes an estimation of the demandedbandwidth. In terms of security, prevention of ARP cache poisoning attack is achieved by use of the signedMAC address response in local area networks. It makes the network confident that the admitted user is anauthorized user and also it verifies that only the authorized users’ information is exchanged over the localarea network. Also an approach that makes it difficult for the hacker’s to hack the data exchanged over thequality channel has been proposed.

  7. Improving Experience-Based Admission Control through Traffic Type Awareness

    Directory of Open Access Journals (Sweden)

    Jens Milbrandt

    2007-04-01

    Full Text Available Experience-based admission control (EBAC is a hybrid approach combining the classical parameter-based and measurement-based admission control. EBAC calculates an appropriate overbooking factor used to overbook link capacities with resource reservations in packet-switched networks. This overbooking factor correlates with the average peak-to-mean rate ratio of all admitted traffic flows on the link. So far, a single overbooking factor is calculated for the entire traffic aggregate. In this paper, we propose typespecific EBAC which provides a compound overbooking factor considering different types of traffic that subsume flows with similar peak-to-mean rate ratios. The concept can be well implemented since it does not require measurements of type-specific traffic aggregates. We give a proof of concept for this extension and compare it with the conventional EBAC approach. We show that EBAC with type-specific overbooking leads to better resource utilization under normal conditions and to faster response times for changing traffic mixes.

  8. Admission Control and Interference Management in Dynamic Spectrum Access Networks

    Directory of Open Access Journals (Sweden)

    Jorge Martinez-Bauset

    2010-01-01

    Full Text Available We study two important aspects to make dynamic spectrum access work in practice: the admission policy of secondary users (SUs to achieve a certain degree of quality of service and the management of the interference caused by SUs to primary users (PUs. In order to limit the forced termination probability of SUs, we evaluate the Fractional Guard Channel reservation scheme to give priority to spectrum handovers over new arrivals. We show that, contrary to what has been proposed, the throughput of SUs cannot be maximized by configuring the reservation parameter. We also study the interference caused by SUs to PUs. We propose and evaluate different mechanisms to reduce the interference, which are based on simple spectrum access algorithms for both PUs and SUs and channel repacking algorithms for SUs. Numerical results show that the reduction can be of one order of magnitude or more with respect to the random access case. Finally, we propose an adaptive admission control scheme that is able to limit simultaneously the forced termination probability of SUs and what we define as the probability of interference. Our scheme does not require any configuration parameters beyond the probability objectives. Besides, it is simple to implement and it can operate with any arrival process and distribution of the session duration.

  9. Admission Control for Multiservices Traffic in Hierarchical Mobile IPv6 Networks by Using Fuzzy Inference System

    Directory of Open Access Journals (Sweden)

    Jung-Shyr Wu

    2012-01-01

    Full Text Available CAC (Call Admission Control plays a significant role in providing QoS (Quality of Service in mobile wireless networks. In addition to much research that focuses on modified Mobile IP to get better efficient handover performance, CAC should be introduced to Mobile IP-based network to guarantee the QoS for users. In this paper, we propose a CAC scheme which incorporates multiple traffic types and adjusts the admission threshold dynamically using fuzzy control logic to achieve better usage of resources. The method can provide QoS in Mobile IPv6 networks with few modifications on MAP (Mobility Anchor Point functionality and slight change in BU (Binding Update message formats. According to the simulation results, the proposed scheme presents good performance of voice and video traffic at the expenses of poor performance on data traffic. It is evident that these CAC schemes can reduce the probability of the handoff dropping and the cell overload and limit the probability of the new call blocking.

  10. Optimal balanced control for call centers

    OpenAIRE

    Bhulai, S.; Farenhorst - Yuan, T.; Heidergott, B.F.; Laan, van der, G.

    2010-01-01

    This discussion paper led to a publication in 'Annals op Operations Research' , 2012, 201(1), 39-62. In this paper we study a challenging call center operation problem. The goal of our analysis is to identify an optimal policy for allocating tasks to agents. As a first step, we discuss promising randomized policies and use stochastic approximation for finding the optimal randomized policy when implemented via a Bernoulli scheme. As we will show in this paper, the performance of the call cente...

  11. Echolocation calls and communication calls are controlled differentially in the brainstem of the bat Phyllostomus discolor

    Directory of Open Access Journals (Sweden)

    Schuller Gerd

    2005-08-01

    Full Text Available Abstract Background Echolocating bats emit vocalizations that can be classified either as echolocation calls or communication calls. Neural control of both types of calls must govern the same pool of motoneurons responsible for vocalizations. Electrical microstimulation in the periaqueductal gray matter (PAG elicits both communication and echolocation calls, whereas stimulation of the paralemniscal area (PLA induces only echolocation calls. In both the PAG and the PLA, the current thresholds for triggering natural vocalizations do not habituate to stimuli and remain low even for long stimulation periods, indicating that these structures have relative direct access to the final common pathway for vocalization. This study intended to clarify whether echolocation calls and communication calls are controlled differentially below the level of the PAG via separate vocal pathways before converging on the motoneurons used in vocalization. Results Both structures were probed simultaneously in a single experimental approach. Two stimulation electrodes were chronically implanted within the PAG in order to elicit either echolocation or communication calls. Blockade of the ipsilateral PLA site with iontophoretically application of the glutamate antagonist kynurenic acid did not impede either echolocation or communication calls elicited from the PAG. However, blockade of the contralateral PLA suppresses PAG-elicited echolocation calls but not communication calls. In both cases the blockade was reversible. Conclusion The neural control of echolocation and communication calls seems to be differentially organized below the level of the PAG. The PLA is an essential functional unit for echolocation call control before the descending pathways share again the final common pathway for vocalization.

  12. Adaptive control of call acceptance in WCDMA network

    Directory of Open Access Journals (Sweden)

    Milan Manojle Šunjevarić

    2013-10-01

    Full Text Available In this paper, an overview of the algorithms for access control in mobile wireless networks is presented. A review of adaptive control methods of accepting a call in WCDMA networks is discussed, based on the overview of the algorithms used for this purpose, and their comparison. Appropriate comments and conculsions in comparison with the basic characteristics of these algorithms are given. The OVSF codes are explained as well as how the allocation method influences the capacity and probability of blocking.. Introduction We are witnessing a steady increase in the number of demands placed upon modern wireless networks. New applications and an increasing number of users as well as user activities growth in recent years reinforce the need for an efficient use of the spectrum and its proper distribution among different applications and classes of services. Besides humans, the last few years saw different computers, machines, applications, and, in the future, many other devices, RFID applications, and finally networked objects, as a new kind of wireless networks "users". Because of the exceptional rise in the number of users, the demands placed upon modern wireless networks are becoming larger, and spectrum management plays an important role. For these reasons, choosing an appropriate call admission control algorithm is of great importance. Multiple access and resource management in wireless networks Radio resource management of mobile networks is a set of algorithms to manage the use of radio resources with the aim is to maximize the total capacity of wireless systems with equal distribution of resources to users. Management of radio resources in cellular networks is usually located in the base station controller, the base station and the mobile terminal, and is based on decisions made on appropriate measurement and feedback. It is often defined as the maximum volume of traffic load that the system can provide for some of the requirements for the

  13. The Value of Service Rate Flexibility in an M/M/1 Queue with Admission Control

    CERN Document Server

    Dimitrakopoulos, Yiannis

    2012-01-01

    We consider a single server queueing system with admission control and the possibility to switch dynamically between a low and a high service rate, and examine the benefit of this service rate flexibility. We formulate a discounted Markov Decision Process model for the problem of joint admission and service control, and show that the optimal policy has a threshold structure for both controls. Regarding the benefit due to flexibility, we show that it is increasing in system congestion, and that its effect on the admission policy is to increase the admission threshold. We also derive a simple approximate condition between the admission reward and the relative cost of service rate increase, so that the service rate flexibility is beneficial. We finally show that the results extend to the expected average reward case.

  14. A Survey of PCN-Based Admission Control and Flow Termination

    NARCIS (Netherlands)

    Menth, Michael; Lehrieder, Frank; Briscoe, Bob; Eardley, Philip; Moncaster, Tony; Babiarz, Jozef; Charny, Anna; Zhang, Xinyang (Joy); Taylor, Tom; Chan, Kwok-Ho; Satoh, Daisuke; Geib, Ruediger; Karagiannis, Georgios

    2010-01-01

    Pre-congestion notification (PCN) provides feedback about load conditions in a network to its boundary nodes. The PCN working group of the IETF discusses the use of PCN to implement admission control (AC) and flow termination (FT) for prioritized realtime traffic in a DiffServ domain. Admission cont

  15. Optimal Switching Strategy between Admission Control and Pricing Control Policies with Two Types of Customers and Search Costs

    Directory of Open Access Journals (Sweden)

    Jae-Dong Son

    2015-01-01

    Full Text Available This paper presents a switching strategy between the admission control and the pricing control policies in a queueing system with two types of customers. For an arriving first-type customer, the decision maker has an option on which policy to choose between the two control policies; that is, one determines whether or not to admit the customer’s request for the service (admission control or decides a price of the customer’s request and offers it to the customer (pricing control. The second-type customers are only served when no first-type customers are present in the system in order to prevent the system from being idle. This would yield an extra income, which we refer to as the sideline profit. The so-called search cost, which is a cost paid to search for customers, creates the search option on whether to continue the search or not. We clarify the properties of the optimal switching strategy as well as the optimal search policy in relation to the sideline profit in order to maximize the total expected net profit. In particular, we show that when the sideline profit is sufficiently large, the two optimal switching thresholds exist with respect to the number of first-type customers in the system.

  16. A STUDY ON PROBE-BASED MULTICAST ADMISSION CONTROL AND ENHANCEMENT

    Institute of Scientific and Technical Information of China (English)

    Le Chunhui; He Jianhua; Yang Zongkai; Liu Wei

    2006-01-01

    To provide scalable and simple Quality of Service(QoS) mechanism for multicast services,Probe-Based Multicast Admission Control (PBMAC) scheme was proposed. In this paper, PBMAC is studied and a so-called subsequent request problem is found in PBMAC, which degrades system performance significantly when the network traffic is heavily loaded. Based on the analysis on subsequent request problem, an Enhance PBMAC (EPBMAC) scheme is proposed, in which complementary probing is devised to solve the problem. Using a new metric of normalized requested equivalent link capacity, the performance of PBMAC and EPBMAC is analyzed and evaluated. Two implementations are proposed for incremental deployment. The paper finally introduces evaluation with packet-based simulations. Both analytical and simulation results show the significant improvement in performance.

  17. Modular Design of Call Control Layer in Telephony Software

    Directory of Open Access Journals (Sweden)

    Ilija Basicevic

    2011-01-01

    Full Text Available An important property of a telephony system is the call control model on which it is based. It is noted that many call control models in the past, especially those in PSTN/ISDN networks follow centralized model. For such a model, typical is significant coupling of modules belonging to different services with the basic call control module which is aware of all active telephony features in the system. Although sometimes based on distributed model, VoIP call control models still manifest some of the listed problems of their predecessors. In this paper we present a fully distributed model which exhibits minimal coupling of modules belonging to different services and a simple basic call control module. The model is based on taxonomies of call control services which are presented in the paper. Also, the implementation of several typical services is described.

  18. A New Self-Adapting Admission Control Algorithm for Differential Service in Web Clusters

    Institute of Scientific and Technical Information of China (English)

    LIU An-feng; CHEN Zhi-gang; LONG Guo-ping

    2004-01-01

    A new admission control algorithm considering the network self-similar access characteristics is proposed.Taking advantage of the mathematical model of the network traffic admission control which can effectively overcome the self-similar characteristics of the network requests, through the scheduling of the differential service queue based on priority while at the same time taking into account various factors including access characteristics of requests, load information, etc, smoothness of the admission control is ensured by the algorithm proposed in this paper.We design a non-linear self-adapting control algorithm by introducing an exponential admission function, thus overcomes the negative aspects introduced by static threshold parameters.Simulation results show that the scheme proposed in this paper can effectively improve the resource utilization of the clusters, while at the same time protecting the service with high priority.Our simulation results also show that this algorithm can improve system stability and reliability too.

  19. An Autonomous Distributed Admission Control Scheme for IEEE 802.11 DCF

    CERN Document Server

    Patil, Preetam

    2007-01-01

    Admission control as a mechanism for providing QoS requires an accurate description of the requested flow as well as already admitted flows. Since 802.11 WLAN capacity is shared between flows belonging to all stations, admission control requires knowledge of all flows in the WLAN. Further, estimation of the load-dependent WLAN capacity through analytical model requires inputs about channel data rate, payload size and the number of stations. These factors combined point to a centralized admission control whereas for 802.11 DCF it is ideally performed in a distributed manner. The use of measurements from the channel avoids explicit inputs about the state of the channel described above. BUFFET, a model based measurement-assisted distributed admission control scheme for DCF proposed in this paper relies on measurements to derive model inputs and predict WLAN saturation, thereby maintaining average delay within acceptable limits. Being measurement based, it adapts to a combination of data rates and payload sizes, ...

  20. Combined Admission Control and Scheduling for QoS Differentiation in LTE Uplink

    DEFF Research Database (Denmark)

    Anas, Mohmmad; Rosa, Claudio; Calabrese, Francesco Davide;

    2008-01-01

    Long term evolution (LTE) architecture shall support end-to-end quality of service (QoS). For the QoS support and service differentiation it is important that the admission control and packet scheduling functionalities are QoS-aware. In this paper a combined admission control and a decoupled time......-frequency domain scheduling framework for LTE uplink is presented. The proposed framework is shown to effectively differentiate QoS user classes in a mixed traffic scenario....

  1. Multi-Stage Admission Control for Load Balancing in Next Generation Systems

    DEFF Research Database (Denmark)

    Mihovska, Albena D.; Anggorojati, Bayu; Luo, Jijun;

    2008-01-01

    This paper describes a load-dependent multi-stage admission control suitable for next generation systems. The concept uses decision polling in entities located at different levels of the architecture hierarchy and based on the load to activate a sequence of actions related to the admission...... of a user to the network, i.e., the ranking of the intermediate decisions is dynamic. The decision is controlled by passing a token between the base station (BS) and the gateway (GW), thereby considering the load status of the BS and the backhaul network. A token is assigned to the entity with the highest...... load. Each admission request will issue a flag whose colour will reflect the load level in this entity and will determine the correct sequence of the required admission control actions....

  2. A COMBINED ADMISSION CONTROL ALGORITHM WITH DA PROTOCOL FOR SATELLITE ATM NETWORKS

    Institute of Scientific and Technical Information of China (English)

    Lu Rong; Cao Zhigang

    2006-01-01

    Admission control is an important strategy for Quality of Service (QoS) provisioning in Asynchronous Transfer Mode (ATM) networks. Based on a control-theory model of resources on-Demand Allocation (DA) protocol, the paper studies the effect of the protocol on the statistical characteristics of network traffic,and proposes a combined connection admission control algorithm with the DA protocol to achieve full utilization of link resources in satellite communication systems. The proposed algorithm is based on the cross-layer-design approach. Theoretical analysis and system simulation results show that the proposed algorithm can admit more connections within certain admission thresholds than one that does not take into account the DA protocol. Thus, the proposed algorithm can increase admission ratio of traffic sources for satellite ATM networks and improve satellite link utilization.

  3. Integrated Proactive Admission Control Technique For both UDP And TCP Traffic Flows

    Directory of Open Access Journals (Sweden)

    Lakshmanan Senthilkumar

    2007-02-01

    Full Text Available Real time traffic adopting UDP at the transport layer needs some quality of service. It is offered through an admission control scheme. This paper adopts one such scheme which is extended for elastic traffics adopting TCP at the transport layer. The proposed scheme operates on reserving network resources on a proactive manner. It is based on the principle of telephone networks Erlang-B model. The blocking probability measured is used as a flow admission decision parameter. The effectiveness of the proposed admission control algorithm is determined here through simulation. It offers a fair admission rate to both UDP and TCP traffic flows. It also results in a better bottleneck link utilization at a comparatively lower overhead traffic.

  4. Two-Level Cross-Talked Admission Control Mechanism for QoS Guarantee in 802.11e EDCA

    Institute of Scientific and Technical Information of China (English)

    NIU Zhisheng; LIU Jing

    2008-01-01

    This paper describes a two-level cross-talked admission control mechanism that guarantees qual-ity of service (QoS) requirements for multimedia applications over wireless local area networks (WLANs). An enhanced distributed channel access analytical model is used to compute the maximum number of admitted users according to the QoS requirements and the packet arrival characters. Then, some channel resources are reserved for handoff calls based on the maximum number of admitted users and the call-level traffic model. The channel utilization ratio is also measured to reflect the current system traffic load. The maximum number of admitted users and the channel utilization ratio are used for admission control for applications with QoS requirements in the call level and for rate control of best effort applications in the packet level using the p-nonacknowledgement scheme. Thus, the QoS requirements are statistically guaranteed while the system is efficiently utilized. Simulations validate the effectiveness of this mechanism to guarantee the QoS and bandwidth utilization.

  5. QoS awared power and admission controls based on non-cooperative game theory in wireless networks

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    In order to better accommodate heterogeneous quality of service (QoS) in wireless networks, an algorithm called QeS-aware power and admission controls (QAPAC) is proposed. The system is modeled as u non- cooperative game where the users adjust their transmit powers to maximize the utility, thus restraining the interferences. By using adaptive utility functions and tunable pricing parameters according to QoS levels, this algorithm can well meet different QoS reqniremcnts and improve system capacity compared with those that ignore the QoS differ- ences.

  6. QoS awared power and admission controls based on non-cooperative game theory in wireless networks

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    In order to better accommodate heterogeneous quality of service (QoS) in wireless networks, an algorithm called QoS-aware power and admission controls (QAPAC) is proposed. The system is modeled as a non-cooperative game where the users adjust their transmit powers to maximize the utility, thus restraining the interferences. By using adaptive utility functions and tunable pricing parameters according to QoS levels, this algorithm can well meet different QoS requirements and improve system capacity compared w...

  7. Control, Communication, and Knowledge-Building in Asian Call Centers

    OpenAIRE

    Maria Lombard

    2015-01-01

    Communication within international call centers can be significantly complicated by breakdowns that result from multiple layers of corporate language.  This case study explores training sessions and documentation developed and delivered by an American team responsible for training international call center workers located in the Philippines.  Findings show that attempts to standardize and control workplace language can limit meaningful two-way communication, leaving workers to both question w...

  8. SERVICE-AWARE BASED FUZZY ADMISSION CONTROL SCHEME IN MULTI-SERVICE NETWORKS

    Institute of Scientific and Technical Information of China (English)

    Qiu Gongan; Zhang Shunyi; Liu Shidong

    2007-01-01

    Multi-service aggregated transmission is the direction of IP network. Providing different Quality of Service (QoS) assurance for different services has become a crucial problem in future network.Admission control is a vital function for multi-service IP network. This paper proposes a novel fuzzy admission control scheme based on coarse granularity service-aware technique. Different service has discriminative sensitivity to the same QoS characteristic parameter in general. The traffic class can be perceived by the service request parameter and the proposed QoS function. And requirements of different applications can be met by maintaining the life parameter. From simulation results, the proposed scheme shows a better QoS provisioning than those traditional fuzzy logic based methods under the same admission probability.

  9. Reduced Admissions for Acute Myocardial Infarction Associated with a Public Smoking Ban: Matched Controlled Study

    Science.gov (United States)

    Seo, Dong-Chul; Torabi, Mohammad R.

    2007-01-01

    There has been no research linking implementation of a public smoking ban and reduced incidence of acute myocardial infarction (AMI) among nonsmoking patients. An ex post facto matched control group study was conducted to determine whether there was a change in hospital admissions for AMI among nonsmoking patients after a public smoking ban was…

  10. Cognitive interference modeling with applications in power and admission control

    KAUST Repository

    Mahmood, Nurul Huda

    2012-10-01

    One of the key design challenges in a cognitive radio network is controlling the interference generated at coexisting primary receivers. In order to design efficient cognitive radio systems and to minimize their unwanted consequences, it is therefore necessary to effectively control the secondary interference at the primary receivers. In this paper, a generalized framework for the interference analysis of a cognitive radio network where the different secondary transmitters may transmit with different powers and transmission probabilities, is presented and various applications of this interference model are demonstrated. The findings of the analytical performance analyses are confirmed through selected computer-based Monte-Carlo simulations. © 2012 IEEE.

  11. A service-oriented admission control strategy for class-based IP networks

    OpenAIRE

    Lima, Solange; Carvalho, Paulo; Freitas, Vasco

    2008-01-01

    The clear trend toward the integration of current and emerging applications and services in the Internet launches new demands on service deployment and management. Distributed service-oriented traffic control mechanisms, operating with minimum impact on network performance, assume a crucial role as regards controlling services quality and network resources transparently and efficiently. In this paper, we describe and specify a lightweight distributed admission control (AC) model based on ...

  12. Adaptive control of call acceptance in WCDMA network

    OpenAIRE

    Milan Manojle Šunjevarić; Goran Z. Đukanović; Nataša M. Gospić

    2013-01-01

    In this paper, an overview of the algorithms for access control in mobile wireless networks is presented. A review of adaptive control methods of accepting a call in WCDMA networks is discussed, based on the overview of the algorithms used for this purpose, and their comparison. Appropriate comments and conculsions in comparison with the basic characteristics of these algorithms are given. The OVSF codes are explained as well as how the allocation method influences the capacity and probabilit...

  13. Control, Communication, and Knowledge-Building in Asian Call Centers

    Directory of Open Access Journals (Sweden)

    Maria Lombard

    2015-02-01

    Full Text Available Communication within international call centers can be significantly complicated by breakdowns that result from multiple layers of corporate language.  This case study explores training sessions and documentation developed and delivered by an American team responsible for training international call center workers located in the Philippines.  Findings show that attempts to standardize and control workplace language can limit meaningful two-way communication, leaving workers to both question what they are told and invent new ways of communicating.  Recommendations are presented in this study for a workplace writing model that can overcome language differences through authentic interaction.

  14. Joint QoS Multicast Power / Admission Control and Base Station Assignment : A Geometric Programming Approach

    OpenAIRE

    Karipidis, Eleftherios; Sidiropoulos, Nicholas; Tassiulas, Leandros

    2008-01-01

    The joint power control and base station (BS) assignment problem is considered under Quality-of-Service (QoS) constraints. If a feasible solution exists, the problem can be efficiently solved using existing distributed algorithms. Infeasibility is often encountered in practice, however, which brings up the issue of optimal admission control. The joint problem is NP-hard, yet important for QoS provisioning and bandwidth-efficient operation of existing and emerging cellular and overlay/underlay...

  15. Loss Performance Modeling for Hierarchical Heterogeneous Wireless Networks With Speed-Sensitive Call Admission Control

    DEFF Research Database (Denmark)

    Huang, Qian; Huang, Yue-Cai; Ko, King-Tim;

    2011-01-01

    A hierarchical overlay structure is an alternative solution that integrates existing and future heterogeneous wireless networks to provide subscribers with better mobile broadband services. Traffic loss performance in such integrated heterogeneous networks is necessary for an operator's network...

  16. A Study of Equivalence of Measurement-Based Admission Control Algorithms

    Institute of Scientific and Technical Information of China (English)

    GUI Zhi-bo; ZHOU Li-chao

    2003-01-01

    Measurement-Based Admission Control (MBAC) algorithms, as opposed to the more conservative worstcase parameter-based approach, are expressly designed to achieve high levels of network utilization for the controlledload service, a real-time service with very relaxed service guarantee. Most researchers studying MBAC algorithms(MBAC's) have focused primarily on the design of the Admission Control Equations (ACE's) using a variety of principled and ad hoc motivations. In this paper, we prove theoretically that the ACE's, even though derived and motivated in quite different ways, are equivalent by tuning the adjustable parameters of MBAC's. We also use simulations to confirm our work. The simulation results show that MBAC's may have the same utilization for a given packet loss rate through tuning the relevant parameters.

  17. A LP-RR Principle-Based Admission Control for a Mobile Network

    OpenAIRE

    Kumar, Vijay BP; Venkataram, Pallapa

    2002-01-01

    In mobile networks, the traffic fluctuation is unpredictable due to mobility and varying resource requirement of multimedia applications. Hence, it is essential to maintain traffic within the network capacity to provide service guarantees to running applications. This paper proposes an admission control (AC) scheme in a mobile cellular environment supporting hand-off and new application traffic. In the case of multimedia applications, each applications has its own distinct range of acceptable...

  18. Relation between call controll and resource control in B-ISDN

    NARCIS (Netherlands)

    Hou, Xinli; Niemegeers, Ignas G.

    1994-01-01

    The functional separation of call control and the control of network resources brings about the flexibility in provision of telecommunication services. This paper addresses the relation between call control and resource control in the B-ISDN signalling. The merits and drawbacks of two complementary

  19. Output Feedback Based Admissible Control of Switched Linear Singular Systems%切换线性奇异系统输出反馈容许控制

    Institute of Scientific and Technical Information of China (English)

    孟斌; 张纪峰

    2006-01-01

    The admissibility analysis and robust admissible control problem of the uncertain discretetime switched linear singular (SLS) systems for arbitrary switching laws are investigated. Based on linear matrix inequalities, some sufficient conditions are given for: A) the existence of generalized common Lyapunov solution and the admissibility of the SLS systems for arbitrary switching laws,B) the existence of static output feedback control laws ensuring the admissibility of the closed-loop SLS systems for arbitrary switching laws and norm-bounded uncertainties.

  20. Singular formalism and admissible control of spacecraft with rotating flexible solar array

    Directory of Open Access Journals (Sweden)

    Lu Dongning

    2014-02-01

    Full Text Available This paper is concerned with the attitude control of a three-axis-stabilized spacecraft which consists of a central rigid body and a flexible sun-tracking solar array driven by a solar array drive assembly. Based on the linearization of the dynamics of the spacecraft and the modal identities about the flexible and rigid coupling matrices, the spacecraft attitude dynamics is reduced to a formally singular system with periodically varying parameters, which is quite different from a spacecraft with fixed appendages. In the framework of the singular control theory, the regularity and impulse-freeness of the singular system is analyzed and then admissible attitude controllers are designed by Lyapunov’s method. To improve the robustness against system uncertainties, an H∞ optimal control is designed by optimizing the H∞ norm of the system transfer function matrix. Comparative numerical experiments are performed to verify the theoretical results.

  1. Mail Merge and Call Batching of Photos by Using Word in Making Admission Notices%利用Word邮件合并批量调用照片制作录取通知书

    Institute of Scientific and Technical Information of China (English)

    甘胜界

    2013-01-01

    By combining with the practice of our institute’s admission of students,the article explains how to use the mail merge and call batching of photos that the Word provides to achieve mass production of Admission Notices, and expounds the details that should be paid attention to in the process of combining electronic documents and calling photos.%本文结合我院的招生录取实际情况,阐述了如何利用Word本身提供的邮件合并功能及调用照片来实现批量生成录取通知书的具体过程,并针对在合并电子文档和调用照片的过程中需要注意和强调的细节问题,做了详细的说明。

  2. A Priority and SDB based Admission Control in IEEE 802.16 Systems

    Directory of Open Access Journals (Sweden)

    Xiu-ying Sun

    2010-09-01

    Full Text Available In IEEE 802.16 systems, the algorithm of admission control (AC is very important in guaranteeing the Quality of Service (QoS and managing service flows. However, the IEEE 802.16 standards do not specify any related strategies or algorithms on AC. In order to improve the system performance and satisfy the QoS of stations to the max, we propose a new AC strategy, which includes a weighted blocking rate based priority strategy and a satisfaction-degree based bandwidth-borrowing strategy named SDB in this paper. The simulation results show that the proposed strategy improves the overall performance of system in terms of weighted blocking rate. Furthermore, our strategy enhances the QoS in comparison with the strategy adopting conventional bandwidth-borrowing algorithm.

  3. An Interference-Aware Admission Control Design for Wireless Mesh Networks

    Directory of Open Access Journals (Sweden)

    Manikantan Shila Devu

    2010-01-01

    Full Text Available In this paper, we present IAC, an interference aware admission control algorithm for use in wireless mesh networks. The core concept of IAC is to use a low overhead dual threshold based approach to share the bandwidth information with its neighbors in the interfering range. As a result, IAC guarantees that the shared wireless bandwidth is not overutilized and the quality of all existing flows are preserved. Moreover, IAC takes into account the intraflow interference effect to estimate the bandwidth consumption of the flow in a multihop path. We have further proposed two approaches of bandwidth allocation, FCFS and MCU, and demonstrated that proper tuning of thresholds can lead to high performance of both schemes. Simulation results illustrate that IAC effectively limits the overutilization of channel resources which in turn results in high throughput, low delay and low packet loss rate for all admitted flows.

  4. Admission Control of Integrated Voice and Data CDMA/TDD System Considering Asymmetric Traffic and Power Limit

    Institute of Scientific and Technical Information of China (English)

    CAOYanbo; ZHOUBin; LIChengshu

    2004-01-01

    In this paper, we research an admission control scheme of integrated voice and data CDMA/TDD (Code division multiple access/Time division duplex) system considering asymmetric traffic and power limit. A new user can access the system only if the outage probabilities it experiences on the uplink and downlink time slots are below a threshold value. Based on the power limit the results show the voice and data blocking probabilities under different cell coverage~ arrival rates and various uplink/downlink time slot allocation patterns. Furthermore, multicode and multislot schemes are also evaluated under the presented admission control scheme.

  5. An asymptotic analysis of the so called intelligent PID controller

    OpenAIRE

    Praly, Laurent

    2010-01-01

    This note takes its origin from reading a paper by M. Fliess and C. Join, whose latest version is entitled Model-free control and intelligent PID controllers: towards a possible trivialization of nonlinear control? that can be obtained at http://arxiv.org/abs/0904.0322 Unfortunately in that paper, the authors write that . . . it is impossible of course to give a complete description of it and that the usual mathematical criteria for robust control become . . . irrelevant. In the following, to...

  6. Chalco Calls for End of More Control Measures on Aluminium

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    <正> To control the investment rush in electrolyticaluminium in recent years and ensure thehealthy development of China’s aluminium in-dustry, the State Council recently released aseries of adjustment policies and control meas-ures,which effectively prevented theinvestment rush and limited the aluminium out-put growth.

  7. Study on the Class-Based Admission Control Scheme for DiffServ in MPLS Networks

    Institute of Scientific and Technical Information of China (English)

    李震宇; 张中兆

    2003-01-01

    Differentiated services (DiffServ) and MPLS are two major building blocks for providing multi-class services over IP networks. In order to respond to the need for relatively simple, coarse methods of providing different levels of service for Internet traffic, to support various types of applications and specific business requirements, the MPLS network infrastructure and the DiffServ traffic model will work together. Meanwhile, in today's environment of multiple service networks, it is necessary for the node in the networks to perform the control mechanism to guarantee various QoS. In this paper, we propose a class-based admission control scheme that is suitable for DiffServ in MPLS networks. This scheme can achieve twofold objects: reliable QoS provisioning and high resource utilization. We evaluate the proposed scheme by numerical analysis of its performance in terms of throughput, delay, and reject probability. By performing simulation, we can ensure that the proposed scheme can work efficiently to provide strict QoS guarantees.

  8. A BATCH ARRIVAL RETRIAL QUEUE WITH STARTING FAILURES, FEEDBACK AND ADMISSION CONTROL

    Institute of Scientific and Technical Information of China (English)

    Jinting WANG; Peng-Feng ZHOU

    2010-01-01

    This paper is concerned with the analysis of a feedback M[X]/G/1 retrial queue with starting failures and general retrial times.In a batch,each individual customer is subject to a control admission policy upon arrival.If the server is idle,one of the customers admitted to the system may start its service and the rest joins the retrial group,whereas all the admitted customers go to the retrial group when the server is unavailable upon arrival.An arriving customer(primary or retrial)must turn-on the server,which takes negligible time.If the server is started successfully(with a certain probability),the customer gets service immediately.Otherwise,the repair for the server commences immediately and the customer must leave for the orbit and make a retrial at a later time.It is assumed that the customers who find the server unavailable are queued in the orbit in accordance with an FCFS discipline and only the customer at the head of the queue is allowed for access to the server.The Markov chain underlying the considered queueing system is studied and the necessary and sufficient condition for the system to be stable is presented.Explicit formulae for the stationary distribution and some performance measures of the system in steady-state are obtained.Finally,some numerical examples are presented to illustrate the influence of the parameters on several performance characteristics.

  9. Performance Analysis and Optimization of an Adaptive Admission Control Scheme in Cognitive Radio Networks

    Directory of Open Access Journals (Sweden)

    Shunfu Jin

    2013-01-01

    Full Text Available In cognitive radio networks, if all the secondary user (SU packets join the system without any restrictions, the average latency of the SU packets will be greater, especially when the traffic load of the system is higher. For this, we propose an adaptive admission control scheme with a system access probability for the SU packets in this paper. We suppose the system access probability is inversely proportional to the total number of packets in the system and introduce an Adaptive Factor to adjust the system access probability. Accordingly, we build a discrete-time preemptive queueing model with adjustable joining rate. In order to obtain the steady-state distribution of the queueing model exactly, we construct a two-dimensional Markov chain. Moreover, we derive the formulas for the blocking rate, the throughput, and the average latency of the SU packets. Afterwards, we provide numerical results to investigate the influence of the Adaptive Factor on different performance measures. We also give the individually optimal strategy and the socially optimal strategy from the standpoints of the SU packets. Finally, we provide a pricing mechanism to coordinate the two optimal strategies.

  10. Cervical cancer control in Latin America: A call to action.

    Science.gov (United States)

    Bychkovsky, Brittany L; Ferreyra, Mayra E; Strasser-Weippl, Kathrin; Herold, Christina I; de Lima Lopes, Gilberto; Dizon, Don S; Schmeler, Kathleen M; Del Carmen, Marcela; Randall, Tom C; Nogueira-Rodrigues, Angelica; de Carvalho Calabrich, Aknar Freire; St Louis, Jessica; Vail, Caroline M; Goss, Paul E

    2016-02-15

    Cervical cancer (CC) is second most common cause of cancer in Latin America and is a leading cause of cancer mortality among women. In 2015, an estimated 74,488 women will be diagnosed with CC in Latin America and 31,303 will die of the disease. CC mortality is projected to increase by 45% by 2030 despite human papillomavirus (HPV) vaccination and screening efforts. In this setting, the goal was of the current study was to examine CC control efforts in Latin America and identify deficiencies in these efforts that could be addressed to reduce CC incidence and mortality. The authors found that HPV vaccination has been introduced in the majority of Latin American countries, and there is now a need to monitor the success (or shortcomings) of these programs and to ensure that these programs are sustainable. This topic was also reviewed in light of emerging data demonstrating that visual inspection with acetic acid and HPV DNA testing without Papanicolaou tests have efficacy from a screening perspective and are good alternatives to cytology-based screening programs. Overall, there is a need to build capacity for CC control in Latin America and the best strategy will depend on the country/region and must be tailored to meet the needs of the population as well as available resources.

  11. Exponential Admissibility and Dynamic Output Feedback Control of Switched Singular Systems with Interval Time-Varying Delay

    Directory of Open Access Journals (Sweden)

    Jinxing Lin

    2010-01-01

    Full Text Available This paper is concerned with the problems of exponential admissibility and dynamic output feedback (DOF control for a class of continuous-time switched singular systems with interval time-varying delay. A full-order, dynamic, synchronously switched DOF controller is considered. First, by using the average dwell time approach, a delay-range-dependent exponential admissibility criterion for the unforced switched singular time-delay system is established in terms of linear matrix inequalities (LMIs. Then, based on this criterion, a sufficient condition on the existence of a desired DOF controller, which guarantees that the closed-loop system is regular, impulse free and exponentially stable, is proposed by employing the LMI technique. Finally, some illustrative examples are given to show the effectiveness of the proposed approach.

  12. Further Studies on Equivalence of Structure and Its Relevance to Performance of Measurement-Based Admission Control Algorithms

    Institute of Scientific and Technical Information of China (English)

    GUIZhibo; ZHOULichao

    2005-01-01

    The advantage of Measurement-based admission control algorithms (MBACs) is that they are able to improve network utilization for the controlled-load service. Most researchers have focused primarily on designs of the Admission control equations (ACEs) of MBACs using a variety of principled and ad hoc motivations. In this paper, six typical MBACs, namely MS, HB, TP, TO, TE and MC algorithms, are discussed. First, we have proven analytically that the ACEs of TE and MC have the same structural form as the ACEs of the other four MBACs above. Second, through formal analysis we have theoretically proven that the ACEs of TE and MC, even though they are derived and motivated in quite different ways, are equivalent to the other four MBACs by tuning the adjustable parameters of MBACs. Finally, we have used also simulations to confirm our work.

  13. A NEW DYNAMIC QUOTA-BASED ADMISSION CONTROL WITH SUB NEGOTIATION FOR SOFTSWITCH-BASED CLUSTERED MEDIA SERVER

    Institute of Scientific and Technical Information of China (English)

    Wu Naixing; Liao Jianxin; Zhu Xiaomin

    2006-01-01

    Based on the demand of the admission control of softswitch-based clustered media server, this paper proposed a new dynamic quota-based admission control algorithm that has a sub-negotiation process. The strongpoint of quota-based algorithm had been inherited in the algorithm and at the same time some new ideas had also been introduced into it. Simulations of the algorithm had been conducted on the Petri net model and the results show that this algorithm has excellent performance. In order to find the optimal resource quota setting in real time, the paper proposed two approximation analysis methods. It can be seen from analysis results that these two methods can be used to get sub-optimal quota values quickly and effectively. These two approximation analysis methods will play important roles in implementation of the algorithm in system.

  14. Patient-controlled hospital admission for patients with severe mental disorders: study protocol for a nationwide prospective multicentre study

    Science.gov (United States)

    Thomsen, Christoffer Torgaard; Benros, Michael Eriksen; Hastrup, Lene Halling; Andersen, Per Kragh; Giacco, Domenico; Nordentoft, Merete

    2016-01-01

    Introduction Patient-controlled hospital admission for individuals with severe mental disorders is a novel approach in mental healthcare. Patients can admit themselves to a hospital unit for a short stay without being assessed by a psychiatrist or contacting the emergency department. Previous studies assessing the outcomes of patient-controlled hospital admission found trends towards reduction in the use of coercive measures and length of hospital stay; however, these studies have methodological shortcomings and small sample sizes. Larger studies are needed to estimate the effect of patient-controlled hospital admission on the use of coercion and of healthcare services. Design and methods We aim to recruit at least 315 patients who are offered a contract for patient-controlled hospital admissions in eight different hospitals in Denmark. Patients will be followed-up for at least 1 year to compare the use of coercive measures and of healthcare services, the use of medications and suicidal behaviour. Descriptive statistics will be used to investigate hospitalisations, global assessment of functioning (GAF) and patient satisfaction with treatment. To minimise selection bias, we will match individuals using patient-controlled hospital admission and controls with a 1:5 ratio via a propensity score based on the following factors: sex, age group, primary diagnosis, substance abuse as secondary diagnosis, coercion, number of psychiatric bed days, psychiatric history, urbanity and suicidal behaviour. Additionally, a historical control study will be undertaken in which patients serve as their own control group prior to index date. Ethics and dissemination The study has been approved by The Danish Health and Medicines Authority (j.nr.: 3-3013-934/1/) and by The Danish Data Protection Agency (j.nr.: 2012-58-0004). The study was categorised as a register study by The Danish Health Research Ethics Committee and therefore no further approval was needed (j.nr.: H-2-2014-FSP70

  15. Effects of a major earthquake on calls to regional poison control centers.

    OpenAIRE

    Nathan, A. R.; Olson, K R; Everson, G. W.; Kearney, T E; Blanc, P. D.

    1992-01-01

    We retrospectively evaluated the effect of the Loma Prieta earthquake on calls to 2 designated regional poison control centers (San Francisco and Santa Clara) in the area. In the immediate 12 hours after the earthquake, there was an initial drop (31%) in call volume, related to telephone system overload and other technical problems. Calls from Bay Area counties outside of San Francisco and Santa Clara decreased more dramatically than those from within the host counties where the poison contro...

  16. Admissible and Restrained Revision

    CERN Document Server

    Booth, R; 10.1613/jair.1874

    2011-01-01

    As partial justification of their framework for iterated belief revision Darwiche and Pearl convincingly argued against Boutiliers natural revision and provided a prototypical revision operator that fits into their scheme. We show that the Darwiche-Pearl arguments lead naturally to the acceptance of a smaller class of operators which we refer to as admissible. Admissible revision ensures that the penultimate input is not ignored completely, thereby eliminating natural revision, but includes the Darwiche-Pearl operator, Nayaks lexicographic revision operator, and a newly introduced operator called restrained revision. We demonstrate that restrained revision is the most conservative of admissible revision operators, effecting as few changes as possible, while lexicographic revision is the least conservative, and point out that restrained revision can also be viewed as a composite operator, consisting of natural revision preceded by an application of a "backwards revision" operator previously studied by Papini. ...

  17. Shift changes, updates, and the on-call architecture in space shuttle mission control

    Science.gov (United States)

    Patterson, E. S.; Woods, D. D.

    2001-01-01

    In domains such as nuclear power, industrial process control, and space shuttle mission control, there is increased interest in reducing personnel during nominal operations. An essential element in maintaining safe operations in high risk environments with this 'on-call' organizational architecture is to understand how to bring called-in practitioners up to speed quickly during escalating situations. Targeted field observations were conducted to investigate what it means to update a supervisory controller on the status of a continuous, anomaly-driven process in a complex, distributed environment. Sixteen shift changes, or handovers, at the NASA Johnson Space Center were observed during the STS-76 Space Shuttle mission. The findings from this observational study highlight the importance of prior knowledge in the updates and demonstrate how missing updates can leave flight controllers vulnerable to being unprepared. Implications for mitigating risk in the transition to 'on-call' architectures are discussed.

  18. Induction by Coinduction and Control Operators in Call-by-Name

    Directory of Open Access Journals (Sweden)

    Yoshihiko Kakutani

    2013-09-01

    Full Text Available This paper studies emulation of induction by coinduction in a call-by-name language with control operators. Since it is known that call-by-name programming languages with control operators cannot have general initial algebras, interaction of induction and control operators is often restricted to effect-free functions. We show that some class of such restricted inductive types can be derived from full coinductive types by the power of control operators. As a typical example of our results, the type of natural numbers is represented by the type of streams. The underlying idea is a counterpart of the fact that some coinductive types can be expressed by inductive types in call-by-name pure language without side-effects.

  19. A Survey of Primary Care Offices: Triage of Poisoning Calls without a Poison Control Center

    OpenAIRE

    Travis Austin; Brooks, Daniel E.; Sharyn Welch; Frank LoVecchio

    2012-01-01

    Poison control centers hold great potential for saving health care resources particularly by preventing unnecessary medical utilization. We developed a four-question survey with three poisoning-related scenarios, based on common calls to our poison center, and one question regarding after-hours calls. We identified primary care provider offices in our poison center's region from an internet search. We contacted these offices via telephone and asked to speak to an office manager or someone res...

  20. A Cross-Entropy-Based Admission Control Optimization Approach for Heterogeneous Virtual Machine Placement in Public Clouds

    Directory of Open Access Journals (Sweden)

    Li Pan

    2016-03-01

    Full Text Available Virtualization technologies make it possible for cloud providers to consolidate multiple IaaS provisions into a single server in the form of virtual machines (VMs. Additionally, in order to fulfill the divergent service requirements from multiple users, a cloud provider needs to offer several types of VM instances, which are associated with varying configurations and performance, as well as different prices. In such a heterogeneous virtual machine placement process, one significant problem faced by a cloud provider is how to optimally accept and place multiple VM service requests into its cloud data centers to achieve revenue maximization. To address this issue, in this paper, we first formulate such a revenue maximization problem during VM admission control as a multiple-dimensional knapsack problem, which is known to be NP-hard to solve. Then, we propose to use a cross-entropy-based optimization approach to address this revenue maximization problem, by obtaining a near-optimal eligible set for the provider to accept into its data centers, from the waiting VM service requests in the system. Finally, through extensive experiments and measurements in a simulated environment with the settings of VM instance classes derived from real-world cloud systems, we show that our proposed cross-entropy-based admission control optimization algorithm is efficient and effective in maximizing cloud providers’ revenue in a public cloud computing environment.

  1. Relationship between glycated hemoglobin, Intensive Care Unit admission blood sugar and glucose control with ICU mortality in critically ill patients

    Science.gov (United States)

    Mahmoodpoor, Ata; Hamishehkar, Hadi; Shadvar, Kamran; Beigmohammadi, Mohammadtaghi; Iranpour, Afshin; Sanaie, Sarvin

    2016-01-01

    Background and Aims: The association between hyperglycemia and mortality is believed to be influenced by the presence of diabetes mellitus (DM). In this study, we evaluated the effect of preexisting hyperglycemia on the association between acute blood glucose management and mortality in critically ill patients. The primary objective of the study was the relationship between HbA1c and mortality in critically ill patients. Secondary objectives of the study were relationship between Intensive Care Unit (ICU) admission blood glucose and glucose control during ICU stay with mortality in critically ill patients. Materials and Methods: Five hundred patients admitted to two ICUs were enrolled. Blood sugar and hemoglobin A1c (HbA1c) concentrations on ICU admission were measured. Age, sex, history of DM, comorbidities, Acute Physiology and Chronic Health Evaluation II score, sequential organ failure assessment score, hypoglycemic episodes, drug history, mortality, and development of acute kidney injury and liver failure were noted for all patients. Results: Without considering the history of diabetes, nonsurvivors had significantly higher HbA1c values compared to survivors (7.25 ± 1.87 vs. 6.05 ± 1.22, respectively, P < 0.001). Blood glucose levels in ICU admission showed a significant correlation with risk of death (P < 0.006, confidence interval [CI]: 1.004–1.02, relative risk [RR]: 1.01). Logistic regression analysis revealed that HbA1c increased the risk of death; with each increase in HbA1c level, the risk of death doubled. However, this relationship was not statistically significant (P: 0.161, CI: 0.933–1.58, RR: 1.2). Conclusions: Acute hyperglycemia significantly affects mortality in the critically ill patients; this relation is also influenced by chronic hyperglycemia. PMID:27076705

  2. Relationship between glycated hemoglobin, Intensive Care Unit admission blood sugar and glucose control with ICU mortality in critically ill patients

    Directory of Open Access Journals (Sweden)

    Ata Mahmoodpoor

    2016-01-01

    Full Text Available Background and Aims: The association between hyperglycemia and mortality is believed to be influenced by the presence of diabetes mellitus (DM. In this study, we evaluated the effect of preexisting hyperglycemia on the association between acute blood glucose management and mortality in critically ill patients. The primary objective of the study was the relationship between HbA1c and mortality in critically ill patients. Secondary objectives of the study were relationship between Intensive Care Unit (ICU admission blood glucose and glucose control during ICU stay with mortality in critically ill patients. Materials and Methods: Five hundred patients admitted to two ICUs were enrolled. Blood sugar and hemoglobin A1c (HbA1c concentrations on ICU admission were measured. Age, sex, history of DM, comorbidities, Acute Physiology and Chronic Health Evaluation II score, sequential organ failure assessment score, hypoglycemic episodes, drug history, mortality, and development of acute kidney injury and liver failure were noted for all patients. Results: Without considering the history of diabetes, nonsurvivors had significantly higher HbA1c values compared to survivors (7.25 ± 1.87 vs. 6.05 ± 1.22, respectively, P < 0.001. Blood glucose levels in ICU admission showed a significant correlation with risk of death (P < 0.006, confidence interval [CI]: 1.004–1.02, relative risk [RR]: 1.01. Logistic regression analysis revealed that HbA1c increased the risk of death; with each increase in HbA1c level, the risk of death doubled. However, this relationship was not statistically significant (P: 0.161, CI: 0.933–1.58, RR: 1.2. Conclusions: Acute hyperglycemia significantly affects mortality in the critically ill patients; this relation is also influenced by chronic hyperglycemia.

  3. Cost and effects of different admission screening strategies to control the spread of methicillin-resistant Staphylococcus aureus.

    Directory of Open Access Journals (Sweden)

    Tanya Gurieva

    Full Text Available Nosocomial infection rates due to antibiotic-resistant bacteriae, e.g., methicillin-resistant Staphylococcus aureus (MRSA remain high in most countries. Screening for MRSA carriage followed by barrier precautions for documented carriers (so-called screen and isolate (S&I has been successful in some, but not all settings. Moreover, different strategies have been proposed, but comparative studies determining their relative effects and costs are not available. We, therefore, used a mathematical model to evaluate the effect and costs of different S&I strategies and to identify the critical parameters for this outcome. The dynamic stochastic simulation model consists of 3 hospitals with general wards and intensive care units (ICUs and incorporates readmission of carriers of MRSA. Patient flow between ICUs and wards was based on real observations. Baseline prevalence of MRSA was set at 20% in ICUs and hospital-wide at 5%; ranges of costs and infection rates were based on published data. Four S&I strategies were compared to a do-nothing scenario: S&I of previously documented carriers ("flagged" patients; S&I of flagged patients and ICU admissions; S&I of flagged and group of "frequent" patients; S&I of all hospital admissions (universal screening. Evaluated levels of efficacy of S&I were 10%, 25%, 50% and 100%. Our model predicts that S&I of flagged and S&I of flagged and ICU patients are the most cost-saving strategies with fastest return of investment. For low isolation efficacy universal screening and S&I of flagged and "frequent" patients may never become cost-saving. Universal screening is predicted to prevent hardly more infections than S&I of flagged and "frequent" patients, albeit at higher costs. Whether an intervention becomes cost-saving within 10 years critically depends on costs per infection in ICU, costs of screening and isolation efficacy.

  4. Effects of a major earthquake on calls to regional poison control centers.

    Science.gov (United States)

    Nathan, A R; Olson, K R; Everson, G W; Kearney, T E; Blanc, P D

    1992-03-01

    We retrospectively evaluated the effect of the Loma Prieta earthquake on calls to 2 designated regional poison control centers (San Francisco and Santa Clara) in the area. In the immediate 12 hours after the earthquake, there was an initial drop (31%) in call volume, related to telephone system overload and other technical problems. Calls from Bay Area counties outside of San Francisco and Santa Clara decreased more dramatically than those from within the host counties where the poison control centers are located. In the next 2 days, each poison control center then handled a 27% increase in call volume. Requests for information regarding safety of water supplies and other environmental concerns were significantly increased. The number of cases of actual poisoning exposure decreased, particularly poison and drug ingestions in children. Most calls directly related to the earthquake included spills and leaks of hazardous materials and questions about water and food safety. Regional poison control centers play an essential role in the emergency medical response to major disasters and are critically dependent on an operational telephone system. PMID:1595244

  5. Deterministic Online Call Control in Cellular Networks and Triangle-Free Cellular Networks

    CERN Document Server

    Chan, Joseph Wun-Tat; Han, Xin; Lam, Ka-Cheong; Ting, Hing-Fung; Zhang, Yong

    2010-01-01

    Wireless Communication Networks based on Frequency Division Multiplexing (FDM in short) plays an important role in the field of communications, in which each request can be satisfied by assigning a frequency. To avoid interference, each assigned frequency must be different to the neighboring assigned frequencies. Since frequency is a scarce resource, the main problem in wireless networks is how to fully utilize the given bandwidth of frequencies. In this paper, we consider the online call control problem. Given a fixed bandwidth of frequencies and a sequence of communication requests arrive over time, each request must be either satisfied immediately after its arrival by assigning an available frequency, or rejected. The objective of call control problem is to maximize the number of accepted requests. We study the asymptotic performance of this problem, i.e., the number of requests in the sequence and the bandwidth of frequencies are very large. In this paper, we give a 7/3-competitive algorithm for call cont...

  6. Distributed Stable-Group Differentiated Admission Control Algorithm in Mobile Peer-to-Peer Media Streaming System

    Institute of Scientific and Technical Information of China (English)

    XUEGuangtao; SHIHua; YOUJinyuan; YAOWensheng

    2003-01-01

    Mobile peer-to-peer media streaming systems are expected to become as popular as the peer-to-peer file sharing systems. In this paper, we study two key problems arising from mobile peer-to-peer media streaming: the stability of interconnection between supplying peers and requesting peers in mobile peer-to-peer streaming system; and fast capacity amplification of the entire mobile peer-to-peer streaming system. We use the Stable group algorithm to characterize user mobility in mobile ad hoc networks. Based on the stable group, we then propose a distributed Stable-group differentiated admission control algorithm (SGDACp2p), which leads to fast amplifying the system's total streaming capacity using its self-growing. At last, the extensive simulation results are presented to compare between the SGDACp2p and traditional methods to prove the superiority of the algorithm.

  7. Association between birth order and emergency room visits and acute hospital admissions following pediatric vaccination: a self-controlled study.

    Directory of Open Access Journals (Sweden)

    Steven Hawken

    Full Text Available OBJECTIVE: We investigated the association between a child's birth order and emergency room (ER visits and hospital admissions following 2-,4-,6- and 12-month pediatric vaccinations. METHODS: We included all children born in Ontario between April 1(st, 2006 and March 31(st, 2009 who received a qualifying vaccination. We identified vaccinations, ER visits and admissions using health administrative data housed at the Institute for Clinical Evaluative Sciences. We used the self-controlled case series design to compare the relative incidence (RI of events among 1(st-born and later-born children using relative incidence ratios (RIR. RESULTS: For the 2-month vaccination, the RIR for 1(st-borns versus later-born children was 1.37 (95% CI: 1.19-1.57, which translates to 112 additional events/100,000 vaccinated. For the 4-month vaccination, the RIR for 1(st-borns vs. later-borns was 1.70 (95% CI: 1.45-1.99, representing 157 additional events/100,000 vaccinated. At 6 months, the RIR for 1(st vs. later-borns was 1.27 (95% CI: 1.09-1.48, or 77 excess events/100,000 vaccinated. At the 12-month vaccination, the RIR was 1.11 (95% CI: 1.02-1.21, or 249 excess events/100,000 vaccinated. CONCLUSIONS: Birth order is associated with increased incidence of ER visits and hospitalizations following vaccination in infancy. 1(st-born children had significantly higher relative incidence of events compared to later-born children.

  8. A call-by-value lambda-calculus with lists and control

    Directory of Open Access Journals (Sweden)

    Robbert Krebbers

    2012-10-01

    Full Text Available Calculi with control operators have been studied to reason about control in programming languages and to interpret the computational content of classical proofs. To make these calculi into a real programming language, one should also include data types. As a step into that direction, this paper defines a simply typed call-by-value lambda calculus with the control operators catch and throw, a data type of lists, and an operator for primitive recursion (a la Goedel's T. We prove that our system satisfies subject reduction, progress, confluence for untyped terms, and strong normalization for well-typed terms.

  9. A Survey of Primary Care Offices: Triage of Poisoning Calls without a Poison Control Center

    Directory of Open Access Journals (Sweden)

    Travis Austin

    2012-01-01

    Full Text Available Poison control centers hold great potential for saving health care resources particularly by preventing unnecessary medical utilization. We developed a four-question survey with three poisoning-related scenarios, based on common calls to our poison center, and one question regarding after-hours calls. We identified primary care provider offices in our poison center's region from an internet search. We contacted these offices via telephone and asked to speak to an office manager or someone responsible for triaging patient phone queries. Using a scripted form, trained investigators questioned 100 consecutive primary care provider offices on how they would handle these poisoning-related calls if there was no poison center to refer their patients to. Results of our survey suggest that 82.5% of poisoning-related calls to primary care offices would be referred to 911 or an emergency department if there was no poison center. These results further support the role that poison centers play in patient care and health care utilization.

  10. Enhanced signaling scheme with admission control in the hybrid optical wireless (HOW) networks

    DEFF Research Database (Denmark)

    Yan, Ying; Yu, Hao; Wessing, Henrik;

    2009-01-01

    The hybrid optical wireless (HOW) network has been viewed as a promising solution to meet the increasing user bandwidth and mobility demands. Due to the basic differences in the optical and wireless technologies, a challenging problem lies in the Media Access Control (MAC) protocol design so that...

  11. Airport Casualties: Non-Admission and Return Risks at Times of Internalized/Externalized Border Controls

    Directory of Open Access Journals (Sweden)

    Maybritt Jill Alpes

    2015-09-01

    Full Text Available This article analyzes what can happen to forced returnees upon arrival in their country of nationality. Subjective configurations of state agents in the Global South have created return risks, which in turn transform subjectivities of post-colonial citizens. The article contributes to this Special Issue by tracing repercussions of the externalization and internalization of border controls. In the case of Cameroon, these connections have resulted in the criminalization of emigration. Aspiring migrants are prosecuted if their departure projects fail to respect the entry requirements of countries in the Global North. The article is based on research conducted in Douala, Cameroon, in the form of discussions with control agents at the international airport, investigations at a prison, a review of related case law, police registers and interviews with Cameroonians returnees (November 2013–January 2014. Border controls and connected anti-fraud programs suppress family-based forms of solidarity and allow only for subjectivities rooted in state-managed forms of national identity. The article illustrates how efforts to combat fraud fuel corruption in returnees’ social networks, whereby, instead of receiving remittances, families in emigration countries have to mobilize financial resources in order to liberate returnees from police stations or prison complexes. Migration related detention of nationals in the Global South highlights the growing significance of exit controls in migration management.

  12. Admissibility of Linear Systems in Banach Spaces

    Institute of Scientific and Technical Information of China (English)

    GUO Fa-ming

    2005-01-01

    In this paper, infinite-time p-admissibility of unbounded operators is introduced and the Co-semigroup characterization of the infinite-time p-admissibility of unbounded observation operators is given. Moreover, the analogous result for the infinite-time p-admissibility of unbounded control operators is presented.

  13. Medical-Grade Channel Access and Admission Control in 802.11e EDCA for Healthcare Applications.

    Science.gov (United States)

    Son, Sunghwa; Park, Kyung-Joon; Park, Eun-Chan

    2016-01-01

    In this paper, we deal with the problem of assuring medical-grade quality of service (QoS) for real-time medical applications in wireless healthcare systems based on IEEE 802.11e. Firstly, we show that the differentiated channel access of IEEE 802.11e cannot effectively assure medical-grade QoS because of priority inversion. To resolve this problem, we propose an efficient channel access algorithm. The proposed algorithm adjusts arbitrary inter-frame space (AIFS) in the IEEE 802.11e protocol depending on the QoS measurement of medical traffic, to provide differentiated near-absolute priority for medical traffic. In addition, based on rigorous capacity analysis, we propose an admission control scheme that can avoid performance degradation due to network overload. Via extensive simulations, we show that the proposed mechanism strictly assures the medical-grade QoS and improves the throughput of low-priority traffic by more than several times compared to the conventional IEEE 802.11e. PMID:27490666

  14. Effectiveness of telemonitoring integrated into existing clinical services on hospital admission for exacerbation of chronic obstructive pulmonary disease: researcher blind, multicentre, randomised controlled trial

    OpenAIRE

    Pinnock, Hilary; Hanley, Janet; McCloughan, Lucy; Todd, Allison; Krishan, Ashma; Lewis, Stephanie; Stoddart, Andrew; van der Pol, Marjon; MacNee, William; Sheikh, Aziz; Pagliari, Claudia; McKinstry, Brian

    2013-01-01

    Objective: To test the effectiveness of telemonitoring integrated into existing clinical services such that intervention and control groups have access to the same clinical care. Design: Researcher blind, multicentre, randomised controlled trial. Setting: UK primary care (Lothian, Scotland). Participants: Adults with at least one admission for chronic obstructive pulmonary disease (COPD) in the year before randomisation. We excluded people who had other significant lung disease, who were unab...

  15. Effectiveness of telemonitoring integrated into existing clinical services on hospital admission for exacerbation of chronic obstructive pulmonary disease: researcher blind, multicentre, randomised controlled trial

    OpenAIRE

    Pinnock, Hilary; Hanley, Janet; McCloughan, Lucy; Todd, Allison; Krishan, Ashma; Lewis, Stephanie; Stoddart, Andrew; van der Pol, Marjon; MacNee, William; Sheikh, Aziz; Pagliari, Claudia; McKinstry, Brian

    2013-01-01

    Objective To test the effectiveness of telemonitoring integrated into existing clinical services such that intervention and control groups have access to the same clinical care. Design Researcher blind, multicentre, randomised controlled trial. Setting UK primary care (Lothian, Scotland). Participants Adults with at least one admission for chronic obstructive pulmonary disease (COPD) in the year before randomisation. We excluded people who had other significant lung disease, who were unable t...

  16. The effect of health-facility admission and skilled birth attendant coverage on maternal survival in India: a case-control analysis.

    Directory of Open Access Journals (Sweden)

    Ann L Montgomery

    Full Text Available BACKGROUND: Research in areas of low skilled attendant coverage found that maternal mortality is paradoxically higher in women who seek obstetric care. We estimated the effect of health-facility admission on maternal survival, and how this effect varies with skilled attendant coverage across India. METHODS/FINDINGS: Using unmatched population-based case-control analysis of national datasets, we compared the effect of health-facility admission at any time (antenatal, intrapartum, postpartum on maternal deaths (cases to women reporting pregnancies (controls. Probability of maternal death decreased with increasing skilled attendant coverage, among both women who were and were not admitted to a health-facility, however, the risk of death among women who were admitted was higher (at 50% coverage, OR = 2.32, 95% confidence interval 1.85-2.92 than among those women who were not; while at higher levels of coverage, the effect of health-facility admission was attenuated. In a secondary analysis, the probability of maternal death decreased with increasing coverage among both women admitted for delivery or delivered at home but there was no effect of admission for delivery on mortality risk (50% coverage, OR = 1.0, 0.80-1.25, suggesting that poor quality of obstetric care may have attenuated the benefits of facility-based care. Subpopulation analysis of obstetric hemorrhage cases and report of 'excessive bleeding' in controls showed that the probability of maternal death decreased with increasing skilled attendant coverage; but the effect of health-facility admission was attenuated (at 50% coverage, OR = 1.47, 0.95-1.79, suggesting that some of the effect in the main model can be explained by women arriving at facility with complications underway. Finally, highest risk associated with health-facility admission was clustered in women with education ≤ 8 years. CONCLUSIONS: The effect of health-facility admission did vary by skilled attendant coverage, and

  17. Why in 2016 are patients with hypertension not 100% controlled? A call to action.

    Science.gov (United States)

    Redon, Josep; Mourad, Jean-Jacques; Schmieder, Roland E; Volpe, Massimo; Weiss, Thomas W

    2016-08-01

    The objective is to consider the problem of high blood pressure (BP), a leading global risk factor, associated with substantial morbidity and mortality. Despite the availability of treatment guidelines and a wide range of therapies, BP control is suboptimal in many countries. Recent data indicate that only around 40% of patients manage to achieve an adequate level of BP control. A group of international experts in the field of hypertension met in 2008 to consider this problem. The resulting white paper delivered an urgent call to action and identified six key issues for improving BP control. In 2015, a working group of investigators spontaneously undertook an action with the primary aim of considering the current hypertension management situation in Europe, to discuss whether the situation had changed since 2008 and to determine what can be learnt from the projects in other continents, such as the Canadian Hypertension Education Program, which has shown that higher levels of BP control can be achieved across a general population. The working group identified the main challenges affecting the improvement of BP control today and suggests five key actions: identify the BP treatment target of less than 140/90 mmHg for the majority of patients, simplify treatment strategies and encourage pill reduction, decrease therapeutic inertia, improve patient empowerment, and involve healthcare systems and reduce the prevailing focus on drug costs in many healthcare systems. Implementing key actions identified by the working group may help to improve achievement of better BP control across Europe. PMID:27270186

  18. Reclaiming the Educational Role of Chief Admission Officers.

    Science.gov (United States)

    McDonough, Patricia; Robertson, Larry

    1995-01-01

    Describes changes that have occurred in high schools, colleges, and the entrepreneurial admission sector. Relates the evolution of the admission officer's job since the early 1960s and the profession's rapid growth. Details the hybrid role of marketer and educator for chief admissions officers, and issues a call for professional standards. (RJM)

  19. Long-term exposure to air pollution and hospital admissions for ischemic stroke. A register-based case-control study using modelled NOx as exposure proxy

    OpenAIRE

    Oudin, Anna; Stroh, Emilie; Strömberg, Ulf; Jakobsson, Kristina; Björk, Jonas

    2009-01-01

    Background Long-term exposure to air pollution is a hypothesized risk factor for ischemic stroke. In a large case-control study with a complete study base, we investigated whether hospital admissions for ischemic stroke were associated with residential concentrations of outdoor NOx, as a proxy for exposure to air pollution, in the region of Scania, Southern Sweden. Methods We used a two-phase case-control study design, including as first-phase controls all individuals born between 1923 and 19...

  20. This weapon called peace: The doctrine and strategy of Soviet arms control and disarmament policy

    Energy Technology Data Exchange (ETDEWEB)

    Trifan, D.D.

    1989-01-01

    The strategy of Soviet arms-control and disarmament policy can be summarized in what we have termed the ratchet strategy of peaceful coexistence, in which a strategic advance is achieved through the tactics of multiple and indirect lines of approach, legitimized through invocation of peaceful coexistence, and made permanent and irreversible both by treaties and agreements and by the increasing military capability of the Soviet Union and her allies. This strategy is unchanged from World War II until today. Soviet strategic thought is based on the writings of V. I. Lenin; and both Lenin's strategic concepts and Soviet disarmament and arms-control strategy bear a striking resemblance to the precepts expressed by the 4th-century B.C. Chinese strategist Sun Tzu in the Art of War. This dissertation examines not only the strategic content of this policy, but the doctrinal components of Soviet disarmament and arms control strategy. The doctrinal principles must be derived through examination of: authoritative political and strategic writings, records of negotiations and negotiating positions, treaties and agreements, data concerning weapons systems, and the relationship of these to observed political and strategic developments during the period under examination. The doctrinal principles behind this strategy are: (1) the primary purpose of peaceful coexistence is the undermining of imperialism, (2) any means are permissible in the pursuit of peace strategy, and (3) the motive force for this strategy is Marxist-Leninist ideology, with the ultimate goal being the worldwide imposition of socialism in its Soviet variety. Shifts in Soviet policy are tactical instead of strategic in nature; and in keeping with the Soviet idea of the correlation of forces this strategy can be termed a time-fluid two-player zero-sum game. Consequently, Soviet arms-control and disarmament policy can be a weapon called peace.

  1. Do ‘Virtual Wards’ reduce rates of unplanned hospital admissions and at what cost? A research protocol using propensity matched controls

    Directory of Open Access Journals (Sweden)

    Geraint Hywel Lewis

    2011-07-01

    Full Text Available Background: This retrospective study will assess the extent to which multidisciplinary case management in the form of virtual wards (VWs leads to changes in the use of health care and social care by patients at high risk of future unplanned hospital admission. VWs use the staffing, systems and daily routines of a hospital ward to deliver coordinated care to patients in their own homes. Admission to a VW is offered to patients identified by a predictive risk model as being at high risk of unplanned hospital admission in the coming 12 months.Study design and data collection methods: We will compare the health care and social care use of VW patients to that of matched controls. Controls will be drawn from (a national, and (b local, individual-level pseudonymous routine data. The costs of setting up and running a VW will be determined from the perspectives of both health and social care organizations using a combination of administrative data, interviews and diaries.Methods of analysis: Using propensity score matching and prognostic matching, we will create matched comparator groups to estimate the effect size of virtual wards in reducing unplanned hospital admissions.Conclusions: This study will allow us to determine relative to matched comparator groups: whether VWs reduce the use of emergency hospital care; the impact, if any, of VWs on the uptake of primary care, community health services and council-funded social care; and the potential costs and savings of VWs from the perspectives of the national health service (NHS and local authorities.

  2. Do ‘Virtual Wards’ reduce rates of unplanned hospital admissions and at what cost? A research protocol using propensity matched controls

    Directory of Open Access Journals (Sweden)

    Geraint Hywel Lewis

    2011-07-01

    Full Text Available Background: This retrospective study will assess the extent to which multidisciplinary case management in the form of virtual wards (VWs leads to changes in the use of health care and social care by patients at high risk of future unplanned hospital admission. VWs use the staffing, systems and daily routines of a hospital ward to deliver coordinated care to patients in their own homes. Admission to a VW is offered to patients identified by a predictive risk model as being at high risk of unplanned hospital admission in the coming 12 months. Study design and data collection methods: We will compare the health care and social care use of VW patients to that of matched controls. Controls will be drawn from (a national, and (b local, individual-level pseudonymous routine data. The costs of setting up and running a VW will be determined from the perspectives of both health and social care organizations using a combination of administrative data, interviews and diaries. Methods of analysis: Using propensity score matching and prognostic matching, we will create matched comparator groups to estimate the effect size of virtual wards in reducing unplanned hospital admissions. Conclusions: This study will allow us to determine relative to matched comparator groups: whether VWs reduce the use of emergency hospital care; the impact, if any, of VWs on the uptake of primary care, community health services and council-funded social care; and the potential costs and savings of VWs from the perspectives of the national health service (NHS and local authorities.

  3. A call for policy guidance on psychometric testing in doping control in sport.

    Science.gov (United States)

    Petróczi, Andrea; Backhouse, Susan H; Barkoukis, Vassilis; Brand, Ralf; Elbe, Anne-Marie; Lazuras, Lambros; Lucidi, Fabio

    2015-11-01

    One of the fundamental challenges in anti-doping is identifying athletes who use, or are at risk of using, prohibited performance enhancing substances. The growing trend to employ a forensic approach to doping control aims to integrate information from social sciences (e.g., psychology of doping) into organised intelligence to protect clean sport. Beyond the foreseeable consequences of a positive identification as a doping user, this task is further complicated by the discrepancy between what constitutes a doping offence in the World Anti-Doping Code and operationalized in doping research. Whilst psychology plays an important role in developing our understanding of doping behaviour in order to inform intervention and prevention, its contribution to the array of doping diagnostic tools is still in its infancy. In both research and forensic settings, we must acknowledge that (1) socially desirable responding confounds self-reported psychometric test results and (2) that the cognitive complexity surrounding test performance means that the response-time based measures and the lie detector tests for revealing concealed life-events (e.g., doping use) are prone to produce false or non-interpretable outcomes in field settings. Differences in social-cognitive characteristics of doping behaviour that are tested at group level (doping users vs. non-users) cannot be extrapolated to individuals; nor these psychometric measures used for individual diagnostics. In this paper, we present a position statement calling for policy guidance on appropriate use of psychometric assessments in the pursuit of clean sport. We argue that, to date, both self-reported and response-time based psychometric tests for doping have been designed, tested and validated to explore how athletes feel and think about doping in order to develop a better understanding of doping behaviour, not to establish evidence for doping. A false 'positive' psychological profile for doping affects not only the individual

  4. A call for policy guidance on psychometric testing in doping control in sport.

    Science.gov (United States)

    Petróczi, Andrea; Backhouse, Susan H; Barkoukis, Vassilis; Brand, Ralf; Elbe, Anne-Marie; Lazuras, Lambros; Lucidi, Fabio

    2015-11-01

    One of the fundamental challenges in anti-doping is identifying athletes who use, or are at risk of using, prohibited performance enhancing substances. The growing trend to employ a forensic approach to doping control aims to integrate information from social sciences (e.g., psychology of doping) into organised intelligence to protect clean sport. Beyond the foreseeable consequences of a positive identification as a doping user, this task is further complicated by the discrepancy between what constitutes a doping offence in the World Anti-Doping Code and operationalized in doping research. Whilst psychology plays an important role in developing our understanding of doping behaviour in order to inform intervention and prevention, its contribution to the array of doping diagnostic tools is still in its infancy. In both research and forensic settings, we must acknowledge that (1) socially desirable responding confounds self-reported psychometric test results and (2) that the cognitive complexity surrounding test performance means that the response-time based measures and the lie detector tests for revealing concealed life-events (e.g., doping use) are prone to produce false or non-interpretable outcomes in field settings. Differences in social-cognitive characteristics of doping behaviour that are tested at group level (doping users vs. non-users) cannot be extrapolated to individuals; nor these psychometric measures used for individual diagnostics. In this paper, we present a position statement calling for policy guidance on appropriate use of psychometric assessments in the pursuit of clean sport. We argue that, to date, both self-reported and response-time based psychometric tests for doping have been designed, tested and validated to explore how athletes feel and think about doping in order to develop a better understanding of doping behaviour, not to establish evidence for doping. A false 'positive' psychological profile for doping affects not only the individual

  5. The admission control algorithm based on the heterogeneous network environment%基于异构网络环境中的接纳控制算法

    Institute of Scientific and Technical Information of China (English)

    黄存东; 王胜

    2012-01-01

    Admission control system which can effectively deal with network congestion can provide dependable Qos for VoIP application. Taking the advantages and universality of Random Early Detection (RED) in implementing fair queue management for VolP application, we proposed a delay analyzing and computing method of RED queues in this paper and achieved a RED--based admission control algorithm whose effectiveness is proved through simulation.%接纳控制机制可以有效控制网络拥塞程度,为VoIP应用提供服务质量保证。RED算法可以为VoIP应用提供公平的队列管理机制,鉴于RED队列的优越性和普遍性,提出了RED队列的延迟分析计算方法,并基于该计算方法设计实现了基于RED的接纳控制算法,仿真结果表明该算法是有效的。

  6. Demand response based on admission control in smart grid%基于接纳控制的智能电网需求响应

    Institute of Scientific and Technical Information of China (English)

    马锴; 姚婷; 关新平

    2015-01-01

    采用效用函数刻画用户的用电满意度,将需求响应问题建模为一类凸优化问题。针对电力供应商的供电量不能满足用户最小用电需求的问题,结合分布式用电量调度和实时定价,设计两类接纳控制算法。仿真结果表明,通过接纳控制,满足了购电用户的最小用电需求,保证了用户的用电质量,能够实现电网的供需平衡。%Utility functions are used to denote the satisfaction of consumers and formulate demand response as a convex optimization problem. For the case that the power supply can not meet the minimum power consumption of the consumers, two admission control algorithms are designed, combining with distributed power consumption scheduling and real-time pricing. Simulation results show that the admission control makes the consumers meet the minimum power consumption, ensure the power quality of the consumers, and balance the supply and the demand in smart grid.

  7. Virtual house calls for Parkinson disease (Connect.Parkinson): study protocol for a randomized, controlled trial

    OpenAIRE

    Achey, Meredith A; Beck, Christopher A.; Beran, Denise B.; Boyd, Cynthia M.; Schmidt, Peter N; Allison W Willis; Riggare, Sara S.; Simone, Richard B.; Biglan, Kevin M.; Dorsey, E. Ray

    2014-01-01

    Background Interest in improving care for the growing number of individuals with chronic conditions is rising. However, access to care is limited by distance, disability, and distribution of doctors. Small-scale studies in Parkinson disease, a prototypical chronic condition, have suggested that delivering care using video house calls is feasible, offers similar clinical outcomes to in-person care, and reduces travel burden. Methods/Design We are conducting a randomized comparative effectivene...

  8. The role of the asthma nurse in treatment compliance and self-management following hospital admission.

    Science.gov (United States)

    Morice, A H; Wrench, C

    2001-11-01

    Effective self-management and treatment compliance is important in achieving good symptom control in asthma. The aim of this study was to determine whether asthma nurse intervention during hospital admission could increase knowledge and improve self-management and whether this would influence the number of emergency call-out visits by Genera Practitioners (GPs) and hospital re-admissions. Patients with acute asthma (n=80) were assessed by the asthma nurse within 24 h of admission using a British Thoracic Society (BTS) guideline-based questionnaire. Main outcome measures were: know edge of inhalers, self-management plans, peak flow monitoring, recognition of worsening symptoms and appropriate emergency action, Following randomization, half received nurse intervention during hospitalization. All received a follow-up questionnaire 6 weeks post-discharge and again at 6 months (response rates 86% and 81% respectively). GPs were contacted by postal questionnaire after 4 months. Questionnaire responses indicated an increase in knowledge in the intervention group, along with an ability to identify appropriate action on worsening symptoms. Emergency GP call-outs were more frequent in the control group in the 4 months post-discharge. Hospital re-admission rates were similar in both groups. Asthma nurse intervention appeared to increase knowledge of asthma management, maintained throughout the study period, but had no significant impact on reducing re-admissions to hospital.

  9. The association of tobacco control policies and the risk of acute myocardial infarction using hospital admissions data.

    Directory of Open Access Journals (Sweden)

    Carmen Jan

    Full Text Available OBJECTIVE: To evaluate the association of a nationwide comprehensive smoking ban (CSB and tobacco tax increase (TTI on the risk of acute myocardial infarctions (AMI in Panama for the period of 2006 - 2010 using hospital admissions data. METHODS: Data of AMI cases was gathered from public and private hospitals in the country for the period of January 1, 2006 to December 31, 2010. The number of AMI cases was calculated on a monthly basis. The risk of AMI was estimated for the pre-CSB period (January 2006 to April 2008 and was used as a reference point. Three post-intervention periods were examined: (1 post-CSB from May 2008 to April 2009 (12 months; (2 post-CSB from May 2009 to November 2009 (7 months; and (3 post-TTI from December 2009 to December 2010 (13 months. Relative risks (RR of AMI were estimated for each post intervention periods by using a Poisson regression model. Mortality registries for the country attributed to myocardial infarction (MI were obtained from January 2001 to December 2012. The annual percentage change (APC of the number of deaths from MI was calculated using Joinpoint regression analysis. RESULTS: A total sample size of 2191 AMI cases was selected (monthly mean number of cases 36.52 ± 8.24 SD. Using the pre-CSB as a reference point (RR = 1.00, the relative risk of AMI during the first CSB period, the second CSB period and post-TTI were 0.982, 1.049, and 0.985, respectively. The APC of deaths from MI from January 2001 to April 2008 was 0.5%. From January 2001 to June 2010 the APC trend was 0.47% and from July 2010 to December 2012 the APC was -0.3%. CONCLUSIONS: The implementation of a CSB and TTI in Panama were associated with a decrease in tobacco consumption and a reduction of the RR of AMI.

  10. Enabling real-time H.26L video services over wireless ad hoc networks using joint admission and transmission power control

    Science.gov (United States)

    Pei, Yong; Modestino, James W.; Qu, Qi; Wang, Xiaochun

    2003-06-01

    In a wireless ad hoc network, packets are sent from node-to-node in a multihop fashion until they reach the destination. In this paper we investigate the capacity of a wireless ad hoc network in supporting packet video transport. The ad hoc network consists of n homogeneous video users with each of them also serving as a relay node for other users. We investigate how the time delay aspects the video throughput in such an ad hoc network and how to provide a time-delay bounded packet video delivery service over such a network? The analytical results indicate that appropriate joint admission and power control have to be employed in order to efficiently utilize the network capacity while operating under the delay constraint as the distance between source and destination changes.

  11. MACHINE LEARNING APPROACHES IN IMPROVING SERVICE LEVEL AGREEMENT-BASED ADMISSION CONTROL FOR A SOFTWARE-AS-A-SERVICE PROVIDER IN CLOUD

    Directory of Open Access Journals (Sweden)

    R. S. Mohana

    2013-01-01

    Full Text Available Software as a Service (SaaS offers reliable access to software applications to the end users over the Internet without direct investment in infrastructure and software. SaaS providers utilize resources of internal data centres or rent resources from a public Infrastructure as a Service (IaaS provider in order to serve their customers. Internal hosting can ample cost of administration and maintenance whereas hiring from an IaaS provider can impact the service quality due to its variable performance. To surmount these drawbacks, we propose pioneering admission control and scheduling algorithms for SaaS providers to effectively utilize public Cloud resources to maximize profit by minimizing cost and improving customer satisfaction level. There is a drawback in this method is strength of the algorithms by handling errors in dynamic scenario of cloud environment, also there is a need of machine learning method to predict the strategies and produce the according resources. The admission control provided by trust model that is based on SLA uses different strategies to decide upon accepting user requests so that there is minimal performance impact, avoiding SLA penalties that are giving higher profit. Machine learning method aims at building a distributed system for cloud resource monitoring and prediction that includes learning-based methodologies for modelling and optimization of resource prediction models. The learning methods are Artificial Neural Network (ANN and Support Vector Machine (SVM are two typical machine learning strategies in the category of regression computation. These two methods can be employed for modelling resource state prediction. In addition, we conduct a widespread evaluation study to analyze which solution matches best in which scenario to maximize SaaS provider’s profit. Results obtained through our extensive simulation shows that our proposed algorithms provide significant improvement (up to 40% cost saving over

  12. Acoustic signalling for mate attraction in crickets: Abdominal ganglia control the timing of the calling song pattern.

    Science.gov (United States)

    Jacob, Pedro F; Hedwig, Berthold

    2016-08-01

    Decoding the neural basis of behaviour requires analysing how the nervous system is organised and how the temporal structure of motor patterns emerges from its activity. The stereotypical patterns of the calling song behaviour of male crickets, which consists of chirps and pulses, is an ideal model to study this question. We applied selective lesions to the abdominal nervous system of field crickets and performed long-term acoustic recordings of the songs. Specific lesions to connectives or ganglia abolish singing or reliably alter the temporal features of the chirps and pulses. Singing motor control appears to be organised in a modular and hierarchically fashion, where more posterior ganglia control the timing of the chirp pattern and structure and anterior ganglia the timing of the pulses. This modular organisation may provide the substrate for song variants underlying calling, courtship and rivalry behaviour and for the species-specific song patterns in extant crickets. PMID:27109338

  13. The control of rheumatic fever and rheumatic heart disease: a call to raise the awareness.

    Science.gov (United States)

    Kheir, Sirageldin M; Ali, Sulafa Khalid M

    2014-01-01

    Although the incidence of rheumatic fever (RF) and rheumatic heart disease (RHD) has declined in the developed world and many developing countries, yet it is still high in many countries including Sudan. The decline of frequency of RF in these countries is largely due to improved medical services leading to wide use of antibiotics to treat bacterial pharyngitis. In many developing countries, the incidence is decreased due to development of integrated control programs. Depending on secondary prophylaxis alone was shown to be ineffective, therefore, many countries, including Sudan initiated control programs that utilize both primary and secondary prevention together with increasing awareness and surveillance. The new program started in 2012 in Sudan in order to achieve its goal of reducing mortality of RHD by 25% in individual less than 25 years of age by year 2025. This article throws light on RF and RHD and its control program in Sudan. PMID:27493385

  14. Calling all LEGO lovers! Add a mini control room to your collection

    CERN Multimedia

    Katarina Anthony

    2015-01-01

    The mini LHC Lego project launched in March (see here) now has almost 6,000 supporters - well on its way to the 10,000 votes needed for it to (hopefully!) hit store shelves. This week, the project added a new feature to its line: a mini control centre! The new LEGO Control centre, featuring operators "Kerstin" and "Marco".   The mini LHC project is the brainchild of ATLAS PhD student Nathan Readioff, who designed Lego replicas of the LHC and the ALICE, ATLAS, CMS and LHCb experiments on a micro scale. Each detector model is small enough to fit in the palm of your hand but crammed with detailed internal systems revealed by cutaway walls. Every major detector component is represented by a Lego piece. Now, Nathan has created a control centre to complement the mini LHC project. This would be an add-on feature for Lego’s consideration, should they decide to develop the accelerator into a box set. “The control centre is ...

  15. Information retrieval and control system called Actuation Techniques of GNTh NIIAR

    International Nuclear Information System (INIS)

    A computer-aided data base on testing methods formed and applied in NIIAR when investigating reactor materials and components, as well as when controlling process parameters in nuclear reactors is discussed. The data base includes 496 testing methods. The system of classification characteristics developed, as well as the software used are described

  16. Using Social Media "Smartly" in the Admissions Process

    Science.gov (United States)

    Parrot, Teresa Valerio; Tipton, Stacia

    2010-01-01

    Admissions officers around the country are hearing consistent calls to enhance their social media presence. Whether the pressure is from administrators, influential alumni, or peers across institutions, social media are touted as the next big thing in admissions marketing. But are social media strategies truly "strategic," or are they merely…

  17. A call for policy guidance on psychometric testing in doping control in sport

    DEFF Research Database (Denmark)

    Petróczi, Andrea; Backhouse, Susan H.; Barkoukis, Vassilis;

    2015-01-01

    One of the fundamental challenges in anti-doping is identifying athletes who use, or are at risk of using, prohibited performance enhancing substances. The growing trend to employ a forensic approach to doping control aims to integrate information from social sciences (e.g., psychology of doping......) into organised intelligence to accelerate the pursuit of clean sport. Beyond the foreseeable consequences of a positive identification as a doping user, this task is further complicated by the discrepancy between what constitutes a doping offence in the World Anti-Doping Code and operationalized in doping...... research. Whilst psychology plays an important role in developing our understanding of doping behaviour in order to inform intervention and prevention, its contribution to the array of doping diagnostic tools is still in its infancy. At the same time, we must acknowledge that socially desirable responding...

  18. Challenges and Opportunities for Typhoid Fever Control: A Call for Coordinated Action.

    Science.gov (United States)

    Steele, A Duncan; Hay Burgess, Deborah C; Diaz, Zoey; Carey, Megan E; Zaidi, Anita K M

    2016-03-15

    The burden of enteric fever caused by Salmonella enterica serovars Typhi and Paratyphi is substantial and has high impact in toddlers and young children. This burden is relatively well documented in Asia, and this supplement provides new data on the substantial burden in several sub-Saharan African countries. Challenges in standardized surveillance and imperfect diagnostic tools have resulted in patchy local disease data, which are not well acknowledged or integrated into local country evidence and health awareness for decision making. There is a need to strengthen diagnostics for the generation of burden data in country. Furthermore, the guidelines and training for treatment of enteric fever cases in Africa are sorely needed to help mitigate the inappropriate use of antimicrobial treatment. Classic water safety and access to sanitation development remain powerful tools for the control of typhoid fever, yet the huge economic costs and long timelines are unlikely to provide a short- to middle-term solution. Emerging threats, including multidrug resistance and increasing urbanization in regions such as sub-Saharan Africa, warrant focused attention to shorter-term interventions including immunization, and must include vaccine strategies with the new typhoid conjugate vaccines.

  19. Growing old at home – A randomized controlled trial to investigate the effectiveness and cost-effectiveness of preventive home visits to reduce nursing home admissions: study protocol [NCT00644826

    Directory of Open Access Journals (Sweden)

    Riedel-Heller Steffi G

    2008-05-01

    Full Text Available Abstract Background Regarding demographic changes in Germany it can be assumed that the number of elderly and the resulting need for long term care is increasing in the near future. It is not only an individual's interest but also of public concern to avoid a nursing home admission. Current evidence indicates that preventive home visits can be an effective way to reduce the admission rate in this way making it possible for elderly people to stay longer at home than without home visits. As the effectiveness and cost-effectiveness of preventive home visits strongly depends on existing services in the social and health system existing international results cannot be merely transferred to Germany. Therefore it is necessary to investigate the effectiveness and cost-effectiveness of such an intervention in Germany by a randomized controlled trial. Methods The trial is designed as a prospective multi-center randomized controlled trial in the cities of Halle and Leipzig. The trial includes an intervention and a control group. The control group receives usual care. The intervention group receives three additional home visits by non-physician health professionals (1 geriatric assessment, (2 consultation, (3 booster session. The nursing home admission rate after 18 months will be defined as the primary outcome. An absolute risk reduction from a 20% in the control-group to a 7% admission rate in the intervention group including an assumed drop out rate of 30% resulted in a required sample size of N = 320 (n = 160 vs. n = 160. Parallel to the clinical outcome measurement the intervention will be evaluated economically. The economic evaluation will be performed from a society perspective. Discussion To the authors' knowledge for the first time a trial will investigate the effectiveness and cost-effectiveness of preventive home visits for people aged 80 and over in Germany using the design of a randomized controlled trial. Thus, the trial will contribute to

  20. Wireless Mesh Networks Admission Control Based on Non-Cooperative Game%基于非合作博弈的无线Mesh网络接入控制

    Institute of Scientific and Technical Information of China (English)

    翟师伟; 沈士根; 曹奇英

    2016-01-01

    For implementing the equilibrium of network load and fairness of resource allocation, this paper models admission con-trol between a new station and a Mesh access point as a non-cooperative game to analyze the equilibrium point between the net-work load and the departure probability, taking the QoS satisfaction degree, access cost, network load and departure probability into consideration.The station utilization of network resource which is optimized by introducing the station information sharing mechanism to ensure the fairness of resource allocation.Experiments show that the non-cooperative model and station information sharing mechanism can ensure the station utilization of network resource as a whole, and thus ensure the fairness of resource allo-cation.%为实现无线Mesh网络中网络负载的均衡性和资源分配的公平性,将新站点和Mesh接入点之间的接入控制过程形式化为一个非合作博弈,结合站点的QoS满意度、连接成本、网络负载和站点离开率4个网络连接的参数函数,对网络负载与站点离开率的均衡点进行分析。引入站点信息分享机制,对站点利用网络资源的效率进行优化,保证资源分配的公平性。实验仿真表明,非合作博弈模型和站点信息分享机制能够从整体保证站点利用资源的效率,从而保证资源分配的公平性。

  1. EMERGENCY CALLS

    CERN Multimedia

    Medical Service

    2001-01-01

    IN URGENT NEED OF A DOCTOR GENEVA EMERGENCY SERVICES GENEVA AND VAUD 144 FIRE BRIGADE 118 POLICE 117 CERN FIREMEN 767-44-44 ANTI-POISONS CENTRE Open 24h/24h 01-251-51-51 Patient not fit to be moved, call family doctor, or: GP AT HOME, open 24h/24h 748-49-50 Association Of Geneva Doctors Emergency Doctors at home 07h-23h 322 20 20 Patient fit to be moved: HOPITAL CANTONAL CENTRAL 24 Micheli-du-Crest 372-33-11 ou 382-33-11 EMERGENCIES 382-33-11 ou 372-33-11 CHILDREN'S HOSPITAL 6 rue Willy-Donzé 372-33-11 MATERNITY 32 bvd.de la Cluse 382-68-16 ou 382-33-11 OPHTHALMOLOGY 22 Alcide Jentzer 382-33-11 ou 372-33-11 MEDICAL CENTRE CORNAVIN 1-3 rue du Jura 345 45 50 HOPITAL DE LA TOUR Meyrin EMERGENCIES 719-61-11 URGENCES PEDIATRIQUES 719-61-00 LA TOUR MEDICAL CENTRE 719-74-00 European Emergency Call 112 FRANCE EMERGENCY SERVICES 15 FIRE BRIGADE 18 POLICE 17 CERN FIREMEN AT HOME 00-41-22-767-44-44 ANTI-POISONS CENTRE Open 24h/24h 04-72-11-69-11 All doctors ...

  2. Hospital admissions before and after shipyard closure.

    Science.gov (United States)

    Bartley, M; Fagin, L

    1990-03-01

    "To determine the effect of job loss on health an investigation was made of admissions to hospitals in 887 men five years before and three years after the closure of a Danish shipyard. The control group comprised 441 men from another shipyard. The information on hospital admissions was obtained from the Danish national register of patients. The relative risk of admission in the control group dropped significantly in terms of the number of men admitted from the study group from 1.29 four to five years before closure to 0.74 in the three years after closure. This was especially true of admissions due to accidents (1.33 to 0.46) and diseases of the digestive system (4.53 to 1.03). For diseases of the circulatory system, particularly cardiovascular diseases, the relative risk increased from 0.8 to 1.60, and from 1.0 to 2.6 respectively. These changes in risk of illness after redundancy are probably a consequence of a change from the effects of a high risk work environment to the effects of psychosocial stresses such as job insecurity and unemployment."

  3. Admissibility of logical inference rules

    CERN Document Server

    Rybakov, VV

    1997-01-01

    The aim of this book is to present the fundamental theoretical results concerning inference rules in deductive formal systems. Primary attention is focused on: admissible or permissible inference rules the derivability of the admissible inference rules the structural completeness of logics the bases for admissible and valid inference rules. There is particular emphasis on propositional non-standard logics (primary, superintuitionistic and modal logics) but general logical consequence relations and classical first-order theories are also considered. The book is basically self-contained and

  4. Call Forecasting for Inbound Call Center

    OpenAIRE

    Peter Vinje

    2009-01-01

    In a scenario of inbound call center customer service, the ability to forecast calls is a key element and advantage. By forecasting the correct number of calls a company can predict staffing needs, meet service level requirements, improve customer satisfaction, and benefit from many other optimizations. This project will show how elementary statistics can be used to predict calls for a specific company, forecast the rate at which calls are increasing/decreasing, and determine if the calls may...

  5. Delay-Constrained Admission and Bandwidth Allocation for Long-Reach EPON

    Directory of Open Access Journals (Sweden)

    Burak Kantarci

    2012-05-01

    Full Text Available Next generation Passive Optical Network (PONtechnology has been evolving to consolidate the metro andaccess networks in order to offer enhanced capacity, highsplit ratio and reduced deployment cost per subscriber.However, transmission of the signals to long distances up to100km leads to increased propagation delay whereas highsplit ratio may lead to long cycle times resulting in largequeue occupancies and long packet delays. In this article, wepresent a delay-constrained admission control mechanismand adapt this scheme to our previously proposed bandwidthallocation technique, namely Periodic GATE Optimization(PGO. We call this new scheme Delay-Constrained PeriodicGATE Optimization (DC-PGO. DC-PGO is designed to runfor multiple service classes as it inherits the advantages ofPGO by periodically building and solving an ILP formulationat the OLT in order to obtain the appropriate creditvalues for the overloaded ONUs. At the ONU side, DCPGOruns an admission control scheme before pushing thearriving packets in the sub-queues. The admission controlscheme uses statistical information consisting of the localdata at the ONU and the previously received GATE messagesfrom the OLT. Through simulations, we show that DC-PGOenhances the performance of multi-threaded polling in longreachEthernet PON when packets of differentiated serviceclasses arrive with pre-specified delay requirements.

  6. Differential Freshman Admission by Sex

    Science.gov (United States)

    Suddick, David E.; McBee, M. Louise

    1974-01-01

    The authors report on a study whose purpose was to determine if, after adjusting for initial differences in high school averages and SAT scores via separate regression equations, differential admissions criterion by sex is justifiable. No justification is found. (RP)

  7. CARDIOTOCOGRAPH: ADMISSION TEST AND OUTCOME

    Directory of Open Access Journals (Sweden)

    Nesam Susana

    2015-12-01

    Full Text Available The main objective of intrapartum fetal monitoring is reduction or prevention of congenital neurological deficit and other intrapartum adverse events by screening for intrapartum hypoxia/acidosis. With an aim of evaluating role of admission test in predicting the adverse fetal outcome in high risk pregnancies in Government Chengalpattu Medical College, a cross-sectional study was designed including 50 high risk patients and 50 low risk patients. All the patients were subjected to a standard clinical evaluation using a proforma and subsequently subjected to admission test for 20 mins and their readings were grouped into 1. Reactive, 2. Suspicious, 3. Ominous. Intervention is planned based on the tracings of the admission test. The data from the admission test were compiled and subjected to statistical analysis. At the end of statistical analysis, it is found that electronic fetal monitoring has high sensitivity and low specificity. Antepartum risk factors are a poor predictors of fetal outcome. A normal tracing carries a predictive value of over 95% for APGAR score of 7 or greater and an abnormal tracing carries a predictive value of about 50% for APGAR score less than 7. In high risk cases admission test is more sensitive and in low risk cases the admission test is more specific. The negative predictive value for both groups were 85.2% and 97.7%

  8. Call Center ist nicht gleich Call Center

    OpenAIRE

    Baumgartner, Marc; Udris, Ivars

    2005-01-01

    Untersuchungen in 14 Schweizer Call Centers erbrachten vier Call Center-Typen, die sich hinsichtlich Arbeitstätigkeiten und Kommunikationsrichtung voneinander unterscheiden: (a) Beratungs- und Beschwerdemanagement, (b) Informationsmanagement, (c) Auftragsmanagement und (d) Kunden- und Kampagnenmanagement. Dies hat auch Auswirkungen auf die Personalstruktur, -selektion und -entwicklung der Call Center. Es wird der Frage nachgegangen, welche Kompetenzanforderungen in den unterschiedlichen Call ...

  9. A new focus on assessing and treating asthma control in the African-American community: a call to action.

    Science.gov (United States)

    Lenoir, Michael; McGill, Cheryl Lynn Walker; Graham, Leroy M; Foggs, Michael; Robinson, Sandra; Crim, Courtney; Stempel, David A

    2008-09-01

    Asthma continues to be a highly prevalent disease characterized by significant morbidity, unnecessary mortality, and substantial cost to the health care system. After decades of increasing prevalence, the number of current asthmatics in recent years has plateaued at approximately 22 million people in the United States. An additional 10 million Americans have a past history of asthma that is not active. The burden of asthma is higher among African Americans than in any other racial or ethnic group in America. The African-American community continues to experience a disproportional increase in asthma prevalence, morbidity, and mortality. The educational initiatives stemming from the newly revised National Heart Lung and Blood Institute (NHLBI) guidelines provide the opportunity to address the increased burden of asthma in the African American community. These new guidelines, released in August 2007, focus on asthma control as the primary goal of therapy, routine monitoring of asthma control, and use of asthma control assessments to direct treatment. The present review discusses the following: I. The impact of health disparities on outcomes of African Americans with asthma, II. The barriers that prevent asthmatic patients from achieving optimal control, III. The unique factors that challenge practitioners and patients in achieving optimal asthma control in the African American Community, IV. The impact of good asthma control and the need for patients and clinicians to assess asthma control in with a standardized assessment tool, and V. Strategic initiatives and the role of the End The Attacks NOW program in improving outcomes for African American patients with asthma. PMID:18924317

  10. 44 CFR 68.9 - Admissible evidence.

    Science.gov (United States)

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Admissible evidence. 68.9 Section 68.9 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF... admissible. (b) Documentary and oral evidence shall be admissible. (c) Admissibility of non-expert...

  11. Admission control with batch arrivals and imperfect information in loss systems%批量到达及不完美信息条件下损失系统的准入控制

    Institute of Scientific and Technical Information of China (English)

    叶涛锋; 达庆利

    2011-01-01

    研究面向2个任务类的损失系统中的动态准入控制策略.任务有不同的服务时间要求和不同的报酬,对于到达的任务,服务提供者无法直接判断每个任务属于哪一类,但能观测到每个任务所带的信号.证明了值函数的次模性和凹性,且存在一个唯一的用于对任务进行归类的信号阈值,建立了一个4层的准入控制策略.当任务信号的信息量较少时,在一定的条件下所建立的准入策略仍然有效.最后,将所建立的4层准入控制策略应用于不完美信息条件下的库存配给问题,应用结果表明该控制策略是可行而有效的.%This paper considers the dynamic admission control policy in a two-class loss system.Each class of jobs requires different service rates and offer different rewards.The service provider cannot directly determine the identities but can observe the signals of the jobs in a batch.The submodularity and concavity properties of the value function are proved. There is a signal threshold such that the jobs with signals larger than or equal to it are classified as class 1,and those with signals smaller than it are classified as class 2.Consequently,a four-layer admission control policy is established.When the signals are less informative,the main results are also available under some certain conditions.Finally,the resulting admission control policy is applied to an inventory rationing problem with imperfect information,and the feasibility and effectiveness of such a polity is identified.

  12. Call Forecasting for Inbound Call Center

    Directory of Open Access Journals (Sweden)

    Peter Vinje

    2009-01-01

    Full Text Available In a scenario of inbound call center customer service, the ability to forecast calls is a key element and advantage. By forecasting the correct number of calls a company can predict staffing needs, meet service level requirements, improve customer satisfaction, and benefit from many other optimizations. This project will show how elementary statistics can be used to predict calls for a specific company, forecast the rate at which calls are increasing/decreasing, and determine if the calls may stop at some point.

  13. Customer Service Call Center Indoor Noise Control%客服呼叫中心室内噪声控制

    Institute of Scientific and Technical Information of China (English)

    许俊

    2014-01-01

    分析客服呼叫中心室内噪声的来源,结合工程实际情况进行模拟实验分析,提出室内噪声控制的综合解决方案。为今后投产的客服呼叫中心营造尽可能舒适、宽松的工作环境,提高客服员工的工作效率,保证客户服务的质量。%It analyzes the source of indoor noise in customer service cal center, makes simulative experiment and analysis and gets inte-grated solution on indoor noise control, to build comfortable working environment for the future customer service cal center.

  14. Efficacy and safety of insulin treatment in type 2 diabetes using a new index called glucose safety control index

    Institute of Scientific and Technical Information of China (English)

    CAI Xiao-ling; LUO Ying-ying; HAN Xue-yao; JI Li-nong

    2013-01-01

    Objective To recommend an index named glucose safety control index (GSCI) to evaluate the efficacy and safety for insulin regimens.Data sources We searched databases for primary studies published in English.The main search concepts were type 2 diabetes,insulin treatment,premixed insulin,premixed insulin analogs,basal inuslin,basal inuslin analogs,bolus insulin,bolus insulin analogs,safety and efficacy.Study selection Studies were eligible for inclusion if they met all of the following criteria:(1) type 2 diabetic patients aged >18 years were included; (2) random control studies with at least 12 weeks of follow-up; (3) different insulin regimens were evaluated.Results When long-acting basal insulin therapy compared with neutral protamine Hagedorn (NPH) insulin therapy,the proportion of GSCI%A1c ratio more than 1 was 100%,the proportion of GSCIΔA1c ratio more than 1 was 94.44%.When premixed insulin therapy compared with oral hypoglycemic agents plus basal insulin therapy,the proportion of GSCI%A1c ratio more than 1 was 45.5%,the proportion of GSCIΔA1c ratio more than 1 was 38.9%.When premixed insulin therapy compared with oral hypoglycemic agents,the proportion of GSCI%A1c ratio less than 1 was 100%,the proportion of GSCI△A1c ratio more than 1 was 50%.When premixed insulin therapy compared with basal-bolus insulin therapy,the proportion of GSCI%A1c ratio more than 1 was 37.5%,the proportion of GSCIΔA1c ratio more than 1 was 50%.Conclusion According to the GSCI ratio,long-acting basal insulin therapy tended to be superior to NPH therapy,oral hypoglycemic agents plus basal insulin therapy tended to be superior to premixed insulin therapy,noninsulin antidiabetic agents and premixed insulin therapy was comparable,and basal-bolus insulin therapy tended to be superior to premixed insulin therapy in type 2 diabetes.

  15. Knowledge, awareness, and attitude regarding infection prevention and control among medical students: a call for educational intervention

    Science.gov (United States)

    Ibrahim, Awab Ali; Elshafie, Sittana Shamseldin

    2016-01-01

    Background Medical students can be exposed to serious health care-associated infections, if they are not following infection prevention and control (IPC) measures. There is limited information regarding the knowledge, awareness, and practices of medical students regarding IPC and the educational approaches used to teach them these practices. Aim To evaluate the knowledge, awareness, and attitude of medical students toward IPC guidelines, and the learning approaches to help improve their knowledge. Methods A cross-sectional, interview-based survey included 73 medical students from Weill Cornell Medical College, Qatar. Students completed a questionnaire concerning awareness, knowledge, and attitude regarding IPC practices. Students’ knowledge was assessed by their correct answers to the survey questions. Findings A total of 48.44% of the respondents were aware of standard isolation precautions, 61.90% were satisfied with their training in IPC, 66.13% were exposed to hand hygiene training, while 85.48% had sufficient knowledge about hand hygiene and practiced it on a routine basis, but only 33.87% knew the duration of the hand hygiene procedure. Conclusion Knowledge, attitude, and awareness of IPC measures among Weill Cornell Medical Students in Qatar were found to be inadequate. Multifaceted training programs may have to target newly graduated medical practitioners or the training has to be included in the graduate medical curriculum to enable them to adopt and adhere to IPC guidelines. PMID:27579002

  16. Knowledge, awareness, and attitude regarding infection prevention and control among medical students: a call for educational intervention

    Science.gov (United States)

    Ibrahim, Awab Ali; Elshafie, Sittana Shamseldin

    2016-01-01

    Background Medical students can be exposed to serious health care-associated infections, if they are not following infection prevention and control (IPC) measures. There is limited information regarding the knowledge, awareness, and practices of medical students regarding IPC and the educational approaches used to teach them these practices. Aim To evaluate the knowledge, awareness, and attitude of medical students toward IPC guidelines, and the learning approaches to help improve their knowledge. Methods A cross-sectional, interview-based survey included 73 medical students from Weill Cornell Medical College, Qatar. Students completed a questionnaire concerning awareness, knowledge, and attitude regarding IPC practices. Students’ knowledge was assessed by their correct answers to the survey questions. Findings A total of 48.44% of the respondents were aware of standard isolation precautions, 61.90% were satisfied with their training in IPC, 66.13% were exposed to hand hygiene training, while 85.48% had sufficient knowledge about hand hygiene and practiced it on a routine basis, but only 33.87% knew the duration of the hand hygiene procedure. Conclusion Knowledge, attitude, and awareness of IPC measures among Weill Cornell Medical Students in Qatar were found to be inadequate. Multifaceted training programs may have to target newly graduated medical practitioners or the training has to be included in the graduate medical curriculum to enable them to adopt and adhere to IPC guidelines.

  17. Flight calls and orientation

    DEFF Research Database (Denmark)

    Larsen, Ole Næsbye; Andersen, Bent Bach; Kropp, Wibke;

    2008-01-01

      In a pilot experiment a European Robin, Erithacus rubecula, expressing migratory restlessness with a stable orientation, was video filmed in the dark with an infrared camera and its directional migratory activity was recorded. The flight overhead of migrating conspecifics uttering nocturnal...... flight calls was simulated by sequential computer controlled activation of five loudspeakers placed in a linear array perpendicular to the bird's migration course. The bird responded to this stimulation by changing its migratory course in the direction of that of the ‘flying conspecifics' but after about...... 30 minutes it drifted back to its original migration course. The results suggest that songbirds migrating alone at night can use the flight calls from conspecifics as additional cues for orientation and that they may compare this information with other cues to decide what course to keep....

  18. Admission to Selective Schools, Alphabetically

    Science.gov (United States)

    Jurajda, Stepan; Munich, Daniel

    2010-01-01

    One's position in an alphabetically sorted list may be important in determining access to over-subscribed public services. Motivated by anecdotal evidence, we investigate the importance of the position in the alphabet of Czech students for their admission chances into over-subscribed schools. Empirical evidence based on the population of students…

  19. Controle de plantas daninhas em arroz irrigado mediante o momento da admissão e da altura da lâmina de água Weed control in lowland rice, using water application moment and water dephts

    OpenAIRE

    Enes Furlani Junior; José Ricardo Machado; Edivaldo Domingues Velini

    1995-01-01

    Este trabalho, desenvolvido ao nível de campo, na Fazenda Experimental Edgárdia, da Faculdade de Ciências Agronômicas da UNESP, Botucatu, no ano agrícola 1990/91, objetivou avaliar os efeitos do momento de admissão da água e da altura da lâmina de água sobre o desenvolvimento das plantas daninhas e os reflexos sobre as de arroz. O delineamento experimental usado foi de blocos ao acaso com parcelas subsubdivididas. Às parcelas, corresponderam os momentos de admissão de água M1, M2 e M3, respec...

  20. Forecasting paediatric malaria admissions on the Kenya Coast using rainfall

    Directory of Open Access Journals (Sweden)

    Stella Wanjugu Karuri

    2016-02-01

    Full Text Available Background: Malaria is a vector-borne disease which, despite recent scaled-up efforts to achieve control in Africa, continues to pose a major threat to child survival. The disease is caused by the protozoan parasite Plasmodium and requires mosquitoes and humans for transmission. Rainfall is a major factor in seasonal and secular patterns of malaria transmission along the East African coast. Objective: The goal of the study was to develop a model to reliably forecast incidences of paediatric malaria admissions to Kilifi District Hospital (KDH. Design: In this article, we apply several statistical models to look at the temporal association between monthly paediatric malaria hospital admissions, rainfall, and Indian Ocean sea surface temperatures. Trend and seasonally adjusted, marginal and multivariate, time-series models for hospital admissions were applied to a unique data set to examine the role of climate, seasonality, and long-term anomalies in predicting malaria hospital admission rates and whether these might become more or less predictable with increasing vector control. Results: The proportion of paediatric admissions to KDH that have malaria as a cause of admission can be forecast by a model which depends on the proportion of malaria admissions in the previous 2 months. This model is improved by incorporating either the previous month's Indian Ocean Dipole information or the previous 2 months’ rainfall. Conclusions: Surveillance data can help build time-series prediction models which can be used to anticipate seasonal variations in clinical burdens of malaria in stable transmission areas and aid the timing of malaria vector control.

  1. The Impact of a Proactive Chronic Care Management Program on Hospital Admission Rates in a German Health Insurance Society

    OpenAIRE

    Hamar, Brent; Wells, Aaron; Gandy, William; Haaf, Andreas; Coberley, Carter; Pope, James E.; Rula, Elizabeth Y.

    2010-01-01

    Hospital admissions are the source of significant health care expenses, although a large proportion of these admissions can be avoided through proper management of chronic disease. In the present study, we evaluate the impact of a proactive chronic care management program for members of a German insurance society who suffer from chronic disease. Specifically, we tested the impact of nurse-delivered care calls on hospital admission rates. Study participants were insured individuals with corona...

  2. Advising and Admission: Partners in Enrollment Management.

    Science.gov (United States)

    Devine, Joseph E.

    1987-01-01

    Focuses on marketing strategies for college admission and examines the essential interaction between admission and academic units as a means of enhancing retention and producing informed, satisfied consumers/students. (KS)

  3. 10 CFR 2.708 - Admissions.

    Science.gov (United States)

    2010-01-01

    ... admission of the genuineness and authenticity of any relevant document described in or attached to the... document for which an admission of genuineness and authenticity is requested must be delivered with...

  4. Why Do Students Repeat Admissions Tests?

    Science.gov (United States)

    Jones, Martha S.

    Attitudes and beliefs about the admissions process, especially the role of standardized testing in admissions, were examined for students who took a standardized admissions test more than once. Their attitudes were compared with those of students who did not repeat the test. About 200 preveterinary students who had taken the Veterinary Aptitude…

  5. Why and when citizens call for emergency help

    DEFF Research Database (Denmark)

    Møller, Thea Palsgaard; Ersbøll, Annette Kjær; Tolstrup, Janne Schurmann;

    2015-01-01

    BACKGROUND: A medical emergency call is citizens' access to pre-hospital emergency care and ambulance services. Emergency medical dispatchers are gatekeepers to provision of pre-hospital resources and possibly hospital admissions. We explored causes for access, emergency priority levels, and temp......, and ultimately development of best practice in the area of emergency medicine.......BACKGROUND: A medical emergency call is citizens' access to pre-hospital emergency care and ambulance services. Emergency medical dispatchers are gatekeepers to provision of pre-hospital resources and possibly hospital admissions. We explored causes for access, emergency priority levels...

  6. 层次型WSN中基于博弈论的能耗优化与接纳控制机制%Energy optimization and admission control based on game theory in hierarchical wireless sensor networks

    Institute of Scientific and Technical Information of China (English)

    ZHAO Ji-jun; WANG Shuo; XUE Liang; LI Zhi-hua; WEI Zhong-cheng

    2014-01-01

    Energy constraint of cluster heads is an important issue in hierarchical wireless sensor networks.This paper proposed an admission control scheme based on a non-cooperative game model to solve the problem. By defining a pricing factor in the utility funct%针对层次型无线传感器网络中簇首节点的能量受限问题,提出了一种基于非合作博弈模型的节点接纳控制机制。该机制依据簇首节点的效用函数,引入定价因子,优化了簇首数目和功率水平,并得到簇首发射功率的纳什均衡。仿真实验模拟该博弈的均衡过程,将簇首节点设为非合作博弈的参与者,对各簇首节点发射功率的决策过程进行验证。

  7. Controle de plantas daninhas em arroz irrigado mediante o momento da admissão e da altura da lâmina de água Weed control in lowland rice, using water application moment and water dephts

    Directory of Open Access Journals (Sweden)

    Enes Furlani Junior

    1995-01-01

    Full Text Available Este trabalho, desenvolvido ao nível de campo, na Fazenda Experimental Edgárdia, da Faculdade de Ciências Agronômicas da UNESP, Botucatu, no ano agrícola 1990/91, objetivou avaliar os efeitos do momento de admissão da água e da altura da lâmina de água sobre o desenvolvimento das plantas daninhas e os reflexos sobre as de arroz. O delineamento experimental usado foi de blocos ao acaso com parcelas subsubdivididas. Às parcelas, corresponderam os momentos de admissão de água M1, M2 e M3, respectivamente, 15, 42 e 74 dias após a emergência das plantas de arroz. As subparcelas corresponderam às alturas das lâminas de água L5, L10 e L15, respectivamente, 5, 10 e 15 cm e as subsubparcelas, a dois sistemas de condução: com capina (cc e sem capina (sc. Verificou-se que o desenvolvimento das plantas daninhas foi afetado tanto pelo momento de admissão de água como pela altura da lâmina de água sendo a produção de grãos reduzida 61,5% devido à competição das plantas daninhas com a cultura.This research was carried out at the "Experimental Edgárdia Farm" - State of São Paulo University, Campus of Botucatu - Brazil, during the growing season of 1990/91. The objective was to evaluate the effect of water depths and the beginning of water application on the weed development and rice yield. Three water dephts (5, 10 and 15 cm; three water application moments (15, 42 and 74 days after crop emergence and weed management (weeded and unweeded were tested in a randomized complete block design, arranged in split-splitplots. The moments were the main plots; the water depths, the splitplots and the weed management, the split-splitplots. The weed development was affected by the water depths and water application moments. The grain yield was reduced in 61.5% by the weed competition with the rice crop.

  8. La calle de la Lona

    OpenAIRE

    Marín Reñasco, Alejandro

    2014-01-01

    Relato en el que se describe el ambiente cargado de realidad cotidiana de los habitantes de una calle, la calle de la lona. En el transcurso de la mañana de un sábado en una calle ubicado en una zona obrera de una ciudad cualquiera, el autor disecciona con un lenguaje preciso y brillante los juegos de los niños que aprovechan la mañana de libranza escolar para liberarse de la atmósfera cargada de sus casas alejándose del control familiar transgrediendo los límites de la calle…allá donde el mu...

  9. Risk factors for pediatric intensive care admission in children with acute asthma

    NARCIS (Netherlands)

    G.E. van den Bosch (Gerbrich); P.J.F.M. Merkus (Peter); C.M.P. Buysse (Corinne); A.L. Boehmer; A.A.P.H. Vaessen-Verberne (Anja); L. van Veen (Leoniek); W.C.J. Hop (Wim); M. de Hoog (Matthijs)

    2012-01-01

    textabstractINTRODUCTION: Severe acute asthma in children is associated with substantial morbidity and may require pediatric ICU (PICU) admission. The aim of the study was to determine risk factors for PICU admission. METHODS: The study used a retrospective multicenter case-control design. The cases

  10. Risk factors for pediatric intensive care admission in children with acute asthma.

    NARCIS (Netherlands)

    Bosch, G.E. van den; Merkus, P.J.F.M.; Buysse, C.M.; Boehmer, A.L.; Vaessen-Verberne, A.A.; Veen, L.N. van; Hop, W.C.J.; Hoog, M. de

    2012-01-01

    INTRODUCTION: Severe acute asthma in children is associated with substantial morbidity and may require pediatric ICU (PICU) admission. The aim of the study was to determine risk factors for PICU admission. METHODS: The study used a retrospective multicenter case-control design. The cases included ch

  11. Seasonal variations in hospital admissions for mania

    DEFF Research Database (Denmark)

    Medici, Clara Reece; Vestergaard, Claus Høstrup; Hadzi-Pavlovic, Dusan;

    2016-01-01

    BACKGROUND: Bipolar disorder is characterized by a seasonal pattern with emerging evidence that weather conditions may trigger symptoms. Thus, our aims were to investigate if year-to-year variations in admissions with mania correlated with year-to-year variations in key meteorological variables...... Central Research Register. The Danish Meteorological Institute provided the meteorological variables. The association between weather and admissions was tested using linear regression. RESULTS: Our database comprised 24,313 admissions with mania. There was a seasonal pattern with admission rates peaking...

  12. Evaluation of call options

    Institute of Scientific and Technical Information of China (English)

    陈道平

    2002-01-01

    The European and American call options,for which the prices of their underlying asset follow compound Poisson process,are evaluated by a probability method.Formulas that can be used to evaluate the options are obtained,which include not only the elements of an option:the price of the call option,the exercise price and the expiration date,but also the riskless interest rate,nevertheless exclude the volatility of the underlying asset.In practice,the evaluated results obtained by these formulas can proved references of making strategic decision for an investor who buys the call option and a company who sells the call option.

  13. Admissibilities of linear estimator in a class of linear models with a multivariate t error variable

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    This paper discusses admissibilities of estimators in a class of linear models,which include the following common models:the univariate and multivariate linear models,the growth curve model,the extended growth curve model,the seemingly unrelated regression equations,the variance components model,and so on.It is proved that admissible estimators of functions of the regression coefficient β in the class of linear models with multivariate t error terms,called as Model II,are also ones in the case that error terms have multivariate normal distribution under a strictly convex loss function or a matrix loss function.It is also proved under Model II that the usual estimators of β are admissible for p 2 with a quadratic loss function,and are admissible for any p with a matrix loss function,where p is the dimension of β.

  14. Call Center Capacity Planning

    DEFF Research Database (Denmark)

    Nielsen, Thomas Bang

    The main topics of the thesis are theoretical and applied queueing theory within a call center setting. Call centers have in recent years become the main means of communication between customers and companies, and between citizens and public institutions. The extensively computerized infrastructu...

  15. Callings and Organizational Behavior

    Science.gov (United States)

    Elangovan, A. R.; Pinder, Craig C.; McLean, Murdith

    2010-01-01

    Current literature on careers, social identity and meaning in work tends to understate the multiplicity, historical significance, and nuances of the concept of calling(s). In this article, we trace the evolution of the concept from its religious roots into secular realms and develop a typology of interpretations using occupation and religious…

  16. Admission to Law School: New Measures

    Science.gov (United States)

    Shultz, Marjorie M.; Zedeck, Sheldon

    2012-01-01

    Standardized tests have been increasingly controversial over recent years in high-stakes admission decisions. Their role in operationalizing definitions of merit and qualification is especially contested, but in law schools this challenge has become particularly intense. Law schools have relied on the Law School Admission Test (LSAT) and an INDEX…

  17. The Terms and Tasks of "Open Admissions"

    Science.gov (United States)

    Scott, Robert A.

    1976-01-01

    Noting the need to define the terms used for policies which are changing the role of admissions offices, the author defines "open admissions" as "universal opportunity for post-secondary schooling" and points out changes in the core tasks of recruiting, selecting, counseling, and management of student records and data. (JT)

  18. Admissibility under extension of number fields

    CERN Document Server

    Danny, Neftin

    2009-01-01

    A finite group G is K-admissible if there is a G-crossed product K-division algebra. In this manuscript we study the behavior of admissibility under extension of number fields M/K. While tame admissibility goes down, wild admissibility goes up: if G is a wildly K-admissible p-group, for an odd prime p, having the Grunwald-Neukirch (GN) property over M, then G is also wildly M-admissible. We generalize this statement to odd order groups $G$ with the GN-property over M, provided that the extension locally avoids a certain list of 29 sensitive extensions. On the other hand, we give an example of a quadratic extension M/K with a 2-group which is wildly K-admissible, and not even M-preadmissible. We also consider eight possible notions of being M-admissible with respect to a subfield K, where the field of definition of the division algebra, the maximal subfield or the Galois group is asserted to be $K$. We provide counterexamples for each implication between these notions which is not proved in the text.

  19. Grade Inflation and Law School Admissions

    Science.gov (United States)

    Wongsurawat, Winai

    2008-01-01

    Purpose: The purpose of this paper is to evaluate the evidence on whether grade inflation has led to an increasing emphasis on standardized test scores as a criterion for law school admissions. Design/methodology/approach: Fit probabilistic models to admissions data for American law schools during the mid to late 1990s, a period during which…

  20. Alphabetical Order Effects in School Admissions

    Science.gov (United States)

    Jurajda, Štepán; Münich, Daniel

    2016-01-01

    If school admission committees use alphabetically sorted lists of applicants in their evaluations, one's position in the alphabet according to last name initial may be important in determining access to selective schools. Jurajda and Münich (2010) "Admission to Selective Schools, Alphabetically". "Economics of Education…

  1. Can advanced paramedics in the field diagnose patients and predict hospital admission?

    LENUS (Irish Health Repository)

    Cummins, Niamh Maria

    2013-02-13

    BACKGROUND: Accurate patient diagnosis in the prehospital environment is essential to initiate suitable care pathways. The advanced paramedic (AP) is a relatively recent role in Ireland, and refers to a prehospital practitioner with advanced life-support skills and training. OBJECTIVES: The objectives of this study were to compare the diagnostic decisions of APs with emergency medicine (EM) physicians, and to investigate if APs, as currently trained, can predict the requirement for hospital admission. METHODS: A prospective study was initiated, whereby each emergency ambulance call received via the statutory 999 system was recorded by the attending AP. The AP was asked to provide a clinical diagnosis for each patient, and to predict if hospital admission was required. The data was then cross-referenced with the working diagnosis of the receiving emergency physician and the hospital admission records. RESULTS: A total of 17 APs participated in the study, and 1369 emergency calls were recorded over a 6-month period. Cases where a general practitioner attended the scene were excluded from the concordance analysis. Concordance with the receiving emergency physician represents 70% (525\\/748) for all cases of AP diagnosis, and is mirrored with 70% (604\\/859) correct hospital admission predictions. CONCLUSIONS: AP diagnosis and admission prediction for emergency calls is similar to other emergency medical services systems despite the relative recency of the AP programme in Ireland. Recognition of non-concordance case types may identify priorities for AP education, and drive future AP practice in areas such as \\'treat and refer\\'.

  2. Business Intelligence Framework in Higher Education Admission Center (HEAC

    Directory of Open Access Journals (Sweden)

    Maryam Humaid Alwashahi

    2015-12-01

    Full Text Available - In recent year found that many organizations used Business Intelligence (BI in most of sectors in order to gather, consolidating, analyzing , and providing access to data to provide better decision-making to be faster than ever before by providing the right information to the right people at the right Time. This paper proposes Business Intelligence (BI framework for Higher Education Admission Centre (HEAC to simplify and integrate business critical data of a multi-schema database by using an Active database approach uses active rules, called EventCondition-Action (ECA rules. This paper explores the problem in HEAC, BI overview, BI component, BI features, BI framework, active DB.

  3. A Telephone Call

    Institute of Scientific and Technical Information of China (English)

    王晓兰

    2004-01-01

    At about two o'clock on a cold winter morning, a doctor drove seven miles in answer to a telephone call. On his coming the man who had called him in said, “Doctor, I don't have a sore throat, I don't cough.I have no pain either in the side or in the back, I'm not running a temperature, but still I feel that death is near.”

  4. Intervention to prevent further falls in older people who call an ambulance as a result of a fall: a protocol for the iPREFER randomised controlled trial

    Science.gov (United States)

    2013-01-01

    Background An increasing number of falls result in an emergency call and the subsequent dispatch of paramedics. In the absence of physical injury, abnormal physiological parameters or change in usual functional status, it could be argued that routine conveyance by ambulance to the Emergency Department (ED) is not the most effective or efficient use of resources. Further, it is likely that non-conveyed older fallers have the potential to benefit from timely access to fall risk assessment and intervention. The aim of this randomised controlled trial is to evaluate the effect of a timely and tailored falls assessment and management intervention on the number of subsequent falls and fall-related injuries for non-conveyed older fallers. Methods Community dwelling people aged 65 years or older who are not conveyed to the ED following a fall will be eligible to be visited at home by a research physiotherapist. Consenting participants will receive individualised intervention strategies based on risk factors identified at baseline. All pre-test measures will be assessed prior to randomisation. Post-test measures will be undertaken by a researcher blinded to group allocation 6 months post-baseline. Participants in the intervention group will receive individualised pro-active fall prevention strategies from the clinical researcher to ensure that risk factors are addressed adequately and interventions carried out. The primary outcome measure will be the number of falls recorded by a falls diary over a 12 month period. Secondary outcome measures assessed six months after baseline will include the subsequent use of medical and emergency services and uptake of recommendations. Data will be analysed using the intention-to-treat principle. Discussion As there is currently little evidence regarding the effectiveness or feasibility of alternate models of care following ambulance non-conveyance of older fallers, there is a need to explore assessment and intervention programs to

  5. Experimental Investigation of Performance, Flow Interactions and Rotor Forcing in Axial Partial Admission Turbines

    OpenAIRE

    Fridh, Jens

    2012-01-01

    The thesis comprises a collection of four papers with preceding summary and supplementary appendices. The core investigation solely is of experimental nature although reference and comparisons with numerical models will be addressed. The first admission stage in an industrial steam turbine is referred to as the control stage if partial admission is applied. In order to achieve high part load efficiency and a high control stage output it is routinely applied in industrial steam turbines used i...

  6. Weather, season, and daily stroke admissions in Hong Kong

    Science.gov (United States)

    Goggins, William B.; Woo, Jean; Ho, Suzanne; Chan, Emily Y. Y.; Chau, P. H.

    2012-09-01

    Previous studies examining daily temperature and stroke incidence have given conflicting results. We undertook this retrospective study of all stroke admissions in those aged 35 years old and above to Hong Kong public hospitals from 1999 through 2006 in order to better understand the effects of meteorological conditions on stroke risk in a subtropical setting. We used Poisson Generalized Additive Models with daily hemorrhagic (HS) and ischemic stroke (IS) counts separately as outcomes, and daily mean temperature, humidity, solar radiation, rainfall, air pressure, pollutants, flu consultation rates, day of week, holidays, time trend and seasonality as predictors. Lagged effects of temperature, humidity and pollutants were also considered. A total of 23,457 HS and 107,505 IS admissions were analyzed. Mean daily temperature had a strong, consistent, negative linear association with HS admissions over the range (8.2-31.8°C) observed. A 1°C lower average temperature over the same day and previous 4 days (lags 0-4) being associated with a 2.7% (95% CI: 2.0-3.4%, P < .0.0001) higher admission rate after controlling for other variables. This association was stronger among older subjects and females. Higher lag 0-4 average change in air pressure from previous day was modestly associated with higher HS risk. The association between IS and temperature was weaker and apparent only below 22°C, with a 1°C lower average temperature (lags 0-13) below this threshold being associated with a 1.6% (95% CI:1.0-2.2%, P < 0.0001) higher IS admission rate. Pollutant levels were not associated with HS or IS. Future studies should examine HS and IS risk separately.

  7. Should Universities lower Admission Requirements for Celebrities?

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    In recent years, many famous universities lower admission requirements for celebrities. More and more celebrities, especially sports stars, have been admitted to famous universities even without an entry examination. This phenomenon has become a subject of widespread controversy.

  8. 16 CFR 3.32 - Admissions.

    Science.gov (United States)

    2010-01-01

    ... ADJUDICATIVE PROCEEDINGS Discovery; Compulsory Process § 3.32 Admissions. (a) At any time after thirty (30... unless the party states that it has made reasonable inquiry and that the information known to or...

  9. Marketing in Admissions: The Information System Approach.

    Science.gov (United States)

    Wofford, O. Douglas; Timmerman, Ed

    1982-01-01

    A marketing information system approach for college admissions is outlined that includes objectives, information needs and sources, a data collection format, and information evaluation. Coordination with other institutional information systems is recommended. (MSE)

  10. Admissible Strategies in Semimartingale Portfolio Selection

    CERN Document Server

    Biagini, Sara

    2009-01-01

    The choice of admissible trading strategies in mathematical modelling of financial markets is a delicate issue, going back to Harrison and Kreps (1979). In the context of optimal portfolio selection with expected utility preferences this question has been a focus of considerable attention over the last twenty years. We propose a novel notion of admissibility that has many pleasant features -- admissibility is characterized purely under the objective measure $P$; the wealth of any admissible strategy is a supermartingale under all pricing measures; local boundedness of the price process is not required; neither strict monotonicity, strict concavity nor differentiability of the utility function are necessary; the definition encompasses both the classical mean-variance preferences and the monotone expected utility. For utility functions finite on the real line, our class represents a minimal set containing simple strategies which also contains the optimizer, under conditions that are substantially milder than th...

  11. Fields of definition for admissible groups

    CERN Document Server

    Neftin, Danny

    2011-01-01

    A finite group G is admissible over a field M if there is a division algebra whose center is M with a maximal subfield G-Galois over M. We consider nine possible notions of being admissible over M with respect to a subfield K of M, where the division algebra, the maximal subfield or the Galois group are asserted to be defined over K. We completely determine the logical implications between all variants.

  12. Immigration, moving house and psychiatric admissions.

    Science.gov (United States)

    Johansson, L M; Sundquist, J; Johansson, S E; Bergman, B

    1998-08-01

    This study was designed to elucidate psychiatric admission rates for native Swedes and foreign-born individuals during the period 1991-1994, when Sweden had a great influx of refugees. During the same period, and even earlier, psychiatric in-patient care had been reduced. Tests of differences between Swedes and foreign-born individuals in first psychiatric admission rates were performed using Poisson regressions, and the risk of a readmission was assessed using a proportional hazard model. Foreign-born individuals and native Swedes, both males and females, showed a similar admission pattern with regard to the number of admissions. Foreign-born males under 55 years of age and foreign-born females under 35 years of age had significantly higher admission rates than native Swedes. In total, native Swedes, both males and females, were hospitalized for a significantly longer period than the foreign-born subjects. About 43% of the patients were readmitted. The risk of a readmission was significantly increased among those with a high rate of internal migration. The high admission rates for young foreign-born individuals might be explained by a high incidence of mental illness owing to the trauma of being violently forced to migrate, acculturation difficulties, or unsatisfactory social circumstances such as high unemployment. The shorter hospitalization time could be due to undertreatment or less serious mental illness. PMID:9718235

  13. CALLING AQUARIUM LOVERS...

    CERN Multimedia

    2002-01-01

    CERN's anemones will soon be orphans. We are looking for someone willing to look after the aquarium in the main building, for one year. If you are interested, or if you would like more information, please call 73830. (The anemones living in the aquarium thank you in anticipation.)

  14. Analysis of Completion of Call with on-off Data Source in Wireless Networks

    Institute of Scientific and Technical Information of China (English)

    XUAN Xiao-ying; SHI Bing-xin; ZOU Ling

    2004-01-01

    In wireless network, call completion probability accounts for users' satisfaction since the admitted ongoing call may be interrupted during hand-off process or even stay in the same cell when dynamically allocating resource to calls because of the loss of resource. We focus on the relationship between call's completion probability and these interruptions and develop an analytical relationship model for homogeneous cellular networks based on probability analysis. Then assuming call's data source is modeled by on-off traffic model, a two dimensional Markov process is established to compute these blocking and dropping probabilities for call's completion probability. The impacts of different new call arrival rate, call's traffic characteristic, user's mobility, call's holding time and call's admission threshold on call's completion are evaluated and compared through numerical examples. These results show that call's completion reaches its maximum value if making no difference between hand-off call and new call in the case of light traffic load. But some resource should be reserved for the hand-off call in high traffic scenario. The analytical model provides a basis for helping to set the call admission threshold.

  15. Calling Dunbar's Numbers

    CERN Document Server

    MacCarron, Pádraig; Dunbar, Robin

    2016-01-01

    The social brain hypothesis predicts that humans have an average of about 150 relationships at any given time. Within this 150, there are layers of friends of an ego, where the number of friends in a layer increases as the emotional closeness decreases. Here we analyse a mobile phone dataset, firstly, to ascertain whether layers of friends can be identified based on call frequency. We then apply different clustering algorithms to break the call frequency of egos into clusters and compare the number of alters in each cluster with the layer size predicted by the social brain hypothesis. In this dataset we find strong evidence for the existence of a layered structure. The clustering yields results that match well with previous studies for the innermost and outermost layers, but for layers in between we observe large variability.

  16. 45 CFR 84.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Admissions and recruitment. 84.42 Section 84.42... Education § 84.42 Admissions and recruitment. (a) General. Qualified handicapped persons may not, on the basis of handicap, be denied admission or be subjected to discrimination in admission or recruitment...

  17. A Call for Justice

    OpenAIRE

    Marques-Silva, Joao; Brahmachari, Debahuti; Sakallah, Karem; Lynce, Ines

    2015-01-01

    Abstract A new development can be identified within the civil society in Malaysia. A development that has resulted in a general call for justice, voiced through coalition groups that cut across categories of affiliation. This development is triggered by an increasing inculcation of Islamic values into the political system, which has interfered with the understanding of Malaysia as a country that can provide a framework for coexistence within a multicultural society. This thesis seeks ...

  18. Major Research Efforts of the Law School Admission Council. Law School Admission Research.

    Science.gov (United States)

    Hart, Frederick M.; Evans, Franklin R.

    Research conducted by the Law School Admission Council since the development of the Law School Admission Test (LSAT) in 1948 is described. An overview of the research topics is provided, and relevant published reports are cited in 61 footnotes. The following topics of study are discussed: (1) use and validity of traditional predictors of law…

  19. The relationship between asthma admission rates, routes of admission, and socioeconomic deprivation.

    Science.gov (United States)

    Watson, J P; Cowen, P; Lewis, R A

    1996-10-01

    This study aimed to explore the relationship between hospital admissions for asthma and socioeconomic deprivation. A retrospective study examined one year of hospital admissions for asthma in the West Midlands region of England (n = 10,044), and in one of the region's wealthier districts, Worcester (n = 251). Age standardized admission ratios (SARs) for asthma, and the routes of hospital admission, were compared with the Towns- end Deprivation Index for the place of residence. Asthma SAR was strongly associated with deprivation as measured by the Towns end Index for the district of residence (Spearman rank correlation coefficient rho = 0.65; p = 0.004). Asthma admission rates for all age groups, except those aged over 65 yrs, were higher in poorer districts. A significantly greater proportion of emergency admissions in poorer districts came via Accident and Emergency departments, rather than general practitioner referrals (rho = 0.76; p Townsend Index for the ward of residence (rho = 0.39; p < 0.001). This remained significant after excluding repeat admissions (rho = 0.45; p < 0.001). We conclude that asthma admissions are strongly associated with deprivation in the community. Differences in the health care received during acute exacerbations by asthma patients from different economic backgrounds is likely to be an important factor in this relationship. PMID:8902471

  20. The Predictive Validity of using Admissions Testing and Multiple Mini-interviews in Undergraduate University Admissions

    DEFF Research Database (Denmark)

    Makransky, Guido; Havmose, Philip; Vang, Maria Louison;

    2016-01-01

    The aim of this study was to evaluate the predictive validity of a two-step admissions procedure that included a cognitive ability test followed by multiple mini-interviews (MMI) used to assess non-cognitive skills compared to a grade-based admissions relative to subsequent drop-out rates and aca...

  1. Assessing Practical Intelligence in Business School Admissions: A Supplement to the Graduate Management Admissions Test

    Science.gov (United States)

    Hedlund, Jennifer; Wilt, Jeanne M.; Nebel, Kristina L.; Ashford, Susan J.; Sternberg, Robert J.

    2006-01-01

    The Graduate Management Admission Test (GMAT) is the most widely used measure of managerial potential in MBA admissions. GMAT scores, although predictive of grades in business school, leave much of the variance in graduate school performance unexplained. The GMAT also produces disparities in test scores between groups, generating the potential for…

  2. How Dolphins Call

    Institute of Scientific and Technical Information of China (English)

    马加芬

    2007-01-01

    <正>与人类一样,海豚能通过声音相互称呼"名字"。A high-pitched"wee-o-wee-o-wee-o-wee"whistle might not soundlike much to you,but it6s exactly how a dolphin might introduce itself.Because sight is limited in the ocean,dolphins create individual"name"calls to communicate their whereabouts to friends and families.But it6snot as simple as just recognizing a voice,

  3. A call for surveys

    DEFF Research Database (Denmark)

    Bernstein, Philip A.; Jensen, Christian S.; Tan, Kian-Lee

    2012-01-01

    The database field is experiencing an increasing need for survey papers. We call on more researchers to set aside time for this important writing activity. The database field is growing in population, scope of topics covered, and the number of papers published. Each year, thousands of new papers ...... enter the database research literature. As a result, it has become a daunting task to maintain a basic understanding of more than a few major areas of database technology. Even relatively narrow topics have dozens of papers, making it hard for ...

  4. To be called upon

    DEFF Research Database (Denmark)

    Kublitz, Anja

    2015-01-01

    When Danish Muslims explain what made them decide to travel to the Middle East and take up arms in the wake of the Arab Spring, they say that they were called upon. Displayed on videos on social media, women and sometimes children begged them to come to their rescue. In light of some...... of the responses to the Arab spring among Danish Muslims, this paper will offer some preliminary reflections on how we can understand ‘the mass’ and an ‘intimacy of the mass’ when the mass is no longer a crowd. According to Marx the mass grows quantitatively from the local to the global, but what happens...

  5. Heed the Calls

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    @@ THE bombing of Libya by some of the world's major powers, including France, the United States and Britain brought a new dimension to the protests that have washed over North Africa and the Middle East in the past months.Following the UN Security Council passing the imposition of a no-fly zone over Libyan air-space, a move supported by Nigeria, South Africa and Gabon, air and sea strikes pounded Muammar Gadhafi's strongholds.The AU called for an immediate stop to hostilities on both sides.

  6. Heed the Calls

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    THE bombing of Libya by some of the world’s major powers,including France, the United States and Britain brought a new dimension to the protests that have washed over North Africa and the Middle East in the past months.Following the UN Security Council passing the imposition of a no-fly zone over Libyan air-space,a move supported by Nigeria,South Africa and Gabon,air and sea strikes pounded Muammar Gadhafi’s strongholds.The AU called for an immediate stop to hostilities

  7. Admission criteria and diversity in medical school

    DEFF Research Database (Denmark)

    O'Neill, Lotte; Vonsild, Maria; Wallstedt, Birgitta;

    2013-01-01

    Introduction: The underrepresentation of students from lower socioeconomic backgrounds in medical education is an important social issue. There is currently little evidence about whether changes in admission strategy could increase the diversity of medical students. Denmark introduced an “attribute......-based” admission track to make it easier for students who may not be eligible for admission through the “grade-based” track, to be admitted on the basis of attributes other than academic performance. The aim of this research was to examine whether there were significant differences in the social composition...... of students admitted via the two tracks between the years 2002-2007. Method: This prospective cohort study included 1074 medical students admitted between the years 2002-2007 to the University of Southern Denmark (USD) medical school. Of these, 454 were admitted by grade-based selection and 620 were selected...

  8. The therapeutic relationship after psychiatric admission.

    LENUS (Irish Health Repository)

    Roche, Eric

    2014-03-01

    The therapeutic relationship is one of the most central and important factors in the treatment of mental health disorders. A better therapeutic relationship is associated with service engagement, medication adherence, and satisfaction with services. This study aimed to compare the demographic and clinical factors associated with the therapeutic relationship in voluntarily and involuntarily admitted psychiatric service users. We found that individuals who had been admitted involuntarily, who had a diagnosis of a psychotic disorder, and who reported higher levels of perceived pressures on admission were more likely to have a poorer therapeutic relationship with their consultant psychiatrist. Greater levels of insight and treatment satisfaction, together with higher levels of procedural justice experienced on admission, were associated with a better therapeutic relationship. We found that the level of perceived coercion on admission was not related to the therapeutic relationship. Targeted interventions to improve the therapeutic relationship, particularly for involuntarily admitted service users, are discussed.

  9. Applying Pedagogical Principles to CALL Courseware Development.

    Science.gov (United States)

    Wyatt, David H.

    This paper on the application of principles to computer-assisted language learning (CALL) first clarifies the the relationships between the capabilities of the computer (and computer-controlled technology) and the main approaches to second language learning. Fourteen common types of CALL programs are briefly reviewed. A "relational" classification…

  10. An Island Called Cuba

    Directory of Open Access Journals (Sweden)

    Jean Stubbs

    2011-06-01

    Full Text Available Review of: An Island Called Home: Returning to Jewish Cuba. Ruth Behar, photographs by Humberto Mayol. New Brunswick NJ: Rutgers University Press, 2007. xiii + 297 pp. (Cloth US$ 29.95 Fidel Castro: My Life: A Spoken Autobiography. Fidel Castro & Ignacio Ramonet. New York: Scribner/Simon & Schuster, 2008. vii + 724 pp. (Paper US$ 22.00, e-book US$ 14.99 Cuba: What Everyone Needs to Know. Julia E. Sweig. New York: Oxford University Press, 2009. xiv + 279 pp. (Paper US$ 16.95 [First paragraph] These three ostensibly very different books tell a compelling story of each author’s approach, as much as the subject matter itself. Fidel Castro: My Life: A Spoken Autobiography is based on a series of long interviews granted by the then-president of Cuba, Fidel Castro, to Spanish-Franco journalist Ignacio Ramonet. Cuba: What Everyone Needs to Know, by U.S. political analyst Julia Sweig, is one of a set country series, and, like Ramonet’s, presented in question/answer format. An Island Called Home: Returning to Jewish Cuba, with a narrative by Cuban-American anthropologist Ruth Behar and photographs by Cuban photographer Humberto Mayol, is a retrospective/introspective account of the Jewish presence in Cuba. While from Ramonet and Sweig we learn much about the revolutionary project, Behar and Mayol convey the lived experience of the small Jewish community against that backdrop.

  11. Call for volunteers

    CERN Multimedia

    2008-01-01

    CERN is calling for volunteers from all members of the Laboratory for organizing the two exceptional Open days.CERN is calling for volunteers from all members of the Laboratory’s personnel to help with the organisation of these two exceptional Open Days, for the visits of CERN personnel and their families on the Saturday and above all for the major public Open Day on the Sunday. As for the 50th anniversary in 2004, the success of the Open Days will depend on a large number of volunteers. All those working for CERN as well as retired members of the personnel can contribute to making this event a success. Many guides will be needed at the LHC points, for the activities at the surface and to man the reception and information points. The aim of these major Open Days is to give the local populations the opportunity to discover the fruits of almost 20 years of work carried out at CERN. We are hoping for some 2000 volunteers for the two Open Days, on the Saturday from 9 a.m. to ...

  12. MEDICAL SERVICE - URGENT CALLS

    CERN Multimedia

    Service Médical

    2000-01-01

    IN URGENT NEED OF A DOCTOR GENEVA: EMERGENCY SERVICES GENEVA AND VAUD 144 FIRE BRIGADE 118 POLICE 117 CERN FIREMEN 767-44-44 ANTI-POISONS CENTRE Open 24h/24h 01-251-51-51 Patient not fit to be moved, call family doctor, or: GP AT HOME: Open 24h/24h 748-49-50 AMG- Association Of Geneva Doctors: Emergency Doctors at home 07h-23h 322 20 20 Patient fit to be moved: HOPITAL CANTONAL CENTRAL 24 Micheli-du-Crest 372-33-11 ou 382-33-11 EMERGENCIES 382-33-11 ou 372-33-11 CHILDREN'S HOSPITAL 6 rue Willy-Donzé 372-33-11 MATERNITY 32 bvd.de la Cluse 382-68-16 ou 382-33-11 OPHTHALMOLOGY 22 Alcide Jentzer 382-33-11 ou 372-33-11 MEDICAL CENTRE CORNAVIN 1-3 rue du Jura 345 45 50 HOPITAL DE LA TOUR Meyrin 719-61-11 EMERGENCIES 719-61-11 CHILDREN'S EMERGENCIES 719-61-00 LA TOUR MEDICAL CENTRE 719-74-00 European Emergency Call 112   FRANCE: EMERGENCY SERVICES 15 FIRE BRIGADE 18 POLICE 17 CERN FIREMEN AT HOME 00-41-22-767-44-44 ...

  13. Bernoulli measure of complex admissible kneading sequences

    CERN Document Server

    Bruin, Henk

    2012-01-01

    Iterated quadratic polynomials give rise to a rich collection of different dynamical systems that are parametrized by a simple complex parameter $c$. The different dynamical features are encoded by the \\emph{kneading sequence} which is an infinite sequence over $\\{0,\\1\\}$. Not every such sequence actually occurs in complex dynamics. The set of admissible kneading sequences was described by Milnor and Thurston for real quadratic polynomials, and by the authors in the complex case. We prove that the set of admissible kneading sequences has positive Bernoulli measure within the set of sequences over $\\{0,\\1\\}$.

  14. Entropy Production and Admissibility of Shocks

    Institute of Scientific and Technical Information of China (English)

    Tai-Ping Liu; Tommaso Ruggeri

    2003-01-01

    In shock wave theory there are two considerations in selecting the physically relevant shock waves.There is the admissibility criterion for the well-posedness of hyperbolic conservation laws. Another consideration concerns the entropy production across the shocks. The latter is natural from the physical point of view, but is not sufficient in its straightforward formulation, if the system is not genuinely nonlinear. In this paper we propose the principles of increasing entropy production and that of the superposition of shocks. These principles are shown to be equivalent to the admissibility criterion.

  15. Primary Path Reservation Using Enhanced Slot Assignment in TDMA for Session Admission

    Directory of Open Access Journals (Sweden)

    Suresh Koneri Chandrasekaran

    2015-01-01

    Full Text Available Mobile ad hoc networks (MANET is a self-organized collection of nodes that communicates without any infrastructure. Providing quality of service (QoS in such networks is a competitive task due to unreliable wireless link, mobility, lack of centralized coordination, and channel contention. The success of many real time applications is purely based on the QoS, which can be achieved by quality aware routing (QAR and admission control (AC. Recently proposed QoS mechanisms do focus completely on either reservation or admission control but are not better enough. In MANET, high mobility causes frequent path break due to the fact that every time the source node must find the route. In such cases the QoS session is affected. To admit a QoS session, admission control protocols must ensure the bandwidth of the relaying path before transmission starts; reservation of such bandwidth noticeably improves the admission control performance. Many TDMA based reservation mechanisms are proposed but need some improvement over slot reservation procedures. In order to overcome this specific issue, we propose a framework—PRAC (primary path reservation admission control protocol, which achieves improved QoS by making use of backup route combined with resource reservation. A network topology has been simulated and our approach proves to be a mechanism that admits the session effectively.

  16. Differential Prediction Generalization in College Admissions Testing

    Science.gov (United States)

    Aguinis, Herman; Culpepper, Steven A.; Pierce, Charles A.

    2016-01-01

    We introduce the concept of "differential prediction generalization" in the context of college admissions testing. Specifically, we assess the extent to which predicted first-year college grade point average (GPA) based on high-school grade point average (HSGPA) and SAT scores depends on a student's ethnicity and gender and whether this…

  17. Virginia Tech's Undergraduate Admissions Director Resigns

    OpenAIRE

    Cox, Clara B.

    2003-01-01

    Karen E. Torgersen, director of undergraduate admissions at Virginia Tech since 1997, has submitted her resignation from the university effective Dec. 31 to become associate executive director of U21pedagogica Limited (Pedagogica), a new international educational enterprise in Charlottesville, Va.

  18. IMPROVEMENT OF ORGANIZATIONAL STRUCTURES AND CONTROLLING OF PERSONNEL IN COMPANIES OF THE TYPE CALLED "RESEARCH INSTITUTE" IN THE ROCKET AND THE SPACE INDUSTRY

    Directory of Open Access Journals (Sweden)

    Mukhin V. V.

    2015-05-01

    Full Text Available Improvement of the organizational structures can increase the efficiency of enterprises. Controlling of personnel in companies such as "Research Institute" is a tool to support personnel decisions; it contributes to the strategic goals and tactical objectives. This article describes the main types of organizational structures, their properties, sociometric research as a tool for management, the stages of implementation of model of controlling of personnel in human resource management system for companies such as "Research Institute". Controlling of personnel is in regulation of HR processes, benchmarking, monitoring the implementation of the goals, taking into account the costs of implementing improved management systems, etc. It aims to determine the quality, efficiency and optimality of specific mechanisms, technologies and methods for the implementation of the HR function. Objectively, the volume of realization of the HR function depends on the presence of a certain quantities of material, labor, financial and other resources, on the objectives of the enterprise at different stages of the life cycle, as well as the number and qualifications of personnel. The quality of realization of the HR function depends on the level of its top-management's understanding of the importance of human resource management in the enterprise, as well as of the skill level of middle management. Controlling of HR function allows us to create an information base for effective management decisions that can help us to optimize the system of personnel management in the circumstances of the market environment, which is a necessary basis for the successful development of enterprises working in the field of high technology products and services

  19. Routine perineal shaving on admission in labour.

    Science.gov (United States)

    Basevi, Vittorio; Lavender, Tina

    2014-01-01

    BackgroundPubic or perineal shaving is a procedure performed before birth in order to lessen the risk of infection if there is a spontaneous perinealtear or if an episiotomy is performed.ObjectivesTo assess the effects of routine perineal shaving before birth onmaternal and neonatal outcomes, according to the best available evidence.Search methodsWe searched the Cochrane Pregnancy and Childbirth Group’s Trials Register (12 June 2014).Selection criteriaAll controlled trials (including quasi-randomised) that compare perineal shaving versus no perineal shaving.Data collection and analysisTwo review authors independently assessed all potential studies for inclusion, assessed risk of bias and extracted the data using apredesigned form. Data were checked for accuracy.Main resultsThree randomised controlled trials (1039 women) published between 1922 and 2005 fulfilled the prespecified criteria. In the earliesttrial, 389 women were alternately allocated to receive either skin preparation and perineal shaving or clipping of vulval hair only. In thesecond trial, which included 150 participants, perineal shaving was compared with the cutting of long hairs for procedures only. In thethird and most recent trial, 500 women were randomly allocated to shaving of perineal area or cutting of perineal hair. The primaryoutcome for all three trials was maternal febrile morbidity; no differences were found (risk ratio (RR) 1.14, 95% confidence interval(CI) 0.73 to 1.76). No differences were found in terms of perineal wound infection (RR 1.47, 95% CI 0.80 to 2.70) and perinealwound dehiscence (RR 0.33, 95% CI 0.01 to 8.00) in the most recent trial involving 500 women, which was the only trial to assessthese outcomes. In the smallest trial, fewer women who had not been shaved had Gram-negative bacterial colonisation compared withwomen who had been shaved (RR 0.83, 95% CI 0.70 to 0.98). There were no instances of neonatal infection in either group in theone trial that reported this

  20. The Design of Session Control Flow for Call Center Seat Based on SIP%基于SIP的呼叫中心坐席会话控制流程设计

    Institute of Scientific and Technical Information of China (English)

    邱成杰; 景春峰; 李志强; 吉利锋; 姜元建; 李平

    2011-01-01

    The development trend of call center for power customer service is to integrative multimedia call center which has three features: unified management, data set and distributed seats. This paper introduces the SIP protocol which is used widely in the VOIP system for signaling control, and then discusses the architecture of call center based on VIOP technical architecture. At last it gives the designment for session control flow based on SIP.%电力客户服务呼叫中心的发展趋势是管理集中、数据集中、坐席分布的“一体化多媒体呼叫中心”。文章介绍了当前VOIP系统中最重要的信令协议SIP,基于VOIP技术架构的呼叫中心体系结构,并对SIP坐席主要的会话控制流程进行了分析设计。

  1. EFFICACY OF ADMISSION CARDIOTOCOGRAPHY (ADMISSION T EST TO PREDICT OBSTETRIC OUTCOME

    Directory of Open Access Journals (Sweden)

    Dwarakanath

    2013-01-01

    Full Text Available ABSTRACT: OBJECTIVE: To determine the efficacy of admission test on perin atal outcome and levels of obstetric interventions. METHODS: Prospective study on 200 pregnant women at admission by cardiotocography and assess th e perinatal outcome and obstetric interventions. RESULTS: Incidence of reactive trace was 69%, suspicious 24% and ominous 7%. Out of 200 cases 159(80% had vaginal delivery, 28( 14% had LSCS and 13(6% had instrumental delivery. There was increased incidenc e of operative delivery and NICU admissions in suspicious and ominous tracings. This study has a sensitivity of 76% and positive predictive value(PPV of 96%, specificity of 77% and negative predictive value(NPV of 33% for a reactive test. CONCLUSION: Admission test is an effective predictive technique to detect pre- existing fetal distress and plan early intervention to prevent adverse perinatal outcome.

  2. Coarse Particulate Air Pollution Associated with Increased Risk of Hospital Admissions for Respiratory Diseases in a Tropical City, Kaohsiung, Taiwan.

    Science.gov (United States)

    Cheng, Meng-Hsuan; Chiu, Hui-Fen; Yang, Chun-Yuh

    2015-10-01

    This study was undertaken to determine whether there was an association between coarse particles (PM₂.₅-₁₀) levels and frequency of hospital admissions for respiratory diseases (RD) in Kaohsiung, Taiwan. Hospital admissions for RD including chronic obstructive pulmonary disease (COPD), asthma, and pneumonia, and ambient air pollution data levels for Kaohsiung were obtained for the period from 2006 to 2010. The relative risk of hospital admissions for RD was estimated using a case-crossover approach, controlling for weather variables, day of the week, seasonality, and long-term time trends. For the single pollutant model (without adjustment for other pollutants), increased rate of admissions for RD were significantly associated with higher coarse PM levels only on cool days (carbon monoxide, or ozone on cool days. This study provides evidence that higher levels of PM₂.₅-₁₀ enhance the risk of hospital admissions for RD on cool days. PMID:26501308

  3. EFFICACY OF ADMISSION CARDIOTOCOGRAPHY (ADMISSION T EST) TO PREDICT OBSTETRIC OUTCOME

    OpenAIRE

    Dwarakanath; Lakshmikantha; Chaitra

    2013-01-01

    ABSTRACT: OBJECTIVE: To determine the efficacy of admission test on perin atal outcome and levels of obstetric interventions. METHODS: Prospective study on 200 pregnant women at admission by cardiotocography and assess th e perinatal outcome and obstetric interventions. RESULTS: Incidence of reactive trace was 69%, suspicious 24% and ominous 7%. Out of 200 cases 159(80%) had vaginal delivery, 28( 14%) had LSCS and 13(6%) had instrumental delivery. ...

  4. Coarse Particulate Air Pollution Associated with Increased Risk of Hospital Admissions for Respiratory Diseases in a Tropical City, Kaohsiung, Taiwan

    Directory of Open Access Journals (Sweden)

    Meng-Hsuan Cheng

    2015-10-01

    Full Text Available This study was undertaken to determine whether there was an association between coarse particles (PM2.5–10 levels and frequency of hospital admissions for respiratory diseases (RD in Kaohsiung, Taiwan. Hospital admissions for RD including chronic obstructive pulmonary disease (COPD, asthma, and pneumonia, and ambient air pollution data levels for Kaohsiung were obtained for the period from 2006 to 2010. The relative risk of hospital admissions for RD was estimated using a case-crossover approach, controlling for weather variables, day of the week, seasonality, and long-term time trends. For the single pollutant model (without adjustment for other pollutants, increased rate of admissions for RD were significantly associated with higher coarse PM levels only on cool days (<25 °C, with a 10 µg/m3 elevation in PM2.5–10 concentrations associated with a 3% (95% CI = 1%–5% rise in COPD admissions, 4% (95% CI = 1%–7% increase in asthma admissions, and 3% (95% CI = 2%–4% rise in pneumonia admissions. No significant associations were found between coarse particle levels and the number of hospital admissions for RD on warm days. In the two-pollutant models, PM2.5–10 levels remained significantly correlated with higher rate of RD admissions even controlling for sulfur dioxide, nitrogen dioxide, carbon monoxide, or ozone on cool days. This study provides evidence that higher levels of PM2.5–10 enhance the risk of hospital admissions for RD on cool days.

  5. Adaptive Slot Allocation And Bandwidth Sharing For Prioritized Handoff Calls In Mobile Netwoks

    CERN Document Server

    Malathy, S; Murugan, K; Lokesh, S

    2010-01-01

    Mobility management and bandwidth management are two major research issues in a cellular mobile network. Mobility management consists of two basic components: location management and handoff management. To Provide QoS to the users Handoff is a key element in wireless cellular networks. It is often initiated either by crossing a cell boundary or by deterioration in the quality of signal in the current channel. In this paper, a new admission control policy for cellular mobile network is being proposed. Two important QoS parameter in cellular networks are Call Dropping Probability (CDP) and Handoff Dropping Probability (HDP). CDP represents the probability that a call is dropped due to a handoff failure. HDP represents the probability of a handoff failure due to insufficient available resources in the target cell. Most of the algorithms try to limit the HDP to some target maximum but not CDP. In this paper, we show that when HDP is controlled, the CDP is also controlled to a minimum extent while maintaining lowe...

  6. Hospital Admissions from Nursing Homes: Rates and Reasons

    OpenAIRE

    Geir Egil Eide; Kristian Jansen; Anders Grimsmo; Kjell Krüger; Jonn Terje Geitung

    2011-01-01

    Hospital admissions from nursing homes have not previously been investigated in Norway. During 12 months all hospital admissions (acute and elective) from 32 nursing homes in Bergen were recorded via the Norwegian ambulance register. The principal diagnosis made during the stay, length of stay, and the ward were sourced from the hospital's data register and data were merged. Altogether 1,311 hospital admissions were recorded during the 12 months. Admissions from nursing homes made up 6.1% of ...

  7. Making school admissions fairer? 'Quasi-regulation' under New Labour

    OpenAIRE

    West, Anne; Ingram, Dabney

    2001-01-01

    This paper examines reforms to secondary school admissions in England since 1997. In particular, it focuses on the new ‘quasi-regulation’ that has been introduced to make the process of admissions fairer and more transparent. Our analysis reveals that the quasi-regulation has had some impact on the process of admissions to secondary schools. In a number of authorities with highly developed secondary school quasi-markets, the policy changes have resulted in some inequitable admissions criteria...

  8. Identifying patients at risk of emergency admission for colorectal cancer

    OpenAIRE

    Wallace, D.; Walker, K.; Kuryba, A; Finan, P; Scott, N.; Van Der Meulen, J.

    2014-01-01

    Background: Patients whose colorectal cancer is treated after an emergency admission tend to have late-stage cancer and a poor prognosis. We identified risk factors for an emergency admission by linking data from the National Bowel Cancer Audit (NBCA) and the English Hospital Episode Statistics (HES), an administrative database of all admissions to English National Health Service hospitals, which includes data on mode of admission. Methods: We identified all adults included in the NBCA with a...

  9. 45 CFR 605.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Admissions and recruitment. 605.42 Section 605.42... Postsecondary Education § 605.42 Admissions and recruitment. (a) General. Qualified handicapped persons may not... recruitment by a recipient to which this subpart applies. (b) Admissions. In administering its...

  10. Criteria Use and Importance in Independent Secondary School Admissions

    Science.gov (United States)

    Schuster, Shannan Boyle

    2009-01-01

    The purpose of this study was threefold: first, to determine the use of specified admission criteria in the independent school admission process; second, to determine admission directors' perceptions of the importance of selected criteria; and third, to determine the nature of the relationship between selected independent measures and the use of…

  11. Equity of Access. New Approaches to Minority Admissions

    Science.gov (United States)

    Bingham, Rebecca Saady

    1978-01-01

    One new approach to the admission of minorities to medical schools is that of the Simulated Minority Admission Exercises (SMAE). It sensitizes admission committee members to the different backgrounds of minority applicants and teaches them to evaluate them more effectively. (Author/AM)

  12. Pursuing Equity in and through Teacher Education Program Admissions

    Science.gov (United States)

    Childs, Ruth A.; Broad, Kathryn; Gallagher-Mackay, Kelly; Sher, Yael; Escayg, Kerry-Ann; McGrath, Christopher

    2011-01-01

    This case study investigated equity in teacher education admissions. Through document analysis and structured interviews with ten past or current members of the admissions committee in a large initial teacher education program in Ontario, we developed an understanding of equity in teacher education admissions as encompassing two foci: equity in…

  13. Per-flow Admission Control with Adaptive Reservation of Bandwidth and Multiple QoS Support in EDCA of IEEE 802.11e Based on Cross-layer Design%基于跨层的自适应预留带宽和多重QoS保证的EDCA流接纳控制

    Institute of Scientific and Technical Information of China (English)

    曾菊玲; 蒋砺思

    2012-01-01

    提出了基于跨层的自适应带宽预留和多重QoS保证的802.11eEDCA分布式流接纳控制.首先自适应分配各站点OFDM子载波比特以最大化信道容量,并将比特率跨层传送到MAC层.基于此,提出了基于分布式测量的动态带宽预留机制,使预留带宽自适应各用户信道特点和业务特征;提出了半模式化的中心控制的剩余因子估计方法,从而克服了直接测量的不准确性和分布式估计的局部性,并降低了计算复杂度;提出了基于协议模型的带宽和碰撞率双重接纳标准,使多重QoS参数同时得到保证.通过这些措施得到自上至下的自适应接纳控制.仿真表明,提出的接纳控制机制能较大地提高资源利用率,更好地保证业务质量.%A novel dynamic distributed admission control with adaptive reservation of bandwidth and multiple QoS support of EDCA(enhanced distributed channel access) in IEEE802. lie based on cross-layer was presented. In this mechanism, the bits of the subcarrier of OFDM in the station are allocated to obtain the maximum channel capacity subjected to the maximum power at first and the bit rate is transmitted to the medium access control layer at the same time. By means of that,a dynamic reservation of the bandwidth was presented based on the distributed measurement, which a-dapts tb the characteristics of the channel and the service. And an estimation of the surplus factor by center control half-based on model was presented, which overcomes the un-accuracy resulted by directed measuring and locality resulted by distributed estimation. The relationship between the service's parameters and the collision probability was obtained and the double admission criteria of the bandwidth and the collision probability was suggested to support the multiple QoS such as bandwidth and delay as well as error ratio of the frame. All above suggestions structure an adaptive admission control from the upper layer to the lower layer

  14. Nursing Home Admission: When, Why, Where?

    OpenAIRE

    Bergman, H; Clarfield, A M

    1985-01-01

    The decision to institutionalize older patients puts stress on both them and their families. This option should be carefully considered and alternatives explored before a final decision is made. The physician must seek and treat reversible diseases, and try to optimize the patient's functional status. Once the decision to institutionalize is made, careful preparation and follow-up of both family and patient must occur in the pre-, peri-, and post-admission periods. In this way, the physician ...

  15. THE OBJECT OF THE ADMISSION OF GUILT

    Directory of Open Access Journals (Sweden)

    Constantin NEDELCU

    2015-07-01

    Full Text Available This paper aims at studying how elements of negotiated justice specific to common law systems entered into the Romanian criminal procedural law system. It particularly deals with the admission of guilt and about one of its most controversial aspects – the object of recognition. The research concludes that what is recognized within this simplified procedure it is the deed and not its legal classification given by the criminal prosecution bodies.

  16. Perceived coercion in voluntary hospital admission.

    LENUS (Irish Health Repository)

    O'Donoghue, Brian

    2014-01-30

    The legal status of service users admitted to psychiatric wards is not synonymous with the level of coercion that they can perceive during the admission. This study aimed to identify and describe the proportion of individuals who were admitted voluntarily but experienced levels of perceived coercion comparable to those admitted involuntarily. Individuals admitted voluntarily and involuntarily to three psychiatric hospitals were interviewed using the MacArthur Admission Experience Interview and the Structured Clinical Interview for DSM-IV diagnoses. One hundered sixty-one individuals were interviewed and 22% of the voluntarily admitted service users had levels of perceived coercion similar to that of the majority of involuntarily admitted service users. Voluntarily admitted service users who experienced high levels of perceived coercion were more likely to have more severe psychotic symptoms, have experienced more negative pressures and less procedural justices on admission. Individuals brought to hospital under mental health legislation but who subsequently agreed to be admitted voluntarily and those treated on a secure ward also reported higher levels of perceived coercion. It needs to be ensured that if any service user, whether voluntary or involuntary, experiences treatment pressures or coercion that there is sufficient oversight of the practice, to ensure that individual\\'s rights are respected.

  17. Glycated hemoglobin A: A predictor of outcome in trauma admissions to intensive care unit

    Directory of Open Access Journals (Sweden)

    Karen Ruby Lionel

    2014-01-01

    Full Text Available Background and Aim: Although large studies have demonstrated the association between hyperglycemia and adverse intensive care unit (ICU outcomes, it is yet unclear which subset of patients benefit from tight sugar control in ICU. Recent evidence suggests that stress induced hyperglycemia (SIH and co-incidentally detected diabetes mellitus are different phenomena with different prognoses. Differentiating SIH from diabetic hyperglycemia is challenging in ICU settings. We followed a cohort of trauma patients admitted to a surgical intensive care unit (SICU to evaluate if initial glycated hemoglobin A (HbA 1 c level predicts the outcome of admission. Materials and Methods: A cohort of 120 consecutive admissions to SICU following trauma were recruited and admission blood sugar and HbA 1 c were measured. Outcomes were prospectively measured by blinded ICU doctors. A logistic regression model was developed to assess if HbA 1 c predicts poor outcomes in these settings. Results: Nearly 24% of the participants had HbA 1 c ≥ 6. Those with HbA 1 c ≥ 6 had 3.14 times greater risk of poor outcome at the end of hospital stay when compared to those with HbA 1 c < 6 and this risk increased to an odds ratio of 4.57 on adjusting for other significant predictors: Acute Physiology and Chronic Health Evaluation II, injury severity score, admission blood sugar and age at admission. Conclusions: Substantial proportion of trauma admissions has underlying diabetes. HbA 1 c, a measure of pre admission glycaemic status is an important predictor of ICU outcome in trauma patients.

  18. Of special humanitarian concern: U.S. refugee admissions since passage of the Refugee Act.

    Science.gov (United States)

    Gallagher, D; Forbes, S; Fagan, P W

    1986-01-01

    The Refugee Act of 1980 is the 1st comprehensive legislation on the admission of refugees to the US; in the 5+ years since its enactment, over 500,000 refugees from more than 25 countries have been admitted to the US. This report assesses the effectiveness of the law in achieving its objectives in making and implementing decisions about the admission of refugees. The objectives of the Act include 1) a desire for a humanitarian response to refugee emergencies and a desire for control over that response, 2) a concern that ideological and geographic restrictions on refugee admissions be removed, and 3) a desire to balance international concerns and domestic impacts in making decisions on refugee admissions. The authors conclude that the refugee program does not serve the broad humanitarian purposes of previous parole programs, due to its stringent review requirements. The formal Congressional Consultations on refugee numbers should be rescheduled to allow regular Congressional input. The program needs a contingency budget for changing situations. The program needs more input from nongovernmental agencies and information sources. Recommendations on refugee admission numbers and allocations have not been well substantiated. Determinations as to which refugees are of "special humanitarian concern" are made solely on the basis of nationality; these decisions should also incorporate other factors. Admissions priorities are generally based on ties to this country, but this makes the refugee program a surrogate immigration program. Although the application of the refugee definition is difficult in practice, it forms the essence of the admission process. US staff must be trained to make these decisions; indecisiveness must not be allowed to jeopardize refugees.

  19. Effects of Coarse Particulate Matter on Emergency Hospital Admissions for Respiratory Diseases: A Time-Series Analysis in Hong Kong

    OpenAIRE

    Qiu, Hong; Yu, Ignatius Tak-sun; Tian, Linwei; Wang, Xiaorong; Tse, Lap Ah; Tam, Wilson; Wong, Tze Wai

    2012-01-01

    Background: Many epidemiological studies have linked daily counts of hospital admissions to particulate matter (PM) with an aerodynamic diameter ≤ 10 μm (PM 10) and ≤ 2.5 μm (PM 2.5), but relatively few have investigated the relationship of hospital admissions with coarse PM (PM c; 2.5-10 μm aerodynamic diameter). Objectives: We conducted this study to estimate the health effects of PM c on emergency hospital admissions for respiratory diseases in Hong Kong after controlling for PM 2.5 and ga...

  20. Local Medicaid home- and community-based services spending and nursing home admissions of younger adults.

    Science.gov (United States)

    Thomas, Kali S; Keohane, Laura; Mor, Vincent

    2014-11-01

    We used fixed-effect models to examine the relationship between local spending on home- and community-based services (HCBSs) for cash-assisted Medicaid-only disabled (CAMOD) adults and younger adult admissions to nursing homes in the United States during 2001 through 2008, with control for facility and market characteristics and secular trends. We found that increased CAMOD Medicaid HCBS spending at the local level is associated with decreased admissions of younger adults to nursing homes. Our findings suggest that states' efforts to expand HCBS for this population should continue.

  1. 40 CFR 85.1512 - Admission of catalyst and O2 sensor-equipped vehicles.

    Science.gov (United States)

    2010-07-01

    ... system and/or O2 sensor; (iii) Is labeled in accordance with 40 CFR part 86, subpart A or subpart S, or... CFR 12.73 unless it is included in a catalyst and O2 sensor control program approved by the... 40 Protection of Environment 18 2010-07-01 2010-07-01 false Admission of catalyst and O2...

  2. Students Selection for University Course Admission at the Joint Admissions Board (Kenya) Using Trained Neural Networks

    Science.gov (United States)

    Wabwoba, Franklin; Mwakondo, Fullgence M.

    2011-01-01

    Every year, the Joint Admission Board (JAB) is tasked to determine those students who are expected to join various Kenyan public universities under the government sponsorship scheme. This exercise is usually extensive because of the large number of qualified students compared to the very limited number of slots at various institutions and the…

  3. Admission Hyperglycemia in Head Injured Patients

    Directory of Open Access Journals (Sweden)

    Yousefzadeh Chabok Sh

    2009-04-01

    Full Text Available Hyperglycemia, in trauma patient, is commonly associated with a hyper metabolic stress response. Our objective is to determine the effects of hyperglycemia on the overall outcome of head trauma patients. In this descriptive study data were collected from head trauma patients' admitted to Intensive Care Unit (ICU of Poursina University Hospital in a one-year period (Jan 2004-Jan 2005, retrospectively. All patients had stayed in the ICU for more than 48 hours post-injuries. They were divided into two groups according to their serum glucose levels at the time of admission (<200mg/dl or >200mg/dl, age, gender and Injury Severity Score (ISS. Patients with diabetes mellitus were excluded .We determined the outcome according to duration of hospitalization and ICU stay as well as mortality rates. Variables were analyzed with t-test and chi square test. Out of 115 patients, 89.6% were men. About 36 % of patients had serum glucose levels ≥ 200 mg/dl over the study period and this group had significantly greater mortality rate but without necessarily longer ICU or hospital stay. In this study we have shown that admission hyperglycemia has significant effect on patient's mortality but it is still unclear whether it can be a cause for longer ICU/hospital stay."n© 2009 Tehran University of Medical Sciences. All rights reserved.

  4. Application of Affect to CALL

    Institute of Scientific and Technical Information of China (English)

    李露

    2006-01-01

    This essay mainly attempts to discuss some affective factors in CALL, with focus on affective influence on English (foreign language) learning and thus concludes that in the process of CALL related affect should be activated and made good use of to better foreign language teaching and learning.

  5. Nosocomial infection in adult admissions with hematological malignancies originating from different lineages: a prospective observational study.

    Directory of Open Access Journals (Sweden)

    Hui Liu

    Full Text Available Nosocomial infection (NI causes prolonged hospital stays, increased healthcare costs, and higher mortality among patients with hematological malignancies (HM. However, few studies have compared the incidence of NI according to the HM lineage.To compare the incidence of NI according to the type of HM lineage, and identify the risk factors for NI.This prospective observational study monitored adult patients with HM admitted for >48 hours to the General Hospital of the People's Liberation Army during 2010-2013. Attack rates and incidences of NI were compared, and multivariable logistic regression was used to control for confounding effects.This study included 6,613 admissions from 1,922 patients. During these admissions, 1,023 acquired 1,136 NI episodes, with an attack rate of 15.47% and incidence of 9.6‰ (95% CI: 9.1-10.2. Higher rates and densities of NIs were observed among myeloid neoplasm (MN admissions, compared to lymphoid neoplasm (LN admissions (28.42% vs. 11.00%, P<0.001 and 11.4% vs. 8.4‰, P<0.001. NI attack rates in acute myeloid leukemia (AML and myelodysplastic/myeloproliferative neoplasm (MDS/MPN were higher than those in MDS (30.69% vs. 20.19%, P<0.001; 38.89% vs. 20.19%, P = 0.003. Attack rates in T/NK-cell neoplasm and B-cell neoplasm were higher than those in Hodgkin lymphoma (15.04% vs. 3.65%; 10.94% vs. 3.65%, P<0.001. Multivariable regression analysis indicated prolonged hospitalization, presence of central venous catheterization, neutropenia, current stem cell transplant, infection on admission, and old age were independently associated with higher NI incidence. After adjusting for these factors, MN admissions still had a higher risk of infection (odds ratio 1.34, 95% CI: 1.13-1.59, P<0.001.Different NI attack rates were observed for HM from different lineages, with MN lineages having a higher attack rate and incidence than LN lineages. Special attention should be paid to MN admissions, especially AML and MDS

  6. Effect of tele health care on exacerbations and hospital admissions in patients with chronic obstructive pulmonary disease

    DEFF Research Database (Denmark)

    Ringbæk, Thomas; Green, Allan; Laursen, Lars Christian;

    2015-01-01

    BACKGROUND AND OBJECTIVE: Tele monitoring (TM) of patients with chronic obstructive pulmonary disease (COPD) has gained much interest, but studies have produced conflicting results. Our aim was to investigate the effect of TM with the option of video consultations on exacerbations and hospital...... during the study period. RESULTS: Most of the enrolled patients had severe COPD (forced expiratory volume in 1 second <50%pred in 86% and ≥hospital admission for COPD in the year prior to enrollment in 45%, respectively, of the patients). No difference in drop-out rate and mortality was found between the...... groups. With regard to the primary outcome, no significant difference was found in hospital admissions for COPD between the groups (P=0.74), and likewise, no difference was found in time to first admission or all-cause hospital admissions. Compared with the control group, TM group patients had more...

  7. Point-of-care testing of HbA1c in diabetes care and preventable hospital admissions

    DEFF Research Database (Denmark)

    Kristensen, Troels; Rose Olsen, Kim

    there is a link between preventable hospital admissions and POCT of HbA1c in general practice. Preventable hospital admissions were assessed through the ambulatory care sensitive conditions (ACSCs) classification of hospital admissions. We include independent variables such as gender, age, ethnicity......Background: Point-of-care testing (POCT) of HbA1c may result in improved diabetic control, better patient outcomes and enhanced clinical efficiency with fewer patient visits and subsequent reductions in hospitalizations and costs. In 2008, the Danish regulators agreed to create a new tariff...... for the remuneration of POCT of HbA1c in primary care. Aim: The aim of this study is to assess whether there is an association between the use of POCT of HbA1c and preventable hospital admissions among diabetes patients in general practice. Method: We apply logistic regression analyses to examine whether...

  8. Evaluation of incoming calls to intensive care unit for emergency assistance

    Directory of Open Access Journals (Sweden)

    Cevdet Düger

    2013-06-01

    Full Text Available Aim. The aim of this retrospective study was to determine mean admission time after calls, resuscitation success rate, and determine the rate of medical emergency team (MET calls of clinics in hospital by assessing the incoming calls to MET at intensive care unit. Methods. This study was conducted by collecting emergency call forms of 147 patients. The data including age, gender, medical diagnosis, the name of the caller department, cause of call, occurrence time, call time, attending time, medical care termination time and the outcomes were extracted from the forms or patient files. Event declaration time was accepted as minute time difference between occurrence time and call time. Duration of admission was accepted as minute time difference between call times and attending time. Duration of resuscitation was accepted as minute time difference between attending time and medical care termination time. Results. Mean event declaration time was 3.3 ± 3.0 minutes. Mean duration of admission was 3.7 ± 1.6 minutes. Mean duration of resuscitation was 20.5 ± 12.7 minutes. The resuscitation of 84 patients (63.6% was successful while 48 patients (36.4% died at the end of resuscitation. It was found that the patients with a result of successful resuscitation were significantly younger and their duration of resuscitation was significantly shorter. Conclusion. We indicate that MET system is an essential part of in-hospital emergency medical care system. We suggest that a blue code call system should be established by intensive care unit members and announced to all hospital staff.

  9. Namibia's exceptional admission to the ILO.

    Science.gov (United States)

    Fromont, M

    1998-01-01

    Namibia officially became the 136th ¿member state¿ of the International Labour Office (ILO) on October 3, 1978. At that time Namibia was politically dependent on South Africa and lived under apartheid. This stood in contradiction to international law, given that since October 1966 the UN General Assembly had terminated the Republic of South Africa's mandate over the territory. In 1967 it had entrusted its official administration to the UN Council for Namibia, which requested Namibia's admission to the ILO as a full member. Namibia met all the criteria required of a state: an established population and territory, a stable and internationally recognized legal structure, together with the capacity to enter into relations with other states. Namibia was recognized by the Conference as the de-facto authentic government through an election in which 368 voted in favor of Namibia with no oppositions and 50 abstentions.

  10. Superconformal minimal models and admissible Jack polynomials

    CERN Document Server

    Blondeau-Fournier, Olivier; Ridout, David; Wood, Simon

    2016-01-01

    We give new proofs of the rationality of the N=1 superconformal minimal model vertex operator superalgebras and of the classification of their modules in both the Neveu-Schwarz and Ramond sectors. For this, we combine the standard free field realisation with the theory of Jack symmetric functions. A key role is played by Jack symmetric polynomials with a certain negative parameter that are labelled by admissible partitions. These polynomials are shown to describe free fermion correlators, suitably dressed by a symmetrising factor. The classification proofs concentrate on explicitly identifying Zhu's algebra and its twisted analogue. Interestingly, these identifications do not use an explicit expression for the non-trivial vacuum singular vector. While the latter is known to be expressible in terms of an Uglov symmetric polynomial or a linear combination of Jack superpolynomials, it turns out that standard Jack polynomials (and functions) suffice to prove the classification.

  11. Allocation and Admission Policies for Service Streams

    CERN Document Server

    Mazzucco, Michele; Fisher, Mike; McKee, Paul

    2011-01-01

    A service provisioning system is examined, where a number of servers are used to offer different types of services to paying customers. A customer is charged for the execution of a stream of jobs; the number of jobs in the stream and the rate of their submission is specified. On the other hand, the provider promises a certain quality of service (QoS), measured by the average waiting time of the jobs in the stream. A penalty is paid if the agreed QoS requirement is not met. The objective is to maximize the total average revenue per unit time. Dynamic policies for making server allocation and stream admission decisions are introduced and evaluated. The results of several simulations are described.

  12. Preventing compulsory admission to psychiatric inpatient care through psycho-education and crisis focused monitoring

    Directory of Open Access Journals (Sweden)

    Lay Barbara

    2012-09-01

    Full Text Available Abstract Background The high number of involuntary placements of people with mental disorders in Switzerland and other European countries constitutes a major public health issue. In view of the ethical and personal relevance of compulsory admission for the patients concerned and given the far-reaching effects in terms of health care costs, innovative interventions to improve the current situation are much needed. A number of promising approaches to prevent involuntary placements have been proposed that target continuity of care by increasing self-management skills of patients. However, the effectiveness of such interventions in terms of more robust criteria (e.g., admission rates has not been sufficiently analysed in larger study samples. The current study aims to evaluate an intervention programme for patients at high risk of compulsory admission to psychiatric hospitals. Effectiveness will be assessed in terms of a reduced number of psychiatric hospitalisations and days of inpatient care in connection with involuntary psychiatric admissions as well as in terms of cost-containment in inpatient mental health care. The intervention furthermore intends to reduce the degree of patients’ perceived coercion and to increase patient satisfaction, their quality of life and empowerment. Methods/Design This paper describes the design of a randomised controlled intervention study conducted currently at four psychiatric hospitals in the Canton of Zurich. The intervention programme consists of individualised psycho-education focusing on behaviours prior to and during illness-related crisis, the distribution of a crisis card and, after inpatient admission, a 24-month preventive monitoring of individual risk factors for compulsory re-admission to hospital. All measures are provided by a mental health care worker who maintains permanent contact to the patient over the course of the study. In order to prove its effectiveness the intervention programme will be

  13. Dynamic bandwidth allocation algorithm according to controlling call-blocking probabilities proportion%按比例控制呼叫阻塞率的动态带宽分配算法

    Institute of Scientific and Technical Information of China (English)

    赵海军; 李敏; 崔梦天; 李明东

    2012-01-01

    For achieving more effectively dynamic resource allocation, a dynamic bandwidth allocation algorithm is proposed using complete partitioning (CP) technology in a single communication link by analysing dynamic bandwidth allocation in a common link. On the basis of forecasting the influence of call-blocking probabilities on the transient response, the algorithm proposed in this paper controlls call-blocking probabilities proportion between different Classes-of-Service (CoSs) of non-stationary traffic with variable size bandwidth requests, consequently achieving optimal utilization of the bandwidth. Simulation shows that the capacities can be dynamically allocated in a nonstationary traffic environment by adopting the proposed algorithm. And it can also allocate the bandwidth much more effectively, while enhancing greatly the utilization ratio of the bandwidth, reducing the average polling time.%提出了一种在单链路中采用完全划分技术的动态带宽分配算法,该算法在预测呼叫阻塞率对过渡反应影响的基础上,对链路中具有可变带宽需求的非固定流量的不同服务级间的呼叫阻塞率的比例进行控制,从而实现带宽的最佳利用.仿真表明,所提出的算法能够有效地将容量动态地分配到非固定流量环境中,提高了带宽利用率,缩短了平均轮询时间.

  14. Temperature effects on hospital admissions for kidney morbidity in Taiwan

    International Nuclear Information System (INIS)

    Objective: This study aimed to associate hospital admissions of kidney diseases with extreme temperature and prolonged heat/cold events in 7 regions of Taiwan. Methods: Age-specific (10, O3, and NO2) and potential confounders. Results: We observed a V or J-shape association between daily average temperatures and the RR estimates for hospital admissions of kidney diseases in Taiwan. The lowest risk for hospital admissions of kidney diseases was found at around 25 °C, and risk increased as temperatures deviated from 25 °C. The pooled cumulative 8-day RR for all ages of population of the 7 study areas were 1.10 (95% confidence interval (CI): 1.01, 1.19) at 18 °C and 1.45 (95% CI: 1.27, 1.64) at 30 °C. High temperature has more profound influence on hospital admission of kidney diseases than low temperature. Temperature risks for hospital admissions were similar between younger (< 65 years) and elderly (65 + years) population. This study observed no significant effects of prolonged heat extremes on hospital admissions of kidney diseases. Conclusions: The heat effect for kidney morbidities leading to hospital admission was more significant than that of the cold temperature. This study did not find the age-dependent relative risks for temperature associating with hospital admissions of kidney diseases. - Highlights: ► V or J-shaped association was observed between daily temperatures and hospital admissions for renal diseases in Taiwan. ► The pooled relative risks accounting for 8 days of lag for the 7 study areas were 1.1 at 18 °C and 1.46 at 30 °C. ► There is no difference of the relative risk estimates for hospital admissions between younger and elderly population. ► We found significant protective effects of hospital admissions for prolonged cold extremes, but not for heat extremes

  15. Assisted admissions? A national survey of general practitioner experience of involuntary admissions.

    LENUS (Irish Health Repository)

    Kelly, M

    2011-10-01

    The 2001 Mental Health Act introduced in 2006, changed how a patient is admitted involuntarily to a psychiatric unit. This paper reports on a national survey of general practitioners\\' experience implementing the Act. Five hundred and sixty eight (568) GPs completed the survey. Twenty five percent (25%) of respondants had not used it. When used, twenty four percent (24%) report that it takes seven hours or more to complete an admission. Fifty percent (50%) of respondents are confident to complete the necessary paperwork. Overall GPs are dissatisfied with arrangements for transport of patients (mean Likert score 3.5), primarily due to the time delay. GPs believe this places risk on the patient, family and GP. Only thirty-three percent (33%) of respondents feel that the Mental Health Act has improved the patient, GP and family experience of involuntary admission.

  16. 29 CFR 458.71 - Procedure upon admission of facts.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 2 2010-07-01 2010-07-01 false Procedure upon admission of facts. 458.71 Section 458.71... facts. The admission of all the material allegations of fact in the complaint shall constitute a waiver... his recommended decision and order in which he shall adopt as his proposed findings of fact...

  17. 10 CFR 590.308 - Admissions of facts.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Admissions of facts. 590.308 Section 590.308 Energy... WITH RESPECT TO THE IMPORT AND EXPORT OF NATURAL GAS Procedures § 590.308 Admissions of facts. (a) At... proceeding that relate to statements or opinions of fact or of the application of law to fact. (b) A...

  18. The Use of Criminal History Information in College Admissions Decisions

    Science.gov (United States)

    Pierce, Matthew W.; Runyan, Carol W.; Bangdiwala, Shrikant I.

    2014-01-01

    To understand the potential public health and social justice implications of criminal background screening on college admissions, we examined postsecondary institutions' reasons for collecting or not collecting applicants' criminal justice information. We invited heads of admissions from 300 randomly sampled postsecondary institutions to…

  19. Problems in Admissions in U.S. Dental Schools

    Science.gov (United States)

    Mendel, Robert W.; Tabb, W. Gary

    1977-01-01

    Dental school admission policy must direct significant attention to the number of selectees who might enter each of the dental career fields and to those who might eventually serve population segments that currently receive little dental care. Specific suggestions for improving the admissions situation are offered. (LBH)

  20. Strategic Enrollment Management's Ambassadors: The Changing Role of Admissions Counselors

    Science.gov (United States)

    Mathis, Daniel

    2010-01-01

    Road runner. File jockey. Advisor. Public speaker. Recruiter. At any given time, an admissions counselor fits one, some, or all of these descriptors. While all of these descriptors indicate an important function within a college or university, none reflects the increasingly complex nature of the role of an admissions counselor in strategic…

  1. Hospital admission interviews are time-consuming with several interruptions

    DEFF Research Database (Denmark)

    Ghazanfar, Misbah N; Honoré, Per Gustaf Hartvig; Nielsen, Trine R H;

    2012-01-01

    The admission interview is an important procedure to reduce medication errors. Studies indicate that physicians do not spend much time on the interview and that the major obstacles are lack of time and heavy workload. The aim of this study was to measure the time physicians spend on admission...... interviews and to describe factors that affect time consumption....

  2. 14 CFR 125.315 - Admission to flight deck.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Admission to flight deck. 125.315 Section...,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Operations § 125.315 Admission to flight deck. (a) No person may admit any person to the flight deck of an airplane unless...

  3. Communications Is from Mars, Admissions Is from Venus

    Science.gov (United States)

    Scully, Maura King

    2010-01-01

    Marketing communications and admissions often have very different needs, priorities, and ways of conducting business, but the two units work toward the same end goal. Brad Ward of BlueFuego, a marketing company that specializes in social Web tools for educational institutions, explains that admissions doesn't necessarily need to [talk] to…

  4. University of California Adopts Sweeping Changes in Admissions Policy

    Science.gov (United States)

    Keller, Josh; Hoover, Eric

    2009-01-01

    The University of California has adopted changes to its undergraduate admissions policy that will enlarge its applicant pool and drop the requirement that students take the SAT Subject Tests. The policy is the most significant change in the university's admissions practices in at least a decade. It will increase the number of California…

  5. Admissions Handbook, Third level full time courses : 1988

    OpenAIRE

    City of Dublin Vocational Education Committee

    1988-01-01

    Issued by the Admissions Office, DIT, 14 Upr. Mount St., Dublin 2. Booklet includes application form for admission to third level whole-time courses 1988/89, external examinations form,submission of portfolios form, payment form and application acknowledgement postcard.

  6. Early Admission to Elementary School: Barriers versus Benefits.

    Science.gov (United States)

    Proctor, Theron B.; And Others

    1988-01-01

    This article analyzes why schools fail to provide for early admission of intellectually advanced children. Reasons cited include misinterpretation of research findings, bias of school personnel, expense of screening, convenience of administering a uniform entrance age procedure, etc. Benefits accruing from early admission are discussed. (JDD)

  7. UCT's Admissions Policies: Is the Playing Field Level?

    Science.gov (United States)

    Favish, J.; Hendry, J.

    2010-01-01

    The article outlines how UCT's commitment to redress and diversity has officially guided the university's approach to admissions planning. In 2009 the Senate requested the Vice Chancellor to conduct a review of the admissions policy particularly to determine whether race continued to be an adequate proxy for disadvantage. This article analyses…

  8. Low hospital admission rates for respiratory diseases in children.

    NARCIS (Netherlands)

    Uijen, J.H.J.M.; Schellevis, F.G.; Bindels, P.J.E.; Willemsen, S.P.; Wouden, J.C. van der

    2010-01-01

    BACKGROUND: Population-based data on hospital admissions for children aged 0-17 years concerning all respiratory diseases are scarce. This study examined hospital admissions in relation to the preceding consultations in general practice in this age group. METHODS: Data on children aged 0-17 years wi

  9. A Revised Admissions Standard for One Community College Nursing Program

    Science.gov (United States)

    Lown, Maris A.

    2010-01-01

    Predicting success on the NCLEX-RN is of paramount importance to nursing programs as they are held accountable for this outcome by accrediting agencies and by boards of nursing. This action research study examined the relationship between the NET admission test, anatomy and physiology grades, grade point average (GPA) on admission to the program…

  10. Psychiatric Inpatient Admissions of Adults with Intellectual Disabilities: Predictive Factors

    Science.gov (United States)

    Cowley, Amy; Newton, Jonathan; Sturmey, Peter; Bouras, Nick; Holt, Geraldine

    2005-01-01

    Information on admission to psychiatric inpatient units is lacking from the literature on contemporary services for people with intellectual disability and mental health needs. Here we report on predictors of admission for a cohort of 752 adults from this population living in community settings; 83 were admitted. We also report on two subsamples…

  11. Medicare Home Visit Program Associated With Fewer Hospital And Nursing Home Admissions, Increased Office Visits.

    Science.gov (United States)

    Mattke, Soeren; Han, Dan; Wilks, Asa; Sloss, Elizabeth

    2015-12-01

    Clinical home visit programs for Medicare beneficiaries are a promising approach to supporting aging in place and avoiding high-cost institutional care. Such programs combine a comprehensive geriatric assessment by a clinician during a home visit with referrals to community providers and health plan resources to address uncovered issues. We evaluated UnitedHealth Group's HouseCalls program, which has been offered to Medicare Advantage plan members in Arkansas, Georgia, Missouri, South Carolina, and Texas since January 2008. We found that, compared to non-HouseCalls Medicare Advantage plan members and fee-for-service beneficiaries, HouseCalls participants had reductions in admissions to hospitals (1 percent and 14 percent, respectively) and lower risk of nursing home admission (0.67 percent and 1.3 percent, respectively). In addition, participants' numbers of office visits--chiefly to specialists--increased 2-6 percent (depending on the comparison group). The program's effects on emergency department use were mixed. These results indicate that a thorough home-based clinical assessment of a member's health and home environment combined with referral services can support aging in place, promote physician office visits, and preempt costly institutional care. PMID:26643635

  12. Hospital admissions for acute myocardial infarction before and after implementation of a comprehensive smoke-free policy in Uruguay

    Science.gov (United States)

    Sebrié, Ernesto Marcelo; Sandoya, Edgardo; Hyland, Andrew; Bianco, Eduardo; Glantz, Stanton A; Cummings, K Michael

    2012-01-01

    Background Stimulated by the WHO Framework Convention on Tobacco Control, many countries in Latin America adopted comprehensive smoke-free policies. In March 2006, Uruguay became the first Latin American country to adopt 100% smoke-free national legislation, which ended smoking in all indoor public places and workplaces, including restaurants and bars. The objective of this study was to evaluate trends in hospital admissions for cardiovascular disease 2 years before and 2 years after the policy was implemented in Uruguay. Methods Reports of hospital admissions for acute myocardial infarction (AMI) (International Classification of Disease-10 I21) from 37 hospitals (79% of all hospital admissions in the country), representing the period 2 years before and 2 years after the adoption of a nationwide smoke-free policy in Uruguay (between 1 March 2004 and 29 February 2008), were reviewed. A time series analysis was undertaken to compare the average monthly number of events of hospital admission for AMI before and after the smoke-free law. Results A total of 7949 hospital admissions for AMI were identified during the 4-year study period. Two years after the smoke-free policy was enacted, hospital admissions for AMI fell by 22%. The same pattern and roughly the same magnitude of reduction in AMI admissions were observed for patients seen in public and private hospitals, men, women and people aged 40–65 years and older than 65 years. Conclusions The national smoke-free policy implemented in Uruguay in 2006 was associated with a significant reduction in hospital admissions for AMI. PMID:22337557

  13. Effects of meteorological factors on daily hospital admissions for asthma in adults: a time-series analysis.

    Directory of Open Access Journals (Sweden)

    Yue Zhang

    Full Text Available There is limited evidence for the impacts of meteorological changes on asthma hospital admissions in adults in Shanghai, China.To quantitatively evaluate the short-term effects of daily mean temperature on asthma hospital admissions.Daily hospital admissions for asthma and daily mean temperatures between January 2005 and December 2012 were analyzed. After controlling for secular and seasonal trends, weather, air pollution and other confounding factors, a Poisson generalized additive model (GAM combined with a distributed lag non-linear model were used to explore the associations between temperature and hospital admissions for asthma.During the study periods, there were 15,678 hospital admissions for asthma by residents of Shanghai, an average 5.6 per day. Pearson correlation analysis found a significant negative correlation (r = -0.174, P<0.001 between asthma hospitalizations and daily mean temperature (DMT. The DMT effect on asthma increased below the median DMT, with lower temperatures associated with a higher risk of hospital admission for asthma. Generally, the cold effect appeared to be relatively acute, with duration lasting several weeks, while the hot effect was short-term. The relative risk of asthma hospital admissions associated with cold temperature (the 25th percentile of temperature relative to the median temperature was 1.20 (95% confidence interval [CI], 1.01∼1.41 at lag0-14. However, warmer temperatures were not associated with asthma hospital admissions.Cold temperatures may trigger asthmatic attacks. Effective strategies are needed to protect populations at risk from the effects of cold.

  14. Transformation of admission interview to documentation for nursing practice

    DEFF Research Database (Denmark)

    Højskov, Ida E; Glasdam, Stinne

    2014-01-01

    Ricoeur was conducted and consisted of five taped admission interviews, along with the written patient documentation subsequently worked out by the nurse. The findings were presented in four constructed themes: Admission interviews are the nurse's room rather than the patient's; Information on a surgical......The admission interview is usually the first structured meeting between patient and nurse. The interview serves as the basis for personalised nursing and care planning and is the starting point for the clinic's documentation of the patient and his course of treatment. In this way, admission...... interviews constitute a basis for reporting by each nurse on the patient to nursing colleagues. This study examined how, by means of the admission interview, nurses constructed written documentation of the patient and his course of treatment for use by fellow nurses. A qualitative case study inspired by...

  15. Factors related to monitoring during admission of acute patients

    DEFF Research Database (Denmark)

    Schmidt, Thomas; Bech, Camilla Louise Nørgaard; Brabrand, Mikkel;

    2016-01-01

    Understanding the use of patient monitoring systems in emergency and acute facilities may help to identify reasons for failure to identify risk patients in these settings. Hence, we investigate factors related to the utilization of automated monitoring for patients admitted to an acute admission...... one measurement were analyzed using quantile regression by looking at the impact of distance from nursing office, number of concurrent patients, wing type (medical/surgical), age, sex, comorbidities, and severity conditioned on how much patients were monitored during their admissions. We registered 11......,848 admissions, of which we were able to link patient monitor readings to 3149 (26.6 %) with 50 % being monitored <1.4 % of total admission time. Distance from nursing office had little influence on patients monitored <10 % of their admission time. But for other patients, being positioned further away from the...

  16. Optimizing Programs Using Call Graphs

    Directory of Open Access Journals (Sweden)

    Pravin Kandala

    2014-02-01

    Full Text Available When working with complex software, visualization improves understanding considerably. Thus enhancing the ability of programmers to picture the relationships between components in a complex program not only saves time but becomes progressively mission- critical with increasing software complexity. Call Graph Generation Tool is a visualization tool which provides programmers different metrics to assess the software code. The different metrics include total n umber of lines in the function, total number of executable lines, number of unreachable lines, and cyclomatic complexity of the program. It provides a graphical representation of the function calls in a tree like structure. The tool accepts a „C‟ program and generates a funct ions call graph along with the functional metrics. The call graph generation tool provides both static and dynamic view. The whole programming is done using java technology. Thus, this tool helps the developer to know the program flow and thereby decide the optimality of the program. In situations where in, a single program is to be selected from available programs, this tool helps to figure out it. This paper depicts usage of call graph Generator to assess the reachability and exactness of the programs.

  17. OPTIMIZING PROGRAMS USING CALL GRAPHS

    Directory of Open Access Journals (Sweden)

    Pravin Kandala

    2015-11-01

    Full Text Available When working with complex software, visualization improves understanding considerably. Thus enhancing the ability of programmers to picture the relationships between components in a complex program not only saves time but becomes progressively mission- critical with increasing software complexity. Call Graph Generation Tool is a visualization tool which provides programmers different metrics to assess the software code. The different metrics include total number of lines in the function, total number of executable lines, number of unreachable lines, and cyclomatic complexity of the program. It provides a graphical representation of the function calls in a tree like structure. The tool accepts a „C‟ program and generates a functions call graph along with the functional metrics. The call graph generation tool provides both static and dynamic view. The whole programming is done using java technology. Thus, this tool helps the developer to know the program flow and thereby decide the optimality of the program. In situations where in, a single program is to be selected from available programs, this tool helps to figure out it. This paper depicts usage of call graph Generator to assess the reachability and exactness of the programs.

  18. Frequent hospital admission of older people with chronic disease: a cross-sectional survey with telephone follow-up and data linkage

    Directory of Open Access Journals (Sweden)

    Longman Jo M

    2012-10-01

    Full Text Available Abstract Background The continued increase in hospital admissions is a significant and complex issue facing health services. There is little research exploring patient perspectives or examining individual admissions among patients with frequent admissions for chronic ambulatory care sensitive (ACS conditions. This paper aims to describe characteristics of older, rural patients frequently admitted with ACS conditions and identify factors associated with their admissions from the patient perspective. Methods Patients aged 65+ resident in North Coast NSW with three or more admissions for selected ACS chronic conditions within a 12 month period, were invited to participate in a postal survey and follow up telephone call. Survey and telephone data were linked to admission and health service program data. Descriptive statistics were generated for survey respondents; logistic regression models developed to compare characteristics of patients with 3 or with 4+ admissions; and comparisons made between survey respondents and non-respondents. Results Survey respondents (n=102 had a mean age of 77.1 years (range 66–95 years, and a mean of 4.1 admissions within 12 months; 49% had at least three chronic conditions; the majority had low socioeconomic status; one in five (22% reported some difficulty affording their medication; and 35% lived alone. The majority reported psychological distress with 31% having moderate or severe psychological distress. While all had a GP, only 38% reported having a written GP care plan. 22% of those who needed regular help with daily tasks did not have a close friend or relative who regularly cared for them. Factors independently associated with more frequent (n=4+ relative to less frequent (n=3 admissions included having congestive heart failure (p=0.003, higher social isolation scores (p=0.040 and higher Charlson Comorbidity Index scores (p=0.049. Most respondents (61% felt there was nothing that could have avoided their most

  19. Federal Constitutional Court affirms admissibility of decision in the matter of the Fast Breeder Kalkar

    International Nuclear Information System (INIS)

    In the case of the examination of the constituionality of section 7 Atomic Energy Act, in as far as this article enables the licensing of nuclear power plants of the type called Fast Breeder, the Second Senate of the Federal Constitutional Court has answered the OVG Muenster's motion to stay proceedings dated Aug 18th, 1977, with the following 'interim decision' - 2 B v L 8/77 - dated Jan 31st, 1978: 'The action is admissible'. The verdict was unanimous. The main grounds upon which the interim judgment is based are given in full. (orig./HP)

  20. Acute kidney injury on admission to the intensive care unit: where to go from here?

    Science.gov (United States)

    Ostermann, Marlies

    2008-01-01

    Acute kidney injury (AKI) is a common problem, especially in critically ill patients. In Critical Care, Kolhe and colleagues report that 6.3% of 276,731 patients in 170 intensive care units (ICUs) in the UK had evidence of severe AKI within the first 24 hours of admission to ICU. ICU and hospital mortality as well as length of stay in hospital were significantly increased. In light of this serious burden on individuals and the health system in general, the following commentary discusses the current state of knowledge of AKI in ICU and calls for more attention to preventive strategies.

  1. Contingencies of Value: Devices and Conventions at a Design School Admission Test

    Directory of Open Access Journals (Sweden)

    Sara Malou Strandvad

    2014-12-01

    Full Text Available Based on a study of the admission test at a design school, this paper investigates the contingencies of aesthetic values as these become visible in assessment practices. Theoretically, the paper takes its starting point in Herrnstein Smith's notion of 'contingencies of values' and outlines a pragmatist ground where cultural sociology and economic sociology meet. Informed by the literature on cultural intermediaries, the paper discusses the role of evaluators and the devices which accompany them. Whereas studies of cultural intermediaries traditionally apply a Bourdieusian perspective, recent developments within this field of literature draws inspiration from the so-called "new new economic sociology," which this paper adds to. While the admission test is easily described as a matter of overcoming "subjective" aesthetic evaluations by means of "objective" and standardized assessment criteria, the paper does not accept this storyline. As an alternative, the paper outlines the contingencies of values which are at play at the admission test, composed of official assessment criteria and scoring devices together with conventions within the world of design, and set in motion by interactions with the objects that applicants submit.

  2. Banding and Ballots: Secondary School Admissions in England: Admissions in 2012/13 and the Impact of Growth of Academies

    Science.gov (United States)

    Noden, Philip; West, Anne; Hind, Audrey

    2014-01-01

    This report provides key findings from a two part research project funded by the Sutton Trust and the London School of Economics & Political Science, (LSE) focusing on secondary school admissions in England. The research analyses secondary schools' admissions criteria and practices in England in 2012/13 and illustrative examples of how some…

  3. Apparent temperature and cause-specific emergency hospital admissions in Greater Copenhagen, Denmark.

    Directory of Open Access Journals (Sweden)

    Janine Wichmann

    Full Text Available One of the key climate change factors, temperature, has potentially grave implications for human health. We report the first attempt to investigate the association between the daily 3-hour maximum apparent temperature (Tapp(max and respiratory (RD, cardiovascular (CVD, and cerebrovascular (CBD emergency hospital admissions in Copenhagen, controlling for air pollution. The study period covered 1 January 2002-31 December 2006, stratified in warm and cold periods. A case-crossover design was applied. Susceptibility (effect modification by age, sex, and socio-economic status was investigated. For an IQR (8°C increase in the 5-day cumulative average of Tapp(max, a 7% (95% CI: 1%, 13% increase in the RD admission rate was observed in the warm period whereas an inverse association was found with CVD (-8%, 95% CI: -13%, -4%, and none with CBD. There was no association between the 5-day cumulative average of Tapp(max during the cold period and any of the cause-specific admissions, except in some susceptible groups: a negative association for RD in the oldest age group and a positive association for CVD in men and the second highest SES group. In conclusion, an increase in Tapp(max is associated with a slight increase in RD and decrease in CVD admissions during the warmer months.

  4. The Wireless Nursing Call System

    DEFF Research Database (Denmark)

    Jensen, Casper Bruun

    2006-01-01

    This paper discusses a research project in which social scientists were involved both as analysts and supporters during a pilot with a new wireless nursing call system. The case thus exemplifies an attempt to participate in developing dependable health care systems and offers insight into the cha......This paper discusses a research project in which social scientists were involved both as analysts and supporters during a pilot with a new wireless nursing call system. The case thus exemplifies an attempt to participate in developing dependable health care systems and offers insight...

  5. H-Optimal Control in Coefficients for Dirichlet Parabolic Problems

    Directory of Open Access Journals (Sweden)

    I. G. Balanenko

    2010-01-01

    Full Text Available In the paper the Dirichlet optimal control problem associated with a linear parabolic equation the coefficients of which we take as controls in L1(Ω has been studied. Since equations of this type can exhibit the Lavrentieff phenomenon and non-uniqueness of weak solutions, it is shown that the optimal control problem in the coefficients can be stated in different settings depending on the choice of the class of admissible solutions. Using the direct method in the Calculus of Variations, the solvability of the above optimal control problems in the so-called class of inadmissible solutions has been discussed.

  6. First Class Call Stacks: Exploring Head Reduction

    OpenAIRE

    Johnson-Freyd, Philip; Downen, Paul; Ariola, Zena M.

    2016-01-01

    Weak-head normalization is inconsistent with functional extensionality in the call-by-name $\\lambda$-calculus. We explore this problem from a new angle via the conflict between extensionality and effects. Leveraging ideas from work on the $\\lambda$-calculus with control, we derive and justify alternative operational semantics and a sequence of abstract machines for performing head reduction. Head reduction avoids the problems with weak-head reduction and extensionality, while our operational ...

  7. Parental alarm calls suppress nestling vocalization.

    OpenAIRE

    Platzen, Dirk; Magrath, Robert D.

    2004-01-01

    Evolutionary models suggest that the cost of a signal can ensure its honesty. Empirical studies of nestling begging imply that predator attraction can impose such a cost. However, parents might reduce or abolish this cost by warning young of the presence of danger. We tested, in a controlled field playback experiment, whether alarm calls cause 5-, 8- and 11-day-old nestlings of the white-browed scrubwren, Sericornis frontalis, to suppress vocalization. In this species, nestlings vocalize when...

  8. Admissibility, stable units and connected components

    CERN Document Server

    Xarez, J J

    2011-01-01

    Consider a reflection from a finitely-complete category $\\mathbb{C}$ into its full subcategory $\\mathbb{M}$, with unit $\\eta :1_\\mathbb{C}\\rightarrow HI$. Suppose there is a left-exact functor $U$ into the category of sets, such that $UH$ reflects isomorphisms and $U(\\eta_C)$ is a surjection, for every $C\\in\\mathbb{C}$. If, in addition, all the maps $\\mathbb{M}(T,M)\\rightarrow \\mathbf{Set}(1,U(M))$ induced by the functor $UH$ are surjections, where $T$ and 1 are respectively terminal objects in $\\mathbb{C}$ and $\\mathbf{Set}$, for every object $M$ in the full subcategory $\\mathbb{M}$, then it is true that: the reflection $H\\vdash I$ is semi-left-exact (admissible in the sense of categorical Galois theory) if and only if its connected components are "connected"; it has stable units if and only if any finite product of connected components is "connected". Where the meaning of "connected" is the usual in categorical Galois theory, and the definition of connected component with respect to the ground structure wil...

  9. An Evaluation Framework for CALL

    Science.gov (United States)

    McMurry, Benjamin L.; Williams, David Dwayne; Rich, Peter J.; Hartshorn, K. James

    2016-01-01

    Searching prestigious Computer-assisted Language Learning (CALL) journals for references to key publications and authors in the field of evaluation yields a short list. The "American Journal of Evaluation"--the flagship journal of the American Evaluation Association--is only cited once in both the "CALICO Journal and Language…

  10. Nursing care as a calling.

    Science.gov (United States)

    Raatikainen, R

    1997-06-01

    A calling is a deep desire to devote oneself to serving people according to the high values of the task or profession. The aim of this study is to clarify the relationship between a calling experience and professional knowledge, nursing action and motivation. The data were collected from all the registered nurses (n = 179) at five hospitals. The response was 70%. The nurses who were committed to their profession and experienced their job as a calling, had a good knowledge about the ill feeling and maladjustment of their patients and were also good sources of support for their patients. They understood the importance of family ties and offered support to their patients' families. They were aware of the needs of dying patients and their concern with spiritual questions, and satisfied these needs well. It was characteristic for them to collaborate closely within a team, to experience the content of their work as enriching and to possess proficient professional abilities. They were therefore excellent in supporting both the individual patient and his or her family. They had a deep understanding of the whole process of patient care. According to these results the calling experience is not in conflict with professional principles. PMID:9181405

  11. Learning as Calling and Responding

    Science.gov (United States)

    Jons, Lotta

    2014-01-01

    According to Martin Buber's philosophy of dialogue, our being-in-the-world is to be conceived of as an existential dialogue. Elsewhere, I have conceptualized the teacher-student-relation accordingly (see Jons 2008), as a matter of calling and responding. The conceptualization rests on a secularised notion of vocation, paving way for…

  12. Distributed medium access control in wireless networks

    CERN Document Server

    Wang, Ping

    2013-01-01

    This brief investigates distributed medium access control (MAC) with QoS provisioning for both single- and multi-hop wireless networks including wireless local area networks (WLANs), wireless ad hoc networks, and wireless mesh networks. For WLANs, an efficient MAC scheme and a call admission control algorithm are presented to provide guaranteed QoS for voice traffic and, at the same time, increase the voice capacity significantly compared with the current WLAN standard. In addition, a novel token-based scheduling scheme is proposed to provide great flexibility and facility to the network servi

  13. Daily weather variables and affective disorder admissions to psychiatric hospitals

    Science.gov (United States)

    McWilliams, Stephen; Kinsella, Anthony; O'Callaghan, Eadbhard

    2014-12-01

    Numerous studies have reported that admission rates in patients with affective disorders are subject to seasonal variation. Notwithstanding, there has been limited evaluation of the degree to which changeable daily meteorological patterns influence affective disorder admission rates. A handful of small studies have alluded to a potential link between psychiatric admission rates and meteorological variables such as environmental temperature (heat waves in particular), wind direction and sunshine. We used the Kruskal-Wallis test, ARIMA and time-series regression analyses to examine whether daily meteorological variables—namely wind speed and direction, barometric pressure, rainfall, hours of sunshine, sunlight radiation and temperature—influence admission rates for mania and depression across 12 regions in Ireland over a 31-year period. Although we found some very weak but interesting trends for barometric pressure in relation to mania admissions, daily meteorological patterns did not appear to affect hospital admissions overall for mania or depression. Our results do not support the small number of papers to date that suggest a link between daily meteorological variables and affective disorder admissions. Further study is needed.

  14. Admissions for personality disorders in Italy from 1988 to 1998

    Directory of Open Access Journals (Sweden)

    Barbui Corrado

    2006-08-01

    Full Text Available Abstract Background Personality disorders affect a substantial proportion of the population. It is unclear, however, whether the burden of personality disorders on modern mental health services has been increasing. To fill this gap, we analyzed trends in admissions for personality disorders in Italy from 1988 to 1998. Methods We used the yearly data from the Italian Central Institute of Statistics to analyse trends in the total number of admissions for personality disorders and in the total number of first admissions for personality disorders. Results The absolute number of admissions for personality disorders almost trebled from 1988 to 1998, as well as the proportion of all psychiatric admissions that were for personality disorders. Whilst there has been a marked increase in the absolute number of first admissions, the proportion of all first psychiatric admissions that were for personality disorders showed a steady but modest increase, from 5.7% to 7.6%. Conclusion In Italy, the burden of personality disorders on modern mental health services has been increasing. In terms of public health, these findings highlight the urgent need of developing policies to tackle the increasing demand of care of this difficult-to-treat patient population.

  15. Variance in practice emergency medical admission rates: can it be explained?

    OpenAIRE

    Duffy, Rebecca; Neville, Ron; Staines, Harry

    2002-01-01

    BACKGROUND: Emergency admission rates have been rising steadily in recent years, with the majority of the increase owing to emergency medical admissions. Possible causative factors include changing demography, incidence of disease, admission thresholds, multiple admissions, and appropriateness of admission. AIM: To investigate the impact of patient and practice factors on variance in general practices' emergency medical admissions rates. DESIGN OF STUDY: Multiple regression analysis relating ...

  16. Fine particulate air pollution and its components in association with cause-specific emergency admissions

    Directory of Open Access Journals (Sweden)

    Koutrakis Petros

    2009-12-01

    Full Text Available Abstract Background Although the association between exposure to particulate matter and health is well established, there remains uncertainty as to whether certain chemical components are more harmful than others. We explored whether the association between cause-specific hospital admissions and PM2.5 was modified by PM2.5 chemical composition. Methods We estimated the association between daily PM2.5 and emergency hospital admissions for cardiac causes (CVD, myocardial infarction (MI, congestive heart failure (CHF, respiratory disease, and diabetes in 26 US communities, for the years 2000-2003. Using meta-regression, we examined how this association was modified by season- and community-specific PM2.5 composition, controlling for seasonal temperature as a surrogate for ventilation. Results For a 10 μg/m3 increase in 2-day averaged PM2.5 concentration we found an increase of 1.89% (95% CI: 1.34- 2.45 in CVD, 2.25% (95% CI: 1.10- 3.42 in MI, 1.85% (95% CI: 1.19- 2.51 in CHF, 2.74% (95% CI: 1.30- 4.2 in diabetes, and 2.07% (95% CI: 1.20- 2.95 in respiratory admissions. The association between PM2.5 and CVD admissions was significantly modified when the mass was high in Br, Cr, Ni, and Na+, while mass high in As, Cr, Mn, OC, Ni, and Na+ modified MI, and mass high in As, OC, and SO42- modified diabetes admissions. For these species, an interquartile range increase in their relative proportion was associated with a 1-2% additional increase in daily admissions per 10 μg/m3 increase in mass. Conclusions We found that PM2.5 mass higher in Ni, As, and Cr, as well as Br and OC significantly increased its effect on hospital admissions. This result suggests that particles from industrial combustion sources and traffic may, on average, have greater toxicity.

  17. Incidence and risk factors for neonatal tetanus in admissions to Kilifi County Hospital, Kenya.

    Directory of Open Access Journals (Sweden)

    Fredrick Ibinda

    Full Text Available Neonatal Tetanus (NT is a preventable cause of mortality and neurological sequelae that occurs at higher incidence in resource-poor countries, presumably because of low maternal immunisation rates and unhygienic cord care practices. We aimed to determine changes in the incidence of NT, characterize and investigate the associated risk factors and mortality in a prospective cohort study including all admissions over a 15-year period at a County hospital on the Kenyan coast, a region with relatively high historical NT rates within Kenya.We assessed all neonatal admissions to Kilifi County Hospital in Kenya (1999-2013 and identified cases of NT (standard clinical case definition admitted during this time. Poisson regression was used to examine change in incidence of NT using accurate denominator data from an area of active demographic surveillance. Logistic regression was used to investigate the risk factors for NT and factors associated with mortality in NT amongst neonatal admissions. A subset of sera from mothers (n = 61 and neonates (n = 47 were tested for anti-tetanus antibodies.There were 191 NT admissions, of whom 187 (98% were home deliveries. Incidence of NT declined significantly (Incidence Rate Ratio: 0.85 (95% Confidence interval 0.81-0.89, P<0.001 but the case fatality (62% did not change over the study period (P = 0.536. Younger infant age at admission (P = 0.001 was the only independent predictor of mortality. Compared to neonatal hospital admittee controls, the proportion of home births was higher among the cases. Sera tested for antitetanus antibodies showed most mothers (50/61, 82% had undetectable levels of antitetanus antibodies, and most (8/9, 89% mothers with detectable antibodies had a neonate without protective levels.Incidence of NT in Kilifi County has significantly reduced, with reductions following immunisation campaigns. Our results suggest immunisation efforts are effective if sustained and efforts should continue to

  18. Using preventive home monitoring to reduce hospital admission rates and reduce costs

    DEFF Research Database (Denmark)

    Dinesen, Birthe; Hæsum, Lisa Korsbakke Emtekær; Sørensen, Natascha;

    2012-01-01

    We studied whether preventive home monitoring of patients with chronic obstructive pulmonary disease (COPD) could reduce the frequency of hospital admissions and lower the cost of hospitalization. Patients were recruited from a health centre, general practitioner (GP) or the pulmonary hospital ward....... They were randomized to usual care or tele-rehabilitation with a telehealth monitoring device installed in their home for four months. A total of 111 patients were suitable for inclusion and consented to be randomized: 60 patients were allocated to intervention and three were lost to follow......-up. In the control group 51 patients were allocated to usual care and three patients were lost to follow-up. In the tele-rehabilitation group, the mean hospital admission rate was 0.49 per patient per 10 months compared to the control group rate of 1.17; this difference was significant (P = 0.041). The mean cost...

  19. Discovery of Association Rules from University Admission System Data

    Directory of Open Access Journals (Sweden)

    Abdul Fattah Mashat

    2013-05-01

    Full Text Available Association rules discovery is one of the vital data mining techniques. Currently there is an increasing interest in data mining and educational systems, making educational data mining (EDM as a new growing research community. In this paper, we present a model for association rules discovery from King Abdulaziz University (KAU admission system data. The main objective is to extract the rules and relations between admission system attributes for better analysis. The model utilizes an apriori algorithm for association rule mining. Detailed analysis and interpretation of the experimental results is presented with respect to admission office perspective.

  20. Calle y Saberes en Movimiento

    Directory of Open Access Journals (Sweden)

    Laura Daniela Aguirre Aguilar

    2010-01-01

    Full Text Available En México el rezago, el ausentismo, la deserción escolar, el trabajo a temprana edad y el inicio de una vida en la calle, en repetidas ocasiones son consecuencia de un núcleo familiar desarticulado o de una débil relación intrafamiliar, así como de una condición socioeconómica en desventaja. Ante esta problemática, la Secretaría de Educación Pública, instancia gubernamental encargada de garantizar una educación de calidad para la población, trabaja coordinadamente con organizaciones de la sociedad civil e instancias públicas, para la reintegración a los espacios educativos de los niños, niñas y jóvenes en situación de calle.

  1. Differentiability of the Pritchard-Salamon systems with admissible state-feedback

    Institute of Scientific and Technical Information of China (English)

    YU Xin

    2005-01-01

    Many papers on a wide range of control problems for Pritchard-Salamon systems have appeared and many of its important mathematical and system theoretical properties have been revealed. This paper deals with the differentiability of the Pritchard-Salamon system with admissible state-feedback. Spectrum analysis showed that under definite condition, the unbounded perturbation semigroup of the Pritchard-Salamon system is eventually differentiable.

  2. Assessment of Impacts of Public Health Interventions on the SARS Epidemic in Beijing in Terms of the Intervals Between Its Symptom Onset, Hospital Admission, and Notification

    Institute of Scientific and Technical Information of China (English)

    WAN-NIAN LIANG; MIN LIU; QI CHEN; ZE-JUN LIU; XIONG HE; YUE PAN; XUE-QIN XIE

    2005-01-01

    Objectives To assess the impacts of public health interventions on the outbreak of SARS in Beijing by analyzing the intervals between symptom onset, hospital admission and notification of its cases. Methods Data of SARS cases reported from the Beijing Municipal Centers for Disease Prevention and Control (BCDC) were collected and analyzed by descriptive epidemiology. Results In the early epidemic period, the intervals between the disease onset and the hospital admission seemed irregular, so was the intervals between the hospital admission and the notification. After the middle ten days of April, the intervals turned out to be more regular, and the disordered situation in terms of the hospital admission and the case notification was gradually brought under control. Conclusions Public health interventions against SARS has revealed positive impacts on SARS control program in Beijing. The timing and sensitivity of epidemic information reporting systems has been greatly improved in Beijing as a result of successful fight against this disease.

  3. Ultrasound call detection in capybara

    Directory of Open Access Journals (Sweden)

    Selene S.C. Nogueira

    2012-07-01

    Full Text Available The vocal repertoire of some animal species has been considered a non-invasive tool to predict distress reactivity. In rats ultrasound emissions were reported as distress indicator. Capybaras[ vocal repertoire was reported recently and seems to have ultrasound calls, but this has not yet been confirmed. Thus, in order to check if a poor state of welfare was linked to ultrasound calls in the capybara vocal repertoire, the aim of this study was to track the presence of ultrasound emissions in 11 animals under three conditions: 1 unrestrained; 2 intermediately restrained, and 3 highly restrained. The ultrasound track identified frequencies in the range of 31.8±3.5 kHz in adults and 33.2±8.5 kHz in juveniles. These ultrasound frequencies occurred only when animals were highly restrained, physically restrained or injured during handling. We concluded that these calls with ultrasound components are related to pain and restraint because they did not occur when animals were free of restraint. Thus we suggest that this vocalization may be used as an additional tool to assess capybaras[ welfare.

  4. Efficient Admission Control for Next Generation Cellular Networks

    DEFF Research Database (Denmark)

    Ramkumar, Venkata; Stefan, Andrei Lucian; Nielsen, Rasmus Hjorth;

    2012-01-01

    in the MAC layer is done by considering the effects of adaptive modulation and coding (AMC) in the physical layer. Using the Markov model, the number of resources required by the new user is predicted by taking the QoS requirements of the user application and channel parameters into consideration...

  5. 22 CFR 217.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-04-01

    ... those skills are the factors that the test purports to measure); (ii) admissions tests that are designed... written questionnaire used for this purpose or makes clear orally if no written questionnaire is used...

  6. 49 CFR 1114.27 - Request for admission.

    Science.gov (United States)

    2010-10-01

    ... OF TRANSPORTATION RULES OF PRACTICE EVIDENCE; DISCOVERY Discovery § 1114.27 Request for admission. (a... of information or knowledge as a reason for failure to admit or deny unless he states that he...

  7. 16 CFR 1025.34 - Requests for admission.

    Science.gov (United States)

    2010-01-01

    ... PROCEEDINGS Discovery, Compulsory Process § 1025.34 Requests for admission. (a) Procedure for request. A party... and qualify or deny the remainder. An answering party may not give lack of information or knowledge...

  8. 14 CFR 121.547 - Admission to flight deck.

    Science.gov (United States)

    2010-01-01

    ... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.547 Admission to flight deck... holder. However, the certificate holder may not admit employees of traffic, sales, or other...

  9. 49 CFR 386.44 - Request for admissions.

    Science.gov (United States)

    2010-10-01

    ... serve upon any other party a request for admission of any relevant matter or the authenticity of any... other proceeding. (c) If a party refuses to admit a matter or the authenticity of a document which...

  10. 19 CFR 210.31 - Requests for admission.

    Science.gov (United States)

    2010-04-01

    ... TRADE ADJUDICATION AND ENFORCEMENT Discovery and Compulsory Process § 210.31 Requests for admission. (a... or deny unless he states that he has made reasonable inquiry and that the information known to...

  11. Admission to a psychiatric unit and changes in tobacco smoking

    Directory of Open Access Journals (Sweden)

    Owens David

    2008-05-01

    Full Text Available Abstract Smoking and withdrawal from smoking complicates the assessment and treatment of mental illness. We aimed to establish whether psychiatric inpatients smoke different amounts after admission than beforehand and, if so, to find out why. Forty-three inpatients on a working age adult psychiatry ward completed self-report questionnaires about smoking habits. Those who smoked a different amount after admission had a follow-up interview to find out why they thought this had occurred. The interview incorporated qualitative and quantitative aspects which were analysed accordingly. Fifty-six percent of participants were smokers before admission, rising to 70% afterwards. Of the smokers, 17% smoked less after admission, and 63% smoked more. The average number of cigarettes smoked per person per day increased from five to thirteen. The main reasons for smoking more were boredom, stress and the wish to socialise.

  12. Air pollution from biomass burning and asthma hospital admissions in a sugar cane plantation area in Brazil

    Science.gov (United States)

    Arbex, Marcos Abdo; Martins, Lourdes Conceição; de Oliveira, Regiani Carvalho; Pereira, Luiz Alberto Amador; Arbex, Flávio Ferlin; Cançado, José Eduardo Delfini; Saldiva, Paulo Hilário Nascimento; Braga, Alfésio Luís Ferreira

    2007-01-01

    Objective To evaluate the association between the total suspended particles (TSPs) generated from preharvest sugar cane burning and hospital admission due to asthma (asthma hospital admissions) in the city of Araraquara. Design An ecological time‐series study. Total daily records of asthma hospital admissions (ICD 10th J15) were obtained from one of the main hospitals in Araraquara, São Paulo State, Brazil, from 23 March 2003 to 27 July 2004. The daily concentration of TSP (μg/m3) was obtained using Handi‐vol equipment (Energética, Brazil) placed in downtown Araraquara. The local airport provided the daily mean figures of temperature and humidity. The daily number of asthma hospital admissions was considered as the dependent variable in Poisson's regression models and the daily concentration of TSP was considered the independent variable. The generalised linear model with natural cubic spline was adopted to control for long‐time trend. Linear terms were used for weather variables. Results TSP had an acute effect on asthma admissions, starting 1 day after TSP concentrations increased and remaining almost unchanged for the next four days. A 10 μg/m3 increase in the 5‐day moving average (lag1–5) of TSP concentrations was associated with an increase of 11.6% (95% CI 5.4 to 17.7) in asthma hospital admissions. Conclusion Increases in TSP concentrations were definitely associated with asthma hospital admissions in Araraquara and, despite using sugar cane alcohol to reduce air pollution from automotive sources in large Brazilian urban centres, the cities where sugar cane is harvested pay a high toll in terms of public health. PMID:17435205

  13. Prediction of mortality 1 year after hospital admission.

    LENUS (Irish Health Repository)

    Kellett, J

    2012-09-01

    Hospital admission, especially for the elderly, can be a seminal event as many patients die within a year. This study reports the prediction of death within a year of admission to hospital of the Simple Clinical Score (SCS) and ECG dispersion mapping (ECG-DM). ECG-DM is a novel technique that analyzes low-amplitude ECG oscillations and reports them as the myocardial micro-alternation index (MMI).

  14. RELATIONSHIP OF SUCCESS IN UNIVERSITY STUDY AND ADMISSION EXAM RESULTS

    OpenAIRE

    Poláčková, Julie

    2013-01-01

    The admission examinations represent a first important moment in academic education. If the admission proceedings really are expected to satisfy the intention to select those most capable and fittest candidates for study, proper attention has to be paid to them. Besides checking and confirming satisfactory levels of the results of secondary school studies they also should predict with sufficient reliability the academic success of study in the given branch. The paper brings research results c...

  15. Discovery of Association Rules from University Admission System Data

    OpenAIRE

    Abdul Fattah Mashat; Mohammed M. Fouad; Yu, Philip S.; Tarek F. Gharib

    2013-01-01

    Association rules discovery is one of the vital data mining techniques. Currently there is an increasing interest in data mining and educational systems, making educational data mining (EDM) as a new growing research community. In this paper, we present a model for association rules discovery from King Abdulaziz University (KAU) admission system data. The main objective is to extract the rules and relations between admission system attributes for better analysis. The model utilizes an apriori...

  16. [Compulsory admission to hospital in Tunisia: a necessary evolution].

    Science.gov (United States)

    Ellouze, Faten; Lahmar, Aymen; Beji, Rami; Dridi, Anis; Fadhel M'rad, Mohamed

    2015-01-01

    The evolution of the legislation governing compulsory admission to hospital in Tunisia is interesting for two reasons. The country's 2011 revolution notably brought about major changes to the legislative framework, from constitutional through to ordinary laws. At the same time, the current trend for globalisation is also affecting legislation: international laws, treaties and UN charters are imposed on the laws of individual countries. This article looks at how Tunisian law governing compulsory admission to hospital has had to evolve. PMID:26143219

  17. [Compulsory admission to hospital in Tunisia: a necessary evolution].

    Science.gov (United States)

    Ellouze, Faten; Lahmar, Aymen; Beji, Rami; Dridi, Anis; Fadhel M'rad, Mohamed

    2015-01-01

    The evolution of the legislation governing compulsory admission to hospital in Tunisia is interesting for two reasons. The country's 2011 revolution notably brought about major changes to the legislative framework, from constitutional through to ordinary laws. At the same time, the current trend for globalisation is also affecting legislation: international laws, treaties and UN charters are imposed on the laws of individual countries. This article looks at how Tunisian law governing compulsory admission to hospital has had to evolve.

  18. Hospital admissions: An examination of race and health insurance

    Directory of Open Access Journals (Sweden)

    Eric Gass

    2008-06-01

    Full Text Available This study examined the effects of racial differences and differences in insurance status on source of hospital admissions.  The data source was the 2001 National Hospital Discharge Survey and included a sub-sample of 104,185 patients.  58.3% of patients were admitted through the emergency room, 75.0% of patients were White, 19.7% were Black, and 61.5% were on government insurance or uninsured.  Black patients were found to have significantly higher levels of emergency room admissions (69.1%=p < .0001, regardless of insurance status (gov’t/self-pay, 73.7%=p < .0001, private insurance, 59.5%=p < .0001.  Patients on government insurance or self-payment had significantly higher levels of emergency room admissions (65.8%=p < .0001.  Regression analysis showed that both race and insurance type are significant predictors (p < .0001 of Source of Admission to the hospital.  Percent probabilities confirmed this finding.  Thus, it was concluded that racial differences witnessed in source of admission were not mediated by insurance type and that race and insurance type are significant, independent predictors of hospital admission source.

  19. Hospital admissions: An examination of race and health insurance

    Directory of Open Access Journals (Sweden)

    Eric Gass

    2008-06-01

    Full Text Available This study examined the effects of racial differences and differences in insurance status on source of hospital admissions. The data source was the 2001 National Hospital Discharge Survey and included a sub-sample of 104,185 patients. 58.3% of patients were admitted through the emergency room, 75.0% of patients were White, 19.7% were Black, and 61.5% were on government insurance or uninsured. Black patients were found to have significantly higher levels of emergency room admissions (69.1%=p < .0001, regardless of insurance status (gov’t/self-pay, 73.7%=p < .0001, private insurance, 59.5%=p < .0001. Patients on government insurance or self-payment had significantly higher levels of emergency room admissions (65.8%=p < .0001. Regression analysis showed that both race and insurance type are significant predictors (p < .0001 of Source of Admission to the hospital. Percent probabilities confirmed this finding. Thus, it was concluded that racial differences witnessed in source of admission were not mediated by insurance type and that race and insurance type are significant, independent predictors of hospital admission source.

  20. Daily diurnal variation in admissions for ruptured abdominal aortic aneurysms.

    LENUS (Irish Health Repository)

    Killeen, Shane

    2012-02-03

    BACKGROUND: Many vascular events, such as myocardial infarction and cerebrovascular accident, demonstrate a circadian pattern of presentation. Blood pressure is intimately related to these pathologies and is the one physiological variable consistently associated with abdominal aortic aneurysm rupture. It also demonstrates a diurnal variation. The purpose of this study was to determine if rupture of an abdominal aortic aneurysm (RAAA) exhibits a diurnal variation. METHODS: A retrospective cohort-based study was performed to determine the timing of presentation of RAAA to the vascular unit of Cork University Hospital over a 15-year period. Time of admission, symptom onset, and co-morbidities such as hypertension were noted. Fournier\\'s analysis and chi-squared analysis were performed. To ameliorate possible confounding factors, patients admitted with perforated peptic ulcers were examined in the same manner. RESULTS: A total of 148 cases of RAAA were identified, with a male preponderance (71.7% [124] male versus 29.3% [44] female patients) and a mean age of 74.4 +\\/- 7.2 years at presentation. 70.9% (105) were known to have hypertension, 52.2% (77) were current smokers, and 46.8% (69) were being treated for chronic obstructive airway disease (COAD). Time of symptom onset was recorded in 88.5% (131) of patients. There was a marked early morning peak in RAAA admissions, with the highest number of RAAA being admitted between 08.00 and 09.59. A second, smaller peak was observed at 14.00-15.59. These findings were suggestive of diurnal variation. [chi(2) =16.75, p < 0.003]. Some 40% (59) of patients were admitted between 00.00 and 06.00, an incidence significantly higher than for other time periods (06.00-12.00, 12.00-18.00, and 18.00-24.00) [chi(2) = 18.72; df = 3; p < 0.0003]. A significantly higher number of patients admitted between 00.00 and 06.00 were known hypertensives (chi(2) = 7.94; p < 0.05). CONCLUSIONS: The findings of this study suggest a distinct

  1. Advanced Call Center Supporting WAP Access

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Traditional call centers can be accessed via speech only, and the call center based on web provides both data and speech access, but it needs a powerful terminal-computer. By analyzing traditional call centers and call centers based on web, this paper presents the framework of an advanced call center supporting WAP access. A typical service is also described in detail.

  2. Results from Organizational Development Interventions in a Technology Call Center.

    Science.gov (United States)

    Workman, Michael

    2003-01-01

    Call center staff answered calls in 4 treatments: alignment job design (n=35), autonomous work teams (n=35), high-involvement work processes (n=43), and controls (n=36). Job satisfaction improved in alignment job design and high-involvement treatments, most significantly in the latter. Skill level and attitude toward autonomous work might have…

  3. How can I help you? User instructions in telephone calls

    NARCIS (Netherlands)

    Steehouder, Michael; Hartman, Daniel

    2003-01-01

    We a small corpus of instructions given in phone calls to customers who need support for programming their universal remote control, to make it suitable for their particular TV set VCR, Audio, etc. Typically, in these calls the operator or 'agent' coaches the client while the client is performing ac

  4. Weekend Admission in Patients with Acute Ischemic Stroke Is Not Associated with Poor Functional Outcome than Weekday Admission

    OpenAIRE

    Kim, Sang-Chul; Hong, Keun-Sik; Hwang, Seon-Il; KIM, Ji-Eun; Kim, Ah-Ro; Cho, Joong-Yang; Park, Hee Kyung; Park, Ji-Hyun; Koo, Ja-Seong; Park, Jong-Moo; Bae, Hee-Joon; Han, Moon-Ku; Kang, Dong-Wha; Oh, Mi-Sun; Yu, Kyung-Ho

    2012-01-01

    Background and Purpose Stroke requires consistent care, but there is concern over the "weekend effect", whereby a weekend admission results in a poor outcome. Our aim was to determine the impact of weekend admission on clinical outcomes in patients with acute ischemic stroke in Korea. Methods The outcomes of patients admitted on weekdays and weekends were compared by analyzing data from a prospective outcome registry enrolling 1247 consecutive patients with acute ischemic stroke admitted to f...

  5. Ambient particle source apportionment and daily hospital admissions among children and elderly in Copenhagen

    DEFF Research Database (Denmark)

    Andersen, Zorana Jovanovic; Wahlin, P.; Raaschou-Nielsen, Ole;

    2007-01-01

    An association between particulate air pollution and morbidity and mortality is well established. However, little is known about which sources of particulate matter contribute most to the adverse health effects. Identification of responsible sources would merit more efficient control. For a 6-year...... period (01 January 1999 to 31 December 2004), we examined associations between urban background PM(10) in the presence of gaseous pollutants (CO, NO(2)) and hospital admissions due to cardiovascular and respiratory disease in the elderly (age>/=65), and asthma in children (age 5-18) in Copenhagen......, Denmark. We further studied associations between fractions of PM(10) assigned to six sources (biomass, secondary, oil, crustal, sea salt, and vehicle) and admissions during a 1(1/2) -year campaign. We used Poisson generalized additive time-series model adjusted for season, day of the week, public holidays...

  6. A distributed admission approach based on marking mechanism over Bluetooth best-effort network

    DEFF Research Database (Denmark)

    Son, L.T.; Schiøler, Henrik; Madsen, Ole Brun

    2002-01-01

    The end-to-end Quality of Service delivered in Bluetooth networks depends on a large number of parameters at different levels, e.g. link capacity, packet delays, etc, which are requested in certain patterns and controlled by various algorithms. In this paper, a method of adaptive distributed...... admission with end-to-end Quality of Service (QoS) provisions based marking information for real time and non real time traffics in Bluetooth networks is highlighted, its mathematical background is analyzed and a simulation with bursty traffic sources, Interrupted Bernoulli Process (IBP), is carried out....... The simulation results show that the performance of Bluetooth network is improved when applying the distributed admission method....

  7. Differential Effects of Temperature Extremes on Hospital Admission Rates for Respiratory Disease between Indigenous and Non-Indigenous Australians in the Northern Territory.

    Science.gov (United States)

    Green, Donna; Bambrick, Hilary; Tait, Peter; Goldie, James; Schultz, Rosalie; Webb, Leanne; Alexander, Lisa; Pitman, Andrew

    2015-12-03

    The health gap between Indigenous and non-Indigenous Australians may be exacerbated by climate change if temperature extremes have disproportionate adverse effects on Indigenous people. To explore this issue, we analysed the effect of temperature extremes on hospital admissions for respiratory diseases, stratified by age, Indigenous status and sex, for people living in two different climates zones in the Northern Territory during the period 1993-2011. We examined admissions for both acute and chronic respiratory diagnoses, controlling for day of the week and seasonality variables. Our analysis showed that: (1) overall, Indigenous hospital admission rates far exceeded non-Indigenous admission rates for acute and chronic diagnoses, and Top End climate zone admission rates exceeded Central Australia climate zone admission rates; (2) extreme cold and hot temperatures were associated with inconsistent changes in admission rates for acute respiratory disease in Indigenous and non-Indigenous children and older adults; and (3) no response to cold or hot temperature extremes was found for chronic respiratory diagnoses. These findings support our two hypotheses, that extreme hot and cold temperatures have a different effect on hospitalisations for respiratory disease between Indigenous and non-Indigenous people, and that these health risks vary between the different climate zones. We did not, however, find that there were differing responses to temperature extremes in the two populations, suggesting that any increased vulnerability to climate change in the Indigenous population of the Northern Territory arises from an increased underlying risk to respiratory disease and an already greater existing health burden.

  8. Predicting carriage with extended-spectrum beta-lactamase-producing bacteria at hospital admission : A cross-sectional study

    NARCIS (Netherlands)

    Platteel, T. N.; Leverstein-van Hall, M. A.; Cohen Stuart, J. W.; Thijsen, S. F T; Mascini, E. M.; van Hees, B. C.; Scharringa, J.; Fluit, A. C.; Bonten, M. J M

    2015-01-01

    The prevalence of patients colonized with extended-spectrum beta-lactamase (ESBL)-producing bacteria increases, especially in long-term-care facilities (LTCFs). Identification of ESBL carriers at hospital admission is relevant for infection control measures and antibiotic therapy for nosocomial infe

  9. Handbook for the College Admissions Profession. The Greenwood Educators' Reference Collection.

    Science.gov (United States)

    Swann, Claire C., Ed.; Henderson, Stanley E., Ed.

    The 19 chapters of this book on college admissions are divided into six sections on: (1) perspectives and history, (2) the admissions officer, (3) understanding enrollment management, (4) admissions tools, (5) admissions programs, and (6) perspectives on the twenty-first century. The papers are: "Perspectives on Educational Reform" (Donald…

  10. Reciprocity of mobile phone calls

    CERN Document Server

    Kovanen, Lauri; Kaski, Kimmo

    2010-01-01

    We present a study of the reciprocity of human behaviour based on mobile phone usage records. The underlying question is whether human relationships are mutual, in the sense that both are equally active in keeping up the relationship, or is it on the contrary typical that relationships are lopsided, with one party being significantly more active than the other. We study this question with the help of a mobile phone data set consisting of all mobile phone calls between 5.3 million customers of a single mobile phone operator. It turns out that lopsided relations are indeed quite common, to the extent that the variation cannot be explained by simple random deviations or by variations in personal activity. We also show that there is no non-trivial correlation between reciprocity and local network density.

  11. Emergency team calls for critically ill non-trauma patients in the emergency department

    DEFF Research Database (Denmark)

    Jensen, Søren Marker; Do, Hien Quoc; Rasmussen, Søren W.;

    2015-01-01

    BACKGROUND: Handling critically ill patients is a complex task for Emergency Department (ED) personnel. Initial treatment is of major importance and requires adequately experienced ED doctors to initiate and decide for the right medical or surgical treatment. Our aim was, with regard to clinical...... presentation, management and mortality to describe adult non-trauma patients that upon ED arrival elicited emergency team calls. METHODS: An observational study of adult patients (≥ 18 years) admitted to a regional ED with conditions that elicited acute team activation and additional emergency team...... consultation calls for non-ED specialist physicians. Emergency team calls were two-tiered with 'orange' and 'red' calls. Additionally, intensive care unit (ICU) admission charts were reviewed to identify the total number of adult non-trauma and non-cardiac arrest patients admitted to the ICU from the ED during...

  12. Does mental health service integration affect compulsory admissions?

    Directory of Open Access Journals (Sweden)

    André I. Wierdsma

    2009-09-01

    Full Text Available Background: Over recent years, the number of compulsory admissions in many countries has increased, probably as a result of the shift from inpatient to outpatient mental health care. This might be mitigated by formal or collaborative relationships between services. Methods: In a retrospective record linkage study, we compared two neighboring districts, varying in level of service integration. Two periods were combined: 1991–1993 and 2001–2003. We included patients aged 18–60, who had a first emergency compulsory admission (n=830. Their psychiatric history was assessed, and service-use after admission was monitored over a 12-month follow-up. Results: Over a 10-year period, compulsory admission rates increased by 47%. Difference in relative increase between the integrated and non-integrated services was 14%. Patient characteristics showed different profiles in the two districts. Length of stay was >10 days shorter in the integrated district, where the proportion of involuntary readmissions decreased more, and where aftercare was swift and provided to about 10% more patients than in the non-integrated district. Conclusions: Services outcomes showed better results where mental healthcare was more integrated. However, limited effects were found and other factors than integration of services may be more important in preventing compulsory admissions.

  13. Potential Utility of Non-Cognitive Constructs in Graduate Admissions

    Science.gov (United States)

    Miller, Casey

    2015-03-01

    It is becoming clear that the methods employed by many graduate admissions committees need updating. Regarding outcomes, we cannot select students that will actually graduate much better than would a coin toss. Further, the GRE is often misused. For example, the most recent GRE general test data (2006-2007) shows that for US citizens in the physical sciences, a cut-off score of ~64th percentile (700/155 on old/new test) would eliminate from eligibility: 63% of women vs 42% of men; 76% of all under-represented minorities vs 38% of Asian and 47% of White applicants. Fortunately, Organizational Psychologists have identified and validated several ``non-cognitive constructs'' for admissions: aspects of personality (conscientiousness); and self-management factors. Some intriguing facts about these parameters: they are measurable with the help of social scientists; they do not show race/ethnicity/gender performance differences; they are orthogonal to cognitive metrics measured by GPA and tests scores. These are proven to enhance both validity and diversity in admissions. My goals for this talk are to overview the non-cognitive constructs with the most potential for being used in physics graduate admissions, and to suggest example admissions protocols. Supported by the National Science Foundation.

  14. Caregivers' perceptions of coercion in psychiatric hospital admission.

    Science.gov (United States)

    Ranieri, Veronica; Madigan, Kevin; Roche, Eric; Bainbridge, Emma; McGuinness, David; Tierney, Kevin; Feeney, Larkin; Hallahan, Brian; McDonald, Colm; O'Donoghue, Brian

    2015-08-30

    While knowledge on service users' perspective on their admissions to psychiatric wards has improved substantially in the last decade, there is a paucity of knowledge of the perspectives of caregivers. This study aimed to determine caregiver's perception of the levels of perceived coercion, perceived pressures and procedural justice experienced by service users during their admission to acute psychiatric in-patient units. The perspective of caregivers were then compared to the perspectives of their related service users, who had been admitted to five psychiatric units in Ireland. Caregivers were interviewed using an adapted version of the MacArthur admission experience interview. Sixty-six caregivers participated in this study and the majority were parents. Seventy one percent of service users were admitted involuntarily and nearly half had a diagnosis of schizophrenia or schizoaffective disorder. Caregivers of involuntarily admitted individuals perceived the service users' admission as less coercive than reported by the service users. Caregivers also perceived a higher level of procedural justice in comparison to the level reported by service users. Reducing the disparity of perceptions between caregivers and service users could result in caregivers having a greater understanding of the admission process and why some service users may be reluctant to be admitted. PMID:26163727

  15. Researching Applicants Online in the Veterinary Program Admissions Process: Perceptions, Practices, and Implications for Curricular Change.

    Science.gov (United States)

    Kogan, Lori R; Hellyer, Peter W; Stewart, Sherry M; Hendrickson, Dean A; Dowers, Kristy L; Schoenfeld-Tacher, Regina

    2015-01-01

    As the use of social media websites continues to grow among adults 18-34 years old, it is necessary to examine the consequences of online disclosure to the veterinary admissions processes and to consider the effects on the professional integrity of veterinary schools and on the e-professionalism of DVM graduates. Prior research has shown that employers, across all fields, routinely use information from social media sites to make hiring decisions. In veterinary medicine, a little over one-third of private practitioners reported using online information in the selection of new associates. However, professional academic programs appear to use online information less frequently in the selection processes. The current study examines the behaviors and attitudes of veterinary medical admissions committees toward the use of applicants' online information and profiles in their recruitment and selection process. An online survey was distributed to Associate Deans for Academic Affairs at all AAVMC-affiliated schools of veterinary medicine. A total of 21 schools completed the survey. The results showed that most veterinary schools do not currently use online research in their admissions process; however, most admissions committee members feel that using online social networking information to investigate applicants is an acceptable use of technology. Previous research has suggested that the majority of veterinary student applicants view this as an invasion of their privacy. Given this discordance, future educational efforts should focus on helping veterinary students determine what type of information is appropriate for posting online and how to use privacy settings to control their sharing behaviors. PMID:26291414

  16. Traumatic injuries: radiological hemostatic intervention at admission

    Energy Technology Data Exchange (ETDEWEB)

    Dondelinger, R.F.; Trotteur, G.; Ghaye, B.; Szapiro, D. [Department of Medical Imaging, University Hospital Sart Tilman, Liege (Belgium)

    2002-05-01

    Blunt trauma victims and selected patients with penetrating trauma are systematically investigated after resuscitation and hemodynamic stabilization with cross-sectional imaging. Computed tomography is a good predictor of the need for hemostatic arteriographic embolization, based on contrast medium extravasation observed on CT. In centers admitting polytrauma patients, the CT and angiography units should be installed together within the emergency environment. Trauma-dedicated interventional radiologists should be on call for optimal patient management. Posttraumatic retroperitoneal and pelvic bleeding is a primary indication for angiographic hemostasis, together with orthopedic fixation of pelvic bone fractures. Angiography should be carried out rapidly, before the patient decompensates for considerable blood loss. In patients with visceral bleeding, arterial embolization can obviate primary surgery or potentializes surgical intervention and contributes to changing hierarchy of injuries to be treated surgically. Failure to achieve primary hemostasis may occur according to the type of specific organ injury and coagulation and metabolic parameters of the patient. Postembolization complications are few and are usually non-life-threatening and rarely carry definitive sequelae. (orig.)

  17. Socioeconomic status, lung function and admission to hospital for COPD

    DEFF Research Database (Denmark)

    Prescott, E; Lange, P; Vestbo, J

    1999-01-01

    This study analysed the effect of education and income on development of chronic obstructive pulmonary disease (COPD) assessing lung function and hospital admission. The study population consisted of 14,223 subjects, aged 20-90 yrs, randomly sampled from the population of Copenhagen in 1976....... Association between socioeconomic factors and forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) at study entry was analysed by linear regression. The relation between socioeconomic factors and risk of admission to hospital for COPD from study entry until 1993 was assessed...... by age. A total of 219 females and 265 males were admitted to hospital for COPD during follow-up. Education and income were significantly associated with admission to hospital. After detailed adjustment for smoking the relative risks (95% confidence intervals) for medium and high versus low socioeconomic...

  18. Asymptotic admissibility of priors and elliptic differential equations

    CERN Document Server

    Hartigan, J A

    2010-01-01

    We evaluate priors by the second order asymptotic behavior of the corresponding estimators.Under certain regularity conditions, the risk differences between efficient estimators of parameters taking values in a domain D, an open connected subset of R^d, are asymptotically expressed as elliptic differential forms depending on the asymptotic covariance matrix V. Each efficient estimator has the same asymptotic risk as a 'local Bayes' estimate corresponding to a prior density p. The asymptotic decision theory of the estimators identifies the smooth prior densities as admissible or inadmissible, according to the existence of solutions to certain elliptic differential equations. The prior p is admissible if the quantity pV is sufficiently small near the boundary of D. We exhibit the unique admissible invariant prior for V=I,D=R^d-{0). A detailed example is given for a normal mixture model.

  19. Evaluation of a Medical and Mental Health Unit compared with standard care for older people whose emergency admission to an acute general hospital is complicated by concurrent 'confusion': a controlled clinical trial. Acronym: TEAM: Trial of an Elderly Acute care Medical and mental health unit

    Directory of Open Access Journals (Sweden)

    Gladman John RF

    2011-05-01

    Full Text Available Abstract Background Patients with delirium and dementia admitted to general hospitals have poor outcomes, and their carers report poor experiences. We developed an acute geriatric medical ward into a specialist Medical and Mental Health Unit over an eighteen month period. Additional specialist mental health staff were employed, other staff were trained in the 'person-centred' dementia care approach, a programme of meaningful activity was devised, the environment adapted to the needs of people with cognitive impairment, and attention given to communication with family carers. We hypothesise that patients managed on this ward will have better outcomes than those receiving standard care, and that such care will be cost-effective. Methods/design We will perform a controlled clinical trial comparing in-patient management on a specialist Medical and Mental Health Unit with standard care. Study participants are patients over the age of 65, admitted as an emergency to a single general hospital, and identified on the Acute Medical Admissions Unit as being 'confused'. Sample size is 300 per group. The evaluation design has been adapted to accommodate pressures on bed management and patient flows. If beds are available on the specialist Unit, the clinical service allocates patients at random between the Unit and standard care on general or geriatric medical wards. Once admitted, randomised patients and their carers are invited to take part in a follow up study, and baseline data are collected. Quality of care and patient experience are assessed in a non-participant observer study. Outcomes are ascertained at a follow up home visit 90 days after randomisation, by a researcher blind to allocation. The primary outcome is days spent at home (for those admitted from home, or days spent in the same care home (if admitted from a care home. Secondary outcomes include mortality, institutionalisation, resource use, and scaled outcome measures, including quality of

  20. Advanced Call Center Supporting WAP Access

    Institute of Scientific and Technical Information of China (English)

    YUANXiao-hua; CHENJun-liang

    2001-01-01

    Traditional call centers can be accessed via speech only, and the call center based on web provides both da-ta and speech access,but it needs a powerful terminal-computer.By analyzing traditional call centers and call cen-ters based on web, this paper presents the framework of an advanced call center supporting WAP access.A typical service is also described in detail.

  1. The Influence of Judgment Calls on Meta-Analytic Findings.

    Science.gov (United States)

    Tarrahi, Farid; Eisend, Martin

    2016-01-01

    Previous research has suggested that judgment calls (i.e., methodological choices made in the process of conducting a meta-analysis) have a strong influence on meta-analytic findings and question their robustness. However, prior research applies case study comparison or reanalysis of a few meta-analyses with a focus on a few selected judgment calls. These studies neglect the fact that different judgment calls are related to each other and simultaneously influence the outcomes of a meta-analysis, and that meta-analytic findings can vary due to non-judgment call differences between meta-analyses (e.g., variations of effects over time). The current study analyzes the influence of 13 judgment calls in 176 meta-analyses in marketing research by applying a multivariate, multilevel meta-meta-analysis. The analysis considers simultaneous influences from different judgment calls on meta-analytic effect sizes and controls for alternative explanations based on non-judgment call differences between meta-analyses. The findings suggest that judgment calls have only a minor influence on meta-analytic findings, whereas non-judgment call differences between meta-analyses are more likely to explain differences in meta-analytic findings. The findings support the robustness of meta-analytic results and conclusions. PMID:27055205

  2. The Influence of Judgment Calls on Meta-Analytic Findings.

    Science.gov (United States)

    Tarrahi, Farid; Eisend, Martin

    2016-01-01

    Previous research has suggested that judgment calls (i.e., methodological choices made in the process of conducting a meta-analysis) have a strong influence on meta-analytic findings and question their robustness. However, prior research applies case study comparison or reanalysis of a few meta-analyses with a focus on a few selected judgment calls. These studies neglect the fact that different judgment calls are related to each other and simultaneously influence the outcomes of a meta-analysis, and that meta-analytic findings can vary due to non-judgment call differences between meta-analyses (e.g., variations of effects over time). The current study analyzes the influence of 13 judgment calls in 176 meta-analyses in marketing research by applying a multivariate, multilevel meta-meta-analysis. The analysis considers simultaneous influences from different judgment calls on meta-analytic effect sizes and controls for alternative explanations based on non-judgment call differences between meta-analyses. The findings suggest that judgment calls have only a minor influence on meta-analytic findings, whereas non-judgment call differences between meta-analyses are more likely to explain differences in meta-analytic findings. The findings support the robustness of meta-analytic results and conclusions.

  3. Drug-related hospital admissions in a generic pharmaceutical system.

    Science.gov (United States)

    Zargarzadeh, A H; Emami, M H; Hosseini, F

    2007-01-01

    1. Generically based pharmaceutical systems exist in a few countries of the world, such as Iran. Most developed countries have free market pharmaceutical systems. Drug-related problems (DRP) have been reported mostly in the Western world but few data are available for generic systems. In this study, we tried to measure the prevalence of drug-related problems leading to hospital admissions in Isfahan, Iran. 2. One thousand consecutive hospital admissions in three major teaching hospitals were studied for a period of 6 months for the presence of DRP as a cause of hospital admissions. Two subcategories of DRP were considered: (i) drug therapy failure; and (ii) adverse drug reactions. Preventability and outcome measures were also assessed. Medications responsible for DRP were classified according to the Anatomic Therapeutic Chemical (ATC) classification of the World Health Organization. 3. Of the 1000 admissions studied, 115 (11.5%) were owing to DRP, 81% as a result of drug therapy failure and 19% as adverse drug reactions. A total of 106 out of the 115 DRP cases (92%) were either preventable or probably preventable, most of which had to do with either prescriber or patient error. An overview of DRP showed that 58.3% resulted in complete recovery, 33.9% in relative recovery and 7.8% in death. Close to 1% of hospital admissions resulted in DRP-related deaths. 4. The overall prevalence of hospital admissions caused by DRP is similar to that in free market pharmaceutical systems. The high preventability rate of these problems should alert clinicians and policy makers to design strategies to curtail this. Also, reasons for differences in subtypes of DRP between the results of this study and those of the literature from free market systems needs to be investigated further.

  4. Variability of intensive care admission decisions for the very elderly.

    Directory of Open Access Journals (Sweden)

    Ariane Boumendil

    Full Text Available UNLABELLED: Although increasing numbers of very elderly patients are requiring intensive care, few large sample studies have investigated ICU admission of very elderly patients. Data on pre triage by physicians from other specialities is limited. This observational cohort study aims at examining inter-hospital variability of ICU admission rates and its association with patients' outcomes. All patients over 80 years possibly qualifying for ICU admission who presented to the emergency departments (ED of 15 hospitals in the Paris (France area during a one-year period were prospectively included in the study. Main outcome measures were ICU eligibility, as assessed by the ED and ICU physicians; in-hospital mortality; and vital and functional status 6 months after the ED visit. 2646 patients (median age 86; interquartile range 83-91 were included in the study. 94% of participants completed follow-up (n = 2495. 12.4% (n = 329 of participants were deemed eligible for ICU admission by ED physicians and intensivists. The overall in-hospital and 6-month mortality rates were respectively 27.2% (n = 717 and 50.7% (n = 1264. At six months, 57.5% (n = 1433 of patients had died or had a functional deterioration. Rates of patients deemed eligible for ICU admission ranged from 5.6% to 38.8% across the participating centers, and this variability persisted after adjustment for patients' characteristics. Despite this variability, we found no association between level of ICU eligibility and either in-hospital death or six-month death or functional deterioration. In France, the likelihood that a very elderly person will be admitted to an ICU varies widely from one hospital to another. Influence of intensive care admission on patients' outcome remains unclear. TRIAL REGISTRATION: ClinicalTrials.gov NCT00912600.

  5. Admissible consensus for heterogeneous descriptor multi-agent systems

    Science.gov (United States)

    Yang, Xin-Rong; Liu, Guo-Ping

    2016-09-01

    This paper focuses on the admissible consensus problem for heterogeneous descriptor multi-agent systems. Based on algebra, graph and descriptor system theory, the necessary and sufficient conditions are proposed for heterogeneous descriptor multi-agent systems achieving admissible consensus. The provided conditions depend on not only the structure properties of each agent dynamics but also the topologies within the descriptor multi-agent systems. Moreover, an algorithm is given to design the novel consensus protocol. A numerical example demonstrates the effectiveness of the proposed design approach.

  6. Adherence to inhaled therapy, mortality and hospital admission in COPD

    DEFF Research Database (Denmark)

    Vestbo, J; Anderson, J A; Calverley, P M A;

    2009-01-01

    between adherence and mortality remained unchanged and statistically significant after adjusting for other factors related to prognosis (hazard ratio 0.40 (95% CI 0.35 to 0.46), p... adherence and hospital admission remained unchanged and significant in a multivariate analysis (rate ratio 0.58 (95% CI 0.44 to 0.73, p... was more pronounced in patients with good adherence than in those with poor adherence. CONCLUSION: Adherence to inhaled medication is significantly associated with reduced risk of death and admission to hospital due to exacerbations in COPD. Further research is needed to understand these strong...

  7. Lie-admissible structure of Hamilton's original equations with external terms

    International Nuclear Information System (INIS)

    As a necessary additional step in preparation of our operator studies of closed nonhamiltonian systems, in this note we consider the algebraic structure of the original equations proposed by Lagrange and Hamilton, those with external terms representing precisely the contact nonpotential forces of the interior dynamical problem. We show that the brackets of the theory violate the conditions to characterize any algebra. Nevertheless, when properly written, they characterize a covering of the Lie-isotopic algebras called Lie-admissible algebras. It is indicated that a similar occurrence exists for conventional operator treatments, e.g. for nonconservative nuclear cases characterized by nonhermitean Hamiltonians. This occurrence then prevents a rigorous treatment of basic notions, such as that of angular momentum and spin spin, which are centrally dependent on the existence of a consistent algebraic structure. The emergence of the Lie-admissible algebras is therefore expected to be unavoidable for any rigorous operator treatment of open systems with nonlinear, nonlocal and nonhamiltonian external forces. (author). 14 refs, 1 fig

  8. The function of migratory bird calls

    DEFF Research Database (Denmark)

    Reichl, Thomas; Andersen, Bent Bach; Larsen, Ole Næsbye;

    and indicating a stable and constant course were observed successively through an infrared camera in a circular sound transparent cage placed in the natural magnetic field inside an echo attenuated room at night during spring. Two linear arrays of five loudspeakers placed orthogonally about 1.2 meters above...... the experimental bird could be activated successively to simulate a migrating Robin cruising E-W, W-E, S-N or N-S at a chosen height (mostly about 40 m), at 10 m/s and emitting Robin flight calls of 80 dB(A) at 1 m. The simulated flight of a "ding" sound served as a control. During an experiment the bird was first...... for 30-60 minutes. Thirdly, the stimulus was switched off and the bird was observed for 30-60 minutes until, fourthly, "flights" of the opposite sound was performed for 30-60 minutes along the same axis. Finally, the bird was observed without sound stimulus. Our results indicate that flight calls...

  9. Hand Hygiene Saves Lives: Patient Admission Video

    Centers for Disease Control (CDC) Podcasts

    2008-05-01

    This podcast is for hospital patients and visitors. It emphasizes two key points to help prevent infections: the importance of practicing hand hygiene while in the hospital, and that it's appropriate to ask or remind healthcare providers to practice hand hygiene.  Created: 5/1/2008 by National Center for Preparedness, Detection, and Control of Infectious Diseases (NCPDCID).   Date Released: 6/19/2008.

  10. Rising rates of hospital admissions for atrial fibrillation

    DEFF Research Database (Denmark)

    Friberg, Jens; Buch, Nina Pernille Gardshodn; Scharling, Henrik;

    2003-01-01

    Atrial fibrillation is a common arrhythmia associated with excess morbidity and mortality. We studied temporal changes in hospital admission rates for atrial fibrillation using data from a prospective population-based cohort study spanning 2 decades (the Copenhagen City Heart Study)....

  11. Theory-Based University Admissions Testing for a New Millennium

    Science.gov (United States)

    Sternberg, Robert J.

    2004-01-01

    This article describes two projects based on Robert J. Sternberg's theory of successful intelligence and designed to provide theory-based testing for university admissions. The first, Rainbow Project, provided a supplementary test of analytical, practical, and creative skills to augment the SAT in predicting college performance. The Rainbow…

  12. The Effects of Air Pollution on Ischemic Stroke Admission Rate.

    Science.gov (United States)

    Alimohammadi, Hossein; Fakhri, Sara; Derakhshanfar, Hojjat; Hosseini-Zijoud, Seyed-Mostafa; Safari, Saeed; Hatamabadi, Hamid Reza

    2016-01-01

    The present study aimed to determine the relationship between the level of air pollutants and the rate of ischemic stroke (IS) admissions to hospitals. In this retrospective cross-sectional study, stroke admissions (January-March 2012 and 2013) to an emergency department and air pollution and meteorological data were gathered. The relationship between air pollutant levels and hospital admission rates were evaluated using the generalize additive model. In all 379 patients with IS were referred to the hospital (52.5% male; mean age 68.2±13.3 years). Both transient (p<0.001) and long-term (p<0.001) rises in CO level increases the risk of IS. Increased weekly (p<0.001) and monthly (p<0.001) average O3 levels amplifies this risk, while a transient increase in NO2 (p<0.001) and SO2 (p<0.001) levels has the same effect. Long-term changes in PM10 (p<0.001) and PM2.5 (p<0.001) also increase the risk of IS. The findings showed that the level of air pollutants directly correlates with the number of stroke admissions to the emergency department. PMID:26866000

  13. Increased Guillain-Barre Syndrome Admissions in Shiraz, Southern Iran

    Directory of Open Access Journals (Sweden)

    Seyed Taghi Heydari

    2013-01-01

    Full Text Available Background: Guillain-Barre syndrome (GBS is an acute immune-mediated peripheral neuropathy usually after an incident. This study was performed to investigate the basic epidemiologic features of GBS in south of Iran.Methods: We studied consecutive patients with GBS in Namazi Hospital of Shiraz, southern Iran. Demographic characteristics of the subjects, i.e. age, sex, and length of hospital stay were extracted. Information regarding yearly admissions for the entire hospital was also gathered. The prevalence of GBS per 10,000 hospital admissions was calculated and stratified by sex and year. Yearly prevalence was compared using the odds ratio (OR and 95% confidence intervals (CI.Results: From January 2000 to December 2009, 389 (232 males and 157 females patients with GBS were admitted in our center. The mean age of patients was 29.8 ± 23.0 years and their mean length of hospital stay was 12.9 ± 11.6 days. The overall mortality rate was 6%. The ratio of admissions due to GBS to the total admissions was significantly higher in 2009, the year of an influenza A (H1N1 virus pandemic.Conclusion: There appears to be an increase in the incidence of GBS in Shiraz. This is in parallel with the increasing trend of some other autoimmune diseases.

  14. Institutional Admissions Policies in Higher Education: A Widening Participation Perspective

    Science.gov (United States)

    Greenbank, Paul

    2006-01-01

    Purpose: This article analyses how higher education institutions (HEIs) have responded to government policy to increase the participation rates of students from lower social classes through their admissions policies. Design/methodology/approach: The article uses documentary evidence and interviews with institutional policy makers to examine HEI…

  15. Procedures for Facilitating the Admission of Blacks to Law School.

    Science.gov (United States)

    Uhl, Norman P.; Pratt, Linda K.

    The Law School at North Carolina Central University faced the dual problem of improving student performance on the bar examination while maintaining a large percentage of black students. The Law School Admission Test (LSAT) was found to be the single best predictor of student performance on the bar examination. However, if only the students…

  16. Off-hours admission and quality of hip fracture care

    DEFF Research Database (Denmark)

    Kristiansen, Nina Sahlertz; Kristensen, Pia Kjær; Nørgård, Bente Mertz;

    2016-01-01

    OBJECTIVE: Higher risks of adverse outcomes have been reported for patients admitted acutely during off-hours. However, in relation to hip fracture, the evidence is inconsistent. We examined whether time of admission influenced compliance with performance measures, surgical delay and 30-day morta...... the excess 30-day mortality. CONCLUSIONS: Patients admitted off-hours and on-hours received similar quality of care. The risk of surgical delay and 30 days mortality was higher among patients admitted during weekends; explanations need to be clarified.......OBJECTIVE: Higher risks of adverse outcomes have been reported for patients admitted acutely during off-hours. However, in relation to hip fracture, the evidence is inconsistent. We examined whether time of admission influenced compliance with performance measures, surgical delay and 30-day.......01 [95% CI: 0.99-1.02]. When comparing admission on weekdays (evenings and nights vs. days), off-hours admission was associated with a lower risk of surgical delay (adjusted OR 0.75 [95% CI: 0.66-0.85]) while no differences in 30-day mortality was found (adjusted OR 0.91 [95% CI: 0.80-1.04]. When...

  17. Investigating the Reliability of the Medical School Admissions Interview

    Science.gov (United States)

    Kreiter, Clarence D.; Yin, Ping; Solow, Catherine; Brennan, Robert L.

    2004-01-01

    Purpose: Determining the valid and fair use of the interview for medical school admissions is contingent upon a demonstration of the reproducibility of interview scores. This study seeks to establish the generalizability of interview scores, first assessing the existing research evidence, and then analyzing data from a non-experimental independent…

  18. A Normative Code of Conduct for Admissions Officers

    Science.gov (United States)

    Hodum, Robert L.

    2012-01-01

    The increasing competition for the desired quantity and quality of college students, along with the rise of for-profit institutions, has amplified the scrutiny of behavior and ethics among college admissions professionals and has increased the need for meaningful ethical guidelines and codes of conduct. Many other areas of responsibility within…

  19. A Content Analysis of Medical School Admissions Interviews

    Directory of Open Access Journals (Sweden)

    Elizabeth M. Altmaier

    2003-04-01

    Full Text Available Introduction. Prospective medical school applicants use Internet websites to gain information about medical school interviews as well as to offer their experience in such interviews. This study examined applicants’ reported experiences of interviews and compared them to the purposes of the interview as purported by medical schools. Method. Content analysis of student feedback regarding medical school interviews at 161 medical schools was conducted for entries of over 4600 students applying to medical school who anonymously and voluntarily completed an online questionnaire. Results. Across all medical schools, nearly one half of all cited interview questions addressed non-cognitive characteristics of the applicants. Top ranked medical schools were reported to ask significantly more interpersonal and illegal questions and fewer academic/general knowledge questions than other medical schools. Lower ranked schools did not differ significantly in the types of questions reportedly asked applicants compared to other medical schools. Discussion. Medical school interviews are generally gathering types of information about applicants that admissions personnel identify as important in the admission decision. In addition to measuring interpersonal characteristics, medical school admissions interviews are assessing cognitive abilities and ethical decision-making. Sources on the Internet provide actual medical school interview questions to prospective students. This practice can help them gain an undue advantage in interviewing. Admissions committees and faculty who interview students may want to consider how best to obtain accurate and valid responses from applicants.

  20. 78 FR 62415 - Refugee Admissions for Fiscal Year 2014

    Science.gov (United States)

    2013-10-21

    ... in the Federal Register. (Presidential Sig.) THE WHITE HOUSE, Washington, October 2, 2013 [FR Doc... Documents#0;#0; ] Presidential Determination No. 2014-01 of October 2, 2013 Refugee Admissions for Fiscal... up to 70,000 refugees to the United States during fiscal year (FY) 2014 is justified by...

  1. Obstetric admissions to ICUs in Finland: A multicentre study.

    Science.gov (United States)

    Seppänen, Pia; Sund, Reijo; Roos, Mervi; Unkila, Riitta; Meriläinen, Merja; Helminen, Mika; Ala-Kokko, Tero; Suominen, Tarja

    2016-08-01

    In this study, the objective was to describe and analyse reasons for obstetric admissions to the ICU, severity of illness, level and types of interventions, adverse events and patient outcomes. In a retrospective database study, we identified 291 obstetric patients during pregnancy and puerperium from four Finnish university hospitals. Most were admitted in the post-partum period and hypertensive disorders were the main indications for admissions, followed by obstetric haemorrhage. The median length of stay was 21hours. The most common intervention was blood transfusion and mechanical ventilation was required in nearly one fifth of the patients. Three patients had a prolonged stay and nine had re-admissions. One maternal death was recorded. This study found that severity of illness and organ failure scores describe the obstetric patient as having a good probability of recovery and a short length of stay. However, the obstetric patients reason for admission and their type of delivery were associated with both the severity of illness scores and level of intervention required. Those admitted for non-obstetric reasons and having had a vaginal delivery demonstrated higher severity of illness scores, organ failure scores, and levels of intervention when compared to those admitted for obstetric reasons or those who had delivered by caesarean section. In conclusion, care of these patients can be improved by understanding the severity of illness scores, common ICU interventions and patient outcomes. PMID:27209560

  2. Pediatric Type 1 Diabetes: Reducing Admission Rates for Diabetes Ketoacidosis

    Science.gov (United States)

    Choi, Steven; Rinke, Michael L.; Vandervoot, Kathy; Heptulla, Rubina A.

    2016-01-01

    Background: Diabetes ketoacidosis (DKA) is a life-threatening complication of type 1 diabetes mellitus (T1DM). Reducing DKA admissions in children with T1DM requires a coordinated, comprehensive management plan. We aimed to decrease DKA admissions, 30-day readmissions, and length of stay (LOS) for DKA admissions. Methods: A multipronged intervention was designed in 2011 to reach all patients: (1) increase insulin pump use and basal-bolus regimen versus sliding scales, (2) transform educational program, (3) increased access to medical providers, and (4) support for patients and families. A before-after study was conducted comparing performance outcomes in years 2007-2010 (preintervention) to 2012-2014 (postintervention) using administrative data and Wilcoxon rank sum and Fischer exact tests. Results: DKA admissions decreased by 44% postintervention (16.7 vs 9.3 per 100 followed patient-years; P = .006), unique patient 30-day readmissions decreased from 20% to 5% postintervention (P = .001), and median LOS significantly decreased postintervention (P < .0001). Although not an original goal of the study, median hemoglobin A1C of a subset of the population transitioned from sliding scale decreased, 10.3% to 8.9% (P < .02). Conclusions: When clinical and widespread program interventions were used, significant reductions in DKA hospitalizations, 30-day readmissions, and LOS occurred for pediatric T1DM. Continuous performance improvement efforts are needed for improving DKA outcomes. PMID:27749721

  3. 34 CFR 104.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-07-01

    ... purports to measure); (ii) admissions tests that are designed for persons with impaired sensory, manual, or..., Provided, That: (1) The recipient states clearly on any written questionnaire used for this purpose or makes clear orally if no written questionnaire is used that the information requested is intended...

  4. 7 CFR 15b.30 - Admissions and recruitment.

    Science.gov (United States)

    2010-01-01

    ... factors that the test purports to measure); (ii) admissions tests that are designed for persons with... they are handicapped: Provided, That (1) the recipient states clearly on any written questionnaire used for this purpose or makes clear orally if no written questionnaire is used that the...

  5. 45 CFR 1170.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-10-01

    ... factors that the test purports to measure); (ii) Admissions tests that are designed for persons with... they are handicapped, provided, that: (1) The recipient states clearly on any written questionnaire used for this purpose or makes clear orally if no written questionnaire is used that the...

  6. 15 CFR 8b.20 - Admission and recruitment.

    Science.gov (United States)

    2010-01-01

    ...); (ii) admissions tests that are designed for persons with impaired sensory, manual, or speaking skills... are handicapped, Provided, That: (1) The recipient states clearly on any written questionnaire used for this purpose or makes clear orally, if no written questionnaire is used, that the...

  7. Using Technology in Undergraduate Admission: A Student Perspective

    Science.gov (United States)

    Lindbeck, Robin; Fodrey, Brian

    2010-01-01

    The relationship that currently exists between undergraduate admission, technology and the Millennial generation continues to be an area of constant change. As technology trends come-and-go and resources continue to be limited, what are colleges and universities doing to ensure they are being as effective and efficient as possible when it comes to…

  8. Continuous admission to primary school and mental health problems

    NARCIS (Netherlands)

    Reijneveld, S.A.; Wiefferink, C.H.; Brugman, E.; Verhulst, F.C.; Verloove-Vanhorick, S.P.; Paulussen, T.G.W.

    2006-01-01

    Background: Younger children in a school class have higher rates of mental health problems if admission to primary school occurs once a year. This study examines whether this relative age effect also occurs if children are admitted to school continuously throughout the year. Methods: We assessed men

  9. Relationship Between Standardized Admissions Variables and Certain Interpersonal Skills

    Science.gov (United States)

    Hurst, Michael W.; Shatkin, Stephen D.

    1974-01-01

    An admissions model was developed that included standardized intellective and nonintellective variables. It was found that linear combinations of grade point average, quality of undergraduate college, major area of study, and recommendations and work experience were generally unrelated to pre- or post-training ratings of empathy, respect, and…

  10. The Effects of Extrinsic Rewards on Admissions Counselors' Performance

    Science.gov (United States)

    Gardner-Engel, Miriam

    2010-01-01

    This study examines the best ways to motivate college admissions counselors. A review of literature revealed multiple perspectives on intrinsic and extrinsic as well as tangible and intangible rewards. Primary research was designed to examine the impact of tangible rewards and verbal reinforcements with a convenience sample of nine college…

  11. Topological vector spaces admissible in economic equilibrium theory

    DEFF Research Database (Denmark)

    Keiding, Hans

    2009-01-01

    In models of economic equilibrium in markets with infinitely many commodities, the commodity space is an ordered topological vector space endowed with additional structure. In the present paper, we consider ordered topological vector spaces which are admissible (for equilibrium analysis) in the s...

  12. 28 CFR 549.41 - Voluntary admission and psychotropic medication.

    Science.gov (United States)

    2010-07-01

    ... medication. 549.41 Section 549.41 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE INSTITUTIONAL MANAGEMENT MEDICAL SERVICES Administrative Safeguards for Psychiatric Treatment and Medication § 549.41 Voluntary admission and psychotropic medication. (a) A sentenced inmate may be...

  13. "Flags and Slots": Special Interest Groups and Selective Admissions.

    Science.gov (United States)

    Lang, Katherine E.; Lang, Daniel W.

    2002-01-01

    Combines two studies, from institutional and student perspectives, to determine the role played by special interest group membership in college admissions. Findings indicate how and why special interest group selection works, and show that it is widely used. Findings also indicate that although applicants are aware of the process, their perception…

  14. 8 CFR 101.1 - Presumption of lawful admission.

    Science.gov (United States)

    2010-01-01

    ..., expressly or impliedly, of the 4th or 9th provisos to section 3 of that act. (j) Erroneous admission as... section 4(a) 1924 Act nonquota immigration visa issued in accordance with State Department regulations... as a United States citizen pursuant to a State Department or Service determination based upon a...

  15. Reduction in accounts receivable begins before patient admission.

    Science.gov (United States)

    Francis, J M

    1985-11-01

    In this case study, a 362-bed teaching hospital reduced its accounts receivable from 80 to 59 days. The keys to success were management commitment, clear communication of goals and objectives among hospital departments, attention to the patient's account prior to admission, and emphasis on education for employees who deal with the public. PMID:10274114

  16. Happily Homeschooling Teens: High School Requirements & College Admissions.

    Science.gov (United States)

    Cohen, Cafi

    This booklet is the fifth in a series designed to assist parents who are home-schooling their adolescent children and deals with high school requirements and college admissions. The articles in this booklet are: (1) "'How Do We Know When We're Done?'," concerning criteria for high school graduation, college recommendations, and evaluating…

  17. 42 CFR 32.86 - Admissions to Service facilities.

    Science.gov (United States)

    2010-10-01

    ... EXAMINATIONS MEDICAL CARE FOR PERSONS WITH HANSEN'S DISEASE AND OTHER PERSONS IN EMERGENCIES Persons with Hansen's Disease § 32.86 Admissions to Service facilities. Any person with Hansen's disease who presents... suitable for the accommodation of persons with Hansen's disease....

  18. Confronting the Categories: Equitable Admissions without Apartheid Race Classification

    Science.gov (United States)

    Erasmus, Z.

    2010-01-01

    South Africa's government requires information on apartheid race classification to implement and monitor racial redress. This has sparked resistance to race classification as a criterion for redress in higher education admissions. I argue that (1) jettisoning apartheid race categories now in favour of either class or "merit" would set back the few…

  19. 28 CFR 551.103 - Procedure for admission.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Procedure for admission. 551.103 Section 551.103 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE INSTITUTIONAL MANAGEMENT...; and (3) Opportunity for shower and hair care; (h) Orientation; (i) Opportunity for waiver of right...

  20. 8 CFR 235.11 - Admission of conditional permanent residents.

    Science.gov (United States)

    2010-01-01

    ... alien entrepreneur (as defined in section 216A(f)(1) of the Act) or the spouse or unmarried minor child of an alien entrepreneur shall be admitted conditionally for a period of 2 years. At the time of admission, the alien shall be notified that the principal alien (entrepreneur) must file a Form...

  1. 8 CFR 1235.11 - Admission of conditional permanent residents.

    Science.gov (United States)

    2010-01-01

    ... immigrant visa as an alien entrepreneur (as defined in section 216A(f)(1) of the Act) or the spouse or unmarried minor child of an alien entrepreneur shall be admitted conditionally for a period of 2 years. At the time of admission, the alien shall be notified that the principal alien (entrepreneur) must file...

  2. Does mental health service integration affect compulsory admissions?

    NARCIS (Netherlands)

    A.I. Wierdsma (André); C.L. Mulder (Niels)

    2009-01-01

    textabstractAbstract. BACKGROUND: Over recent years, the number of compulsory admissions in many countries has increased, probably as a result of the shift from inpatient to outpatient mental health care. This might be mitigated by formal or collaborative relationships between services. METHODS: In

  3. Minish Named Interim Head of Admissions at Virginia Tech

    OpenAIRE

    Virginia Tech News

    2004-01-01

    Roberta M.Minish, of Blacksburg, Va., associate dean emeritus of Virginia Tech's former College of Human Sciences and Education, has been named interim director of undergraduate admissions at the university, effective Jan. 19. She fills the position left vacant in December with the resignation of Karen Torgersen.

  4. Should Universities Be Permitted to Set Their Own Admission Criteria?

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    For high school students in Shanghai, this year's college admission process is a bit different from that in previous years. Locally based Fudan University and Shanghai Jiaotong University (Jiaoda) have been allowed to make some changes in their enrollment procedures. In addition to taking an independently designed entrance exam

  5. Admission Policies and the Quality of University Education in Nigeria

    Science.gov (United States)

    Okoroma, N. S.

    2008-01-01

    The population of Nigeria is 140 million according to the last 2006 census. Only 75 Universities are available to cater to this population with one University for 1,866,000 people. The inability of the available Universities in Nigeria to cope with the high demand for University education has put much pressure on University admissions. In order to…

  6. Predictors of Specialized Inpatient Admissions for Adults with Intellectual Disability

    Science.gov (United States)

    Modi, Miti; McMorris, Carly; Palucka, Anna; Raina, Poonam; Lunsky, Yona

    2015-01-01

    Individuals with intellectual disability (ID) have complex mental health needs and may seek specialized ID psychiatric services. This study reports on predictors of specialized inpatient admissions for 234 individuals with ID who received outpatient services at a psychiatric hospital. Overall, from 2007-2012, 55 of the 234 outpatients were triaged…

  7. Effect of admission hypertriglyceridemia on the episodes of severe acute pancreatitis

    Institute of Scientific and Technical Information of China (English)

    Li-Hui Deng; Ping Xue; Qing Xia; Xiao-Nan Yang; Mei-Hua Wan

    2008-01-01

    AIM: To investigate the effect of admission hypertriglyceridemia (HTG) on the episodes of severe acute pancreatitis (SAP).METHODS: One hundred and seventy-six patients with SAP were divided into HTG group (n = 45) and control group (n = 131) according to admission triglyceride (TG) ≥ 5.65 mmol/L and < 5.65 mmol/L,respectively. Demographics, etiology, underlying diseases, biochemical parameters, Ranson's score,acute physiology and chronic heath evaluation Ⅱ(APACHE Ⅱ) score, Balthazar's computed tomography (CT) score, complications and mortality were compared. Correlation between admission TG and 24-h APACHE Ⅱ score was analyzed.RESULTS: SAP patients with HTG were younger (40.8±9.3 years vs 52.6 ± 13.4 years, P < 0.05) with higher etiology rate of overeating, high-fat diet (40.0% vs 14.5%, P < 0.05) and alcohol abuse (46.7%vs 23.7%, P < 0.01), incidence rate of hypocalcemia (86.7% vs 63.4%, P < 0.01) and hypoalbuminemia (84.4% vs 60.3%, P < 0.01), 24-h APACHE 1/ score (13.6±5.7 vs 10.7 ± 4.6, P < 0.01) and admission serum glucose (17.7 ± 7.7 vs 13.4 ± 6.1, P < 0.01),complication rate of renal failure (51.1% vs 16.8%, P <0.01), shock (37.9% vs 14.5%, P < 0.01) and infection (37.4% vs 18.3%, P < 0.01) and mortality (13.1% vs9.1%, P < 0.01). Logistic regression analysis showed a positive correlation between admission TG and 24-h APACHE Ⅱ score (r = 0.509, P = 0.004).CONCLUSION: The clinical features of SAP patients with HTG are largely consistent with previous studies.HTG aggravates the episodes of SAR.

  8. Well Being and Job Satisfaction Among Call Centre Agents

    DEFF Research Database (Denmark)

    Wiegman, Inger Marie; Mathiesen, Karen; Møller, Niels

    2004-01-01

    A survey among 774 agents in four large Danish companies in house call centres shows that working in a call center is stressfull. Lack of control and autonomy, lack of potentiality and challenges, conflict between qualitative and quantitative demands and monitoring all have an adverse effect on job...... satisfaction. The survey reveals a need for improving working conditions and for development of the work as such in call centres. The survey suggests that the agents both want to participate in the process of development and that they can contribute to the process in a competent way. In the project as part...

  9. Relation between admission blood glucose levels and in-hospital and one year mortality in non-diabetic acute myocardial infarction patients

    Directory of Open Access Journals (Sweden)

    A Andishmand

    2006-01-01

    Full Text Available Introduction: Several studies have evaluated the association of admission blood glucose levels and short and long term mortality after myocardial infarction and have had different results. The aim of this study was evaluation of association between admission blood glucose levels and in-hospital and one year mortality in non-diabetic patients with AMI. Methods: In this study, demographic, clinical and Para clinical data of 120 non-diabetic patients with AMI on admission was collected and analyzed. The patients were followed for one year. Blood glucose level ≥ 140 mg/dl was defined as hyperglycemia. Results: 78% of patients were men. The mean age and admission blood glucose level was 63+13 years and 146+76mg/dl, respectively. Death due to cardio vascular causes was seen in 20% of patients in hospital and 9.8% during the one year follow up. The mean admission blood glucose level in patients who died in hospital was significantly more than live patients and also had an influence on the in-hospital outcome. Every 100mg/dl increase in blood glucose level was associated with 11% increase in in-hospital mortality risk in non-diabetic patients. Conclusion: Our results demonstrate that admission blood glucose level is a good marker for diagnosing patients with worse prognosis after AMI. We suggest that later studies should focus on optimal control of hyperglycemia with insulin in patients with AMI.

  10. Specialty-specific admission: a cost-effective intervention?

    LENUS (Irish Health Repository)

    Slattery, E

    2012-02-01

    INTRODUCTION: Cost effectiveness of healthcare has become an important component in its delivery. Current practices need to be assessed and measured for variations that may lead to financial savings. Speciality specific admission is known not only to lead improved clinical outcomes but also to lead important cost reductions. METHODS: All patients admitted to an Irish teaching hospital via the emergency department over a 2-year period with a gastroenterology (GI) related illness were included in this analysis.GI illness was classified using the Disease related grouping (DRG) system. Mean length of stay (LOS) and patient level costing (PLC) were calculated. Differences between DRGs with respect to speciality (i.e. specialist vs. non-specialist) were calculated for the five commonest DRGs. RESULTS: Significant variations in LOS and PLC were demonstrated in the DRGs. Mean LOS varied with increasing complexity, from 3.2 days for non-complex GI haemorrhage to 14.4 days for complex alcohol related cirrhosis as expected. A substantial difference in LOS within DRG groups was demonstrated by large standard deviations in the mean (up to 8.1 days in some groups) and was independent of complexity of cases. PLC also varied widely in both complex and non-complex cases with standard deviations of up to 17,342 noted. Specialty-specific admission was associated with shorter LOS for most GI admissions. CONCLUSION: Significant disparity exists for both LOS and PLC for most GI diagnoses. Specialty-specific admissions are associated with reduced LOS. Specialty-specific admission would appear to be cost-effective which may also lead to improved clinical outcomes.

  11. Admission glycaemia and outcome in patients with acute coronary syndrome.

    Science.gov (United States)

    Müdespacher, Damaris; Radovanovic, Dragana; Camenzind, Edoardo; Essig, Manfred; Bertel, Osmund; Erne, Paul; Eberli, Franz Robert; Gutzwiller, Felix

    2007-12-01

    Some studies of patients with acute myocardial infarction have reported that hyperglycaemia at admission may be associated with a worse outcome. This study sought to evaluate the association of blood glucose at admission with the outcome of unselected patients with acute coronary syndrome (ACS). Using the Acute Myocardial Infarction and unstable angina in Switzerland (AMIS Plus) registry, ACS patients were stratified according to their blood glucose on admission: group 1: 2.80-6.99 mmol/L, group 2: 7.00-11.09 mmol/L and group 3: > 11.10 mmol/L. Odds ratios for in-hospital mortality were calculated using logistic regression models. Of 2,786 patients, 73% were male and 21% were known to have diabetes. In-hospital mortality increased from 3% in group 1 to 7% in group 2 and to 15% in group 3. Higher glucose levels were associated with larger enzymatic infarct sizes (p<0.001) and had a weak negative correlation with angiographic or echographic left ventricular ejection fraction. High admission glycaemia in ACS patients remains a significant independent predictor of in-hospital mortality (adjusted OR 1.08; 95% confidence intervals [CI] 1.05-1.14, p<0.001) per mmol/L. The OR for in-hospital mortality was 1.04 (95% CI 0.99-1.1; p=0.140) per mmol/L for patients with diabetes but 1.21 (95% CI 112-1.30; p<0.001) per mmol/L for non-diabetic patients. In conclusion, elevated glucose level in ACS patients on admission is a significant independent predictor of in-hospital mortality and is even more important for patients who do not have known diabetes.

  12. Analysis of a hospital call center

    OpenAIRE

    Budak, Ezel Ezgi

    2012-01-01

    Ankara : The Department of Industrial Engineering and the Graduate School of Engineering and Science of Bilkent University, 2012. Thesis (Master's) -- Bilkent University, 2012. Includes bibliographical refences. In this thesis, we study the call center operations of a particular hospital located in Ankara, namely Güven Hospital. The hospital call center takes role as a medical consulting and appointment center and also domestic call traffic flows over the call center. These ...

  13. Nest predation and the evolution of nestling begging calls

    OpenAIRE

    Briskie, J. V.; Martin, P R; Martin, T E

    1999-01-01

    Begging by nestling birds can be conspicuous and loud. Such displays are thought to function in signalling nestling condition and securing parental care, but they also may inadvertently attract the attention of predators. We compared the structure of nestling begging calls to the risk of predation among 24 species of birds breeding in a forest community in central Arizona. After controlling for body size and phylogeny, we found that species subject to greater nest predation had calls with hig...

  14. Apparent temperature and cause-specific emergency hospital admissions in Greater Copenhagen, Denmark

    DEFF Research Database (Denmark)

    Wichmann, Janine; Andersen, Zorana; Ketzel, Matthias;

    2011-01-01

    One of the key climate change factors, temperature, has potentially grave implications for human health. We report the first attempt to investigate the association between the daily 3-hour maximum apparent temperature (Tapp(max)) and respiratory (RD), cardiovascular (CVD), and cerebrovascular (CBD......) emergency hospital admissions in Copenhagen, controlling for air pollution. The study period covered 1 January 2002-31 December 2006, stratified in warm and cold periods. A case-crossover design was applied. Susceptibility (effect modification) by age, sex, and socio-economic status was investigated...

  15. Reducing Patient Placement Errors in Emergency Department Admissions: Right Patient, Right Bed

    Directory of Open Access Journals (Sweden)

    Niels K. Rathlev

    2014-09-01

    Full Text Available Introduction: Because lack of inpatient capacity is associated with emergency department (ED crowding, more efficient bed management could potentially alleviate this problem. Our goal was to assess the impact of involving a patient placement manager (PPM early in the decision to hospitalize ED patients. The PPMs are clinically experienced registered nurses trained in the institution-specific criteria for correct unit and bed placement. Methods: We conducted two pilot studies that included all patients who were admitted to the adult hospital medicine service: 1 10/24 to 11/22/2010 (30 days; and 2 5/24 to 7/4/2011 (42 days. Each pilot study consisted of a baseline control period and a subsequent study period of equal duration. In each pilot we measured: 1 the number of “lateral transfers” or assignment errors in patient placement, 2 median length of stay (LOS for “all” and “admitted” patients and 3 inpatient occupancy. In pilot 2, we added as a measure code 44s, i.e. status change from inpatient to observation after patients are admitted, and also equipped all emergency physicians with portable phones in order to improve the efficiency of the process. Results: In pilot 1, the number of “lateral transfers” (incorrect patient placement assignments during the control period was 79 of the 854 admissions (9.3% versus 27 of 807 admissions (3.3% during the study period (P<0.001. We found no statistically significant differences in inpatient occupancy or ED LOS for “all” or for “admitted” patients. In pilot 2, the number of “lateral transfers” was 120 of 1,253 (9.6% admissions in the control period and 42 of 1,229 (3.4% admissions in the study period (P<0.001. We found a 49-minute (352 vs. 401 minutes decrease in median LOS for “admitted” ED patients during the study period compared with the control period (P=0.04. The code 44 rates, median LOS for “all” patients and inpatient occupancy did not change. Conclusion

  16. Telephony Over IP: A QoS Measurement-Based End to End Control Algorithm

    Directory of Open Access Journals (Sweden)

    Luigi Alcuri

    2004-12-01

    Full Text Available This paper presents a method for admitting voice calls in Telephony over IP (ToIP scenarios. This method, called QoS-Weighted CAC, aims to guarantee Quality of Service to telephony applications. We use a measurement-based call admission control algorithm, which detects network congested links through a feedback on overall link utilization. This feedback is based on the measures of packet delivery latencies related to voice over IP connections at the edges of the transport network. In this way we introduce a close loop control method, which is able to auto-adapt the quality margin on the basis of network load and specific service level requirements. Moreover we evaluate the difference in performance achieved by different Queue management configurations to guarantee Quality of Service to telephony applications, in which our goal was to evaluate the weight of edge router queue configuration in complex and real-like telephony over IP scenario. We want to compare many well-know queue scheduling algorithms, such as SFQ, WRR, RR, WIRR, and Priority. This comparison aims to locate queue schedulers in a more general control scheme context where different elements such as DiffServ marking and Admission control algorithms contribute to the overall Quality of Service required by real-time voice conversations. By means of software simulations we want to compare this solution with other call admission methods already described in scientific literature in order to locate this proposed method in a more general control scheme context. On the basis of the results we try to evidence the possible advantages of this QoS-Weighted solution in comparison with other similar CAC solutions ( in particular Measured Sum, Bandwidth Equivalent with Hoeffding Bounds, and Simple Measure CAC, on the planes of complexity, stability, management, tune-ability to service level requirements, and compatibility with actual network implementation.

  17. On an Optimal -Control Problem in Coefficients for Linear Elliptic Variational Inequality

    Directory of Open Access Journals (Sweden)

    Olha P. Kupenko

    2013-01-01

    Full Text Available We consider optimal control problems for linear degenerate elliptic variational inequalities with homogeneous Dirichlet boundary conditions. We take the matrix-valued coefficients in the main part of the elliptic operator as controls in . Since the eigenvalues of such matrices may vanish and be unbounded in , it leads to the “noncoercivity trouble.” Using the concept of convergence in variable spaces and following the direct method in the calculus of variations, we establish the solvability of the optimal control problem in the class of the so-called -admissible solutions.

  18. Call packing bound for overflow loss systems

    NARCIS (Netherlands)

    N.M. van Dijk; E. van der Sluis

    2009-01-01

    Finite loss queues with overflow naturally arise in a variety of communications structures. For these systems, there is no simple analytic expression for the loss probability. This paper proves and promotes easily computable bounds based on the so-called call packing principle. Under call packing, a

  19. Call packing bounds for overflow queues

    NARCIS (Netherlands)

    N.M. van Dijk; E. van der Sluis

    2004-01-01

    Finite queueing loss systems are studied with overflow. For these systems there is no simple analytic expression for the loss probability or throughput. This paper aims to prove and promote easily computable bounds as based upon the so-called call packing principle. Under call packing a standard pro

  20. HOW TO CALL THE CERN FIRE BRIGADE

    CERN Multimedia

    2001-01-01

    The telephone numbers of the CERN Fire Brigade are: 74444 for emergency calls 74848 for other calls Note The number 112 will stay in use for emergency calls from 'wired' telephones, however, from mobile phones it leads to non-CERN emergency services.

  1. HOW TO CALL THE CERN FIRE BRIGADE

    CERN Multimedia

    2002-01-01

    The telephone numbers of the CERN Fire Brigade are: 74444 for emergency calls 74848 for other calls Note The number 112 will stay in use for emergency calls from 'wired' telephones, however, from mobile phones it leads to non-CERN emergency services.  

  2. How to call the Fire Brigade

    CERN Multimedia

    2003-01-01

    The telephone numbers for the CERN Fire Brigade are: 74444 for emergency calls 74848 for other calls Note The number 112 will stay in use for emergency calls from "wired" telephones, however, from mobile phones it leads to non-CERN emergency services.

  3. HOW TO CALL THE CERN FIRE BRIGADE

    CERN Multimedia

    2002-01-01

    The telephone numbers of the CERN Fire Brigade are: 74444 for emergency calls 74848 for other calls Note The number 112 will stay in use for emergency calls from 'wired' telephones, however, from mobile phones it leads to non-CERN emergency services.

  4. HOW TO CALL THE CERN FIRE BRIGADE

    CERN Multimedia

    2001-01-01

    The telephone numbers of the CERN Fire Brigade are: 74444 for emergency calls 74848 for other calls Note: the number 112 will stay in use for emergency calls from 'wired' telephones, however, from mobile phones it leads to non-CERN emergency services.

  5. Wide Variability in Emergency Physician Admission Rates: A Target to Reduce Costs Without Compromising Quality

    Directory of Open Access Journals (Sweden)

    Jeffrey J. Guterman

    2016-09-01

    Full Text Available Introduction: Attending physician judgment is the traditional standard of care for emergency department (ED admission decisions. The extent to which variability in admission decisions affect cost and quality is not well understood. We sought to determine the impact of variability in admission decisions on cost and quality. Methods: We performed a retrospective observational study of patients presenting to a university-affiliated, urban ED from October 1, 2007, through September 30, 2008. The main outcome measures were admission rate, fiscal indicators (Medicaid-denied payment days, and quality indicators (15- and 30-day ED returns; delayed hospital admissions. We asked each Attending to estimate their inpatient admission rate and correlated their personal assessment with actual admission rates. Results: Admission rates, even after adjusting for known confounders, were highly variable (15.2%-32.0% and correlated with Medicaid denied-payment day rates (p=0.038. There was no correlation with quality outcome measures (30-day ED return or delayed hospital admission. There was no significant correlation between actual and self-described admission rate; the range of mis-estimation was 0% to 117%. Conclusion: Emergency medicine attending admission rates at this institution are highly variable, unexplained by known confounding variables, and unrelated to quality of care, as measured by 30-day ED return or delayed hospital admission. Admission optimization represents an important untapped potential for cost reduction through avoidable hospitalizations, with no apparent adverse effects on quality.

  6. Use of Disease Staging and analysis of untimely admissions in the Abruzzo Region, Italy: implications for clinical management

    Directory of Open Access Journals (Sweden)

    Lamberto Manzoli

    2004-06-01

    Full Text Available

    Dear Sir;
    The Section of Epidemiology and Public Health of the University “G. d’Annunzio” of Chieti, in collaboration with the Centre for Research in Medical Education and Health Care of Jefferson Medical College, Philadelphia, PA, USA, has analysed 350,000 hospital admissions for the year 2001 in the Abruzzo region. Four diseases were chosen for an in-depth analysis. These were: diabetes mellitus;
    cholecystitis/cholelithiasis; cancer of the female breast and bacterial pneumonia.The total admissions for these conditions were 11,000.
    Using the Disease Staging methodology to control for severity, a number of variables were analysed:
    length of hospital stay, hospital mortality, complications and repeated admissions. In addition, the timeliness of hospitalisation was analysed by grouping admissions into three categories: premature or medically unnecessary, timely, and late.An example of the first type is a patient with an elevated blood sugar but no other complications (Stage 1 Diabetes Mellitus.

  7. Utility of admission physiology in the surgical triage of isolated ballistic battlefield torso trauma

    Directory of Open Access Journals (Sweden)

    Jonathan J Morrison

    2012-01-01

    Full Text Available Background: An assessment of hemodynamic stability is central to surgical decision-making in the management of battlefield ballistic torso trauma (BBTT. Aims: To analyse the utility of admission physiological parameters in characterising hemodynamic stability. Settings and Design: A retrospective analysis of consecutive admissions, with BBTT, to forward surgical facility in Afghanistan. Materials and Methods: The cohorts′ admission physiology, need for operative intervention, and mortality data were collected retrospectively. The cohort was divided into patients requiring surgery for Life-Threatening Torso Hemorrhage (LTTH and those not requiring immediate surgery (non-LTTH. Statistical Analysis: Parameters were compared using two sample t tests, Mann-Whitney, Fisher′s exact, and Chi-square tests. Receiver operator characteristic curves were used to identify significant parameters and determine optimum cut-off values. Results: A total of 103 patients with isolated BBTT were identified: 44 in the LTTH group and 59 in the non-LTTH group. The mean New Injury Severity Score ± Standard Deviation (NISS±SD was 28±14 and 13±12, respectively. The heart rate, systolic blood pressure (SBP, pulse pressure, shock index (SI=heart rate/SBP and base excess were analysed. SI correlated best with the need for surgical torso hemorrhage control, P<0.05. An optimal cut-off of 0.9 was identified, producing a positive and negative predictive value of 81% and 82%, respectively. Conclusions: Shock index (SI is a useful parameter for helping military surgeons triage BBTT, identifying patients requiring operative torso hemorrhage control. SI performance requires a normal physiological response to hypovolemia, and thus should always be considered in clinical context.

  8. Bonobos extract meaning from call sequences.

    Directory of Open Access Journals (Sweden)

    Zanna Clay

    Full Text Available Studies on language-trained bonobos have revealed their remarkable abilities in representational and communication tasks. Surprisingly, however, corresponding research into their natural communication has largely been neglected. We address this issue with a first playback study on the natural vocal behaviour of bonobos. Bonobos produce five acoustically distinct call types when finding food, which they regularly mix together into longer call sequences. We found that individual call types were relatively poor indicators of food quality, while context specificity was much greater at the call sequence level. We therefore investigated whether receivers could extract meaning about the quality of food encountered by the caller by integrating across different call sequences. We first trained four captive individuals to find two types of foods, kiwi (preferred and apples (less preferred at two different locations. We then conducted naturalistic playback experiments during which we broadcasted sequences of four calls, originally produced by a familiar individual responding to either kiwi or apples. All sequences contained the same number of calls but varied in the composition of call types. Following playbacks, we found that subjects devoted significantly more search effort to the field indicated by the call sequence. Rather than attending to individual calls, bonobos attended to the entire sequences to make inferences about the food encountered by a caller. These results provide the first empirical evidence that bonobos are able to extract information about external events by attending to vocal sequences of other individuals and highlight the importance of call combinations in their natural communication system.

  9. Vital Signs Predict Rapid-Response Team Activation within Twelve Hours of Emergency Department Admission

    Directory of Open Access Journals (Sweden)

    James M. Walston

    2016-05-01

    Full Text Available Introduction: Rapid-response teams (RRTs are interdisciplinary groups created to rapidly assess and treat patients with unexpected clinical deterioration marked by decline in vital signs. Traditionally emergency department (ED disposition is partially based on the patients’ vital signs (VS at the time of hospital admission. We aimed to identify which patients will have RRT activation within 12 hours of admission based on their ED VS, and if their outcomes differed. Methods: We conducted a case-control study of patients presenting from January 2009 to December 2012 to a tertiary ED who subsequently had RRT activations within 12 hours of admission (early RRT activations. The medical records of patients 18 years and older admitted to a non-intensive care unit (ICU setting were reviewed to obtain VS at the time of ED arrival and departure, age, gender and diagnoses. Controls were matched 1:1 on age, gender, and diagnosis. We evaluated VS using cut points (lowest 10%, middle 80% and highest 10% based on the distribution of VS for all patients. Our study adheres to the STROBE (Strengthening the Reporting of Observational Studies in Epidemiology guidelines for reporting observational studies. Results: A total of 948 patients were included (474 cases and 474 controls. Patients who had RRT activations were more likely to be tachycardic (odds ratio [OR] 2.02, 95% CI [1.25-3.27], tachypneic (OR 2.92, 95% CI [1.73-4.92], and had lower oxygen saturations (OR 2.25, 95% CI [1.42-3.56] upon arrival to the ED. Patients who had RRT activations were more likely to be tachycardic at the time of disposition from the ED (OR 2.76, 95% CI [1.65-4.60], more likely to have extremes of systolic blood pressure (BP (OR 1.72, 95% CI [1.08-2.72] for low BP and OR 1.82, 95% CI [1.19-2.80] for high BP, higher respiratory rate (OR 4.15, 95% CI [2.44-7.07] and lower oxygen saturation (OR 2.29, 95% CI [1.43-3.67]. Early RRT activation was associated with increased healthcare

  10. The association between weather conditions and stroke admissions in Turkey

    Science.gov (United States)

    Çevik, Yunsur; Doğan, Nurettin Özgür; Daş, Murat; Ahmedali, Asliddin; Kul, Seval; Bayram, Hasan

    2015-07-01

    Although several factors such as cigarette smoking, blood pressure, diabetes, obesity, hypercholesterolemia, physical inactivity and dietary factors have been well documented to increase the risk for stroke, there are conflicting data about the role of meteorological variables in the etiology of stroke. We conducted a retrospective study to investigate the association between weather patterns, including daily temperature, humidity, wind speed, and air pressure, and stroke admissions to the Emergency Department of Atatürk Training and Research Hospital in Ankara, Turkey, between January 2009 and April 2010. Generalized additive models with logistic link function were used to investigate the relationship between predictors and days with and without stroke admission at lags 0-4. A total of 373 stroke patients were admitted to the emergency department (ED) between January 2009 and April 2010. Of patients, 297 had ischemic stroke (IS), 34 hemorrhagic stroke (HS), and 42 subarachnoidal hemorrhage (SAH). Although we did not find any association between overall admissions due to stroke and meteorological parameters, univariable analysis indicated that there were significantly more SAH cases on days with lower daily mean temperatures of 8.79 ± 8.75 °C as compared to relatively mild days with higher temperatures (mean temperature = 11.89 ± 7.94 °C, p = 0.021). The multivariable analysis demonstrated that admissions due to SAH increased on days with lower daily mean temperatures for the same day (lag 0; odds ratio (OR) [95 % confidence interval (95 % CI)] = 0.93 [0.89-0.98], p = 0.004) and lag 1 (OR [95 % CI] =0.76 [0.67-0.86], p = 0.001). Furthermore, the wind speed at both lag 1 (OR [95 % CI] = 1.63 [1.27-2.09], p = 0.001) and lag 3 (OR [95 % CI] = 1.43 [1.12-1.81], p = 0.004) increased admissions due to HS, respectively. In conclusion, our study demonstrated that there was an association between ED admissions due to SAH and HS and weather conditions suggesting that

  11. A system-wide approach to explaining variation in potentially avoidable emergency admissions: national ecological study

    OpenAIRE

    O'Cathain, Alicia; Knowles, Emma; Maheswaran, Ravi; Pearson, Tim; Turner, Janette; Hirst, Enid; Goodacre, Steve; Nicholl, Jon

    2013-01-01

    Background Some emergency admissions can be avoided if acute exacerbations of health problems are managed by the range of health services providing emergency and urgent care. Aim To identify system-wide factors explaining variation in age sex adjusted admission rates for conditions rich in avoidable admissions. Design National ecological study. Setting 152 emergency and urgent care systems in England. Methods Hospital Episode Statistics data on emergency admissions were used to calculate an a...

  12. [Reconsideration of the admission and discharge criteria of tuberculosis patients in Japan].

    Science.gov (United States)

    Masuyama, Hidenori; Igari, Hidetoshi

    2013-03-01

    Japanese Ministry of Health, Labour and Welfare issued new criteria for admission and discharge of tuberculosis patients in 2007. The criteria for admission are extended for the patients of the risk of Mycobacterium tuberculosis transmission and of the possible risk of treatment failure. The criteria for discharge are consisted of the 3 factors, (1) symptoms (cough, fever, etc.) are free after the standard chemotherapy of more than 2 weeks, (2) three different sputum smears are negative for acid-fast bacilli after the standard chemotherapy of more than 2 weeks, (3) patients are estimated to adhere to the chemotherapy after discharge and understand the infection control of M. tuberculosis. Although the criteria were simple, the goal was to treat tuberculosis patients successfully and improve treatment outcomes. For the effective operation of these criteria, the network of primary care facilities for early diagnosis and treatment after discharge, tuberculosis treatment facilities for hospitalization and local government including health care center is important. Four speakers proposed the problems and revealed their own resolutions. Three speakers from tuberculosis treatment facilities were positive for the shortening of hospitalization length by modifying the discharging criteria, however 1 speaker from the Tokyo Metropolitan Government emphasized that the regional medical system should be established for the treatment of discharged tuberculosis patient. 1. Reconsideration of admission and discharge criteria for tuberculosis patients: Kazunari TSUYUGUCHI (Department of Infectious Diseases, Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center) According to the present guideline in Japan, three consecutive negative sputum results for smear or culture are required for discharge of tuberculosis (TB) patients, making their duration of hospitalization extremely long. On the other hand, most of the TB ward in Japan consists of big rooms

  13. 43 CFR 4.116 - Interrogatories to parties; inspection of documents; admission of facts.

    Science.gov (United States)

    2010-10-01

    ... documents; admission of facts. 4.116 Section 4.116 Public Lands: Interior Office of the Secretary of the...; admission of facts. Under appropriate circumstances, but not as a matter of course, the Board will entertain... serve upon the opposing party a request for the admission of specified facts. Such applications shall...

  14. A Framework for the Utilization of Information Technology in Higher Education Admission Department

    Science.gov (United States)

    McClea, Michael; Yen, David C.

    2005-01-01

    Purpose: Through an examination of the admission department at Miami University of Ohio and their use of information technology, a generalized framework for the use of information technology in university admissions is proposed. Design/methodology/approach: The paper was developed to start an introduction to the admission process and the role of…

  15. Reports of LSAC Sponsored Research: Volume III, 1975-1977. Law School Admission Research.

    Science.gov (United States)

    Law School Admission Council, Princeton, NJ.

    Nineteen research reports and summaries of projects studying law school admission and the Law School Admission Test (LSAT) are presented. These research projects were supported by the Law School Admission Council between 1975 and 1977. A subject and an author index, covering this and the previous two volumes (including research conducted from 1949…

  16. Reports of LSAC Sponsored Research: Volume II, 1970-1974. Law School Admission Research.

    Science.gov (United States)

    Law School Admission Council, Princeton, NJ.

    Thirty-four research reports and summaries of projects studying law school admission and the Law School Admission Test (LSAT) are presented. These research projects were supported by the Law School Admission Council between 1970 and 1974. A subject index and an author index for volume I, covering 1949-1969, and for this volume are also provided.…

  17. Acute pulmonary admissions following implementation of a national workplace smoking ban.

    LENUS (Irish Health Repository)

    Kent, Brian D

    2012-09-01

    The implementation of workplace smoking bans has contributed to a significant reduction in the incidence of acute coronary syndrome admissions, but their influence on adult acute pulmonary disease admissions is unclear. We sought to assess the impact of a national smoking ban on nationwide admissions of individuals of working age with acute pulmonary illness.

  18. Quaternion-valued admissible wavelets and orthogonal decomposition of L2(IG(2),(H))

    Institute of Scientific and Technical Information of China (English)

    ZHAO Jiman; PENG Lizhong

    2007-01-01

    A series of admissible wavelets is fixed, which forms an ortho- normal basis for the Hilbert space of all the quaternion-valued admissible wavelets. It turns out that their corresponding admissible wavelet transforms give an orthogonal decomposition of L2 (IG(2), (H)).

  19. 78 FR 17281 - Notice of Public Meeting on FY 2014 U.S. Refugee Admissions Program

    Science.gov (United States)

    2013-03-20

    ... of Public Meeting on FY 2014 U.S. Refugee Admissions Program There will be a meeting on the President's FY 2014 U.S. Refugee Admissions Program on Wednesday, May 15, 2013 from 2 p.m. to 4 p.m. The... on the appropriate size and scope of the FY 2014 U.S. Refugee Admissions Program. Persons wishing...

  20. Investigating Postgraduate College Admission Interviews: Generalizability Theory Reliability and Incremental Predictive Validity

    Science.gov (United States)

    Arce-Ferrer, Alvaro J.; Castillo, Irene Borges

    2007-01-01

    The use of face-to-face interviews is controversial for college admissions decisions in light of the lack of availability of validity and reliability evidence for most college admission processes. This study investigated reliability and incremental predictive validity of a face-to-face postgraduate college admission interview with a sample of…

  1. Gatekeepers or Marketers: Reclaiming the Educational Role of Chief Admission Officers

    Science.gov (United States)

    McDonough, Patricia; Robertson, Larry

    2012-01-01

    The U.S. college admission environment has changed enormously over the last three decades. What have those changes meant for the profession of college admission officers? In this paper, the authors will describe the enormous changes that have taken place in high schools, colleges, and the entrepreneurial admission sector. They will describe how…

  2. 42 CFR 456.481 - Admission certification and plan of care.

    Science.gov (United States)

    2010-10-01

    ... Individuals Under Age 21: Admission and Plan of Care Requirements § 456.481 Admission certification and plan of care. If a facility provides inpatient psychiatric services to a recipient under age 21— (a) The... 42 Public Health 4 2010-10-01 2010-10-01 false Admission certification and plan of care....

  3. Contribution of Renal Impairment to Potentially Preventable Medication-Related Hospital Admissions

    NARCIS (Netherlands)

    Leendertse, Anne J.; van Dijk, Elisabeth A.; De Smet, Peter A. G. M.; Egberts, Toine C. G.; van den Bemt, Patricia M. L. A.

    2012-01-01

    BACKGROUND: Medication errors and renal impairment contribute to severe adverse drug events, which may lead to hospital admission. OBJECTIVE: To determine whether medication errors and renal impairment contribute to hospital admission and examine these errors for strategies to prevent admissions. ME

  4. Admission Officers' Impressions of Homeschooled Applicants in Evangelical and Nonevangelical Colleges and Universities

    Science.gov (United States)

    McCulloch, Donald S.; Savage, Alexandra; Schmal, Liz

    2013-01-01

    Impressions of admission officers toward homeschooled applicants were examined. Specifically, this study sought to ascertain whether the perceptions of admission officers adhered to the common stereotype that homeschoolers are brighter and yet socially less well-adjusted than average. The responses of 121 admission officers were analyzed across…

  5. Association between air pollution and asthma admission among children in Hong Kong

    OpenAIRE

    Lee, S L; Wong, W. H. S.; Lau, Y L

    2006-01-01

    Objective: To examine the association of air pollutants with hospital admission for childhood asthma in Hong Kong. Methods: Data on hospital admissions for asthma, influenza and total hospital admissions in children aged ≤18 years at all Hospital Authority hospitals during 1997-2002 were obtained. Data on daily mean concentrations of particles with aerodynamic diameter

  6. Hyponatraemia at hospital admission is a predictor of overall mortality

    DEFF Research Database (Denmark)

    Balling, L; Gustafsson, F; Goetze, J P;

    2015-01-01

    BACKGROUND: Hyponatraemia is a prognostic marker of increased mortality and morbidity in selected groups of hospitalised patients. The aim of the present study was to examine the prevalence and prognostic significance of hyponatraemia at hospital admission in an unselected population with a broad...... spectrum of medical and surgical diagnoses. METHODS: Consecutive patients >40 years of age admitted to a general district hospital in Greater Copenhagen between 1 April 1998 and 31 March 1999. Median follow-up time was 5.16 years (range 0-4372 days). Plasma sodium measurements were available in 2960...... patients, and hyponatraemia defined as P-Na(+) hospital admission was present in 1105 (37.3 %) patients. RESULTS: One-year mortality was higher for hyponatraemic patients than for normonatraemic patients: 27.5% versus 17.7%. Moreover, hyponatraemia was an independent predictor of short...

  7. Graduate admissions in clinical neuropsychology: the importance of undergraduate training.

    Science.gov (United States)

    Karazsia, Bryan T; Stavnezer, Amy Jo; Reeves, Jonathan W

    2013-11-01

    Discussions of and recommendations for the training of clinical neuropsychologists exist at the doctoral, internship, and post-doctoral level. With few exceptions, the literature on undergraduate preparations in clinical neuropsychology is sparse and lacks empirical evidence. In the present study, graduate-level faculty and current trainees completed surveys about graduate school preparations. Faculty expectations of minimum and ideal undergraduate training were highest for research methods, statistics, and assessment. Preferences for "goodness of fit" also emerged as important admissions factors. These results offer evidence for desirable undergraduate preparations for advanced study in clinical neuropsychology. Although undergraduate training in psychology is intentionally broad, results from this study suggest that students who desire advanced study in clinical neuropsychology need to tailor their experiences to be competitive in the application process. The findings have implications for prospective graduate students, faculty who train and mentor undergraduates, and faculty who serve on admissions committees.

  8. Relating admissions criteria to dental hygiene student retention.

    Science.gov (United States)

    Sanderson, Tammy R

    2014-01-01

    PURPOSE. The purpose of this study was to identify preadmission variables that relate to dental hygiene student retention. METHODS. An online survey was sent by email to 309 dental hygiene chairs/program directors. The survey comprised 18 questions to collect program demographic information, program admissions requirements, and program student retention rates. RESULTS. There were 139 respondents who participated in the survey for a 45% return rate. The mean for program retention of participating accredited dental hygiene programs was 91%. Stepwise regression analysis discovered three independent variables (aE=0.15) that relate to dental hygiene program retention rates. These independent variables include interviews (p=0.054), overall college GPA (p=0.029), and overall high school GPA (p=0.141). CONCLUSION. Preadmission requirements that include overall high school GPA, overall college GPA, and interviews can be used by admissions committees to predict dental hygiene student retention. PMID:25433188

  9. [Big data, Roemer's law and avoidable hospital admissions].

    Science.gov (United States)

    van der Horst, H E

    2016-01-01

    From an analysis of data from 23 European countries to determine the impact of primary care on avoidable hospital admissions for uncontrolled diabetes it appeared that, contrary to expectation, countries with strong primary care did not have a lower rate of avoidable hospital admission. It is clear that Roemer's law, 'a bed built is a bed filled,' still applies. However, the validity of this sort of analysis can be questioned, as these data are highly aggregated, and registration quality differs between countries. It is also questionable if these datasets can be considered as 'big data' as there are relatively small numbers per country. Big data analyses are useful for discerning patterns and formulating hypotheses, but not for proving causality. An unwanted side effect of this kind of analysis might be that policymakers use these not so valid results to underpin their policy to their advantage. PMID:27484429

  10. Certain Aspects concerning Trial under Admission of Guilt

    Directory of Open Access Journals (Sweden)

    Mihai OLARIU

    2014-03-01

    Full Text Available The trial under admission of guilt is an abbreviated procedure relying on a guilty plea, and it may be applied if the conditions stipulated in the New Criminal Procedure Code are fulfilled. One of these conditions is for the defendant to fully admit of the deeds presented by the prosecutor in the indictment (he must not, however, admit the same upon the legal classification of offences. Pursuant to the simplified procedure, in the case of conviction or postponement of the application of the sanction, the punishment limits stipulated under the law are reduced by one third for imprisonment, and by one fourth for fine sanctions. The present article is a a continuation of the author’s own research and it represents a clear comment regarding trial under admission of guilt according to the New Criminal Procedure Code, in the purpose of understanding the legislator’s intention and how the new regulations will apply.

  11. Common causes of morbidity and mortality amongst diabetic admissions at the university of Benin teaching hospital, Benin city, Nigeria

    International Nuclear Information System (INIS)

    Diabetes mellitus is associated with significant morbidity and mortality worldwide and Nigeria is no exception. To determine the morbidity and mortality in patients admitted with Diabetes Mellitus in a tertiary teaching hospital of Nigeria, through retrospective analysis of admission and death records. Admission and death certificate records from the medical wards of the University of Benin Teaching Hospital, Benin City, Nigeria, were retrospectively analysed from 1, August 2003 to 31, July 2004. Data included age, gender, total numbers of admissions and those due to Diabetes Mellitus, the indications for admissions, presenting symptoms and method of diagnoses in diabetic patients, mortality rates and causes of death. Data obtained were analysed using chi square. Out of 1567 medical admissions, 852(54.4%) were males and 715(45.6%) females. Diabetes was detected in 145(9.3%) patients [81(55.9%) males, 64(44.1%) females]. The mean age of diabetic patients was 53.6+16.1 years (range 18 - 94 years). Poor glycaemic control (29%) and diabetic foot syndrome (23.4%) were the most common reasons for admission in diabetic cases. The overall mortality rate among medical admissions was 21.8%, with diabetes accounting for 6.7% deaths. Within the cohort of diabetic cases, mortality was 15.9%, with significantly higher mortality in those aged > 65 years (p < 0.05). The most common causes of death in diabetic cases were Cerebrovascular disease and complications associated with the foot syndrome, accounting for 26.1% and 21.7% of deaths respectively; the least common causes of death in diabetic patients were Malaria, Hepatic Encephalopathy, and Carcinoma of the Cervix, accounting for 4.4% of deaths. Cerebrovascular disease was the most frequent cause of mortality among admitted diabetic patients with diabetic foot syndrome (a preventable complication) as the second most frequent cause of mortality. Increased screening for diabetes mellitus morbidities in the clinic and community

  12. Association between air pollution and daily mortality and hospital admission due to ischaemic heart diseases in Hong Kong

    Science.gov (United States)

    Tam, Wilson Wai San; Wong, Tze Wai; Wong, Andromeda H. S.

    2015-11-01

    Ischaemic heart disease (IHD) is one of the leading causes of death worldwide. The effects of air pollution on IHD mortalities have been widely reported. Fewer studies focus on IHD morbidities and PM2.5, especially in Asia. To explore the associations between short-term exposure to air pollution and morbidities and mortalities from IHD, we conducted a time series study using a generalized additive model that regressed the daily numbers of IHD mortalities and hospital admissions on daily mean concentrations of the following air pollutants: nitrogen dioxide (NO2), particulate matter with an aerodynamic diameter less than 10 μm (PM10), particulate matter with an aerodynamic diameter less than 2.5 μm (PM2.5), ozone (O3), and sulfur dioxide (SO2). The relative risks (RR) of IHD deaths and hospital admissions per 10 μg/m3 increase in the concentration of each air pollutant were derived in single pollutant models. Multipollutant models were also constructed to estimate their RRs controlling for other pollutants. Significant RRs were observed for all five air pollutants, ranging from 1.008 to 1.032 per 10 μg/m3 increase in air pollutant concentrations for IHD mortality and from 1.006 to 1.021 per 10 μg/m3 for hospital admissions for IHD. In the multipollutant model, only NO2 remained significant for IHD mortality while SO2 and PM2.5 was significantly associated with hospital admissions. This study provides additional evidence that mortalities and hospital admissions for IHD are significantly associated with air pollution. However, we cannot attribute these health effects to a specific air pollutant, owing to high collinearity between some air pollutants.

  13. Statewide ban on recreational fires resulted in a significant decrease in campfire-related summer burn center admissions.

    Science.gov (United States)

    Hoang, David Manh; Reid, Dixie; Lentz, Christopher William

    2013-01-01

    Every summer, there is an increase in the number of burn injuries caused by accidents around campfires. Because of the prevalence of drought, high winds, and uncontrolled wild fires, a statewide ban on recreational fires was instituted in New Mexico from June to July 2011. We hypothesized that this legislation would have a significant impact on burn admissions caused by campfire-related injuries. A retrospective review of summer admissions to a state burn center was conducted to assess the effect of this ban on recreational fire injuries, and these data were compared with that of the previous summer when no ban was in effect. All burn admissions to a state burn center were reviewed from Memorial Day to Labor Day in 2010 and 2011. Data collected included cause, % TBSA, age, days of hospitalization, intensive care unit days, and total surface area grafted. Nonparametric statistical analysis was performed with Fisher exact test for dichotomous data and Mann-Whitney test for continuous data with significance at P fires during the study period (n = 14 [17%] in 2010 and 4 [5%] in 2011; P = .02). This resulted in a decrease in the number of patient-days from 91 in 2010 to 25 in 2011. Half of the camp fire admissions required skin grafts to definitively close the wounds (6/14 in 2010 and 2/4 in 2011). Recreational fire bans targeted at controlling wildfires during conditions favoring rapid spread were associated with a 3- to 4-fold decrease in campfire-related burn admissions. Compared with a summer when no fire ban was in effect, the number of patient-days decreased from 91 to 25. PMID:23292575

  14. Tuberculosis in hospitalized patients: clinical characteristics of patients receiving treatment within the first 24 h after admission

    Directory of Open Access Journals (Sweden)

    Denise Rossato Silva

    2014-06-01

    Full Text Available Objective: To evaluate clinical characteristics and outcomes in patients hospitalized for tuberculosis, comparing those in whom tuberculosis treatment was started within the first 24 h after admission with those who did not. Methods: This was a retrospective cohort study involving new tuberculosis cases in patients aged ≥ 18 years who were hospitalized after seeking treatment in the emergency room. Results: We included 305 hospitalized patients, of whom 67 (22.0% received tuberculosis treatment within the first 24 h after admission ( ≤24h group and 238 (88.0% did not (>24h group. Initiation of tuberculosis treatment within the first 24 h after admission was associated with being female (OR = 1.99; 95% CI: 1.06-3.74; p = 0.032 and with an AFB-positive spontaneous sputum smear (OR = 4.19; 95% CI: 1.94-9.00; p 24h groups, respectively, the ICU admission rate was 22.4% and 15.5% (p = 0.258; mechanical ventilation was used in 22.4% and 13.9% (p = 0.133; in-hospital mortality was 22.4% and 14.7% (p = 0.189; and a cure was achieved in 44.8% and 52.5% (p = 0.326. Conclusions: Although tuberculosis treatment was initiated promptly in a considerable proportion of the inpatients evaluated, the rates of in-hospital mortality, ICU admission, and mechanical ventilation use remained high. Strategies for the control of tuberculosis in primary care should consider that patients who seek medical attention at hospitals arrive too late and with advanced disease. It is therefore necessary to implement active surveillance measures in the community for earlier diagnosis and treatment.

  15. Relation between parasuicide, suicide, psychiatric admissions, and socioeconomic deprivation.

    OpenAIRE

    Gunnell, D. J.; Peters, T. J.; Kammerling, R M; Brooks, J.

    1995-01-01

    OBJECTIVE--To examine the relations between parasuicide, suicide, psychiatric inpatient admissions, and socioeconomic deprivation. DESIGN--Ecological analysis with data from routine information systems and the 1991 census. SETTING--24 localities in the area covered by the Bristol and District Health Authority (population 817,000), consisting of aggregations of neighbouring wards, with an average population of 34,000. SUBJECTS--6089 subjects aged over 10 years admitted to hospital after parasu...

  16. Causes Of Microbial Carriers During Admission To Intensive Care Unit

    OpenAIRE

    Panagiotopoulou, Efthymia; Nteves, Ioannis; Kadda, Olga; Kapadohos, Theodore; Vasilopoulos, Georgios; Marvaki, Christina

    2016-01-01

    Introduction: The recording of microbial agent upon patients admission in the Intensive Care Unit (ICU) can be useful for the prevention and reduction of dispersion, forecasting new colonization or infection respectively bacteria and guide empirical antimicrobial therapy. Aim: The aim of the present study was to investigate the factors associated with microbial colonization of patients admitting to ICU. Material and Method: The studied sample consisted of 72 patients admitted to the I...

  17. [Theophylline overdoses on admission to a resuscitation unit].

    Science.gov (United States)

    Laaban, J P; Dupeyron, J P; Coignet, M C; Bedos, J P; Poirier, T; Rochemaure, J

    1987-01-01

    The aim of this study is to assess in a prospective fashion the causes and the frequency of overdosage with Theophylline on admission to intensive care units, in patients on long term treatment with oral Theophylline and/or had previously received an intravenous injection (IV) of Aminophylline. In 72 patients [52 chronic airflow obstruction (or BPCO), 21 asthmatics] admitted for acute respiratory insufficiency (IRA) the blood level of Theophylline on admission to intensive care (T0) was determined systematically, and was in the toxic range (greater than 29 mg/l) in 17% of cases (12/72). In patients with T0 greater than 20 mg/l, repeat measurements of Theophylline clearance were carried out: 12 hours after admission by studying the fall in plasma levels (Cl1), then after 8 days (+/- 5) while perfusing IV Aminophylline at a constant flow (Cl2) and finally after changing over to slow release oral Theophylline 18 days (+/- 10) after admission (Cl3). Cl1 was less than 35 ml/kg/h in 9 patients (group I) and greater than 55 ml/kg/h in 3 patients (group II). All the patients in group I were on oral Theophylline in a dose which was not excessive (mean 10.6 +/- 3.3 mg/kg/24 h) and only one patient received an injection of IV Aminophylline. In group I, the clearance of Theophylline was very low initially (Cl1 = 18.6 +/- 9.6 ml/kg/h) and finally rose (Cl2 = 34.7 +/- 14 ml/kg/h p less than 0.02; and Cl3 = 46.9 +/- 24 ml/kg/h p less than 0.02).(ABSTRACT TRUNCATED AT 250 WORDS) PMID:3616118

  18. Objective standards for the emergency services: emergency admission to hospital.

    OpenAIRE

    West, R.

    2001-01-01

    The primary objectives of the emergency services are to minimize early mortality and complications, although longer-term morbidity, quality of life and late mortality may also be influenced by early actions. Evaluation of the emergency services and demonstration of quality need to reflect these objectives by appropriate choice of outcome measures. This brief review of leading measures of quality in emergency admissions discusses population-based 30-day mortality, after examining some limitati...

  19. Differential Weighting of Items to Improve University Admission Test Validity

    OpenAIRE

    Eduardo Backhoff Escudero; Felipe Tirado Segura; Norma Larrazolo Reyna

    2001-01-01

    This paper gives an evaluation of different ways to increase university admission test criterion-related validity, by differentially weighting test items. We compared four methods of weighting multiple-choice items of the Basic Skills and Knowledge Examination (EXHCOBA): (1) punishing incorrect responses by a constant factor, (2) weighting incorrect responses, considering the levels of error, (3) weighting correct responses, considering the item’s difficulty, based on the Classic Measur...

  20. Flow simulation of a partial-admission steam turbine; Stroemungssimulation einer teilbeaufschlagten Dampfturbine

    Energy Technology Data Exchange (ETDEWEB)

    Kalkkuhl, Tobias J.

    2014-11-21

    This thesis discusses the CFD simulation of the flow in an industrial steam turbine, equipped with a control stage. Due to partial admission, the rotor blades suffer from high cyclic blade loading. Specific losses occur. The circumferential asymmetry of the flow involves high gradients of the flow variables in circumferential direction. At the boundaries, between the admitted and the non-admitted sectors, high velocities appear. The specific flow patterns produce high flow unsteadiness of the rotor resulting in cyclic blade loading. Due to the pressure fluctuations the aerodynamic forces, acting on the rotor blades, are many times higher than the average forces in the admitted sector. The thesis describes the high cyclic blade loading, together with the unsteady and three-dimensional flow patterns inside the control stage and the attenuation in the adjacent turbine stages. Modifications to the geometry within the control stage show severe influence on the dynamics.

  1. The full moon and admission to emergency rooms

    Directory of Open Access Journals (Sweden)

    Zargar Moosa

    2004-05-01

    Full Text Available OBJECTIVE: The purpose of this study was to investigate an ancient hypothesis; the moon effect might increase incidence of injuries and hence admission of patients with trauma to Emergency Rooms (ERs on full moon days. METHODS: During thirteen months, 58000 trauma patients admitted in three hospitals that had the highest load of trauma patients in Tehran were studied. Due to lack of complete data, 3543 patients (6.1% were excluded from the study, leaving 54457 cases for further analysis. We selected lunar calendar for our study, so dates of patients′ admissions were converted to lunar months and three day- periods with 15th as middle day were defined as full moon days. RESULTS: In our study the number of trauma patients was not increased during the full moon days against other days of lunar month. Statistical analyses of data didn′t exhibit a positive relation between full moon days and increasing of trauma patient admission to ERs. An association between assault and attempted suicide was not observed around the full moon days either. The results did not show significant reduction of GCS score of patients on full moon days and there was not any increase in severity of traumatic injury sustained during full moon days. CONCLUSIONS: It seems necessary to conduct studies regarding the probability of moon effect through on different database, geographic areas and for appropriate periods in order to reach a conclusive result.

  2. Aggressive behavior during the first 24 hours of psychiatric admission

    Directory of Open Access Journals (Sweden)

    Vitor Crestani Calegaro

    2014-09-01

    Full Text Available OBJECTIVE: To investigate the association between aggression in the first 24 hours after admission and severity of psychopathology in psychiatric inpatients.METHODS: This cross-sectional study included psychiatric patients admitted to Hospital Universitário de Santa Maria, in Santa Maria, southern Brazil, from August 2012 to January 2013. At their arrival at the hospital, patients were interviewed to fill in the Brief Psychiatric Rating Scale (BPRS form, and any aggressive episodes in the first 24 hours after admission were recorded using the Overt Aggression Scale (OAS. The Mann-Whitney U test was used to compare patients according to aggressiveness: aggressive versus non-aggressive, hostile versus violent, and aggressive against others only versus self-aggressive.RESULTS: The sample was composed of 110 patients. Aggressive patients in general had higher BPRS total scores (p = 0.002 and individual component scores, and their results showed more activation (p < 0.001 and thinking disorders (p = 0.009, but less anxious-depression (p = 0.008. Violent patients had more severe psychomotor agitation (p = 0.027, hallucinations (p = 0.017 and unusual thought content (p = 0.020. Additionally, self-aggressive patients had more disorientation (p = 0.011 and conceptual disorganization (p = 0.007.CONCLUSIONS: Aggression in psychiatric patients in the first 24 hours after admission is associated with severity of psychopathology, and severity increases with severity of patient psychosis and agitation.

  3. Long-distance calls in Neotropical primates

    OpenAIRE

    Oliveira Dilmar A.G.; Ades César

    2004-01-01

    Long-distance calls are widespread among primates. Several studies concentrate on such calls in just one or in few species, while few studies have treated more general trends within the order. The common features that usually characterize these vocalizations are related to long-distance propagation of sounds. The proposed functions of primate long-distance calls can be divided into extragroup and intragroup ones. Extragroup functions relate to mate defense, mate attraction or resource defense...

  4. Synergistic modeling of call center operations

    OpenAIRE

    2006-01-01

    We synergistically apply queueing theory, integer programming, and stochastic simulation to determine an optimal staffing policy for a repair call handling center. A stationary Markovian queueing model is employed to determine minimal staffing levels for a sequence of time intervals with varying call volumes and mean handling times. These staffing requirements populate an integer program model for determining the mix of call agent shifts that will achieve service quality standards at minimum ...

  5. Performance Indicators for Call Centers with Impatience

    OpenAIRE

    Jouini, Oualid; Koole, Ger; Roubos, Alex

    2013-01-01

    International audience An important feature of call center modeling is the presence of impatient customers. In this paper, we consider single-skill call centers including customer abandonments. We study a number of different service level definitions, including all those used in practice, and show how to explicitly compute their performance measures. Based on data from different call centers, new models are defined that extend the common Erlang A model. We show that the new models fit real...

  6. CALL for endangered languages: Challenges and rewards

    OpenAIRE

    Ward, Monica; Van Genabith, Josef

    2003-01-01

    The interaction between CALL and Endangered Languages (EL) is an under-researched and under-exploited field. It is perhaps no surprise that this should be the case as CALL in the EL context has to address additional requirements and deal with extra constraints over and above those that prevail in mainstream CALL. This article introduces the topic of Endangered Languages and lists two classifications for Endangered Languages (Terralingua, 2000; Unesco, 1993). It outlines why a language becomes...

  7. Edificio de viviendas. Calle Balmes – Barcelona

    Directory of Open Access Journals (Sweden)

    Barba Corsini, F. J.

    1958-09-01

    Full Text Available Se trata de una casa de renta con cuatro viviendas por rellano, edificada en un terreno de 465 m2 que da frente a dos calles, con una diferencia de nivel de unos 5,50 metros. Estas son: la calle Balmes, de primera categoría y orientación noroeste, y la calle Atenas, de segunda categoría y orientación suroeste.

  8. ASCERTAINMENT OF ADMISSIBLE SYSTEMATIC OVERLOADS IN THE DISTRIBUTIVE OIL-TRANSFORMERS

    Directory of Open Access Journals (Sweden)

    V. A. Anishchenko

    2015-01-01

    Full Text Available The capacity of power-distributive oil-transformers is selected on the basis of their operational mode cost-effectiveness and power-supply reliability of the electrical recipients on condition that the transformers duty should not lead to reduction of their normal life-in-service. Unconscionable and protracted overloads intrinsically decrease reliability and respectively service life of the transformers owing to increased wear of the winding insulation because of the excessive heat. The unaccounted previous loading history and possible changes of the risen overload in the course of its further development can lead to poor accuracy in the admissible overload time estimation. Therefore, that may lead to intolerable excessive heat in the winding insulation or underutilization of the potential overload capacity of the transformers. Which limits the potentiality of complete demand satisfaction of the electrical consumers. This is exactly why the acting GOST 14209–97 strongly recommends the consumers to make their own calculations of the load-carrying capacity based on the real load curves.The authors present a method for ascertainment of the admissible duration of the systematic non-emergency overload of a distributive oil-transformer. The ascertainment method accounts for the overload repetition-factor alteration on the time-interval of its occurrence and respectively the variation in the transformer thermal state. The employment of this method will allow improving accuracy in ascertainment of the admissible duration of the systematic non-emergency overloads and eventually the reliability of the transformer operation and the power-supply system in its entirety. The method realization is intended by means of the transformer-load monitoring as one of the tasks of the electric-energy automated control and accounting system.

  9. Multidimensional views on mobile call network

    Institute of Scientific and Technical Information of China (English)

    Shengqi YANG; Bin WU; Bai WANG

    2009-01-01

    Recent studies on social network have spurred significant interests in human behaviors. Nowadays, various kinds of interpersonal human interactions, from mobile calls to emalls, provide particular avenues to explore the inher-ent properties of communication patterns. In this article, we present a comprehensive study on a massive anonymous call records obtained from a major mobile service operator. The important difference laid in our work and previous mainly topological analyses is that we report on multiple aspects of the dataset. By investigating the calls of the users, we find out that most calls tend to last within one minute. Call du-ration between two females is much longer than that of two males. But calls of males generally involve more stations than that of female, indicating a larger mobile range of the males. We also observed that people tend to communicate more with each other when they share similar characters. Besides, the network is well-connected and robust to random attack. We also demonstrate that the close-knit sub-groups with little discrepancy in the characteristics of its involved users usually evoke more calls. Another interesting discov-ery is that call behaviors among people between workdays and weekends is obviously distinct. Generally speaking, the goal that we research on call network through multidimen-sional analyses is to uncover the intricate patterns of human communications and put up reasonable insights into future service intelligence.

  10. Performance evaluation of Call-center with call redirection: Ocena performanc klicnega centra s preusmerjanjem klicev:

    OpenAIRE

    Efimushkin, Vladimir; Žepič, Drago

    2007-01-01

    The object of investigation is an analytical model for a Call-center functioning with a traffic distribution (call redirection) mechanism. Call-center functioning is described by the Markov process. A solution for stationary distribution is found and expressions for the main performance characteristics for the Call-center functioning are given. The proposed analytical model enables an investigation in different call traffic management schemes for the cases of agents overload and underload. ...

  11. Effect of gender and call duration on customer satisfaction in call center big data

    OpenAIRE

    Quim Llimona; Jordi Luque; Xabier Anguera; Zoraida Hidalgo; Souneil Park; Nuria Oliver

    2015-01-01

    Customer center call data is typically collected by organizations and corporations in order to improve customer experience through the analysis of such call data. In this paper, we report our findings when analysing more than 26 thousand calls to the call centers of a large corporation in a Latin American country. We focus on the impact of gender and call duration on selfreported customer satisfaction. Speech-based gender detection technology is employed to automatically detect the gender...

  12. Core Competencies Of A Call Centre AgentCore Competencies Of A Call Centre Agent

    OpenAIRE

    Christine White; Vera Roos

    2005-01-01

    Call centre agents are becoming increasingly important in the call centre context. They act as a contact point between the customer and the company. Call centre agents should have certain competencies to perform their duties sufficiently. Identifying competencies, required to be effective agents, will ease the task of training and recruitment. Due to the interrelatedness of the call centre agent, the management of a call centre and customers, all relevant role players’ perceptions were taken ...

  13. The Relationship between Admission Criteria and Fieldwork Performance in a Masters-Level OT Program: Implications for Admissions

    Directory of Open Access Journals (Sweden)

    Molly Bathje MS, OTR/L

    2014-07-01

    Full Text Available Occupational therapy (OT graduate programs strive to produce an effective OT workforce with competent and engaged OT practitioners. Admission into OT graduate programs is an increasingly competitive process, with most programs having more applicants than spaces available. Programs need to select applicants that will be the most successful in meeting graduation requirements, including both academic and clinical components. This pilot study was designed to examine the relationship between admission criteria and fieldwork (FW performance. The study utilized a retrospective analysis with a convenience sample of 108 students with complete data from a private university in the Midwest. Independent variables of Graduate Record Examination (GRE subscale scores (GRE-verbal, GRE-quantitative, and GRE-written and undergraduate Cumulative Grade Point Average (CGPA were included. The dependent variable was level II FW performance, as measured by the AOTA Fieldwork Performance Evaluation (FWPE. Results of this study found a significant correlation between CGPA and FWPE scores for level IIA FW experiences, and a significant correlation between GRE-written and FWPE scores for level IIB FW experiences. Regression models for FW IIB indicated that GRE-written was a significant predictor of FWPE scores for the FW IIB experience. This pilot study provides information that may be utilized during OT admission processes.

  14. Integrated Language Skills CALL Course Design

    Science.gov (United States)

    Watson, Kevin; Agawa, Grant

    2013-01-01

    The importance of a structured learning framework or interrelated frameworks is the cornerstone of a solid English as a foreign language (EFL) computer-assisted language learning (CALL) curriculum. While the benefits of CALL are widely promoted in the literature, there is often an endemic discord separating theory and practice. Oftentimes the…

  15. Call-Center – Rationalisierung im Dilemma

    OpenAIRE

    Holtgrewe, Ursula; Gundtoft, Lars

    2001-01-01

    Die Verfasser untersuchen Funktionen, Lösungen und Probleme der Organisationsform Call-Center. Aus organisationssoziologischer Sicht werden grundlegende Funktionen und Dilemmata organisationeller Grenzstellen beleuchtet und mit Informationen über Organisations- und Beschäftigtenstruktur, Arbeitsweisen und Kundenbeziehungen der verschiedenen Typen von Call-Centern abgeglichen. Die Untersuchung ist auf drei Ebenen angelegt: Aus systematisch-struktureller Sicht werden Organisationsdilemmata an d...

  16. Coaching "Callings" throughout the Adult Life Cycle.

    Science.gov (United States)

    Hudson, Frederic M.

    2001-01-01

    The process of "callings" continues throughout life. Coaching can connect the present to the future in a meaningful way. Callings represent a value shift requiring revision of the nature and scope of one's central purpose in life and meaningful activities. (JOW)

  17. 78 FR 76218 - Rural Call Completion

    Science.gov (United States)

    2013-12-17

    ...-distance telephone calls to rural customers. This followed a series of Commission actions to address rural..., reducing, or restricting telephone traffic which may violate section 201 or 202 of the Communications Act... potential to degrade the reliability of the nation's communications network and that call blocking...

  18. Maximal admissible faces and asymptotic bounds for the normal surface solution space

    CERN Document Server

    Burton, Benjamin A

    2010-01-01

    The enumeration of normal surfaces is a key bottleneck in computational three-dimensional topology. The underlying procedure is the enumeration of admissible vertices of a high-dimensional polytope, where admissibility is a powerful but non-linear and non-convex constraint. The main results of this paper are significant improvements upon the best known asymptotic bounds on the number of admissible vertices, using polytopes in both the standard normal surface coordinate system and the streamlined quadrilateral coordinate system. To achieve these results we examine the layout of admissible points within these polytopes. We show that these points correspond to well-behaved substructures of the face lattice, and we study properties of the corresponding "admissible faces". Key lemmata include upper bounds on the number of maximal admissible faces of each dimension, and a bijection between the maximal admissible faces in the two coordinate systems mentioned above.

  19. Design and Experimental Performance of a Two Stage Partial Admission Turbine, Task B.1/B.4

    Science.gov (United States)

    Sutton, R. F.; Boynton, J. L.; Akian, R. A.; Shea, Dan; Roschak, Edmund; Rojas, Lou; Orr, Linsey; Davis, Linda; King, Brad; Bubel, Bill

    1992-01-01

    A three-inch mean diameter, two-stage turbine with partial admission in each stage was experimentally investigated over a range of admissions and angular orientations of admission arcs. Three configurations were tested in which first stage admission varied from 37.4 percent (10 of 29 passages open, 5 per side) to 6.9 percent (2 open, 1 per side). Corresponding second stage admissions were 45.2 percent (14 of 31 passages open, 7 per side) and 12.9 percent (4 open, 2 per side). Angular positions of the second stage admission arcs with respect to the first stage varied over a range of 70 degrees. Design and off-design efficiency and flow characteristics for the three configurations are presented. The results indicated that peak efficiency and the corresponding isentropic velocity ratio decreased as the arcs of admission were decreased. Both efficiency and flow characteristics were sensitive to the second stage nozzle orientation angles.

  20. Asma e Gravidez: Tratamento Hospitalar Asthma and Pregnancy: Hospital Admission

    Directory of Open Access Journals (Sweden)

    Francisco Mauad Filho

    2001-09-01

    pregnant patients who required hospital admission to control acute exacerbations. Patients and Method: retrospective study of 12 pregnant asthmatic patients admitted at the Hospital das Clínicas, Department of Obstetrics and Gynecology, FMRP-USP, during the period between 1992 and 1996. The analyzed data included: maternal age, prenatal care, length of hospitalization, gestational age at delivery, type of delivery, neonatal weight and Apgar score. Results: among the 12 asthmatic pregnant patients 7 did not have prenatal care for acute exacerbation treatment before hospitalization. Three of 12 developed preeclampsia (one with premature rupture of membranes and infection of the amniotic cavity and one with premature separation of the placenta; 2 of 12 were diagnosed with premature placental aging (one with premature labor and twin-to-twin transfusion syndrome and one with oligohydramnios; 1 of 12 was diagnosed with oligohydramnios and fetal death and had pneumonia, and 1 of 12 was diagnosed with polyhydramnios. Among the infants, 3 were small for gestational age. Conclusions: perinatal complications were more frequent in asthmatic pregnant patients who required hospital care for the acute exacerbations. Chronic asthmatic patients in reproductive age should be advised before pregnancy about the prophylactic measures to reduce the incidence of acute crises and exacerbations during pregnancy should be treated promptly.

  1. Communication cliques in mobile phone calling networks

    CERN Document Server

    Li, Ming-Xia; Jiang, Zhi-Qiang; Zhou, Wei-Xing

    2015-01-01

    People in modern societies form different social networks through numerous means of communication. These communication networks reflect different aspects of human's societal structure. The billing records of calls among mobile phone users enable us to construct a directed calling network (DCN) and its Bonferroni network (SVDCN) in which the preferential communications are statistically validated. Here we perform a comparative investigation of the cliques of the original DCN and its SVDCN constructed from the calling records of more than nine million individuals in Shanghai over a period of 110 days. We find that the statistical properties of the cliques of the two calling networks are qualitatively similar and the clique members in the DCN and the SVDCN exhibit idiosyncratic behaviors quantitatively. Members in large cliques are found to be spatially close to each other. Based on the clique degree profile of each mobile phone user, the most active users in the two calling networks can be classified in to seve...

  2. Responses of squirrel monkeys to their experimentally modified mobbing calls

    Science.gov (United States)

    Fichtel, Claudia; Hammerschmidt, Kurt

    2003-05-01

    Previous acoustic analyses suggested emotion-correlated changes in the acoustic structure of squirrel monkey (Saimiri sciureus) vocalizations. Specifically, calls given in aversive contexts were characterized by an upward shift in frequencies, often accompanied by an increase in amplitude. In order to test whether changes in frequencies or amplitude are indeed relevant for conspecific listeners, playback experiments were conducted in which either frequencies or amplitude of mobbing calls were modified. Latency and first orienting response were measured in playback experiments with six adult squirrel monkeys. After broadcasting yaps with increased frequencies or amplitude, squirrel monkeys showed a longer orienting response towards the speaker than after the corresponding control stimuli. Furthermore, after broadcasting yaps with decreased frequencies or amplitude, squirrel monkeys showed a shorter orienting response towards the speaker than after the corresponding manipulated calls with higher frequencies or amplitude. These results suggest that changes in frequencies or amplitude were perceived by squirrel monkeys, indicating that the relationship between call structure and the underlying affective state of the caller agreed with the listener's assessment of the calls. However, a simultaneous increase in frequencies and amplitude did not lead to an enhanced response, compared to each single parameter. Thus, from the receiver's perspective, both call parameters may mutually replace each other.

  3. Call cultures in orang-utans?

    Directory of Open Access Journals (Sweden)

    Serge A Wich

    Full Text Available BACKGROUND: Several studies suggested great ape cultures, arguing that human cumulative culture presumably evolved from such a foundation. These focused on conspicuous behaviours, and showed rich geographic variation, which could not be attributed to known ecological or genetic differences. Although geographic variation within call types (accents has previously been reported for orang-utans and other primate species, we examine geographic variation in the presence/absence of discrete call types (dialects. Because orang-utans have been shown to have geographic variation that is not completely explicable by genetic or ecological factors we hypothesized that this will be similar in the call domain and predict that discrete call type variation between populations will be found. METHODOLOGY/PRINCIPAL FINDINGS: We examined long-term behavioural data from five orang-utan populations and collected fecal samples for genetic analyses. We show that there is geographic variation in the presence of discrete types of calls. In exactly the same behavioural context (nest building and infant retrieval, individuals in different wild populations customarily emit either qualitatively different calls or calls in some but not in others. By comparing patterns in call-type and genetic similarity, we suggest that the observed variation is not likely to be explained by genetic or ecological differences. CONCLUSION/SIGNIFICANCE: These results are consistent with the potential presence of 'call cultures' and suggest that wild orang-utans possess the ability to invent arbitrary calls, which spread through social learning. These findings differ substantially from those that have been reported for primates before. First, the results reported here are on dialect and not on accent. Second, this study presents cases of production learning whereas most primate studies on vocal learning were cases of contextual learning. We conclude with speculating on how these findings might

  4. Timing matters: sonar call groups facilitate target localization in bats.

    Science.gov (United States)

    Kothari, Ninad B; Wohlgemuth, Melville J; Hulgard, Katrine; Surlykke, Annemarie; Moss, Cynthia F

    2014-01-01

    To successfully negotiate a cluttered environment, an echolocating bat must control the timing of motor behaviors in response to dynamic sensory information. Here we detail the big brown bat's adaptive temporal control over sonar call production for tracking prey, moving predictably or unpredictably, under different experimental conditions. We studied the adaptive control of vocal-motor behaviors in free-flying big brown bats, Eptesicus fuscus, as they captured tethered and free-flying insects, in open and cluttered environments. We also studied adaptive sonar behavior in bats trained to track moving targets from a resting position. In each of these experiments, bats adjusted the features of their calls to separate target and clutter. Under many task conditions, flying bats produced prominent sonar sound groups identified as clusters of echolocation pulses with relatively stable intervals, surrounded by longer pulse intervals. In experiments where bats tracked approaching targets from a resting position, bats also produced sonar sound groups, and the prevalence of these sonar sound groups increased when motion of the target was unpredictable. We hypothesize that sonar sound groups produced during flight, and the sonar call doublets produced by a bat tracking a target from a resting position, help the animal resolve dynamic target location and represent the echo scene in greater detail. Collectively, our data reveal adaptive temporal control over sonar call production that allows the bat to negotiate a complex and dynamic environment.

  5. 77 FR 70211 - Agency Information Collection Activities (Call Center Satisfaction Survey) Under OMB Review

    Science.gov (United States)

    2012-11-23

    ... AFFAIRS Agency Information Collection Activities (Call Center Satisfaction Survey) Under OMB Review AGENCY....'' SUPPLEMENTARY INFORMATION: Title: VBA Call Center Satisfaction Survey. OMB Control Number: 2900-0744. Type of... Veterans; (2) determine what to do to improve the call center experience; and (3) serve to guide...

  6. Analysis of the Spatial Variation of Hospitalization Admissions for Hypertension Disease in Shenzhen, China

    Directory of Open Access Journals (Sweden)

    Zhensheng Wang

    2014-01-01

    Full Text Available In China, awareness about hypertension, the treatment rate and the control rate are low compared to developed countries, even though China’s aging population has grown, especially in those areas with a high degree of urbanization. However, limited epidemiological studies have attempted to describe the spatial variation of the geo-referenced data on hypertension disease over an urban area of China. In this study, we applied hierarchical Bayesian models to explore the spatial heterogeneity of the relative risk for hypertension admissions throughout Shenzhen in 2011. The final model specification includes an intercept and spatial components (structured and unstructured. Although the road density could be used as a covariate in modeling, it is an indirect factor on the relative risk. In addition, spatial scan statistics and spatial analysis were utilized to identify the spatial pattern and to map the clusters. The results showed that the relative risk for hospital admission for hypertension has high-value clusters in the south and southeastern Shenzhen. This study aimed to identify some specific regions with high relative risk, and this information is useful for the health administrators. Further research should address more-detailed data collection and an explanation of the spatial patterns.

  7. Topology optimization of 3D compliant actuators by a sequential element rejection and admission method

    Science.gov (United States)

    Ansola, R.; Veguería, E.; Alonso, C.; Querin, O. M.

    2016-03-01

    This work presents a sequential element rejection and admission (SERA) method for optimum topology design of three dimensional compliant actuators. The proposed procedure has been successfully applied to several topology optimization problems, but most investigations for compliant devices design have been focused on planar systems. This investigation aims to progress on this line, where a generalization of the method for three dimensional topology optimization is explored. The methodology described in this work is useful for the synthesis of high performance flexure based micro and nano manipulation applications demanding for both sensing and control of motion and force trajectories. In this case the goal of the topology optimization problem is to design an actuator that transfers work from the input point to the output port in a structurally efficient way. Here we will use the classical formulation where the displacement performed on a work piece modelled by a spring is maximized. The technique implemented works with two separate criteria for the rejection and admission of elements to efficiently achieve the optimum design and overcomes problems encountered by other evolutionary methods when dealing with compliant mechanisms design. The use of the algorithm is demonstrated through several numerical examples.

  8. Obstetric conditions and risk of first admission with schizophrenia: A Danish national register based study

    DEFF Research Database (Denmark)

    Byrne, Majella; Agerbo, Esben; Bennedsen, Birgit;

    2007-01-01

    -control study based on Danish longitudinal registers was conducted to investigate the risk of schizophrenia associated with exposure to a range of obstetric events. The sample included 1039 first admissions to, or contacts with Danish psychiatric services with an ICD-8 or ICD-10 diagnosis of schizophrenia...... and 24, 826 individually matched controls. Adjusting for the other obstetric factors, family psychiatric history, and socio-economic and demographic factors, risk of schizophrenia was associated with maternal non-attendance at antenatal appointments (Incidence Rate Ratio (IRR) 2.08, 95% CI: 1.0, 4...... (IRR 2.15, 95% CI: 1.1, 4.4), and maternal sepsis of childbirth and the puerperium (IRR 2.91, 95% CI: 1.1, 7.9). There was no significant interaction between the obstetric factors and either sex or family psychiatric history. The data suggest a modest association between prematurity, indicators...

  9. Inpatient admissions and outpatient visits in persons with and without HIV infection in Denmark, 1995-2007

    DEFF Research Database (Denmark)

    Engsig, Frederik Neess; Hansen, Ann-Brit Eg; Gerstoft, Jan;

    2010-01-01

    HIV patients and a cohort of population controls matched on sex and date of birth. The study period was 1995-2007. We calculated inpatient admission rates and outpatient visit rates stratified by medical speciality and International Classification of Diseases-10 diagnose categories. Relative risks...... and a small increase in relative risk due to cardiovascular disease. CONCLUSION: After the introduction of HAART, the inpatient treatment of HIV-infected patients has decreased, especially at departments of infectious disease. In contrast, this population's use of outpatient facilities has increased....... The risk ratio (95% CI) fell from 6.2 (6.0-6.5) to 3.1 (3.1-3.2) predominantly due to reduced inpatient admission rates to departments of infectious diseases. The overall outpatient visit rates (95% CI) for the HIV-infected patients increased from 744 (737-751) to 877 (872-882)/100 person-years, mainly due...

  10. External GSM phone calls now made simpler

    CERN Multimedia

    2007-01-01

    On 2 July, the IT/CS Telecom Service introduced a new service making external calls from CERN GSM phones easier. A specific prefix is no longer needed for calls outside CERN. External calls from CERN GSM phones are to be simplified. It is no longer necessary to use a special prefix to call an external number from the CERN GSM network.The Telecom Section of the IT/CS Group is introducing a new system that will make life easier for GSM users. It is no longer necessary to use a special prefix (333) to call an external number from the CERN GSM network. Simply dial the number directly like any other Swiss GSM customer. CERN currently has its own private GSM network with the Swiss mobile operator, Sunrise, covering the whole of Switzerland. This network was initially intended exclusively for calls between CERN numbers (replacing the old beeper system). A special system was later introduced for external calls, allowing them to pass thr...

  11. Admission Cell Free DNA as a Prognostic Factor in Burns: Quantification by Use of a Direct Rapid Fluorometric Technique

    Directory of Open Access Journals (Sweden)

    Yaron Shoham

    2014-01-01

    Full Text Available Background. Despite great advances in the treatment of burn patients, useful prognostic markers are sparse. During the past years there has been increasing interest in circulating plasma cell free DNA as a potential marker for tissue injury. We have developed a rapid direct fluorescent assay for cell free DNA quantification that allows obtaining accurate, fast, and inexpensive measurements. Objective. To use this technique for measuring plasma cell free DNA levels in burn patients and to further explore the use of cell free DNA as a potential marker of patient outcome in burns. Methods. Cell free DNA levels obtained from 14 burn victims within 6 hours of injury and 14 healthy controls were quantified by a direct rapid fluorometric assay. Results. Patient admission cell free DNA levels were significantly elevated compared with that of controls (1797 ± 1523 ng/mL versus 374 ± 245 ng/mL, P=0.004. There are statistically significant correlations between cell free DNA admission levels and burn degree (Spearman’s correlation = 0.78, P=0.001, total body surface area (Spearman’s correlation = 0.61, P=0.02, and total burn volume (Spearman’s correlation = 0.64, P=0.014. Conclusions. Admission cell free DNA levels can serve as a prognostic factor in burns and future routine use can be made possible by use of our direct rapid fluorometric assay.

  12. Performance of Call to Order - photographs

    OpenAIRE

    Ritter, Kathleen; Maxwell, James; PARRC

    2012-01-01

    Call to Order is the translation—into musical sound—of the meeting minutes of the organizations behind Institutions by Artists: The Convention (PAARC, Fillip, and ARCA). Call to Order uses a prosaic form of administration as material for creative production. Musical scores were created from the meeting minutes of each organization by mapping Robert’s Rules of Order onto the implied rules of Piston’s Harmony and using both texts as comparative guides. Call to Order is the musical sound of a...

  13. Economic recession and headache-related hospital admissions.

    Science.gov (United States)

    Chinta, Ravi; Rao, M B; Narendran, Vivek; Malla, Ganesh; Joshi, Hem

    2013-01-01

    Incidence of headaches across different regions and its relationship to unemployment rates in the United States before and during an economic recession was evaluated. Years 2008 and 2009 were determined as recessionary period. Headache-related admissions, particularly the uncomplicated headaches, increased significantly during recession. Proportion of women with headaches has increased and the age group of 25-54 years was the most affected during the recession. The hospital charges have increased even though the average length and charge of stay decreased. These findings are consistent with our understanding of effects of stress and unemployment on psychological and physical health.

  14. Reflections on a Century of College Admissions Tests

    OpenAIRE

    Richard C. Atkinson and Saul Geiser

    2009-01-01

    Standardized testing for college admissions has grown exponentially since the first administration of the old “College Boards†in 1901. This paper surveys major developments since then: the introduction of the “Scholastic Aptitude Test†in 1926, designed to tap students’ general analytic ability; E.F. Lindquist’s creation of the ACT in 1959 as a competitor to the SAT, intended as a measure of achievement rather than ability; the renewed interest on the part of some leading colleges ...

  15. A Fuzzy Logic Based Power Control for Wideband Code Division Multiple Access Wireless Networks

    Directory of Open Access Journals (Sweden)

    T. Ravichandran

    2012-01-01

    Full Text Available Problem statement: Resource management is one of the most important engineering issues in 3G systems where multiple traffic classes are supported each being characterized by its required Quality of Service (QoS parameters. Call Admission Control (CAC is one of the resource management functions, which regulates network access to ensure QoS provisioning. Efficient CAC is necessary for the QoS provisioning in WCDMA environment. The effective functioning of WCDMA systems is influenced by the power control utility. Approach: In this study, we propose to design a fuzzy logic based power control for Wideband Code Division Multiple Access Wireless Networks. This proposed technique is aimed at multiple services like voice, video and data for multiclass users. The fuzzy logic technique is used to estimate the optimal admissible users group inclusive of optimum transmitting power level. This technique reduces the interference level and call rejection rate. Results: By simulation results, we demonstrate that the proposed technique achieve reduced energy consumption for a cell with increased throughput. Conclusion: The proposed technique minimizes the power consumption and call rejection rate.

  16. 76 FR 4896 - Call for Candidates

    Science.gov (United States)

    2011-01-27

    ... From the Federal Register Online via the Government Publishing Office FEDERAL ACCOUNTING STANDARDS ADVISORY BOARD Call for Candidates AGENCY: Federal Accounting Standards Advisory Board. ACTION: Notice... Federal Accounting Standards Advisory Board (FASAB) is currently seeking candidates (candidates must...

  17. Engineers call for US nuclear safety fix

    Science.gov (United States)

    Gwynne, Peter

    2016-04-01

    Seven Nuclear Regulatory Commission (NRC) engineers have called on the commission to force the owners of US nuclear reactors to repair a design flaw that could affect the safe operation of emergency core cooling systems.

  18. Mourning Dove Call-count Survey

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Mourning Dove (Zenaida macroura) Call-Count Survey was developed to provide an index to population size and to detect annual changes in mourning dove breeding...

  19. BUSINESS MODELS FOR EXTENDING OF 112 EMERGENCY CALL CENTER CAPABILITIES WITH E-CALL FUNCTION INSERTION

    OpenAIRE

    Pop Dragos Paul; Botezatu Cornelia Paulina; Botezatu Cezar; Carutasu George

    2010-01-01

    The present article concerns present status of implementation in Romania and Europe of eCall service and the proposed business models regarding eCall function implementation in Romania. eCall system is used for reliable transmission in case of crush between In Vehicle System and Public Service Answering Point, via the voice channel of cellular and Public Switched Telephone Network (PSTN). eCall service could be initiated automatically or manual the driver. All data presented in this article a...

  20. Identifying users profiles from mobile calls habits

    OpenAIRE

    Furletti, Barbara; Gabrielli, Lorenzo; Rinzivillo, Salvatore; Renso, Chiara

    2012-01-01

    The huge quantity of positioning data registered by our mobile phones stimulates several research questions, mainly originating from the combination of this huge quantity of data with the extreme heterogeneity of the tracked user and the low granularity of the data. We propose a methodology to partition the users tracked by GSM phone calls into profiles like resident, commuters, in transit and tourists. The methodology analyses the phone calls with a combination of top-down and bottom up tech...

  1. Application for call center data analysis

    OpenAIRE

    KLEMENČIČ, DAMJAN

    2015-01-01

    Graduation thesis describes the planning and design of desktop application CTI Server that is used in call and dispatch centers, where they have communication server (PBX) Siemens. Application collects data that is sent from communication server and stores them in data base for subsequent processing. It also displays current status of agents and telephony connections, call history and agent logs for a certain period of time. With the data obtained from communication server the application ...

  2. Call-Center-Forschung: Ergebnisse und Theorien

    OpenAIRE

    Holtgrewe, Ursula

    2003-01-01

    "In den letzten Jahren haben sich ForscherInnen aus unterschiedlichen Richtungen der Industrie-, Arbeits- und Organisationssoziologie für Call Center interessiert. Der Grund dafür liegt nicht allein darin, dass es sich um einen schnell expandierenden Bereich der Dienstleistungsarbeit handelt. Es scheint vielmehr, dass sich in den Call Centern exemplarisch eine Reihe von Themen und Tendenzen bündelt, die die Arbeit in Dienstleistungs- und Wissensgesellschaften bestimmen. So s...

  3. Calling patterns in human communication dynamics

    OpenAIRE

    Jiang, Zhi-Qiang; Xie, Wen-Jie; Li, Ming-Xia; Podobnik, Boris; Zhou, Wei-Xing; Stanley, H. Eugene

    2013-01-01

    Modern technologies not only provide a variety of communication modes, e.g., texting, cellphone conversation, and online instant messaging, but they also provide detailed electronic traces of these communications between individuals. These electronic traces indicate that the interactions occur in temporal bursts. Here, we study the inter-call durations of the 100,000 most-active cellphone users of a Chinese mobile phone operator. We confirm that the inter-call durations follow a power-law dis...

  4. Communication cliques in mobile phone calling networks

    Science.gov (United States)

    Li, Ming-Xia; Xie, Wen-Jie; Jiang, Zhi-Qiang; Zhou, Wei-Xing

    2015-11-01

    People in modern societies form different social networks through numerous means of communication. These communication networks reflect different aspects of human's societal structure. The billing records of calls among mobile phone users enable us to construct a directed calling network (DCN) and its Bonferroni network (SVDCN) in which the preferential communications are statistically validated. Here we perform a comparative investigation of the cliques of the original DCN and its SVDCN constructed from the calling records of more than nine million individuals in Shanghai over a period of 110 days. We find that the statistical properties of the cliques of the two calling networks are qualitatively similar and the clique members in the DCN and the SVDCN exhibit idiosyncratic behaviors quantitatively. Members in large cliques are found to be spatially close to each other. Based on the clique degree profile of each mobile phone user, the most active users in the two calling networks can be classified in to several groups. The users in different groups are found to have different calling behaviors. Our study unveils interesting communication behaviors among mobile phone users that are densely connected to each other.

  5. 47 CFR 22.921 - 911 call processing procedures; 911-only calling mode.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false 911 call processing procedures; 911-only calling mode. 22.921 Section 22.921 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON... procedures; 911-only calling mode. Mobile telephones manufactured after February 13, 2000 that are capable...

  6. Behavioral Preferences for Individual Securities : The Case for Call Warrants and Call Options

    NARCIS (Netherlands)

    Ter Horst, J.R.; Veld, C.H.

    2002-01-01

    Since 1998, large investment banks have flooded the European capital markets with issues of call warrants.This has led to a unique situation in the Netherlands, where now call warrants, traded on the stock exchange, and long-term call options, traded on the options exchange, exist.Both entitle their

  7. Predicting outcome on admission and post-admission for acetaminophen-induced acute liver failure using classification and regression tree models.

    Directory of Open Access Journals (Sweden)

    Jaime Lynn Speiser

    Full Text Available Assessing prognosis for acetaminophen-induced acute liver failure (APAP-ALF patients often presents significant challenges. King's College (KCC has been validated on hospital admission, but little has been published on later phases of illness. We aimed to improve determinations of prognosis both at the time of and following admission for APAP-ALF using Classification and Regression Tree (CART models.CART models were applied to US ALFSG registry data to predict 21-day death or liver transplant early (on admission and post-admission (days 3-7 for 803 APAP-ALF patients enrolled 01/1998-09/2013. Accuracy in prediction of outcome (AC, sensitivity (SN, specificity (SP, and area under receiver-operating curve (AUROC were compared between 3 models: KCC (INR, creatinine, coma grade, pH, CART analysis using only KCC variables (KCC-CART and a CART model using new variables (NEW-CART.Traditional KCC yielded 69% AC, 90% SP, 27% SN, and 0.58 AUROC on admission, with similar performance post-admission. KCC-CART at admission offered predictive 66% AC, 65% SP, 67% SN, and 0.74 AUROC. Post-admission, KCC-CART had predictive 82% AC, 86% SP, 46% SN and 0.81 AUROC. NEW-CART models using MELD (Model for end stage liver disease, lactate and mechanical ventilation on admission yielded predictive 72% AC, 71% SP, 77% SN and AUROC 0.79. For later stages, NEW-CART (MELD, lactate, coma grade offered predictive AC 86%, SP 91%, SN 46%, AUROC 0.73.CARTs offer simple prognostic models for APAP-ALF patients, which have higher AUROC and SN than KCC, with similar AC and negligibly worse SP. Admission and post-admission predictions were developed.• Prognostication in acetaminophen-induced acute liver failure (APAP-ALF is challenging beyond admission • Little has been published regarding the use of King's College Criteria (KCC beyond admission and KCC has shown limited sensitivity in subsequent studies • Classification and Regression Tree (CART methodology allows the

  8. A New Experience in Medical Student Admission in Iran

    Directory of Open Access Journals (Sweden)

    R Majdzadeh

    2009-03-01

    Full Text Available "nMedical education in Iran has witnessed important reforms within the last three decades. Among them was the formation of the Ministry of Health and Medical Education and a sudden rise in medical student admissions. This reform took place in a specific time period and was aimed to meet the country's requirement of training more physicians. Other reforms have aimed to improve the quality and outcomes of physician training. This is possible through two measures: a change in medi­cal education procedures, or a change in the ‘input' of medical education (i.e. students or both. Graduate admission to medical schools is a step toward changing the ‘input'. In 2008, twenty one bachelor students were admitted in Tehran Uni­versity of Medical Sciences through a series of prerequisites, tough scientific exams and structured interviews. This move had three objectives: strengthening the links between basic and clinical sciences, selecting the students on the basis of a wider range of criteria (instead of strictly academic ones, and providing a chance for applicants to make a more informed choice of medicine (considering that the graduate applicants are older and have previous academic experience. Further ar­eas of education reform are also being followed: a change in medical students' educational content and procedures, and con­siderations and development of joint degrees such as MD-MPH and MD-PhD.

  9. Effectiveness of student admission essays in identifying attrition.

    Science.gov (United States)

    Sadler, Judith

    2003-11-01

    Nursing school admission selection processes exist to select the "best and brightest" applicants assuming that those selected will be successful. However, attrition occurs. Effectiveness of grade point averages (GPAs) and test scores have been reported, while the effectiveness of essays in predicting attrition in undergraduate nursing education has not been reported in the literature. For the purposes of this study, attrition was defined as students enrolled in courses following acceptance into the program who did not complete the program. Data from a retrospective longitudinal sample including 236 students from one baccalaureate nursing program were analyzed for differences between students who completed the program ("completers", n=193) and those who dropped out ("non-completers", n=43). t-tests between the group mean essay scores revealed a statistical difference (t=2.092, p=0.043), while there was no statistical difference (t=0.22, p=ns) between the mean admission GPAs of the groups. Content analysis revealed thematic differences in the essays. Non-completers tended to write about nursing as external to themselves, in contrast to the completers who described an internalization of the role. Answers to questions of motivation for entering nursing and personal experience with a nurse may provide helpful information in selecting those students most likely to complete the program. PMID:14554116

  10. ENVIRONMENTAL HAZARDS AS A CAUSE OF PEDIATRIC INTENSIVE CARE ADMISSION

    Directory of Open Access Journals (Sweden)

    Nasser Ali Haidar

    2014-12-01

    Full Text Available Background: Children are exposed to several environmental hazards with variable effects from mild to severe manifestations leading to death. The aim of this study is to study the pattern of Pediatric Intensive Care Unit (PICU admission due to environmental hazards and its mortality rate. Methods: This is a hospital-based study conducted during a 5 years period in Al-Madinah Al-Munwarah, Saudi Arabia. Results: Out of total PICU admissions, 9% were due to environmental hazards. Bronchial asthma which is triggered mostly by environmental factors, was the most common (35.3% followed by: trauma (27%, poisoning (15.3% and submersion injuries (9.7%. Males were significantly more exposed to environmental hazard than females (χ2= 13, p = 0.021. Statistical analysis showed a significant difference in the frequency of environmental hazards between summer and winter (χ2= 12, p = 0.033. Trauma, poisoning, submersion injuries, stings and bites were more in summer compared to winter. However, bronchial asthma had higher frequency in winter. The Median length of PICU stay ranges from 1.6 – 12.5 days depending on the type of hazard. Overall mortality rate was 8.8% with the highest rate among trauma followed by submersion injury patients with no fatality in drug ingestion or food poisoning. Conclusion: Environmental hazards represent a preventable major health problem with significant mortality and burden in health economics by long PICU stay and its sequel.

  11. Developing a customized multiple interview for dental school admissions.

    Science.gov (United States)

    Gardner, Karen M

    2014-04-01

    From the early 1980s until recently, the University of British Columbia Faculty of Dentistry had employed the Canadian Dental Association (CDA) Structured Interview in its Phase 2 admissions process (with those applicants invited for interviews). While this structured interview had demonstrated reliability and validity, the Faculty of Dentistry came to believe that a multiple interview process using scenarios would help it better identify applicants who would match its mission. After a literature review that investigated such interview protocols as unstructured, semi-structured, computerized, and telephone formats, a multiple interview format was chosen. This format was seen as an emerging trend, with evidence that it has been deemed fairer by applicants, more reliable by interviewers, more difficult for applicants to provide set answers for the scenarios, and not to require as many interviewers as other formats. This article describes the process undertaken to implement a customized multiple interview format for admissions and reports these outcomes of the process: a smoothly running multiple interview; effective training protocols for staff, interviewers, and applicants; and reports from successful applicants and interviewers that they felt the multiple interview was a more reliable and fairer recruiting tool than other models.

  12. Temporal trends in the use of antithrombotics at admission

    DEFF Research Database (Denmark)

    Madsen, Christian Medom; Jantzen, Christopher; Lauritzen, Jes Bruun;

    2016-01-01

    Background and purpose - Currently, no clear evidence exists on the pattern of use of antithrombotics at admission in hip fracture patients and how this has changed over time. We investigated temporal trends in-and factors associated with-the use of antithrombotics in patients admitted with a fra......Background and purpose - Currently, no clear evidence exists on the pattern of use of antithrombotics at admission in hip fracture patients and how this has changed over time. We investigated temporal trends in-and factors associated with-the use of antithrombotics in patients admitted...... with a fractured hip. Patients and methods - This was a population-based cohort study including all patients aged 18 years or above who were admitted with a hip fracture in Denmark from 1996 to 2012. The Danish national registries were used to collect information on medication use, vital status, and comorbidity...... for possible confounders, the use of antithrombotics still increased for every calendar year (relative risk (RR) = 1.03, CI: 1.03-1.04; p fracture...

  13. Development of a Medical School Admissions Interview Phase 2: Predictive Validity of Cognitive and Non-Cognitive Attributes

    OpenAIRE

    Streyffeler, Lisa; Altmaier, Elizabeth M.; Kuperman, Samuel; Patrick, Luke E.

    2009-01-01

    Background: Interest in improving medical school admissions processes led to the development of a structured admissions interview to eliminate potential bias and provide valid information for selection. This article reports on the degree to which this interview, along with other admissions variables, predicted later student performance during medical school. Methods: All applicants considered for admission participated in the new interview. Interview scores and regular admissions data were co...

  14. Behavioral Preferences for Individual Securities : The Case for Call Warrants and Call Options

    OpenAIRE

    Ter Horst, J.R.; Veld, C.H.

    2002-01-01

    Since 1998, large investment banks have flooded the European capital markets with issues of call warrants.This has led to a unique situation in the Netherlands, where now call warrants, traded on the stock exchange, and long-term call options, traded on the options exchange, exist.Both entitle their holders to buy shares of common stock.We use the long-term call options in order to price the call warrants.Using the model of Black and Scholes (1973), the Square Root model version of the Consta...

  15. Admission medical records made at night time have the same quality as day and evening time

    DEFF Research Database (Denmark)

    Amirian, Ilda; Mortensen, Jacob F; Rosenberg, Jacob;

    2014-01-01

    INTRODUCTION: A thorough and accurate admission medical record is an important tool in ensuring patient safety during the hospital stay. Surgeons' performance might be affected during night shifts due to sleep deprivation. The aim of the study was to assess the quality of admission medical records...... during day, evening and night time. MATERIAL AND METHODS: A total of 1,000 admission medical records were collected from 2009 to 2013 based equally on four diagnoses: mechanical bowel obstruction, appendicitis, gallstone disease and gastrointestinal bleeding. The records were reviewed for errors by a pre......-defined checklist based on Danish standards for admission medical records. The time of dictation for the medical record was registered. RESULTS: A total of 1,183 errors were found in 778 admission medical records made during day- and evening time, and 322 errors in 222 admission medical records from night time...

  16. The impact of virtual admission on self-efficacy in patients with chronic obstructive pulmonary disease

    DEFF Research Database (Denmark)

    Emme, Christina; Mortensen, Erik L; Rydahl-Hansen, Susan;

    2014-01-01

    AIMS AND OBJECTIVES: To investigate how virtual admission during acute exacerbation influences self-efficacy in patients with chronic obstructive pulmonary disease, compared with conventional hospital admission. BACKGROUND: Telemedicine solutions have been highlighted as a possible way to increase...... self-efficacy in patients with chronic diseases, such as chronic obstructive pulmonary disease. However, little is known about how telemedicine-based virtual admission as a replacement of hospital admission during acute exacerbation affects chronic obstructive pulmonary disease patients' self-efficacy......: Participants were consecutively randomised to virtual admission or conventional hospital admission. Data from 50 patients were analysed. Self-efficacy was assessed at baseline, three days after discharge, and also six weeks and three months after discharge, using the Danish version of 'The chronic obstructive...

  17. Qualitative critical incident study of patients’ experiences leading to emergency hospital admission with advanced respiratory illness

    OpenAIRE

    Karasouli, Eleni; Munday, Daniel; Bailey, Cara; Staniszewska, Sophie; Hewison, Alistair; Griffiths, Frances

    2016-01-01

    Objectives The high volume of emergency admissions to hospital is a challenge for health systems internationally. Patients with lung cancer and chronic obstructive pulmonary disease (COPD) are frequently admitted to hospital as emergency cases. While the frequency of emergency admission has been investigated, few studies report patient experiences, particularly in relation to the decision-making process prior to emergency admission. We sought to explore patient and carer experiences and those...

  18. A medical admission unit reduces duration of hospital stay and number of readmissions

    DEFF Research Database (Denmark)

    Vork, Jan C; Brabrand, Mikkel; Folkestad, Lars;

    2011-01-01

    Political initiatives promoting a more efficient emergency admission process have triggered a reorganisation of the Danish health system with a view to creating fewer and larger admission units counting more experienced physicians. At our hospital, a medical admission unit (MAU) was established. ...... present the effect of this on the length of hospital stay, mortality rates and the number of readmissions for the last year with the previous structure and the first year of the new MAU structure....

  19. The influence of life events on first and recurrent admissions in bipolar disorder

    OpenAIRE

    Kemner, Sanne M; van Haren, Neeltje E. M.; Bootsman, Florian; Eijkemans, Marinus J C; Vonk, Ronald; van der Schot, Astrid C.; Willem A Nolen; Hillegers, Manon H J

    2015-01-01

    Methods: We collected information about life events and admissions across the life span in 51 bipolar patients. We constructed four models to explore the decay of life event effects on admissions. To test their interaction, we used the Andersen-Gill model. Background: Life events play an important role in the onset and course of bipolar disorder. We will test the influence of life events on first and recurrent admissions in bipolar disorder and their interaction to test the kindling hypothesi...

  20. Admission hyperuricemia increases the risk of acute kidney injury in hospitalized patients *

    OpenAIRE

    Cheungpasitporn, Wisit; Thongprayoon, Charat; Harrison, Andrew M.; Erickson, Stephen B.

    2015-01-01

    Background The association between elevated admission serum uric acid (SUA) and risk of in-hospital acute kidney injury (AKI) is limited. The aim of this study was to assess the risk of developing AKI in all hospitalized patients with various admission SUA levels. Methods This is a single-center retrospective study conducted at a tertiary referral hospital. All hospitalized adult patients who had admission SUA available from January 2011 through December 2013 were analyzed in this study. Admi...