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Sample records for admission control policy

  1. Cross-Layer Connection Admission Control Policies for Packetized Systems

    OpenAIRE

    SHENG, WEI; Blostein, Steven

    2010-01-01

    In summary, this chapter provides a framework for joint optimization of packet-switched multiple-antenna systems across physical, packet and connection levels. We extend the existing CAC policies in packet-switched networks to more general cases, where the SINR may vary quickly relative to the connection time, as encountered in multiple antenna base stations. Compared with the CAC policy for circuit-switched networks, the proposed connection admission control policy allows dynamical allocatio...

  2. Maximally Stabilizing Admission Control Policy for a Dynamical Queue

    CERN Document Server

    Savla, Ketan

    2009-01-01

    In this paper, we consider the following stability problem for a novel dynamical queue. Independent and identical tasks arrive for a queue at a deterministic rate. The server spends deterministic state-dependent times to service these tasks, where the server state is governed by its utilization history through a simple dynamical model. Inspired by empirical laws for human performance as a function of mental arousal, we let the service time be related to the server state by a continuous convex function. We consider an admission control architecture which regulates task entry into service. The objective in this paper is to design such admission control policies that can stabilize the dynamical queue for the maximum possible arrival rate, where the queue is said to be stable if the number of tasks awaiting service does not grow unbounded over time. First, we prove an upper bound on the maximum stabilizable arrival rate for any admission control policy by postulating a notion of one-task equilibrium for the dynam...

  3. A Policy-Based Admission Control Scheme for Voice over IP Networks

    OpenAIRE

    Sami Alwakeel; Agung Prasetijo

    2009-01-01

    Problem statement: In Voice Over IP (VOIP) network, when more calls are admitted to the network, more voice packet traffic is created. Since bandwidth is always limited, this may result network congestion and/or may affect voice quality. Thus, we needed a mechanism for improving the Quality of Service (QoS) by controlling VOIP calls admission. Approach: Given a specified bandwidth and a constant background data rate, we attempted to explore the effect of Open Window and Leaky Bucket admission...

  4. Bias optimal admission control policies for a multiclass nonstationary queueing system

    OpenAIRE

    Lewis, Mark E.; Ayhan, Hayriye; Foley, Robert D.

    2002-01-01

    We consider a finite-capacity queueing system where arriving customers offer rewards which are paid upon acceptance into the system. The gatekeeper, whose objective is to `maximize' rewards, decides if the reward offered is sufficient to accept or reject the arriving customer. Suppose the arrival rates, service rates, and system capacity are changing over time in a known manner. We show that all bias optimal (a refinement of long-run average reward optimal) policies are o...

  5. Implementation av Network Admission Control

    OpenAIRE

    Sandqvist, Mattias; Johansson, Robert

    2007-01-01

    This examination work is about implementation of Cisco Systems Network Admission Control (NAC) within a leading IT-company in region of Jönköping. NAC is a technique that is used for securing the internal network from the inside. NAC can verify that the client who connects to the network has the latest antivirus updates and latest operative system hotfixes. Clients who don’t meet the criteria can be placed in quarantine VLAN where they only have access to the update servers. There are also fu...

  6. 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…

  7. 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.

  8. 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 ...

  9. Admission Control Techniques for UMTS System

    Directory of Open Access Journals (Sweden)

    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.

  10. Call Admission Control in Mobile Wireless

    OpenAIRE

    Goril, J.; Dobos, L.

    2002-01-01

    Some problems related to wireless network access are discussed in the article. Special attention is paid to Medium Access Control and Call Admission Control. Both have direct impact on communication link accession. While the first one dictates how to, the second one decides who can access the link. The problems with wireless medium access are mentioned and requirements on MAC protocols are named. Also need for CAC algorithms is illustrated and simple functional example is proposed. Finally, t...

  11. 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.

  12. Dynamic allocation and admission policies for QoS-aware provisioning systems

    DEFF Research Database (Denmark)

    Mazzucco, M.; Mazzara, M.; Dragoni, Nicola

    2013-01-01

    such that the service provider is liable to compensate his/her customers if the level of performance is not satisfactory. The system is driven by a utility function which tries to optimise the average earned revenue per unit time. The middleware collects demand and performance statistics, and estimates...... traffic parameters in order to make dynamic decisions concerning server allocation and admission control. We empirically evaluate the effects of admission policies, resource allocation and service differentiation schemes on the achieved revenues, and we find that our system is robust enough to...

  13. Admissions Policies as a Mechanism for Social Engineering: The Case of the Bulgarian Communist Regime

    Science.gov (United States)

    Boyadjieva, Pepka Alexandrova

    2013-01-01

    This article discusses admissions policies to higher education during the Communist regime in Bulgaria (1946-89). It argues that under the conditions of the Bulgarian Communist regime, admissions policies were not only a component of the higher education system--viewed as an institution--but part and parcel of the process through which power was…

  14. 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.

  15. 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.

  16. 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...

  17. When Race Disappears: College Admissions Policy Discourse in the State of Texas

    Science.gov (United States)

    Winkle-Wagner, Rachelle; Sulè, V. Thandi; Maramba, Dina C.

    2014-01-01

    What happens to race in public discussions about "race-neutral" college admissions policies? This article shows how race disappeared from elite political debate during hearings on Texas Senate Bill 175 (2009), the Top Ten Percent Plan (the Plan), which guaranteed college admissions to high school graduates from the top 10% of their…

  18. BSW Program Admission Policies: Is There Empirical Support for What We Do?

    Science.gov (United States)

    Coyle, James P.; Carter, Irene M.; Leslie, Donald R.

    2011-01-01

    Social work admission criteria are used to ensure student academic competence, identify personal characteristics associated with success in social work education and practice, predict success in class and field work, and promote diversity of the student body. However, evidence that supports the effectiveness of these admission policies is…

  19. 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...

  20. 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.

  1. SIMULATION MODELS OF CALL ADMISSION CONTROL SCHEMES USING GPSS

    Directory of Open Access Journals (Sweden)

    Vassilya ABDULOVA

    2014-01-01

    Full Text Available In cellular wireless networks, a variety of channel allocation schemes have been developed for achieving high capacity with minimal interference. The choice of channel allocation scheme impacts the performance of the system, particularly as how calls are managed when a mobile user is handed off from one cell to another. Call Admission Control schemes take into account the effect of handoffs in the performance of the system, particularly call blocking probability and call dropping probability. In this study, we present simulation models and programs of some popular Call Admission Control schemes using GPSS simulation tool.

  2. Efficient Admission Control for Next Generation Cellular Networks

    DEFF Research Database (Denmark)

    Ramkumar, Venkata; Stefan, Andrei Lucian; Nielsen, Rasmus Hjorth; Prasad, Neeli R.; Prasad, Ramjee

    This paper proposes a novel efficient admission control (AC) algorithm, which guarantees quality of service (QoS) for new users while maintaining QoS for existing users and also increases the number of users admitted in to the system. To guarantee the QoS, a Markov based modeling of the queue in...

  3. 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...

  4. Measurement Based Admission Control Methods in IP Networks

    Directory of Open Access Journals (Sweden)

    Erik Chromy

    2013-09-01

    Full Text Available Trends in telecommunications show that customers require still more and more bandwidth. If the telecommunication operators want to be successful, they must invest a lot of money to their infrastructure and they must ensure required quality of service. The telecommunication operators would devote to development in this area. The article deals with quality of service in IP networks. Problems of quality of service can be solved through admission control methods based on measurements. These admission control methods take care of control of incoming traffic load. New flow can be accepted only if needed quality of service is ensured for it and without quality of service breach causing of already accepted flows. In the article were made description of simulations and results of simulations for Voice over IP, constant bit rate and video sources. Simulations were realized in Network simulator 2 environment. These simulations were evaluated on the base of some parameters such as: estimated bandwidth, utilization and loss rate.

  5. 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.

  6. Testing Peer Effects among College Students: Evidence from an Unusual Admission Policy Change in China

    Science.gov (United States)

    Lu, Fangwen

    2014-01-01

    This paper studies a natural experiment due to an unusual change in the college admission policy at a Chinese university, which brought a large number of low-score students into several academic departments in the university. Exploiting large variations in peer characteristics and strong interactions among peer groups, the analysis finds that…

  7. BARTER: Behavior Profile Exchange for Behavior-Based Admission and Access Control in MANETs

    Science.gov (United States)

    Frias-Martinez, Vanessa; Stolfo, Salvatore J.; Keromytis, Angelos D.

    Mobile Ad-hoc Networks (MANETs) are very dynamic networks with devices continuously entering and leaving the group. The highly dynamic nature of MANETs renders the manual creation and update of policies associated with the initial incorporation of devices to the MANET (admission control) as well as with anomaly detection during communications among members (access control) a very difficult task. In this paper, we present BARTER, a mechanism that automatically creates and updates admission and access control policies for MANETs based on behavior profiles. BARTER is an adaptation for fully distributed environments of our previously introduced BB-NAC mechanism for NAC technologies. Rather than relying on a centralized NAC enforcer, MANET members initially exchange their behavior profiles and compute individual local definitions of normal network behavior. During admission or access control, each member issues an individual decision based on its definition of normalcy. Individual decisions are then aggregated via a threshold cryptographic infrastructure that requires an agreement among a fixed amount of MANET members to change the status of the network. We present experimental results using content and volumetric behavior profiles computed from the ENRON dataset. In particular, we show that the mechanism achieves true rejection rates of 95% with false rejection rates of 9%.

  8. On channel-adaptive multiple burst admission control for mobile computing based on wideband CDMA

    OpenAIRE

    Lau, VKN; Kwok, YK

    2001-01-01

    Mobile computing systems built using third generation wireless standards are mostly based on the wideband CDMA platform to support high bit rate packet data services. One important component offering packet data service in CDMA is a burst admission control algorithm. We formulate the multiple-burst admission control problem as an integer programming problem, which induces our novel jointly adaptive burst admission algorithm, called the jointly adaptive burst admission-spatial dimension algori...

  9. 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.

  10. 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, the...... power budget with a given thermal comfort constraint is optimized through budget-schedulability analysis which amounts to solving a constrained linear programming problem. Second, the effective peak power demand is reduced by means of the optimal scheduling and cooperative operation of multiple thermal...... 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....

  11. 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.

  12. "City Blood Is No Better than Country Blood": The Populist Movement and Admissions Policies at Public Universities

    Science.gov (United States)

    Gelber, Scott

    2011-01-01

    This article focuses on historical admissions policies and offers a more nuanced and more substantial treatment of the relationship between Populism and higher education. Prior accounts of admissions in the late nineteenth century have sensibly focused upon the tension between secondary school leaders who were mindful of their multiple…

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

    Directory of Open Access Journals (Sweden)

    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.

  14. Status of Admission Policies and Practices at Four-Year Public Institutions of Higher Education in Virginia Implemented to Evaluate Home School Applicants

    OpenAIRE

    Davis, Rebecca J.

    2000-01-01

    The purpose of this study was to determine how current admission policies and practices at four-year public institutions of higher education in Virginia are implemented to evaluate home school applicants. University administrators, admission officials, and other interested individuals may gain insight into (a) admission policy implementation and informal practices, (b) anticipated policy revisions or new policy developments, (c) evaluative criteria currently being utilized to evaluate applica...

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

    Directory of Open Access Journals (Sweden)

    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.

  16. Formulating Recruitment and Retention Policies at the University of Delaware: From Affirmative Action to Diversity in Financial Aid and Admissions

    Science.gov (United States)

    Burton, Johnie A., Jr.

    2010-01-01

    In 2003, the United States Supreme Court decided on two cases that involved affirmative action policies for admission to the University of Michigan at Ann Arbor Law School and the College of Literature, Science and the Arts. Those cases, "Gratz v. Bollinger" (2003) and "Grutter v. Bollinger" (2003) had implications for the policies universities…

  17. Design and evaluation of an optimization based approach to multiple burst admission control for cdma2000

    OpenAIRE

    Lau, VKN; Kwok, YK

    2001-01-01

    In our recent study, we have formulated the burst admission control problem for wideband CDMA systems as an integer programming problem. In this paper, we propose and analyze the performance of a novel burst admission technique, called the multiple-burst admission-spatial dimension algorithm (MBA-SD) to judiciously allocate the previous channels in wideband CDMA systems to burst requests. Both the forward link and the reverse link burst requests are considered and the system is simulated by d...

  18. Optimal admission control algorithms for scheduling burst data in CDMA multimedia systems

    OpenAIRE

    Kwok, YK; Lau, VKN

    2001-01-01

    3rd generation mobile systems are mostly based on the wideband CDMA platform to support high bit rate packet data services. One important component to offer packet data service in CDMA is a burst admission control algorithm. In this paper, we propose and study a novel jointly adaptive burst admission algorithm, namely the jointly adaptive burst admission-spatial dimension algorithm (JABA-SD) to effectively allocate valuable resources in wideband CDMA systems to burst requests. In the physical...

  19. Towards a Diversified Legal Profession: An Inquiry into the Law School Admission Test, Grade Inflation, and Current Admissions Policies. [with] A Statement from the National Institute of Education "An Investigation into the Validity and Cultural Bias of the Law School Admission Test."

    Science.gov (United States)

    White, David M., Ed.

    This is the final report and critique which investigated the law school admissions process, and especially the role of the Law School Admission Test (LSAT) within that process, for possible bias against minority applicants. The study involved the reanalysis of existing data. Results show that current admission policies unfairly limit the…

  20. Tradable Refugee-admission Quotas: a Policy Proposal to Reform the EU Asylum Policy

    OpenAIRE

    Hillel Rapoport; Jesús Fernández-Huertas Moraga

    2014-01-01

    he current EU Asylum policy is widely seen as ineffective and unfair. We propose an EU-wide market for tradable quotas on both refugees and asylum-seekers coupled with a matching mechanism linking countries' and migrants' preferences. We show that the proposed system can go a long way towards addressing the shortcomings of the existing system. We illustrate this claim using the recent problems regarding relocation faced by the European Asylum Support Office (EASO) in Malta.

  1. 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.

  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. Policy-driven tobacco control

    OpenAIRE

    Francis, John A; Abramsohn, Erin M; Park, Hye-Youn

    2010-01-01

    Background Since the passage of Proposition 99, California's comprehensive tobacco control programme has benefited from a localised policy adoption process that allows for the innovation and diffusion of strong local tobacco control policies throughout the state. Methods The policy adoption continuum is described in the context of California's smoke-free workplace movement, and the influence of policy-driven tobacco control initiatives on social norms, behaviour and the public's health was ex...

  4. 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.

  5. Continuous non contacting control of the degree of admission of filler rods

    International Nuclear Information System (INIS)

    In laboratory tests a method was found to control continuously and non-contacting the degree of admission of filler rods. Behind the filling station the absorption of the ionizing radiation of a 90Sr beta source is measured. After successful tests with the laboratory equipment on the manufacturing machine of filler rods a prototype plant was constructed. The calibration is made by setting the measuring value of the empty filler rod equal to 0% and the measuring value of the optimum degree of admission equal to 100%. Between these two joints a scale is calculated so that to each measuring value a degree of admission can be assigned. The measuring time is 1 s. The limits of the allowable degrees of admission are freely adjustable. The construction of the plant is described. (authors)

  6. 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.

  7. 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.

  8. 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…

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

    DEFF Research Database (Denmark)

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

    Dette dokument foreslår et nyt opkald Admission Control (CAC) algoritme, der finder forskellige typer af applikationer med forskellige QoS parametre, som en bruger og giver de nødvendige QoS til nyankomne brugere uden en forringelse af de QoS at der allerede er optaget dem. Den foreslåede CAC er ...

  10. 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 ...

  11. 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.

  12. The Impact of the Revamped SAT on Admissions Policies Among Western Land Grant Institutions

    Science.gov (United States)

    Choroszy, Melisa N.; Muehlberg, Jessica

    2006-01-01

    The newly revamped Scholastic Aptitude Test (SAT) was administered for the first time in March 2005. Administrators, faculty, and staff in colleges and universities throughout the country were asking the same questions as students: "What was this new score of 2400 and what would it mean for them in terms of admissions, scholarships, and course…

  13. 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...

  14. 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.

  15. 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...

  16. 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; Iversen, Villy Bæk

    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...... dimensioning and planning. This paper investigates the computationally efficient loss performance modeling for multiservice in hierarchical heterogeneous wireless networks. A speed-sensitive call admission control (CAC) scheme is considered in our model to assign overflowed calls to appropriate tiers. This...

  17. Entrance Exam Admission Policies on Ethnic Minorities and Equal Educational Rights for Minorities in China

    Science.gov (United States)

    Weiwei, Lang

    2010-01-01

    In 1977, the Chinese government reinstated the national unified college entrance exam enrollment system. As a part of this system, the government also implemented preferential policies on the enrollment of minorities that authorized the increase or decrease of exam scores and enrollment cutoff points; the policies were therefore seen as…

  18. Estimated Bandwidth Distribution with Admission Control for Enhanced QoS Multicast Routing in MANETs

    Directory of Open Access Journals (Sweden)

    P.Revathi

    2009-09-01

    Full Text Available Wireless networks become more widely used to support advanced services. Traditional approaches to guarantee quality of service (QoS work well only with predictable channel and network access. The Multicast transmission is a more efficient mechanism when compared to uni-casting in supporting group communication applications and hence is an important aspect of future network developments. To enable high QoS for all admitted traffic, the Admission Control monitors the wireless channel and dynamically adapts admission control decisions to enable high network utilization while preventing congestion. Mobile Adhoc networks can provide multimedia users with mobility, if efficient QoS multicast strategies were developed. In load balancing QoS Multicast Routing QMR, constant available bandwidth for the link is assumed. A cross-layer framework to support QoS multicasting is extended for more effective than QMR. The extension reflects good packet delivery ratios associated with lower control overhead and lower packet delivery delay. If minimum real-time requirements are not met, these unusable packets waste scarce bandwidth and hinder other traffic, compounding the problem. Whereas the dynamically adapted mobility with control overhead monitors the high QoS for all admitted traffic, and the bandwidth for each node is enhanced to reflect the good packet delivery ratio associated with lower control overhead and lower packet delivery delay.

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

    Directory of Open Access Journals (Sweden)

    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.

  20. Control Structures and Payout Policy

    OpenAIRE

    Renneboog, L.D.R.; Trojanowski, G.

    2005-01-01

    This paper examines the payout policies of UK firms listed on the London Stock Exchange during the 1990s.It complements the existing literature by analyzing the trends in both dividends and total payouts (including share repurchases).In a dynamic panel data regression setting, we relate target payout ratios to control structure variables.Profitability drives payout decisions of the UK companies, but the presence of strong block holders or block holder coalitions considerably weakens the relat...

  1. Dynamic admission control for differentiated quality of video in IEEE 802.11e wireless LANs

    Science.gov (United States)

    Yoon, Hayoung; Kim, JongWon

    2004-10-01

    In this paper, we are investigating a dynamic admission control (DAC) scheme that is designed for guaranteed wireless video transmission over the IEEE 802.11e wireless LAN (WLAN) environment. To guarantee differentiated QoS services for network-adaptive video streaming, the proposed DAC is designed to utilize the video codec's layering characteristic as well as differentiation-capability of IEEE 802.11e MAC (multiple access control). Especially in order to match the time-varying hostile wireless environment, limited wireless resources for transmission opportunities are required to be dynamically reserved, coordinated, and utilized. Proposed realization of DAC is composed with three sub modules: reservation-based call admission control (CAC), dynamic service resource allocation, and on-flow service differentiation modules. To evaluate the performance of proposed DAC, we apply it to the wireless streaming of ITU-T H.263+ streams over the IEEE 802.11e WLAN, network simulator (NS-2) based simulation results show that it achieves both acceptable receiver-side video quality and efficient resource utilization in face of network loads and channel variations.

  2. Race-Neutral Policies for Professional School Admissions: Are There Strategies to Enhance Latino Enrollment?

    Science.gov (United States)

    de la Torre, Adela

    2004-01-01

    Affirmative action policies have played a critical role in promoting equal opportunity for both Latino faculty and Latino students in higher education. Affirmative action, one of the social programs that evolved from the civil rights movement, was aimed at increasing opportunities employment and education for historically underrepresented groups…

  3. 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.

  4. Admission policy, patterns of migration and integration: the German and French case compared.

    Science.gov (United States)

    Seifert, W

    1997-10-01

    Germany and France differ in their concepts of citizenship and nationality. Those differences have led to different patterns of immigration to the two countries and to different policies on the integration of migrants. The French notion of equality has led to the development and implementation of a migration policy designed to assimilate migrants to mainstream French culture. Citizenship is therefore granted more on the principle of jus soli, with differences in status groups not held to exist. However, Germany's interpretation of citizenship has been based upon descent, and immigration policy has focused upon groups which have German ethnic backgrounds. During the period of economic demand for foreign labor, Germany did not plan to have permanent immigration and considered the employment of foreign labor to be a temporary measure. Yet even when the arrival of immigrants with no German ethnic background is accepted, there are still major differences in the integration of different ethnic groups. While ethnic Germans are privileged because they have the right to citizenship upon arrival to German, and are also entitled to various integration measures, other immigrant groups may often not be granted citizenship, even in the case of second or third generations. PMID:12179823

  5. Admission Control to Minimize Rejections and Online Set Cover with Repetitions

    CERN Document Server

    Alon, Noga; Gutner, Shai

    2008-01-01

    We study the admission control problem in general networks. Communication requests arrive over time, and the online algorithm accepts or rejects each request while maintaining the capacity limitations of the network. The admission control problem has been usually analyzed as a benefit problem, where the goal is to devise an online algorithm that accepts the maximum number of requests possible. The problem with this objective function is that even algorithms with optimal competitive ratios may reject almost all of the requests, when it would have been possible to reject only a few. This could be inappropriate for settings in which rejections are intended to be rare events. In this paper, we consider preemptive online algorithms whose goal is to minimize the number of rejected requests. Each request arrives together with the path it should be routed on. We show an $O(\\log^2 (mc))$-competitive randomized algorithm for the weighted case, where $m$ is the number of edges in the graph and $c$ is the maximum edge ca...

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

    Directory of Open Access Journals (Sweden)

    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.

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

    Directory of Open Access Journals (Sweden)

    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.

  8. 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.

  9. 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...

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. Tensions between policy and practice: A qualitative analysis of decisions regarding compulsory admission to psychiatric hospital.

    Science.gov (United States)

    Fistein, Elizabeth C; Clare, Isabel C H; Redley, Marcus; Holland, Anthony J

    2016-01-01

    The use of detention for psychiatric treatment is widespread and sometimes necessary. International human rights law requires a legal framework to safeguard the rights to liberty and personal integrity by preventing arbitrary detention. However, research suggests that extra-legal factors may influence decisions to detain. This article presents observational and interview data to describe how decisions to detain are made in practice in one jurisdiction (England and Wales) where a tension between policy and practice has been described. The analysis shows that practitioners mould the law into 'practical criteria' that appear to form a set of operational criteria for identifying cases to which the principle of soft paternalism may be applied. Most practitioners also appear willing, albeit often reluctantly, to depart from their usual reliance on the principle of soft paternalism and authorise detention of people with the capacity to refuse treatment, in order to prevent serious harm. We propose a potential resolution for the tension between policy and practice: two separate legal frameworks to authorise detention, one with a suitable test of capacity, used to enact soft paternalism, and the other to provide legal justification for detention for psychiatric treatment of the small number of people who retain decision-making capacity but nonetheless choose to place others at risk by refusing treatment. This separation of detention powers into two systems, according to the principle that justifies the use of detention would be intellectually coherent, consistent with human rights instruments and, being consistent with the apparent moral sentiments of practitioners, less prone to idiosyncratic interpretations in practice. PMID:27062108

  15. 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.

  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. Calculating effective gun control policies

    CERN Document Server

    Wodarz, Dominik

    2013-01-01

    Following recent shootings in the USA, a debate has erupted, one side favoring stricter gun control, the other promoting protection through more weapons. We provide a scientific foundation to inform this debate, based on population dynamic models that quantify the dependence of firearm-related death rates of people on gun policies. We assume a shooter attacking a single individual or a crowd. Two strategies can minimize deaths in the model, depending on parameters: either a ban of private firearms possession, or a policy allowing the general population to carry guns. In particular, the outcome depends on the fraction of offenders that illegally possess a gun, on the degree of protection provided by gun ownership, and on the fraction of the population who take up their right to own a gun and carry it with them when attacked, parameters that can be estimated from statistical data. With the measured parameters, the model suggests that if the gun law is enforced at a level similar to that in the United Kingdom, g...

  18. Evaluating Higher Education Policy in Turkey: Assessment of the Admission Procedure to Architecture, Planning, and Engineering Schools

    Science.gov (United States)

    Cubukcu, Kemal Mert; Cubukcu, Ebru

    2009-01-01

    The admission procedure to higher education institutions in Turkey is based on the student's high school grades and Central University Entrance Examination (CUEE) score, with a much greater weight on the latter. However, whether the CUEE is an appropriate measure in the admission process to universities is still a much-debated question. This study…

  19. Implementation of a Trauma Service Activation and Admission Policy for Very Elderly Trauma Patients: Impact on Hospital Efficiency and Patient Outcomes.

    Science.gov (United States)

    Kalina, Michael

    2016-06-01

    Very elderly trauma patients (VETs) were routinely admitted to nonsurgical services at our institution; therefore, a trauma service activation and admission policy was implemented. Our goal was to determine policy success and impact on efficiency and outcomes. VETs, defined as trauma patients aged >89 years, admitted before and after policy implementation were reviewed. Demographics included age, gender, Injury Severity Score, Glasgow Coma Score, admission diagnosis, mechanism of injury, admission service, and comorbidities. Efficiency included intensive care unit length of stay (ICU-LOS) and hospital length of stay (H-LOS). Outcomes included complications, discharge disposition, and mortality. Statistical analysis included Chi square, Fisher's exact test, and regression analyses, significance denoted by P VETs were investigated. Demographic analysis revealed differences in Injury Severity Score (9.4 + 5.4 vs 7.2 + 4.0, P VETs admitted to the trauma service increased from 28.3 per cent to 40.5 per cent, P = 0.02. Efficiency analysis revealed differences in ICU-LOS (4.0 + 4.2 days vs 0.7 + 1.3 days, P VETs led to improved hospital efficiency. PMID:27305879

  20. 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.

  1. Evaluating Higher Education Policy in Turkey: Assessment of the Admission Procedure to Architecture, Planning and Engineering Schools

    OpenAIRE

    Kemal Mert Cubukcu; Ebru Cubukcu

    2009-01-01

    The admission procedure to higher education institutions in Turkey is based on the student’s high school grades and Central University Entrance Examination (CUEE) score, with a much greater weight on the latter. However, whether the CUEE is an appropriate measure in the admission process to universities is still a much-debated question. This study assesses the validity of the CUEE as a selection tool for design-based departments by examining the relationship between CUEE scores and success in...

  2. 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...

  3. 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.

  4. 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.

  5. Control Structures and Payout Policy

    NARCIS (Netherlands)

    Renneboog, L.D.R.; Trojanowski, G.

    2005-01-01

    This paper examines the payout policies of UK firms listed on the London Stock Exchange during the 1990s.It complements the existing literature by analyzing the trends in both dividends and total payouts (including share repurchases).In a dynamic panel data regression setting, we relate target payou

  6. A framework of call admission control procedures for integrated services mobile wireless networks

    International Nuclear Information System (INIS)

    This paper presents a general framework for a wide range of call admission control (CAC) algorithms. For several CAC schemes, which are a subset of this general framework, an analytical performance evaluation is presented for a multi-traffic mobile wireless network. These CAC algorithms consider a variety of mechanisms to prioritize traffic in an attempt to support different levels of quality of service (QoS) for different types of calls. These mechanisms include dividing the handoff traffic into more than one class and using guard channels or allowing channel splitting to admit more handoff calls. Other mechanisms aimed at adding priority for handoff calls consider employing queuing of handoff calls or dynamically reducing the number lower priority calls. Furthermore our analysis relaxes the typically used assumptions of equal channel holding time and equal resource usage for voice and data calls. The main contribution of this paper is the development of an analytical model for each of the three CAC algorithms specified in this study. In addition to the call blocking and termination probabilities which are usually cited as the performance metrics, in this work we derive and evaluate other metrics that not have be considered by the previous work such as the average queue length, the average queue residency, and the time-out probability for handoff calls. We also develop a simulation tool to test and verify our results. Finally, we present numerical examples to demonstrate the performance of the proposed CAG algorithms and we show that analytical and simulation results are in total agreement. (author)

  7. Evaluating Higher Education Policy in Turkey: Assessment of the Admission Procedure to Architecture, Planning and Engineering Schools

    Directory of Open Access Journals (Sweden)

    Kemal Mert Cubukcu

    2009-04-01

    Full Text Available The admission procedure to higher education institutions in Turkey is based on the student’s high school grades and Central University Entrance Examination (CUEE score, with a much greater weight on the latter. However, whether the CUEE is an appropriate measure in the admission process to universities is still a much-debated question. This study assesses the validity of the CUEE as a selection tool for design-based departments by examining the relationship between CUEE scores and success in university education in two design-based departments, architecture and city planning. The analysis is then extended to test the relationship in three engineering departments, computer engineering, civil engineering, and mechanical engineering. Based on the bivariate correlation and one sample t-test result, we report that CUEE scores and graduation grades have no relationship at all. We conclude that the current admission procedure to design-based schools based on solely a central examination score is not preferable.

  8. Time from admission to initiation of surgery for source control is a critical determinant of survival in patients with gastrointestinal perforation with associated septic shock

    OpenAIRE

    Azuhata, Takeo; Kinoshita, Kosaku; Kawano, Daisuke; Komatsu, Tomonori; Sakurai, Atsushi; Chiba, Yasutaka; Tanjho, Katsuhisa

    2014-01-01

    Introduction We developed a protocol to initiate surgical source control immediately after admission (early source control) and perform initial resuscitation using early goal-directed therapy (EGDT) for gastrointestinal (GI) perforation with associated septic shock. This study evaluated the relationship between the time from admission to initiation of surgery and the outcome of the protocol. Methods This examination is a prospective observational study and involved 154 patients of GI perforat...

  9. Gun Control: The Debate and Public Policy.

    Science.gov (United States)

    Watkins, Christine

    1997-01-01

    Provides an overview and background information on the debate over gun control, as well as several teaching ideas. Handouts include a list of related topics drawn from various disciplines (economics, U.S. history), seven arguments for and against gun control, and a set of policy evaluation guidelines. (MJP)

  10. A connection-level call admission control using genetic algorithm for MultiClass multimedia services in wireless networks

    OpenAIRE

    Hong, X.; Xiao, Y; Ni, Q

    2006-01-01

    Call admission control in a wireless cell in a personal communication system (PCS) can be modeled as an M/M/C/C queuing system with m classes of users. Semi-Markov Decision Process (SMDP) can be used to optimize channel utilization with upper bounds on handoff blocking probabilities as Quality of Service constraints. However, this method is too time-consuming and therefore it fails when state space and action space are large. In this paper, we apply a genetic algorithm approach to address the...

  11. 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.

  12. 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...

  13. 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.

  14. Risk Management Policies for Dynamic Capacity Control

    OpenAIRE

    Koenig, M.; Meissner, J.

    2009-01-01

    Consider a dynamic decision making model under risk with a fixed planning horizon, namely the dynamic capacity control model. The model describes a firm, operating in a monopolistic setting and selling a range of products consuming a single resource. Demand for each product is time-dependent and modeled by a random variable. The firm controls the revenue stream by allowing or denying customer requests for product classes. We investigate risk-sensitive policies in this setting, for which risk ...

  15. Analysis and Comparison of Access Control Policies Validation Mechanisms

    OpenAIRE

    Muhammad Aqib; Riaz Ahmed Shaikh

    2014-01-01

    Validation and verification of security policies is a critical and important task to ensure that access control policies are error free. The two most common problems present in access control policies are: inconsistencies and incompleteness. In order to detect such problems, various access control policy validation mechanisms are proposed by the researchers. However, comprehensive analysis and evaluation of the existing access control policy validation techniques is missing in the literature....

  16. An experimental study on load-peak shaving in smart homes by means of online admission control

    DEFF Research Database (Denmark)

    Costanzo, Giuseppe Tommaso; Kosek, Anna Magdalena; Zhu, Guchuan;

    2012-01-01

    This paper presents the design, implementation, and experimental results of an architecture for autonomous demand-side load management (ADSM) system for Smart Buildings in view of influencing the energy demand in the Smart Grid. In such an architecture, the management system has a layered structure...... and appliances' operation is modeled as a finite state machine, which enables an efficient load control using scheduling techniques borrowed from real-time computing systems. In this study the Admission Control, which is the bottom layer of the presented architecture interacting in real-time with...... physical equipments, is addressed and the real-time power consumption management in a residential dwelling is implemented and tested in a real office building. The experimental results provide a proof of concept for the proposed architecture and demonstrate the applicability of the on-line scheduling...

  17. Civil Rights and the Changing Admissions Policy at a Mid-Western University: The Impact of Two Cases

    Science.gov (United States)

    Bayar, Adem; Kerns, James H.

    2013-01-01

    Due to the value of personal rights and freedoms, along with the associated questions and continuing problems, the issue of "civil rights" continues to be relevant in the twenty-first century. In the United States, the civil rights of disenfranchised people are adversely affected by various social, regional, and federal policies.…

  18. POLLUTION CONTROL POLICIES FOR AUSTRALIAN PRAWN FARMS

    OpenAIRE

    Brennan, Donna C.

    1999-01-01

    The environmental consequences of shrimp farming in Asia have caused widespread public concern. One of the main environmental impacts is the high nutrient load that is discharged from ponds, as part of the management routine aimed at maintaining pond water quality. In Australia, where there is a high level of community awareness of the problems associated with eutrophication, the Environmental Protection Agencies are faced with the difficult task of determining effluent control policies for t...

  19. Air pollution control policy in Switzerland

    International Nuclear Information System (INIS)

    There are a lot of reasons why emissions of air pollutants have to be reduced. Acid deposition and its consequences are among them, but they are not the only ones. This paper presents the comprehensive legal basis of air pollution control policy in Switzerland as well as the overall air pollution control strategy. The present situation with respect to air pollution is discussed. A list of implemented and planned measures is given as well as emission trends of major air pollutants from 1950 to 2010. 6 refs., 1 fig

  20. Tobacco control in Europe: a policy review.

    Science.gov (United States)

    Bertollini, Roberto; Ribeiro, Sofia; Mauer-Stender, Kristina; Galea, Gauden

    2016-06-01

    Tobacco is responsible for the death of 6 million people every year globally, of whom 700 000 are in Europe. Effective policies for tobacco control exist; however, the status of their implementation varies across the World Health Organization (WHO) European Region. In order to tackle the tobacco epidemic, action has been taken though the implementation of both legally binding and non-legally binding measures. This article aims to present the achievements and challenges of tobacco control in Europe, focussing on the available legally binding instruments such as the WHO Framework Convention on Tobacco Control and the revision of the Tobacco Products Directive at the European Union level. Tobacco still faces heavy lobbying of the tobacco industry, which has systematically contrasted policies to achieve public health objectives. The legal instruments for tobacco control in Europe presented here are not always adequately enforced in all the countries and there is certainly room for improving their implementation. Finally, the need for a strong political commitment towards the end-game of the tobacco epidemic is emphasised. PMID:27246592

  1. 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.

  2. Design and evaluation of admission control policies in mobile cellular networks

    OpenAIRE

    BERNAL MOR, ELENA

    2013-01-01

    Durante los últimos años las redes móviles celulares han experimentado un considerable crecimiento y desarrollo debido al nuevo modo en que la sociedad crea, comparte y consume información. El enorme impacto y penetración de los servicios móviles telefónicos en la sociedad actual, así como la introducción de un amplio abanico de nuevos servicios de datos y servicios multimedia, han llevado a un crecimiento espectacular del volumen de tráfico transportado por este tipo de redes....

  3. 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.

  4. 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

    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...

  5. 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...

  6. 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.

  7. Tobacco control in the Russian Federation- a policy analysis

    OpenAIRE

    Lunze, Karsten; Migliorini, Luigi

    2013-01-01

    Background The Russian Federation (Russia) has one of the highest smoking rates in the world. The purpose of this study is to analyze past and current trends of the tobacco epidemic in the Russian Federation, review current tobacco control policy responses, and identify areas of opportunity for policy priorities. Methods We used a policy triangle as analytical framework to examine content, context, and processes of Russian tobacco control policy. The analysis was based on secondary data on su...

  8. Tobacco Control Policies, Birth Outcomes, and Maternal Human Capital

    OpenAIRE

    Sara Markowitz; Kathleen Adams, E; Dietz, Patricia M.; Viji Kannan; Tong, Van T.

    2013-01-01

    Smoking during pregnancy can have significant adverse health effects for babies, yet many women smoke during pregnancy. In this paper, we examine whether state tobacco control policies lead to improved birth outcomes and to what extent the success of these policies depends on accumulated maternal human capital. We use data from the Pregnancy Risk Assessment Monitoring System in a time period when states significantly changed their tobacco control policies. Results show that the smoking polici...

  9. Mining Attribute-Based Access Control Policies from Logs

    OpenAIRE

    Xu, Zhongyuan; Stoller, Scott,

    2014-01-01

    Attribute-based access control (ABAC) provides a high level of flexibility that promotes security and information sharing. ABAC policy mining algorithms have potential to significantly reduce the cost of migration to ABAC, by partially automating the development of an ABAC policy from information about the existing access-control policy and attribute data. This paper presents an algorithm for mining ABAC policies from operation logs and attribute data. To the best of our knowledge, it is the ...

  10. Analysis and Comparison of Access Control Policies Validation Mechanisms

    Directory of Open Access Journals (Sweden)

    Muhammad Aqib

    2014-12-01

    Full Text Available Validation and verification of security policies is a critical and important task to ensure that access control policies are error free. The two most common problems present in access control policies are: inconsistencies and incompleteness. In order to detect such problems, various access control policy validation mechanisms are proposed by the researchers. However, comprehensive analysis and evaluation of the existing access control policy validation techniques is missing in the literature. In this paper, we have provided a first detailed survey of this domain and presented the taxonomy of the access control policy validation mechanisms. Furthermore, we have provided a qualitative comparison and trend analysis of the existing schemes. From this survey, we found that only few validation mechanisms exist that can handle both inconsistency and incompleteness problem. Also, most of the policy validation techniques are inefficient in handling continuous values and Boolean expressions.

  11. 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)

  12. 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...

  13. 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...

  14. 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

  15. Policy means of control in the climate policy

    International Nuclear Information System (INIS)

    Using the MARKAL simulation tool, different economic incentives in climate mitigation policy such as tradable emission permits, green certificates and carbon dioxide taxes have been analyzed. The analysis shows that there is an important advantage in applying the emission reductions internationally compared to a national policy, due to the varying marginal costs for the measures in different countries. The analysis also reveals at which price levels the Nordic countries as a whole become net sellers or net buyers of emission permits. The effects of combining emission permits with green certificates are analyzed, e.g. the inverse relation between permit and certificate prices. An appendix to the report gives a description of the Swedish energy system, emissions world-wide and examples of cost-effective mitigation measures for Sweden

  16. Quality of service policy control in virtual private networks

    Science.gov (United States)

    Yu, Yiqing; Wang, Hongbin; Zhou, Zhi; Zhou, Dongru

    2004-04-01

    This paper studies the QoS of VPN in an environment where the public network prices connection-oriented services based on source, destination and grade of service, and advertises these prices to its VPN customers (users). As different QoS technologies can produce different QoS, there are according different traffic classification rules and priority rules. The internet service provider (ISP) may need to build complex mechanisms separately for each node. In order to reduce the burden of network configuration, we need to design policy control technologies. We considers mainly directory server, policy server, policy manager and policy enforcers. Policy decision point (PDP) decide its control according to policy rules. In network, policy enforce point (PEP) decide its network controlled unit. For InterServ and DiffServ, we will adopt different policy control methods as following: (1) In InterServ, traffic uses resource reservation protocol (RSVP) to guarantee the network resource. (2) In DiffServ, policy server controls the DiffServ code points and per hop behavior (PHB), its PDP distributes information to each network node. Policy server will function as following: information searching; decision mechanism; decision delivering; auto-configuration. In order to prove the effectiveness of QoS policy control, we make the corrective simulation.

  17. 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.

  18. Air pollution control policy in Switzerland

    Energy Technology Data Exchange (ETDEWEB)

    Leutert, G. [Forests and Landscape, Berne (Switzerland). Federal Office of Environment

    1995-12-31

    The legal basis of the Swiss air pollution control policy is set by the Federal Law on the Protection of the Environment, which came into force in 1985. It aims to protect human beings, animals and plants, their biological communities and habitats against harmful effects or nuisances and to maintain the fertility of the soil. The law is source-oriented (by emission standards) as well as effect-oriented (by ambient air quality standards). To link both elements a two-stage approach is applied. In the first stage preventive measures are taken at the emitting sources, irrespective of existing air pollution levels. Emissions have to be limited by early preventive measures as much as technical and operational conditions allow and as far as economically acceptable (prevention principle). By this, air pollution shall be kept as low as possible as a matter of principle, without the environment having to be in danger first. In a second stage the measures are strengthened or backed up by additional measures if ambient air quality standards laid down in the Ordinance on Air Pollution Control are exceeded. At this second stage, protection of man and his environment has priority over economic considerations. (author)

  19. Analysis of Quality of Service Performances of Connection Admission Control Mechanisms in OFDMA IEEE 802.16 Network using BMAP Queuing

    CERN Document Server

    Bouchti, Abdelali El; Kafhali, Said El

    2012-01-01

    In this paper, we consider a single-cell IEEE 802.16 environment in which the base station allocates subchannels to the subscriber stations in its coverage area. The subchannels allocated to a subscriber station are shared by multiple connections at that subscriber station. To ensure the Quality of Service (QoS) performances, two Connection Admission Control (CAC) mechanisms, namely, threshold-based and queue-aware CAC mechanisms are considered at a subscriber station. A queuing analytical framework for these admission control mechanisms is presented considering Orthogonal Frequency Division Multiple Access (OFDMA) based transmission at the physical layer. Then, based on the queuing model, both the connection-level and the packet-level performances are studied and compared with their analogues in the case without CAC. The connection arrival is modeled by a Poisson process and the packet arrival for a connection by Batch Markov Arrival Process (BMAP). We determine analytically and numerically different QoS per...

  20. 38 CFR 18.442 - Admissions and recruitment.

    Science.gov (United States)

    2010-07-01

    ... recruitment. 18.442 Section 18.442 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Postsecondary Education § 18.442 Admissions and recruitment. (a) General. Qualified handicapped persons may not... recruitment by a recipient. (b) Admission. In administering its admission policies, a recipient; (1) May...

  1. Determinants of parental support for governmental alcohol control policies

    NARCIS (Netherlands)

    Hoof, van Joris J.; Gosselt, Jordy F.; Jong, de Menno D.T.

    2010-01-01

    Aim: To explore determinants that predict parental support for governmental alcohol control policies in the Netherlands. Method: A questionnaire was administered among 1550 parents, containing six possible predictors to explain support for alcohol control policies. Results: Parental support can be e

  2. Joint Determination of Optimal Inventory and Quality Control Policy

    OpenAIRE

    Michael H. Peters; Helmut Schneider; Kwei Tang

    1988-01-01

    Typically the operating policy for the inventory control system for a commodity is developed independent of the operating policy for the quality control system for that commodity and vice versa. In many circumstances, these systems are dependent on one another. A cost model that combines a fixed order quantity inventory control system with a Bayesian quality control system for a lot-by-lot attribute acceptance sampling plan is presented along with an algorithm to obtain the operating paramete...

  3. 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...

  4. 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...

  5. Automated system for individual control for admission of staff in the controlled zones of the Kozloduy NPP

    International Nuclear Information System (INIS)

    The development of the system leads to the following: automated registering of the staff in the personnel database; real time reading of the personal dosimeters; real time reading of the collective dose; the control over the working people (especially external) concerning the dose limits or restrictions are performed in real time

  6. China's Total Emission Control Policy: a Critical Review

    Institute of Scientific and Technical Information of China (English)

    Ge Chazhong; Chen Ji; Wang Jinnan; Long Feng

    2009-01-01

    As part of a comprehensive environmental management system, many countries establish emission control targets for mass emissions of a pollutant.Such targets are often the key objective of an environmental policy, such as an emission trading program.In China, however, it is more than just an objective of one particular policy; it has become a concept that has influenced many national environmental policies and activities.The objective of this article is to review the implementation of the total emission control policy in the past 10 years and explore emerging issues in its implementa-tion.The article has three sections: a summary of the implementa-tion experience, issues with the design and implementation of the policy, and policy recommendations.

  7. Influence of the Tobacco Industry on Wisconsin Tobacco Control Policies

    OpenAIRE

    University of Wisconsin Comprehensive Cancer Center

    2002-01-01

    The purpose of this report by the Monitoring and Evaluation Program of the University of Wisconsin Comprehensive Cancer Center is to assist policy makers and tobacco control advocates in understanding the role of the tobacco industry in forming state and local policies on tobacco in Wisconsin. These activities in policy-making play an integral role in the level of tobacco use in the state. The late John Slade formulated a public health model of tobacco addiction where the agent (of the diseas...

  8. Comparative analysis of alcohol control policies in 30 countries.

    OpenAIRE

    BRAND Donald A.; Michaela Saisana; RYNN Lisa A.; Fulvia Pennoni; Lowenfels, Albert B.

    2007-01-01

    BACKGROUND: Alcohol consumption causes an estimated 4% of the global disease burden, prompting governments to impose regulations to mitigate the adverse effects of alcohol. To assist public health leaders and policymakers, the authors developed a composite indicator-the Alcohol Policy Index-to gauge the strength of a country's alcohol control policies. METHODS AND FINDINGS: The Index generates a score based on policies from five regulatory domains-physical availability of alcohol, drinking co...

  9. Comparative Analysis of Alcohol Control Policies in 30 Countries

    OpenAIRE

    BRAND Donald A.; SAISANA MICHAELA; RYNN Lisa A.; Pennoni, Fulvia; Lowenfels, Albert B.

    2007-01-01

    BACKGROUND. Alcohol consumption causes an estimated 4% of the global disease burden, prompting governments to impose regulations to mitigate the adverse effects of alcohol. To assist public health leaders and policymakers, we developed a composite indicator¿the Alcohol Policy Index¿to gauge the strength of a country's alcohol control policies. METHODOLOGY/PRINCIPAL FINDINGS. The Index generates a score based on policies from 5 regulatory domains¿physical availability of alcohol, drinkin...

  10. Alcohol Control Policies and Motor Vehicle Fatalities

    OpenAIRE

    Chaloupka, Frank J.; Henry Saffer; Michael Grossman

    1991-01-01

    The purpose of this study is to estimate the effects of drunk driving deterrents and other alcohol related policies on drunk driving. The data set employed is an annual time-series of state cross-sections for the 48 contiguous states of the U.S. from 1982 through 1988. Total and alterative alcohol involved motor vehicle fatality rates, for the general population and for 18 to 20 year olds, are used as measures of drunk driving. The results indicate that the moat effective policies are increas...

  11. Politics of Evaluation: The Competition for Control of Educational Policy.

    Science.gov (United States)

    Marshall, Catherine

    1985-01-01

    This case study of the Early Childhood Education Program (California) focuses on the political meaning of evaluation. It shows how analysis of evaluation politics reveals who controls education policy, which values are prevailing and dominant, and which definitions of policy goals constitute the assumptive world. (RDN)

  12. Phase and gain control policies for robust active vibration control of flexible structures

    OpenAIRE

    Zhang, Kai; Scorletti, Gérard; Ichchou, Mohamed; Mieyeville, F.

    2013-01-01

    The interest of this paper is to develop a general and systematic robust control methodology for active vibration control of flexible structures. For this purpose, first phase and gain control policies are proposed to impose qualitative frequency-dependent requirements on the controller to consider a complete set of control objectives. Then the proposed control methodology is developed by employing phase and gain control policies in the dynamic output feedback H∞ control: according to the set...

  13. Effect of artemether-lumefantrine policy and improved vector control on malaria burden in KwaZulu-Natal, South Africa.

    Directory of Open Access Journals (Sweden)

    Karen I Barnes

    2005-11-01

    Full Text Available BACKGROUND: Between 1995 and 2000, KwaZulu-Natal province, South Africa, experienced a marked increase in Plasmodium falciparum malaria, fuelled by pyrethroid and sulfadoxine-pyrimethamine resistance. In response, vector control was strengthened and artemether-lumefantrine (AL was deployed in the first Ministry of Health artemisinin-based combination treatment policy in Africa. In South Africa, effective vector and parasite control had historically ensured low-intensity malaria transmission. Malaria is diagnosed definitively and treatment is provided free of charge in reasonably accessible public-sector health-care facilities. METHODS AND FINDINGS: We reviewed four years of malaria morbidity and mortality data at four sentinel health-care facilities within KwaZulu-Natal's malaria-endemic area. In the year following improved vector control and implementation of AL treatment, malaria-related admissions and deaths both declined by 89%, and outpatient visits decreased by 85% at the sentinel facilities. By 2003, malaria-related outpatient cases and admissions had fallen by 99%, and malaria-related deaths had decreased by 97%. There was a concomitant marked and sustained decline in notified malaria throughout the province. No serious adverse events were associated causally with AL treatment in an active sentinel pharmacovigilance survey. In a prospective study with 42 d follow up, AL cured 97/98 (99% and prevented gametocyte developing in all patients. Consistent with the findings of focus group discussions, a household survey found self-reported adherence to the six-dose AL regimen was 96%. CONCLUSION: Together with concurrent strengthening of vector control measures, the antimalarial treatment policy change to AL in KwaZulu-Natal contributed to a marked and sustained decrease in malaria cases, admissions, and deaths, by greatly improving clinical and parasitological cure rates and reducing gametocyte carriage.

  14. Military Line Leadership and Tobacco Control: Perspectives of Military Policy Leaders and Tobacco Control Managers

    OpenAIRE

    Poston, Walker S. C.; Suminski, Richard R.; Hoffman, Kevin M.; Jitnarin, Nattinee; Hughey, Joseph; Lando, Harry A; Winsby, Amelia; Haddock, Keith

    2010-01-01

    Despite progress in policy changes, tobacco use rates are still high in the military. Little is known about the views of those who create and implement tobacco control policies within the Department of Defense. These individuals determine what policy initiatives will be developed, prioritized, and implemented. We conducted key informant interviews with 16 service-level policy leaders (PLs) and 36 installation-level tobacco control managers (TCMs). PLs and TCMs believed that line leadership vi...

  15. A supervisory control policy over an acoustic communication network

    OpenAIRE

    Farhadi, Alireza; Dumon, Jonathan; Canudas-De-Wit, Carlos

    2014-01-01

    International audience This paper presents a supervisory multi-agent control policy over an acoustic communication network subject to imperfections (packet dropout and transmission delay) for localization of an underwater flow source (e.g., source of chemical pollution, fresh water, etc.) with an unknown location at the bottom of the ocean. A two-loop control policy combined with a coding strategy for reliable communication is presented to perform the above task. A simulator is developed a...

  16. Enhancing supply chain performance with improved order-control policies

    Science.gov (United States)

    Nilakantan, K.

    2010-09-01

    This article takes up the study of the dynamics of a single product in a prototype three-stage supply chain system, at the downstream warehouse end of the chain, under a responsive chain strategy. The dynamics under various ordering policies and the parameters which will yield desired responses are systematically analysed, both for deterministic and stochastic systems. Higher-order control policies are then proposed and analysed. The considered key performance criteria are the permanent inventory deviations from the desired levels, or the offset, the maximum dip in inventory, the 'undershoot', the damping effect and decay rates, and the duration of time in the negative region, for deterministic systems; and additionally, the inventory variance for stochastic systems. It is shown that the disadvantages of the conventional (proportional-integral-derivative) control policies, like large negative deviations, low decay rates, and high inventory variance, can be overcome by the use of higher-order control policies proposed herein.

  17. Adaptive Control with Approximated Policy Search Approach

    Directory of Open Access Journals (Sweden)

    Agus Naba

    2010-05-01

    Full Text Available Most of existing adaptive control schemes are designed to minimize error between plant state and goal state despite the fact that executing actions that are predicted to result in smaller errors only can mislead to non-goal states. We develop an adaptive control scheme that involves manipulating a controller of a general type to improve its performance as measured by an evaluation function. The developed method is closely related to a theory of Reinforcement Learning (RL but imposes a practical assumption made for faster learning. We assume that a value function of RL can be approximated by a function of Euclidean distance from a goal state and an action executed at the state. And, we propose to use it for the gradient search as an evaluation function. Simulation results provided through application of the proposed scheme to a pole-balancing problem using a linear state feedback controller and fuzzy controller verify the scheme’s efficacy.

  18. 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.

  19. 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.

  20. Analysis of Access Control Policies in Operating Systems

    Science.gov (United States)

    Chen, Hong

    2009-01-01

    Operating systems rely heavily on access control mechanisms to achieve security goals and defend against remote and local attacks. The complexities of modern access control mechanisms and the scale of policy configurations are often overwhelming to system administrators and software developers. Therefore, mis-configurations are common, and the…

  1. Beyond Declines in Student Body Diversity: How Campus-Level Administrators Understand a Prohibition on Race-Conscious Postsecondary Admissions Policies

    Science.gov (United States)

    Garces, Liliana M.; Cogburn, Courtney D.

    2015-01-01

    Guided by a bottom-up policy implementation framework, this study draws from semi-structured interviews of 14 campus-level administrators charged with implementing diversity policy at the University of Michigan to investigate how an affirmative action ban (Proposal 2) influenced their efforts in support of racial/ethnic diversity at the…

  2. A model to reduce complexity and maintain coherence between Access Control and Transmission Control policies

    OpenAIRE

    Bertrand, Yoann; Blay-Fornarino, Mireille; Boudaoud, Karima; Riveill, Michel

    2016-01-01

    In order to protect resources from unauthorized access and data leakage in companies, security experts and administrators can use mechanisms such as Access Control (AC) and Transmission Control (TC). Both AC and TC are based on policies that are defined, modified and revoked by these experts. However, policy management can be a time-consuming and tiresome task, especially when both mechanisms are used on large sets of users and resources. Moreover, contradictions between AC and TC policies ca...

  3. Ancillary effects of selected acid deposition control policies

    Energy Technology Data Exchange (ETDEWEB)

    Moe, R.J.; Lyke, A.J.; Nesse, R.J.

    1986-08-01

    NAPAP is examining a number of potential ways to reduce the precursors (sulfur dioxide and nitrogen oxides) to acid deposition. However, the policies to reduce acid deposition will have other physical, biological and economic effects unrelated to acid deposition. For example, control policies that reduce sulfur dioxide emissions may also increase visibility. The effects of an acid deposition policy that are unrelated to acid deposition are referred to as ''ancillary'' effects. This reserch identifies and characterizes the principle physical and economic ancillary effects associated with acid deposition control and mitigation policies. In this study the ancillary benefits associated with four specific acid deposition policy options were investigated. The four policy options investigated are: (1) flue gas desulfurization, (2) coal blending or switching, (3) reductions in automobile emissions of NO/sub x/, and (4) lake liming. Potential ancillary benefits of each option were identified and characterized. Particular attention was paid to the literature on economic valuation of potential ancillary effects.

  4. A Stunning Admission

    Science.gov (United States)

    Hu, Helen

    2012-01-01

    Few people set out to become admissions counselors, say people in the profession. But the field is requiring skills that are more demanding and varied than ever. And at a time when universities are looking especially hard at the bottom line, people in admissions need to constantly learn new things and make themselves indispensable. Counselors…

  5. Comparative analysis of alcohol control policies in 30 countries.

    Directory of Open Access Journals (Sweden)

    Donald A Brand

    2007-04-01

    Full Text Available BACKGROUND: Alcohol consumption causes an estimated 4% of the global disease burden, prompting governments to impose regulations to mitigate the adverse effects of alcohol. To assist public health leaders and policymakers, the authors developed a composite indicator-the Alcohol Policy Index-to gauge the strength of a country's alcohol control policies. METHODS AND FINDINGS: The Index generates a score based on policies from five regulatory domains-physical availability of alcohol, drinking context, alcohol prices, alcohol advertising, and operation of motor vehicles. The Index was applied to the 30 countries that compose the Organization for Economic Cooperation and Development and regression analysis was used to examine the relationship between policy score and per capita alcohol consumption. Countries attained a median score of 42.4 of a possible 100 points, ranging from 14.5 (Luxembourg to 67.3 (Norway. The analysis revealed a strong negative correlation between score and consumption (r = -0.57; p = 0.001: a 10-point increase in the score was associated with a one-liter decrease in absolute alcohol consumption per person per year (95% confidence interval, 0.4-1.5 l. A sensitivity analysis demonstrated the robustness of the Index by showing that countries' scores and ranks remained relatively stable in response to variations in methodological assumptions. CONCLUSIONS: The strength of alcohol control policies, as estimated by the Alcohol Policy Index, varied widely among 30 countries located in Europe, Asia, North America, and Australia. The study revealed a clear inverse relationship between policy strength and alcohol consumption. The Index provides a straightforward tool for facilitating international comparisons. In addition, it can help policymakers review and strengthen existing regulations aimed at minimizing alcohol-related harm and estimate the likely impact of policy changes.

  6. Indeterminate EMU admissions: does repeating the admission help?

    Science.gov (United States)

    Zarkou, Srijana; Grade, Madeline; Hoerth, Matthew T; Noe, Katherine H; Sirven, Joseph I; Drazkowski, Joseph F

    2011-04-01

    Epilepsy monitoring unit (EMU) admissions during 2007-2009 at Mayo Clinic Hospital Arizona were reviewed. Of the 106 indeterminate admissions, 13 (12%) went on to have a second admission. During the second admission, 8 (62%) were diagnosed. Five patients went on to have a third or fourth admission, with none of them receiving a diagnosis. Nineteen (18%) patients had ambulatory EEG monitoring after an indeterminate admission, with only one (5%) receiving a diagnosis after ambulatory EEG monitoring. Even in patients who were initially indeterminate, medication management changed 37% of the time. Admission to the EMU was helpful for spell classification, with 80% of the patients receiving a diagnosis after the first admission. Based on this study, a second admission should be considered if no diagnosis is reached after the first admission. If no diagnosis is made after the second EMU admission, subsequent admissions are unlikely to produce a definitive diagnosis. PMID:21441070

  7. A supervisory control policy over an acoustic communication network

    Science.gov (United States)

    Farhadi, Alireza; Dumon, Jonathan; Canudas-de-Wit, Carlos

    2015-05-01

    This paper presents a supervisory multi-agent control policy over an acoustic communication network subject to imperfections (packet dropout and transmission delay) for localisation of an underwater flow source (e.g., source of chemical pollution, fresh water, etc.) with an unknown location at the bottom of the ocean. A two-loop control policy combined with a coding strategy for reliable communication is presented to perform the above task. A simulator is developed and used to evaluate the trade-offs between quality of communication, transmission delay and control for a fleet of autonomous underwater vehicles supervised over a noisy acoustic communication network by an autonomous surface vessel. It is illustrated that without compensation of the effects of severe random packet dropout, localisation of an unknown underwater flow source is not possible for the condition simulated just by implementing a two-loop control policy. But a two-loop control policy combined with a strategy for reliable communication locates the unknown location of flow source.

  8. Smoking inequalities and tobacco control policies in Europe

    NARCIS (Netherlands)

    M.A.G. Kuipers

    2016-01-01

    Smoking is the worlds’ leading avoidable cause of mortality and kills 6 million people each year. Individuals of lower socioeconomic status are more likely to initiate smoking and less likely to quit smoking. Tobacco control policies have been implemented in the last decades, but although smoking pr

  9. 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

  10. Impact of Scheduling Policies on Control System Performance

    DEFF Research Database (Denmark)

    Schiøler, Henrik; Ravn, Anders Peter; Nielsen, Jens Frederik Dalsgaard

    It is well known that jitter has an impact on control system performance, and this is often used as an argument for static scheduling policies, e.g. a time triggered architecture. However, it is only completion jitter that seriously disturbs standard linear control algorithms in a way similar to...... the delay inherent in a time triggered architecture. Thus we propose that standard control algorithms are scheduled dynamically, but without preemption. Analysis of this policy is contrasted with a corresponding time triggered architecture and is shown to have better impulse response performance both...... in the deterministic case and under white noise disturbances. The conclusion is that under very reasonable assumptions about robustness of control algorithms,they are insensitive to relase jitter, albeit strongly sensitive to completion jitter, thus priority based scheduling without preemption is may...

  11. Impact of Scheduling Policies on Control System Performance

    DEFF Research Database (Denmark)

    Schiøler, Henrik; Ravn, Anders Peter; Nielsen, Jens Frederik Dalsgaard

    2003-01-01

    It is well known that jitter has an impact on control system performance, and this is often used as an argument for static scheduling policies, e.g. a time triggered architecture. However, it is only completion jitter that seriously disturbs standard linear control algorithms in a way similar to...... the delay inherent in a time triggered architecture. Thus we propose that standard control algorithms are scheduled dynamically, but without preemption. Analysis of this policy is contrasted with a corresponding time triggered architecture and is shown to have better impulse response performance both...... in the deterministic case and under white noise disturbances. The conclusion is that under very reasonable assumptions about robustness of control algorithms,they are insensitive to relase jitter, albeit strongly sensitive to completion jitter, thus priority based scheduling without preemption is may...

  12. Off-policy reinforcement learning for H∞ control design.

    Science.gov (United States)

    Luo, Biao; Wu, Huai-Ning; Huang, Tingwen

    2015-01-01

    The H∞ control design problem is considered for nonlinear systems with unknown internal system model. It is known that the nonlinear H∞ control problem can be transformed into solving the so-called Hamilton-Jacobi-Isaacs (HJI) equation, which is a nonlinear partial differential equation that is generally impossible to be solved analytically. Even worse, model-based approaches cannot be used for approximately solving HJI equation, when the accurate system model is unavailable or costly to obtain in practice. To overcome these difficulties, an off-policy reinforcement leaning (RL) method is introduced to learn the solution of HJI equation from real system data instead of mathematical system model, and its convergence is proved. In the off-policy RL method, the system data can be generated with arbitrary policies rather than the evaluating policy, which is extremely important and promising for practical systems. For implementation purpose, a neural network (NN)-based actor-critic structure is employed and a least-square NN weight update algorithm is derived based on the method of weighted residuals. Finally, the developed NN-based off-policy RL method is tested on a linear F16 aircraft plant, and further applied to a rotational/translational actuator system. PMID:25532162

  13. Autonomous underwater vehicle control using reinforcement learning policy search methods

    OpenAIRE

    El-Fakdi Sencianes, Andrés; Carreras Pérez, Marc; Palomeras Rovira, Narcís; Ridao Rodríguez, Pere

    2005-01-01

    Autonomous underwater vehicles (AUV) represent a challenging control problem with complex, noisy, dynamics. Nowadays, not only the continuous scientific advances in underwater robotics but the increasing number of subsea missions and its complexity ask for an automatization of submarine processes. This paper proposes a high-level control system for solving the action selection problem of an autonomous robot. The system is characterized by the use of reinforcement learning direct policy search...

  14. Infection control policies and guidelines--Scandinavian experience.

    Science.gov (United States)

    Nyström, B

    1991-06-01

    In the Scandinavian countries few regulations govern hospital infection control. In Sweden a common procedure manual is used nationwide, consisting of guidelines covering a wide range of nursing and medical procedures performed by the nursing staff. It is revised every fifth year. A recent enquiry to over 150 wards in some 100 hospitals demonstrated that the manual is widely accepted and used. In the other Scandinavian countries, guidelines and policies on a variety of infection control topics have been published. PMID:1679772

  15. Using policy management for optical VPN

    Science.gov (United States)

    Cherkaoui, Omar; Chen, Ken; Serhouchni, Ahmed

    2001-10-01

    This paper presents a Policy-based Control Plane, which allows Carrier Optical Network to dynamically configure and deploy Optical Virtual Private Networks (Optical VPNs) over multiple administration domains. A configurable policy-based control mechanism is required to regulate and control the information propagation across both UNI and NNI interfaces and the actions allowed on behalf of the users. The proposed framework extend the ITU Control Plane by adding based IP-centric policy mechanisms like admission control protocol COPS (Common Open Policy Service).

  16. 45 CFR 86.21 - Admission.

    Science.gov (United States)

    2010-10-01

    ... disabilities related to pregnancy, childbirth, termination of pregnancy, or recovery therefrom in the same manner and under the same policies as any other temporary disability or physical condition; and (4) Shall... 45 Public Welfare 1 2010-10-01 2010-10-01 false Admission. 86.21 Section 86.21 Public...

  17. 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)

  18. Policy Formulation, Implementation and Feedback in EU Merger Control

    OpenAIRE

    Eric J. Shea,; Chari, Raj S.

    2006-01-01

    This paper analyses the formulation of the EU Merger Control Regulation (MCR) and its implementation via the 1992 Nestlé/Perrier merger. It offers two arguments. First, these phases of policy development occurred in ‘macro’ and ‘micro’ policy communities found at the supranational level of governance. The first community consists of larger Commission and business interests that formulated the MCR and the second of specific actors within the ‘macro’ community - the Merger Task Force and the fi...

  19. The economics of alcohol abuse and alcohol-control policies.

    Science.gov (United States)

    Cook, Philip J; Moore, Michael J

    2002-01-01

    Economic research has contributed to the evaluation of alcohol policy through empirical analysis of the effects of alcohol-control measures on alcohol consumption and its consequences. It has also provided an accounting framework for defining and comparing costs and benefits of alcohol consumption and related policy interventions, including excise taxes. The most important finding from the economics literature is that consumers tend to drink less ethanol, and have fewer alcohol-related problems, when alcoholic beverage prices are increased or alcohol availability is restricted. That set of findings is relevant for policy purposes because alcohol abuse imposes large "external" costs on others. Important challenges remain, including developing a better understanding of the effects of drinking on labor-market productivity. PMID:11900152

  20. Phase and gain control policies for robust active vibration control of flexible structures

    International Nuclear Information System (INIS)

    The interest of this paper is to develop a general and systematic robust control methodology for active vibration control of flexible structures. For this purpose, first phase and gain control policies are proposed to impose qualitative frequency-dependent requirements on the controller to consider a complete set of control objectives. Then the proposed control methodology is developed by employing phase and gain control policies in the dynamic output feedback H∞ control: according to the set of control objectives, phase and gain control policies incorporate necessary weighting functions and determine them in a rational and systematic way; on the other hand, with the appropriate weighting functions efficient H∞ control algorithms can automatically realize phase and gain control policies and generate a satisfactory H∞ controller. The proposed control methodology can be used for both SISO and MIMO systems with collocated or non-collocated sensors and actuators. In this paper, it is validated on a non-collocated piezoelectric cantilever beam. Both numerical simulations and experimental results demonstrate the effectiveness of the proposed control methodology. (paper)

  1. Virtual Control Policy for Binary Ordered Resources Petri Net Class.

    Science.gov (United States)

    Rovetto, Carlos A; Concepción, Tomás J; Cano, Elia Esther

    2016-01-01

    Prevention and avoidance of deadlocks in sensor networks that use the wormhole routing algorithm is an active research domain. There are diverse control policies that will address this problem being our approach a new method. In this paper we present a virtual control policy for the new specialized Petri net subclass called Binary Ordered Resources Petri Net (BORPN). Essentially, it is an ordinary class constructed from various state machines that share unitary resources in a complex form, which allows branching and joining of processes. The reduced structure of this new class gives advantages that allow analysis of the entire system's behavior, which is a prohibitive task for large systems because of the complexity and routing algorithms. PMID:27548170

  2. Distributive Disturbance and Optimai Policy in Stochastic Control Model

    Institute of Scientific and Technical Information of China (English)

    Wang Hongchu; Hu Shigeng; Zhang Xueqing

    2006-01-01

    To investigate the equilibrium relationships between the volatility of capital and income, taxation, and macroeconomic performance in a stochastic control model, the uniqueness of the solution to this model was proved by using the method of dynamic programming under the introduction of distributive disturbance and elastic labor supply. Furthermore, the effects of two types of shocks on labor-leisure choice, economic growth rate and welfare were numerically analyzed, and then the optimal tax policy was derived.

  3. Control of mercury emissions: policies, technologies, and future trends

    OpenAIRE

    Rhee, Seung-Whee

    2015-01-01

    Seung-Whee Rhee Department of Environmental Engineering, Kyonggi University, Suwon, Republic of Korea Abstract: Owing to the Minamata Convention on Mercury and the Global Mercury Partnership, policies and regulations on mercury management in advanced countries were intensified by a mercury phaseout program in the mercury control strategy. In developing countries, the legislative or regulatory frameworks on mercury emissions are not established specifically, but mercury management is designed...

  4. Pollution Control Policies and Natural Resource Dynamics: A Theoretical Analysis

    OpenAIRE

    Rinaldi, S.; W.C. Sanderson; Gragnani, A.

    1995-01-01

    Policies for the management of natural resources and the resources themselves interact to form complex systems. In this paper, we present a highly simplified model that can be used to study the general features of those systems. The model has three state variables, the abundance of the resource, environmental pollution, and the capital devoted to pollution control. We analyze it graphically using the singular perturbation approach. Two modes of behavior are possible, stationary and cyclic. Wh...

  5. Maximally Stabilizing Task Release Control Policy for a Dynamical Queue

    OpenAIRE

    Savla, Ketan; Frazzoli, Emilio

    2009-01-01

    In this paper, we introduce a model of dynamical queue, in which the service time depends on the server utilization history. The proposed queueing model is motivated by widely accepted empirical laws describing human performance as a function of mental arousal. The objective of this paper is to design task release control policies that can stabilize the queue for the maximum possible arrival rate, assuming deterministic arrivals. First, we prove an upper bound on the maximum possible stabiliz...

  6. The control of environmental tobacco smoke: a policy review.

    LENUS (Irish Health Repository)

    McNabola, Aonghus

    2009-02-01

    According to World Health Organisation figures, 30% of all cancer deaths, 20% of all coronary heart diseases and strokes and 80% of all chronic obstructive pulmonary disease are caused by cigarette smoking. Environmental Tobacco Smoke (ETS) exposure has also been shown to be associated with disease and premature death in non-smokers. In response to this environmental health issue, several countries have brought about a smoking ban policy in public places and in the workplace. Countries such as the U.S., France, Italy, Ireland, Malta, the Netherlands, Sweden, Scotland, Spain, and England have all introduced policies aimed at reducing the population exposure to ETS. Several investigations have monitored the effectiveness of these smoking ban policies in terms of ETS concentrations, human health and smoking prevalence, while others have also investigated a number of alternatives to smoking ban policy measures. This paper reviews the state of the art in research, carried out in the field of ETS, smoking bans and Tobacco Control to date and highlights the need for future research in the area.

  7. The Control of Environmental Tobacco Smoke: A Policy Review

    Directory of Open Access Journals (Sweden)

    Laurence William Gill

    2009-02-01

    Full Text Available According to World Health Organisation figures, 30% of all cancer deaths, 20% of all coronary heart diseases and strokes and 80% of all chronic obstructive pulmonary disease are caused by cigarette smoking. Environmental Tobacco Smoke (ETS exposure has also been shown to be associated with disease and premature death in non-smokers. In response to this environmental health issue, several countries have brought about a smoking ban policy in public places and in the workplace. Countries such as the U.S., France, Italy, Ireland, Malta, the Netherlands, Sweden, Scotland, Spain, and England have all introduced policies aimed at reducing the population exposure to ETS. Several investigations have monitored the effectiveness of these smoking ban policies in terms of ETS concentrations, human health and smoking prevalence, while others have also investigated a number of alternatives to smoking ban policy measures. This paper reviews the state of the art in research, carried out in the field of ETS, smoking bans and Tobacco Control to date and highlights the need for future research in the area.

  8. Agricultural pollution control under Spanish and European environmental policies

    Science.gov (United States)

    MartíNez, Yolanda; Albiac, José

    2004-10-01

    Nonpoint pollution from agriculture is an important environmental policy issue in Spain and the European Union. Agricultural pollution in Spain is being addressed by the National Irrigation Plan and by the European Water Framework Directive. This article contributes to the ongoing policy decision process by analyzing nonpoint pollution control and presenting results on the efficiency of abatement measures. Results question the reliance of the Water Framework Directive on water pricing as a pollution instrument for reaching good status for all waters because higher water prices close to full recovery cost advocated by the directive appear to be inefficient as an emission control instrument. Another important result is that abatement measures based on input taxes and standards on nitrogen appear to be more suitable than the National Irrigation Plan subsidies designed to promote irrigation investments. The results also contribute with further evidence to the discussion on the appropriate instrument base for pollution control, proving that nonpoint pollution control instruments cannot be assessed accurately without a correct understanding of the key underlying biophysical processes. Nonpoint pollution is characterized by nonlinearities, dynamics, and spatial dependency, and neglect of the dynamic aspects may lead to serious consequences for the design of measures. Finally, a quantitative assessment has been performed to explore discriminating measures based on crop pollution potential on vulnerable soils. No significant welfare gains are found from discriminating control, although results are contingent upon the level of damage, and discrimination could be justified in areas with valuable ecosystems and severe pollution damages.

  9. Modeling Access Control Policy of a Social Network

    Directory of Open Access Journals (Sweden)

    Chaimaa Belbergui

    2016-06-01

    Full Text Available Social networks bring together users in a virtual platform and offer them the ability to share -within the Community- personal and professional information’s, photos, etc. which are sometimes sensitive. Although, the majority of these networks provide access control mechanisms to their users (to manage who accesses to which information, privacy settings are limited and do not respond to all users' needs. Hence, the published information remain all vulnerable to illegal access. In this paper, the access control policy of the social network "Facebook" is analyzed in a profound way by starting with its modeling with "Organization Role Based Access Control" model, and moving to the simulation of the policy with an appropriate simulator to test the coherence aspect, and ending with a discussion of analysis results which shows the gap between access control management options offered by Facebook and the real requirements of users in the same context. Extracted conclusions prove the need of developing a new access control model that meets most of these requirements, which will be the subject of a forthcoming work.

  10. 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. ...

  11. Increasing malaria hospital admissions in Uganda between 1999 and 2009

    Directory of Open Access Journals (Sweden)

    Alegana Victor A

    2011-04-01

    Full Text Available Abstract Background Some areas of Africa are witnessing a malaria transition, in part due to escalated international donor support and intervention coverage. Areas where declining malaria rates have been observed are largely characterized by relatively low baseline transmission intensity and rapid scaling of interventions. Less well described are changing patterns of malaria burden in areas of high parasite transmission and slower increases in control and treatment access. Methods Uganda is a country predominantly characterized by intense, perennial malaria transmission. Monthly pediatric admission data from five Ugandan hospitals and their catchments have been assembled retrospectively across 11 years from January 1999 to December 2009. Malaria admission rates adjusted for changes in population density within defined catchment areas were computed across three time periods that correspond to periods where intervention coverage data exist and different treatment and prevention policies were operational. Time series models were developed adjusting for variations in rainfall and hospital use to examine changes in malaria hospitalization over 132 months. The temporal changes in factors that might explain changes in disease incidence were qualitatively examined sequentially for each hospital setting and compared between hospital settings Results In four out of five sites there was a significant increase in malaria admission rates. Results from time series models indicate a significant month-to-month increase in the mean malaria admission rates at four hospitals (trend P Conclusions The declining malaria disease burden in some parts of Africa is not a universal phenomena across the continent. Despite moderate increases in the coverage of measures to reduce infection and disease without significant coincidental increasing access to effective medicines to treat disease may not lead to severe disease burden reductions in high transmission areas of Africa

  12. Environmental control policy change in the EU between ideas and reality

    International Nuclear Information System (INIS)

    The study on the environmental policy change in the EU covers the following issues: theoretical frame work: the scientific policy debate on political control and governance; boom of ideas: development in the discussion on European environmental policy; discrepancies: the change of political control between intention and realization; case studies: EU policy concerning the enhancement of energy efficiency, the groundwater guideline, waste policy and waste stream priorities, the European emission trading system, access to jurisdiction for environmental issues, the soil protection guideline.

  13. An Algorithm of Policy Gradient Reinforcement Learning with a Fuzzy Controller in Policies

    Directory of Open Access Journals (Sweden)

    Harukazu Igarashi

    2013-04-01

    Full Text Available Typical fuzzy reinforcement learning algorithms take value-function based approaches, such as fuzzy Q-learning in Markov Decision Processes (MDPs, and use constant or linear functions in the consequent parts of fuzzy rules. Instead of taking such approaches, we propose a fuzzy reinforcement learning algorithm in another approach. That is the policy gradient approach. Our method can handle fuzzy sets even in the consequent part and also learn the rule weights of fuzzy rules. Specifically, we derived learning rules of membership functions and rule weights for both cases when input/output variables to/from the control system are discrete and continuous.

  14. Collaboration Policies: Access Control Management in Decentralized Heterogeneous Workflows

    Directory of Open Access Journals (Sweden)

    Mine Altunay

    2006-07-01

    Full Text Available Service-oriented computing promotes collaboration by defining the standards layer that allows compatibility between disparate domains. Workflows, by taking advantage of the service oriented framework, provide the necessary tools to harness services in order to tackle complicated problems. As a result, a service is no longer exposed to a small pre-determined homogeneous pool of users; instead it has a large, undefined, and heterogeneous pool of users. This paradigm shift in computing results in increased service exposure. The interactions among the services of a workflow must be carefully evaluated against the security risks associated with them. Classical security problems, such as delegation of rights, conflict of interest, and access control in general, become more complicated due to multiple autonomous security domains and the absence of pre- established trust relationships among the domains. Our work tackles these problems in two aspects: it provides a service owner with the necessary means to express and evaluate its trust requirements from a workflow (collaboration policies, and it incorporates these trust requirements into the workflow-planning framework (workflow authorization framework. Our policy-based framework allows bilateral peer-level trust evaluations that are based on each peer’s collaboration policies, and incorporates the outcome of these evaluations into the workflow planning logic. As a result, our work provides the necessary tools for promoting multi-party ad-hoc collaborations, and aims to reduce the reluctance and hesitation towards these collaborations by attacking the security risks associated with them.

  15. Friction in the development of arms control policy. Research report

    Energy Technology Data Exchange (ETDEWEB)

    Gordon, J.A.

    1986-05-01

    This report reviews the arms-control policy and decision-making process of the last several administrations with the emphasis on how frictional forces, not unlike those discussed by von Clausewitz, affect the process. It is discusses friction within administrations, as a result of Congressional actions, from nongovernmental organizations, and from the media. Friction is present in every process involving individuals and organizations with differing views and objectives. It may not be desirable to remove all friction from the process, even if it were possible to do so, lest the decision makers stifle creativity and lose the benefit of a variety of views and approaches.

  16. Defining an information flow control policy with declassification and countermeasures

    OpenAIRE

    Garcia Cases, Llorenç

    2012-01-01

    [ANGLÈS] Information systems manage different types of data, commonly classified between public and secret data. The origin of some programs is not known by the final user, having the risk of executing a program and leaking some of the secret data. Information flow control serves to track how are the variables accessed and used in order to know if a program may leak a secret. Information flow policies define how information can flow, allowing no flow from secret to public variables in the cas...

  17. Ubiquitous access control and policy management in personal networks

    DEFF Research Database (Denmark)

    Kyriazanos, Dimitris M.; Stassinopoulos, George I.; Prasad, Neeli R.

    2006-01-01

    In this paper the authors present the challenges for enabling Security Policies Management and subsequent Ubiquitous Access Control on the Personal Network (PN) environment. A solution based on Security Profiles is proposed, supporting both partially distributed architectures-having in this case...... distributed master devices acting as access points- and also pure peer-to-peer interactions inside the PN. Taking benefit from the modularity and scalability of the design, this solution can be extended into supporting coalitions of different security domains, deriving from the creation of PNs federations....

  18. Controlling Elements In The Distribution Policy Of A Company

    Directory of Open Access Journals (Sweden)

    Pelau Corina

    2008-04-01

    Full Text Available In a permanent changing environment, the measurement and monitorisation of the performance of a company has become one of the key issues for its success. This fact increases the capacity of each company to adapt to the conditions of the environment, because only by a permanent monitorisation of the performance, a company can discover both its strenghts and its weaknesses and in time, it can react according to these. This paper concentrates on the controlling and performance measurement of the distribution policy of a company. It analyses both the efficacity and efficency of the distribution channels as well as the succes of the logistics activity.

  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. Guaranteed Cost Control for Networked Control Systems under Scheduling Policy Based on Predicted Error

    OpenAIRE

    Qixin Zhu; Kaihong Lu; Yonghong Zhu

    2014-01-01

    Scheduling policy based on model prediction error is presented to reduce energy consumption and network conflicts at the actuator node, where the characters of networked control systems are considered, such as limited network bandwidth, limited node energy, and high collision probability. The object model is introduced to predict the state of system at the sensor node. And scheduling threshold is set at the controller node. Control signal is transmitted only if the absolute value of predictio...

  1. Lead-time analysis and a control policy for production lines

    OpenAIRE

    Economopoulos, Angelos A; Kouikoglou, Vassilis S

    2010-01-01

    Abstract We address a control problem for a production line which produces one product to stock and faces random demand. During stockouts, the system quotes a fixed response time for each arriving order, and the customers place their orders only if the response time promised meets their deadlines. Customer orders are filled on a first come, first served basis. A penalty cost is incurred whenever a customer is served later than promised. A two-parameter admission/inventory control p...

  2. On admissible canonical mechanics

    International Nuclear Information System (INIS)

    General solution has been derived for the functional c-number equation which determines all admissible realisations of various mechanics with associative (but not necessary realizable by operators) law of multiplication of the observables. The general solution includes the algebras of observables for the classical and for the quantum mechanics. In addition, the solution includes one new algebra which corresponds formally to purely imaginary value to the Planck constant. The mathematical difficulties of treating the new algebra are discussed

  3. Legislators' beliefs on tobacco control policies in Nevada.

    Science.gov (United States)

    York, Nancy L; Pritsos, Chris A; Gutierrez, Antonio P

    2012-02-01

    The purpose of this study was to identify Nevada legislators' views on comprehensive smoke-free (SF) policy development. The Nevada Clean Indoor Air Act (NCIAA) is a weak law that prohibits smoking in most indoor public places, excluding stand-alone bars and casino gaming areas. Nevada's state senators and assembly members were contacted to participate in the study. A literature review guided modifications of an instrument previously used to measure county-level officials' policy views in Kentucky. Descriptive statistics were conducted for selected variables, while independent t tests and one-way analysis of variance were used to examine differences between various groups. 23 of 63 legislators participated. Even though the majority of officials recognized smoking as a health hazard and nicotine as addictive, there was not overwhelming support for strengthening the NCIAA, raising cigarette excise taxes or providing cessation benefits to citizens. Officials believed that the NCIAA was having a negative economic impact on smaller gaming businesses, but not on the casino industry. Democrats were more likely than Republicans to agree that raising the excise tax by $1 is important for needed state revenues. 63% of legislators believed that they would be persuaded to strengthen the NCIAA regardless of its financial impact on small businesses, if their constituents supported such a move. No other state relies on gaming revenues as much as Nevada. Given that legislators are strongly influenced by their constituents' views, policy advocates need to establish grassroots support for strengthening the current NCIAA and also tobacco control laws in general. PMID:21644023

  4. Religious beliefs and alcohol control policies: a Brazilian nationwide study

    Directory of Open Access Journals (Sweden)

    Giancarlo Lucchetti

    2014-03-01

    Full Text Available Objective: The connection between lower alcohol use and religiousness has been extensively examined. Nevertheless, few studies have assessed how religion and religiousness influence public policies. The present study seeks to understand the influence of religious beliefs on attitudes toward alcohol use. Methods: A door-to-door, nationwide, multistage population-based survey was carried out. Self-reported religiousness, religious attendance, and attitudes toward use of alcohol policies (such as approval of public health interventions, attitudes about drinking and driving, and attitudes toward other alcohol problems and their harmful effects were examined. Multiple logistic regression was used to control for confounders and to assess explanatory variables. Results: The sample was composed of 3,007 participants; 57.3% were female and mean age was 35.7 years. Religiousness was generally associated with more negative attitudes toward alcohol, such as limiting hours of sale (p < 0.01, not having alcohol available in corner shops (p < 0.01, prohibiting alcohol advertisements on TV (p < 0.01, raising the legal drinking age (p < 0.01, and raising taxes on alcohol (p < 0.05. Higher religious attendance was associated with less alcohol problems (OR: 0.61, 95%CI 0.40-0.91, p = 0.017, and self-reported religiousness was associated with less harmful effects of drinking (OR: 0.61, 95%CI 0.43-0.88, p = 0.009. Conclusions: Those with high levels of religiousness support more restrictive alcohol policies. These findings corroborate previous studies showing that religious people consume less alcohol and have fewer alcohol-related problems.

  5. Incentive-Based Policy Design for Pollution Control and Biodiversity Conservation : A Review

    OpenAIRE

    Frans P. de Vries; HANLEY, NICHOLAS DAVID

    2016-01-01

    This paper provides a succinct review of the main developments in the literature on incentive-based policy mechanisms in the contexts of pollution control and biodiversity conservation, dating from the early beginnings of the science in the 1960s. A focal point in the review is on the design features of these policy mechanisms. Key developments in policy design were originally established in controlling externalities arising from pollution and have since been extended to policy design tailore...

  6. SPC-based Inventory Control Policy to Im-prove Supply Chain Dynamics

    OpenAIRE

    Francesco Costantino; Giulio Di Gravio; Ahmed Shaban; Massimo Tronci

    2014-01-01

    Inventory control policies have been recognized as a contributory factor to the bullwhip effect and inventory instability. Previous studies have indicated that there is a trade-off between bullwhip effect and inventory performance where the bullwhip effect reduction might increase inventory instability. Therefore, there is a need for inventory control policies that can cope with supply chain dynamics. This paper proposes an inventory control policy based on a statistical process control appro...

  7. Emerging policies to control nonpoint source pollution of groundwater

    Science.gov (United States)

    Harter, T.

    2014-12-01

    Water quality impairment is among the highest ranking public issues of concern in the developed world. While, in Europe and North America, many water quality programs have been put in place over the past half century, regulators difficulties tackling the geographically most widespread water quality degradation in these regions: pollution of groundwater (as opposed to surface water) from diffuse sources (as opposed to point sources), including contamination with nitrate (affecting drinking water supplies in rural areas and at the rural-urban interface) and salinity (affecting irrigation water quality). Other diffuse pollution contaminants include pesticides and emerging contaminants (e.g., antibiotics and pathogens from animal farming). The geographic and hydrologic characteristics of nonpoint source pollution of groundwater are distinctly different from other types of water pollution: individually liable sources are contiguous across the landscape, and internally heterogeneous in space and time. On annually aggregated time scales (most relevant to groundwater), sources are continuously emitting pollution, while pollution levels typically do not exceed MCLs by less than a factor 2. An analysis of key elements of existing water pollution policies to control groundwater pollution from diffuse sources demonstrates the lack of both, science and institutional capacity, while existing point-source approaches cannot be applied toward the control of diffuse pollution to groundwater. For the latter, a key to a successful policy is a tiered, three-way monitoring program based on proxy compliance metrics instead of direct measurement of pollutant discharge, research linking actual pollutant discharges to proxy metrics, and long-term regional groundwater monitoring to establish large scale, long-term trends. Several examples of emerging regulations from California and the EU are given to demonstrate these principles.

  8. Migrant integration policy: a nationalist fantasy of management and control?

    OpenAIRE

    Gray, Breda

    2006-01-01

    Integration and how it is to be achieved have only recently become objects of policy and discussion in Ireland. Approaches to integration in Ireland are influenced by: the integration policies of those countries with longer experiences of immigration; EU policy; and the specificity of the Irish experience of migration. The Republic of Ireland is an interesting example of a state that is simultaneously involved in policy initiatives that promote the integration of Irish emigrant...

  9. The French energy policy between free enterprise and state control

    International Nuclear Information System (INIS)

    The present investigation aims to critically analyze the French energy policy and thereby to identify its strong points, respectively its possible problem areas. The direct and indirect consequences of that policy may be expected to be more evident today, under the more difficult conditions that followed the soaring up of the oil price, than for instance in the middle of the 60s, when, already, a thorough analysis of the French energy policy was carried out. To do justice to the policy of another country pursuing a different set of aims the analysis takes the specific boundary conditions and the aims of the French policy into account. (UA)

  10. An Instructional Exercise in Price Controls: Product Quality, Misallocation, and Public Policy

    OpenAIRE

    Weisman Dennis L.; Sanders Shane D.; Moundigbaye Mantobaye

    2012-01-01

    A price control policy has several potential effects upon market welfare. These include deadweight loss, surplus transfer from producer to consumer, misallocative cost, and quality degradation. The present article provides accessible pedagogical models with which to incorporate the former two issues into a welfare analysis of price control. The analysis allows students to form a more complete understanding of price control policies.

  11. THE USE OF ESTIMATED POLLUTION FLOWS IN AGRICULTURAL POLLUTION CONTROL POLICY: IMPLICATIONS FOR ABATEMENT AND POLICY INSTRUMENTS

    OpenAIRE

    Shortle, James S.

    1984-01-01

    Flows of water pollutants from agricultural sources are, for all practical purposes, unobservable by direct monitoring. These flows can, however, be estimated using hydrological models. The analysis presented in this paper demonstrates that uncertainty on estimated flows is not neutral with respect to the optimal level and allocation of estimated abatement or with respect to the expected net benefits of alternative pollution control policy instruments. Policy implications are noted.

  12. Traditional vs. Contemporary Management Control Practices for Developing Public Health Policies

    Science.gov (United States)

    Naranjo-Gil, David; Sánchez-Expósito, María Jesús; Gómez-Ruiz, Laura

    2016-01-01

    Public health policies must address multiple goals and complex community health needs. Recently, management control practices have emerged to provide a broader type of information for evaluating the effectiveness of healthcare policies, and relate activities and processes to multiple strategic outcomes. This study compares the effect of traditional and contemporary management control practices on the achievement of public health policies. It is also analyzed how two different uses of such practices (enabling vs. coercive) facilitate the achievement of public health policies. Relationships are explored using data collected from managers from public health agencies and public hospitals in Spain. The findings show that contemporary management control practices are more suitable than traditional practices to achieve public health policies. Furthermore, results show that public health policies are better achieved when managers use management control practices in an enabling way rather than in a coercive way. PMID:27428985

  13. Traditional vs. Contemporary Management Control Practices for Developing Public Health Policies

    Directory of Open Access Journals (Sweden)

    David Naranjo-Gil

    2016-07-01

    Full Text Available Public health policies must address multiple goals and complex community health needs. Recently, management control practices have emerged to provide a broader type of information for evaluating the effectiveness of healthcare policies, and relate activities and processes to multiple strategic outcomes. This study compares the effect of traditional and contemporary management control practices on the achievement of public health policies. It is also analyzed how two different uses of such practices (enabling vs. coercive facilitate the achievement of public health policies. Relationships are explored using data collected from managers from public health agencies and public hospitals in Spain. The findings show that contemporary management control practices are more suitable than traditional practices to achieve public health policies. Furthermore, results show that public health policies are better achieved when managers use management control practices in an enabling way rather than in a coercive way.

  14. Traditional vs. Contemporary Management Control Practices for Developing Public Health Policies.

    Science.gov (United States)

    Naranjo-Gil, David; Sánchez-Expósito, María Jesús; Gómez-Ruiz, Laura

    2016-01-01

    Public health policies must address multiple goals and complex community health needs. Recently, management control practices have emerged to provide a broader type of information for evaluating the effectiveness of healthcare policies, and relate activities and processes to multiple strategic outcomes. This study compares the effect of traditional and contemporary management control practices on the achievement of public health policies. It is also analyzed how two different uses of such practices (enabling vs. coercive) facilitate the achievement of public health policies. Relationships are explored using data collected from managers from public health agencies and public hospitals in Spain. The findings show that contemporary management control practices are more suitable than traditional practices to achieve public health policies. Furthermore, results show that public health policies are better achieved when managers use management control practices in an enabling way rather than in a coercive way. PMID:27428985

  15. The path to impact of operational research on tuberculosis control policies and practices in Indonesia

    Directory of Open Access Journals (Sweden)

    Ari Probandari

    2016-02-01

    Full Text Available Background: Operational research is currently one of the pillars of the global strategy to control tuberculosis. Indonesia initiated capacity building for operational research on tuberculosis over the last decade. Although publication of the research in peer-reviewed journals is an important indicator for measuring the success of this endeavor, the influence of operational research on policy and practices is considered even more important. However, little is known about the process by which operational research influences tuberculosis control policy and practices. Objective: We aimed to investigate the influence of operational research on tuberculosis control policy and practice in Indonesia between 2004 and 2014. Design: Using a qualitative study design, we conducted in-depth interviews of 50 researchers and 30 policy makers/program managers and performed document reviews. Transcripts of these interviews were evaluated while applying content analysis. Results: Operational research contributed to tuberculosis control policy and practice improvements, including development of new policies, introduction of new practices, and reinforcement of current program policies and practices. However, most of these developments had limited sustainability. The path from the dissemination of research results and recommendations to policy and practice changes was long and complex. The skills, interests, and political power of researchers and policy makers, as well as health system response, could influence the process. Conclusions: Operational research contributed to improving tuberculosis control policy and practices. A systematic approach to improve the sustainability of the impact of operational research should be explored.

  16. On the Decidability of the Safety Problem for Access Control Policies

    OpenAIRE

    Kleiner, Eldar; Newcomb, Tom

    2006-01-01

    An access control system regulates the rights of users to gain access to resources in accordance with a specified policy. The rules in this policy may interact in a way that is not obvious via human inspection; there is, therefore, a need for automated verification techniques that can check whether a policy does indeed implement some desired security requirement. Thirty years ago, a formalisation of access control presented a model and a safety specification for which satisfaction is undecida...

  17. Banding and ballots: secondary school admisssions in England: admissions in 2012/13 and the impact of growth of academies

    OpenAIRE

    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 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 local authorities and schools use pupil banding as part of the Year 7 admissions process. The report provides a brief overview of the historical and policy context relating to secondary school admissions,...

  18. Reach on Policy-based Transmition Control Technology in MPLS Communication Network

    Directory of Open Access Journals (Sweden)

    Jingyang Wang

    2012-07-01

    Full Text Available With the increasing variety of service types supported by the communication network, more and more requirements for bandwidth occurred. Different types of services have different characteristics in the aspects of importance, bandwidth demand, time-sensitive and so on. Customers’s requirements for the controllability and manageability of communication network are more and more demanding. The paper researches on policy-based transmition control technology in MPLS controllable and manageable communication network, proposes a new transmition control method. The method supports to create and to release the dynamical connection of MPLS TE or MPLS LSP, uses service-priority policy, bandwidth policy and degradation policy for policy decision. In order to improve the QoS of service-priority policy, Policy-Condition Maximum Matching Algorithm (PCMMA is put forward. The principle of the policy-based transmition control in the MPLS communication network is explained. An experiment is performed to support the research. The experiment results show that the policy-based transmition control technology in MPLS communication network is effective and valid. It helps to improve the QoS of network and the utilization rate of network resource.

  19. Status of infection control policies and organisation in European hospitals, 2001: the ARPAC study.

    NARCIS (Netherlands)

    Struelens, M.J.; Wagner, D.; Bruce, J.; MacKenzie, F.M.; Cookson, B.; Voss, A.; Broek, P.J.J.A. van den; Gould, I.

    2006-01-01

    Patient safety in hospital care depends on effective infection control (IC) programmes. The Antimicrobial Resistance Prevention and Control (ARPAC) study assessed the organisation, components and human resources of IC programmes in European hospitals. A questionnaire survey of policies and procedure

  20. Issues in College Admissions Testing.

    Science.gov (United States)

    Noble, Julie P.; Camara, Wayne J.

    College admissions tests provide a standardized and objective measure of student achievement and generalized skills. Unlike high school grades or rank, admission tests are a common measure for comparing students who have attended different high schools, completed different courses, received different grades in courses taught by different teachers,…

  1. Social Organization in Bars: Implications for Tobacco Control Policy

    OpenAIRE

    Lee, Juliet P.; Antin, Tamar M.J.; Roland S. Moore

    2008-01-01

    This paper considers social roles and relationships of the patrons, staff and owners of bars as critical factors determining adherence to public health policies, and specifically California’s smokefree workplace law. Specific elements of social organization in bars affecting health policy include the community within which the bar is set, the unique identity the bar creates, the bar staff and patrons who enact this identity, and their bar society. These elements were found to contribute to th...

  2. Religious beliefs and alcohol control policies: a Brazilian nationwide study

    OpenAIRE

    Giancarlo Lucchetti; Harold G. Koenig; Ilana Pinsky; Ronaldo Laranjeira; Homero Vallada

    2014-01-01

    Objective: The connection between lower alcohol use and religiousness has been extensively examined. Nevertheless, few studies have assessed how religion and religiousness influence public policies. The present study seeks to understand the influence of religious beliefs on attitudes toward alcohol use. Methods: A door-to-door, nationwide, multistage population-based survey was carried out. Self-reported religiousness, religious attendance, and attitudes toward use of alcohol policies (such a...

  3. Control policies impact on commercial trade in nuclear sector

    International Nuclear Information System (INIS)

    The restructuring of the economic sectors, improvement of the business environment and, implicitly, the development of the appropriate legislative framework correspond to the main objectives of the Work Programme issued by the Government of Romania with view to fulfil the criteria imposed by the European Commission for the accession of Romania to European Union planned for the year 2007. One of the legislative package section, being under revision of the Legislative Chamber of Romania, is referring to power sector, where remarkable efforts are made in connection with energy and gas market liberalization towards 40% opening, correction applied to the thermal and electric power and gas tariffs, with a view to get fully cover of the production costs, start up of the privatisation process for some of the distribution companies and all these represent part of the main priorities of the Romanian government for the restructuring of the power sector. SN Nuclearelectrica SA - SNN SA - has as domain of its main activities the development of the nuclear program in Romania regarding: Cernavoda Unit 1 operation for production and delivery of electric power to the National Grid (since 1996), the nuclear fuel fabrication at Nuclear Fuel Plant in Pitesti, the completion and commissioning of the Cernavoda Unit 2 and start up, in the near future, of the work for Unit 3 completion. The trade activity within the power production sector using nuclear fuel is governed, due to its specific, by the rules and laws of Romania and are also subject of the international rules related to the foreign trade and, particularly to the policy of transaction of the special materials on international market. This category of special materials, named strategic materials with dual use, are under the control of the National Agency for Export Control - ANCEX, as well as other specialised and dedicated Romanian authorities, as: National Commission for the Nuclear Activities Control - CNCAN, specialized

  4. The politics of 'branding' in policy transfer: the case of DOTS for tuberculosis control.

    Science.gov (United States)

    Ogden, Jessica; Walt, Gill; Lush, Louisiana

    2003-07-01

    How and why policies are transferred between countries has attracted considerable interest from scholars of public policy over the last decade. This paper, based on a larger study, sets out to explore the processes involved in policy transfer between international and national levels. These processes are illustrated by looking at a particular public health policy--DOTS for the control and treatment of tuberculosis. The paper demonstrates how, after a long period of neglect, resources were mobilised to put tuberculosis back on international and national public policy agendas, and then how the policy was 'branded' and marketed as DOTS, and transferred to low and middle income countries. It focuses specifically on international agenda setting and policy formulation, and the role played by international organisations in those processes. It shows that policy communities, and particular individuals within them, may take political rather than technical positions in these processes, which can result in considerable contestation. The paper ends by suggesting that while it is possible to raise the profile of a policy dramatically through branding and marketing, success also depends on external events providing windows of opportunity for action. Second, it warns that simplifying policy approaches to 'one-size-fits-all' carries inherent risks, and can be perceived to harm locally appropriate programmes. Third, top-down internationally driven policy changes may lead to apparent policy transfer, but not necessarily to successfully implemented programmes. PMID:12753826

  5. Measurement-Based Performance and Admission Controlin Wireless Sensor Networks

    OpenAIRE

    Orhan, Ibrahim; Lindh, Thomas

    2011-01-01

    This journal paper presents a measurement-basedperformance management system for contention-based wireless sensor networks. Its main features are admission andperformance control based on measurement data from lightweight performance meters in the endpoints. Test results showthat admission and performance control improve the predictability and level of performance. The system can also be used asa tool for dimensioning and configuration of services in wireless sensor networks. Among the rapidl...

  6. Controle social e políticas de saúde Social control over health policies

    Directory of Open Access Journals (Sweden)

    Aldaíza Sposati

    1992-12-01

    Full Text Available Na história de democratização das políticas de saúde, um dos campos que construiu visibilidade aos movimentos de saúde, quer pela denúncia das "ausências e omissões" dos serviços instalados, quer pela luta no sentido de construir um espaço regular para o exercício do controle nos serviços e nas burocracias da gestão da saúde, foi o controle social da coisa pública. No início da década de 80, a experiência marcante na região leste da cidade de São Paulo foi a de criar os conselhos de saúde como representação popular no controle do Estado. Nesta reflexão, as autoras não pretendem discutir a composição da representação, mas sim avançar para novos problemas. Na conjuntura pós Constituição de 1988, vivemos um novo momento democrático. As leis, a princípio, amparam a participação da população nas políticas de saúde e são defensoras dos direitos sociais. Como, então, é entendido o campo do controle social? Este restringe-se aos serviços de saúde ou é mais ampliado, englobando a política de saúde? Como é que as leis passam da sua formulação para a sua aplicação? Busca-se, no texto, mapear questões que se colocam quando o controle social se orienta para constituir uma pressão pela mudança/alteração da situação.As the democratization of health policies develops, social control over public interests has been of help in providing health movements with prominence, not only by denouncing cases of "negligence and omission" by established services, but also by struggling to create regular, favourable conditions by which to exercise control over services and governmental management of public health policies. In the early 1980s, a remarkable experience occurred in the "Zona Leste" or eastern burrough of the city of São Paulo, consisting of the emergence of Health Councils as a means of popular representation in the control over the state. Through their analysis of these issues, the authors' intent is

  7. 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

  8. Investigation of the Relationship between Ownership–Control Discrepancy and Dividend Policy in Tehran Stock Exchange

    OpenAIRE

    Sakineh Darvishzadeh; Zeinolabedin Sadeghi; Ahmad Khodamipour

    2013-01-01

    Present research examines the relation between the ownership-control discrepancy the major shareholder and dividend policy in Tehran Stock Exchange. This research focuses on the effect of the conflicts of interests between majority shareholders and minority shareholders on firms’ dividend policy, because dividend policy can serve as a replacement for this the conflicts of interests. In this research, Investigation all firms in Tehran Stock Exchange that serves the annual reports for the years...

  9. Dividend policy, corporate control and tax clienteles: The case of Germany

    OpenAIRE

    Andres, Christian; Betzer, André; Goergen, Marc

    2011-01-01

    This paper studies the impact of the concentration of control, the type of controlling shareholder and the dividend tax preference of the controlling shareholder on dividend policy for a panel of 220 German firms over 1984-2005. While the concentration of control does not have an effect on the dividend payout, there is strong evidence that the type of controlling shareholder matters as family controlled firms have high dividend payouts whereas bank controlled firms have low dividend payouts. ...

  10. Addressing Teachers' Feelings of Lack of Control over Policy Issues

    Science.gov (United States)

    Judson, Eugene

    2014-01-01

    This study reports on how an American Education System course, traditionally taught with broad objectives, was contextualized for science teachers. Using pre-assessment data, specific policy issues were targeted with the objective of increasing teachers' feelings of influence over issues. The approach used was adapted from exposure therapy, a…

  11. Tobacco Control Policy Advocacy Attitudes and Self-Efficacy among Ethnically Diverse High School Students

    Science.gov (United States)

    Ramirez, Amelie G.; Velez, Luis F.; Chalela, Patricia; Grussendorf, Jeannie; McAlister, Alfred L.

    2006-01-01

    This study applied self-efficacy theory to assess empowerment to advocate on behalf of tobacco control policies. The Youth Tobacco Survey with added policy advocacy self-efficacy, attitudes, and outcome expectations scales was given to 9,177 high school students in Texas. Asians showed the lowest prevalence of experimentation and current smoking,…

  12. Food Policy Options : Preventing and Controlling Nutrition Related Non-Communicable Diseases

    OpenAIRE

    World Health Organization; World Bank

    2002-01-01

    Although diet structure and activity throughout the developing world have shifted drastically over the past several decades, little is known about effective policies to influence the supply and demand for food to control the undesirable effects, such as obesity, heart disease and cancer, of those shifts. Two questions specifically need to be addressed: a) Are the traditional policy levers ...

  13. An Algorithm of Policy Gradient Reinforcement Learning with a Fuzzy Controller in Policies

    OpenAIRE

    Harukazu Igarashi; Seiji Ishihara

    2013-01-01

    Typical fuzzy reinforcement learning algorithms take value-function based approaches, such as fuzzy Q-learning in Markov Decision Processes (MDPs), and use constant or linear functions in the consequent parts of fuzzy rules. Instead of taking such approaches, we propose a fuzzy reinforcement learning algorithm in another approach. That is the policy gradient approach. Our method can handle fuzzy sets even in the consequent part and also learn the rule weights of fuzzy rules. Specifically, we ...

  14. 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%

  15. Utilizing Inmates as Group Leaders in the Admissions Phase of Incarceration

    Science.gov (United States)

    Hirschorn, Stephen I.; Burck, Harman D.

    1977-01-01

    This article examines whether inmate group leaders can be successful in reducing state anxiety, promoting a positive attitude toward their admissions program and future psychotherapy, and assisting in the group member's learning of the institution's rules, regulations, and policies. (Author)

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

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Yu-Kai [Department of Environmental Health, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115 (United States); Wang, Yu-Chun [Department of Bioenvironmental Engineering, College of Engineering, Chung Yuan Christian University, 200 Chung-Pei Road, Chung Li 320, Taiwan (China); Research Center for Environmental Risk Management, Chung Yuan Christian University, 200 Chung-Pei Road, Chung Li 320, Taiwan (China); Ho, Tsung-Jung [The Division of Chinese Medicine, China Medical University Beigang Hospital, Taiwan (China); School Of Chinese Medicine, College of Chinese Medicine, China Medical University, 91 Xueshi Road, Taichung City 404, Taiwan (China); Lu, Chensheng, E-mail: cslu@hsph.harvard.edu [Department of Environmental Health, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115 (United States)

    2013-01-15

    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 (< 65 years, 65 + years and all ages) hospital admission records of nephritis, nephrotic syndrome, or nephrosis, in the form of electronic insurance reimbursement claims, were retrieved from Taiwan's National Health Insurance Research Database during the period of 2000–2008. The area–age-specific relative risk (RR) accounting for 8 days of lag for temperature on hospital admissions of kidney diseases were estimated using distributed lag non-linear models with the Poisson distribution controlling for extreme temperature events, levels of air pollutants (PM{sub 10}, O{sub 3}, and NO{sub 2}) 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

  17. Market-Based Policies for Pollution Control in Latin America

    OpenAIRE

    Sarah West; Ann Wolverton

    2003-01-01

    Rapid urbanization and increased industrialization have led to high pollution levels throughout Latin America. Economists tout policies based on market-based economic incentives as the most cost-effective methods for addressing a wide variety of environmental problems. This chapter examines market-based incentives and their applicability to Latin America. We first review the market-based incentives traditionally used to address pollution – emissions taxes, environmental subsidies, tax and sub...

  18. Modelling and Analysing Access Control Policies in XACML 3.0

    DEFF Research Database (Denmark)

    Ramli, Carroline Dewi Puspa Kencana

    XACML (eXtensible Access Control Markup Language) is a prominent access control language that is widely adopted both in industry and academia. XACML is an international standard in the field of information security. The problem with XACML is that its specification is described in natural language...... (c.f. GM03,Mos05,Ris13) and manual analysis of the overall effect and consequences of a large XACML policy set is a very daunting and time-consuming task. In this thesis we address the problem of understanding the semantics of access control policy language XACML, in particular XACML version 3.0. The...... main focus of this thesis is modelling and analysing access control policies in XACML 3.0. There are two main contributions in this thesis. First, we study and formalise XACML 3.0, in particular the Policy Decision Point (PDP). The concrete syntax of XACML is based on the XML format, while its standard...

  19. The Politics of Seasonal Foreign Worker Admissions to France, 1974-2010

    OpenAIRE

    PLEWA, Piotr

    2010-01-01

    In response to the economic crisis of 1973/74 the French government curbed the admissions of seasonal foreign workers. By 2010 the curbs have remained in effect, however, the number of foreign workers authorized to work in French seasonal agriculture under “exceptional circumstances” has been growing. The study inquires about the mechanisms and actors responsible for this gradual policy change. It argues that the gradual expansion of seasonal foreign worker policy admissions to Fr...

  20. THE OPTIMALITY AND CONTROLLABILITY OF MONETARY POLICY THROUGH DELEGATION WITH CONSISTENT TARGETS

    OpenAIRE

    Huiping Yuan; Miller, Stephen M.; Langnan Chen

    2011-01-01

    This paper uses two game-theory models, where monetary policy is first ineffective and then effective, to illustrate a delegation scheme that makes consistent policy optimal and controllable. The delegation scheme produces the minimization of both the social and the central bank loss functions. Minimizing the social loss function generates optimality conditions. Minimizing the central bank loss function produces controllability conditions. Optimality conditions depend on specific models, and ...

  1. 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...

  2. Electricity Pricing Policy Should Serve Macro-Economic Control

    Institute of Scientific and Technical Information of China (English)

    Zhao Xiaoping

    2005-01-01

    The National Development and Reform Commission beefed up its efforts to promote the work of electricity price reform in 2004. It took measures in aspects of easing price contradictions, tentatively implementing discriminated price and time-of-use price and issuing a policy on the linkage of coal and electricity prices and price administration. In 2005 the basic thinking of the Commission's electricity price reform is to actively advance the pilot work of price reform,carry out the reform of transmission and distribution price, enlarge the scope of pilot work of large consumer's direct purchase, simplify sales price structure and bring about the linkage of coal and electricity prices.

  3. Integrated vector management for malaria control in Uganda: knowledge, perceptions and policy development

    Directory of Open Access Journals (Sweden)

    Mutero Clifford M

    2012-01-01

    Full Text Available Abstract Background Integrated vector management (IVM is increasingly being recommended as an option for sustainable malaria control. However, many malaria-endemic countries lack a policy framework to guide and promote the approach. The objective of the study was to assess knowledge and perceptions in relation to current malaria vector control policy and IVM in Uganda, and to make recommendations for consideration during future development of a specific IVM policy. Methods The study used a structured questionnaire to interview 34 individuals working at technical or policy-making levels in health, environment, agriculture and fisheries sectors. Specific questions on IVM focused on the following key elements of the approach: integration of chemical and non-chemical interventions of vector control; evidence-based decision making; inter-sectoral collaboration; capacity building; legislation; advocacy and community mobilization. Results All participants were familiar with the term IVM and knew various conventional malaria vector control (MVC methods. Only 75% thought that Uganda had a MVC policy. Eighty percent (80% felt there was inter-sectoral collaboration towards IVM, but that it was poor due to financial constraints, difficulties in involving all possible sectors and political differences. The health, environment and agricultural sectors were cited as key areas requiring cooperation in order for IVM to succeed. Sixty-seven percent (67% of participants responded that communities were actively being involved in MVC, while 48% felt that the use of research results for evidence-based decision making was inadequate or poor. A majority of the participants felt that malaria research in Uganda was rarely used to facilitate policy changes. Suggestions by participants for formulation of specific and effective IVM policy included: revising the MVC policy and IVM-related policies in other sectors into a single, unified IVM policy and, using legislation to

  4. Analysis and control design of sustainable policies for greenhouse gas emissions

    International Nuclear Information System (INIS)

    Reducing greenhouse gas emissions is now an urgent priority. Systems control theory, and in particular feedback control, can be helpful in designing policies that achieve sustainable levels of emissions of CO2 (and other greenhouse gases) while minimizing the impact on the economy, and at the same time explicitly addressing the high levels of uncertainty associated with predictions of future emissions. In this paper, we describe preliminary results for an approach where model predictive control (MPC) is applied to a model of the UK economy (UK 4see model) as a test bed to design sustainable policies for greenhouse gas emissions. Using feedback control, the policies are updated on the basis of the actual emissions, rather than on the predicted level of emissions. The basic structure and principle of the UK 4see model is described and its implementation in Simulink is presented. A linearized state space model is obtained and model predictive control is applied to design policies for CO2 emissions. Simulation results are presented to demonstrate the effectiveness of the proposed method. The preliminary results obtained in this paper illustrate the strength of the proposed design approach and form the basis for future research on using systems control theory to design optimal sustainable policies

  5. Control on Housing Segregation:Housing Modes and Public Policies

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>1. Housing segregation:advocating or controlling?The phenomenon of housing segregation has become more and more obvious in Chinese cities in recent years; however, there is no agreement on whether it should

  6. The challenges of tobacco control in Romania. Policy review.

    Science.gov (United States)

    Loubeau, Patricia R

    2013-06-01

    This article investigates elements of tobacco control issues in Romania. Using European Union requirements for tobacco control legislation as a backdrop, it examines the key issues of smuggling, taxation, and unemployment in a transitional economy. Romania has made some progress by adding text and pictorial warnings to cigarette packages and offering comprehensive help to quit smoking. Using empirical examples, it is argued that more progress in tobacco control is needed in the area of increased taxation, enforcement of non-smoking bans, and new legislation requiring advertising bans at point of sale, kiosks, and billboards. This article draws wider public attention to the problems that smuggling and taxation present for tobacco control, helps identify other countries confronting similar issues, and stimulates effective interventions. PMID:24053066

  7. CERN’s Computing rules updated to include policy for control systems

    CERN Multimedia

    IT Department

    2008-01-01

    The use of CERN’s computing facilities is governed by rules defined in Operational Circular No. 5 and its subsidiary rules of use. These rules are available from the web site http://cern.ch/ComputingRules. Please note that the subsidiary rules for Internet/Network use have been updated to include a requirement that control systems comply with the CNIC(Computing and Network Infrastructure for Control) Security Policy. The security policy for control systems, which was approved earlier this year, can be accessed at https://edms.cern.ch/document/584092 IT Department

  8. Context-Sensitive Access Control Policy Evaluation and Enforcement Using Vulnerability Exploitation Data

    Directory of Open Access Journals (Sweden)

    Hassan Rasheed

    2013-09-01

    Full Text Available Conventional approaches for adapting security enforcement in the face of attacks rely on administrators to make policy changes that will limit damage to the system. Paradigm shifts in the capabilities of attack tools demand supplementary strategies that can also adjust policy enforcement dynamically. We extend the current research by proposing an approach for integrating real-time security assessment data into access control systems. Critical application scenarios are tested to examine the impact of using risk data in policy evaluation and enforcement.

  9. A Dynamic Inventory Control Policy Under Demand, Yield and Lead Time Uncertainties

    OpenAIRE

    Babai, Z.; Dallery, Yves

    2006-01-01

    In this paper, we analyze a single-stage and single-item inventory control system with non-stationary demand and uncertain system parameters. We propose two extensions of a previous work on the dynamic reorder point policy (the (rk;Q) policy [2]). In the first extension, we include three types of uncertainties pertaining to the demand uncertainty, the lead time uncertainty, and the yield uncertainty. We study the impact of these uncertainties on the (rk;Q) policy and we provide an approximati...

  10. Association between tobacco control policies and smoking behaviour among adolescents in 29 European countries

    DEFF Research Database (Denmark)

    Hublet, Anne; Schmid, Holger; Clays, Els;

    2009-01-01

    vending machines) = -0.372, P = 0.06]. CONCLUSIONS: For boys, some of the currently recommended tobacco control policies may help to reduce smoking prevalence. However, the model is less suitable for girls, indicating gender differences in the potential efficacy of smoking policies. Future research should......, including daily smoking (dichotomous). FINDINGS: Interaction effects between gender and smoking policies were identified, therefore boys and girls were analysed separately. Large cross-national differences in smoking prevalence were documented. Intraclass correlations (ICC) of 0.038 (boys) and 0.035 (girls...

  11. Optimal railway infrastructure maintenance and repair policies to manage risk under uncertainty with adaptive control

    OpenAIRE

    Romera, Rosario; Carretero Pérez, Jesús; Pérez, Jose M.; González, Javier

    2006-01-01

    The aim of this paper is to apply two adaptive control formulations under uncertainty, say open-loop and closed-loop, to the process of developing maintenance and repair policies for railway infrastructures. To establish the optimal maintenance and repair policies for railway lines, we use a previous design of risk model based on two factors: the criticality and the deterioration ratios of the facilities. Thus, our theory benefits from the Reliability Centered Management methodology applicati...

  12. Impact of California air quality control policies on the use and demand for natural gas

    International Nuclear Information System (INIS)

    This paper discusses the impact of California's air quality control policies on the use of natural gas. In this paper the author would like to briefly review the regulatory structure for air pollution control in California, summarize the requirement of the California Clean Air Act of 1988, and discuss the impacts of our regulatory programs on the use and demand for natural gas

  13. School Decentralization and Community Control: Policy in Search of a Research Agenda.

    Science.gov (United States)

    Spivak, Harriet

    The relationship between research and educational policy in the areas of school system decentralization and community control is analyzed in this dissertation. The literature on decentraliztion and community control is reviewed. It is contended that existing empirical research on these subjects has not systematically tested the assumptions…

  14. The Role of Management Control Systems and Top Teams in Implementing Environmental Sustainability Policies

    Directory of Open Access Journals (Sweden)

    David Naranjo-Gil

    2016-04-01

    Full Text Available This paper simultaneously examines how the design of management control systems and top management team composition help organizations to implement environmental sustainability policies successfully. It also analyzes the effect of those policies on both short-term and long-term performance. A questionnaire was sent to every member of top management teams in 231 public hospitals in Spain. It obtained 457 useful responses from TMT members, allowing us to collect data on 81 full top management teams (35.06%. The partial least squares statistical technique was used to test the causal research model. It was found that the implementation of environmental sustainability policies has a negative effect on short-term organizational performance and a positive effect on long-term performance. The results show that management control systems and top management team diversity have a complementary effect on implementing policies focused on environmental sustainability. A broad design of management control systems helps organizations adopt sustainability policies to achieve long-term performance. It was also found that top management team diversity mitigates the negative effect of adopting environmental sustainability policies on short-term organizational performance.

  15. College Admissions: Beyond Conventional Testing

    Science.gov (United States)

    Sternberg, Robert J.

    2012-01-01

    Standardized admissions tests such as the SAT (originally stood for "Scholastic Aptitude Test") and the ACT measure only a narrow segment of the skills needed to become an active citizen and possibly a leader who makes a positive, meaningful, and enduring difference to the world. The problem with these tests is that they promised, under what have…

  16. Admission Conditions and Graduates' Employability

    Science.gov (United States)

    Alexandre, Fernando; Portela, Miguel; Sa, Carla

    2009-01-01

    In a context of increasing competition for students, admission conditions have been used as an instrument in a strategy of differentiation. Such a strategy is guided by short-run concerns, that is, the immediate need to attract more students. This article takes a longer term view, by examining graduates' employability. The authors find that…

  17. 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…

  18. Admission to selective schools, alphabetically

    Czech Academy of Sciences Publication Activity Database

    Jurajda, Štěpán; Münich, Daniel

    -, č. 5427 (2006), s. 1-28. ISSN 0265-8003 R&D Projects: GA MŠk LC542 Institutional research plan: CEZ:AV0Z70850503 Keywords : admission chances * schools * alphabet ical listing Subject RIV: AH - Economics http://www.cepr.org/pubs/new-dps/dplist.asp?dpno=5427

  19. Admission to selective schools, alphabetically

    Czech Academy of Sciences Publication Activity Database

    Jurajda, Štěpán; Münich, Daniel

    2010-01-01

    Roč. 29, č. 6 (2010), s. 1100-1109. ISSN 0272-7757 R&D Projects: GA MŠk LC542 Institutional research plan: CEZ:MSM0021620846 Keywords : admissions to school * alphabet ical order * order effects Subject RIV: AH - Economics Impact factor: 1.066, year: 2010

  20. Admission to selective schools, alphabetically

    Czech Academy of Sciences Publication Activity Database

    Jurajda, Štěpán; Münich, Daniel

    -, č. 282 (2005), s. 1-29. ISSN 1211-3298 R&D Projects: GA ČR GA403/03/0340 Institutional research plan: CEZ:AV0Z70850503 Keywords : admission chances * schools * alphabet ical listing Subject RIV: AH - Economics http://www.cerge-ei.cz/pdf/wp/Wp282.pdf

  1. 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...

  2. Reach on Policy-based Transmition Control Technology in MPLS Communication Network

    OpenAIRE

    Jingyang Wang; Yu Hua; Min Huang; Liwei Guo; Wanzhen Zhou

    2012-01-01

    With the increasing variety of service types supported by the communication network, more and more requirements for bandwidth occurred. Different types of services have different characteristics in the aspects of importance, bandwidth demand, time-sensitive and so on. Customers’s requirements for the controllability and manageability of communication network are more and more demanding. The paper researches on policy-based transmition control technology in MPLS controllable and manageab...

  3. A mixed singular/switching control problem for a dividend policy with reversible technology investment

    OpenAIRE

    Huyen, Pham; Vathana, Ly Vath; Villeneuve, Stéphane

    2006-01-01

    We consider a mixed stochastic control problem that arises in Mathematical Finance literature with the study of interactions between dividend policy and investment. This problem combines features of both optimal switching and singular control. We prove that our mixed problem can be decoupled in two pure optimal stopping and singular control problems. Furthermore, we describe the form of the optimal strategy by means of viscosity solution techniques and smooth-fit properties on the correspondi...

  4. Off-policy integral reinforcement learning optimal tracking control for continuous-time chaotic systems

    Science.gov (United States)

    Wei, Qing-Lai; Song, Rui-Zhuo; Sun, Qiu-Ye; Xiao, Wen-Dong

    2015-09-01

    This paper estimates an off-policy integral reinforcement learning (IRL) algorithm to obtain the optimal tracking control of unknown chaotic systems. Off-policy IRL can learn the solution of the HJB equation from the system data generated by an arbitrary control. Moreover, off-policy IRL can be regarded as a direct learning method, which avoids the identification of system dynamics. In this paper, the performance index function is first given based on the system tracking error and control error. For solving the Hamilton-Jacobi-Bellman (HJB) equation, an off-policy IRL algorithm is proposed. It is proven that the iterative control makes the tracking error system asymptotically stable, and the iterative performance index function is convergent. Simulation study demonstrates the effectiveness of the developed tracking control method. Project supported by the National Natural Science Foundation of China (Grant Nos. 61304079 and 61374105), the Beijing Natural Science Foundation, China (Grant Nos. 4132078 and 4143065), the China Postdoctoral Science Foundation (Grant No. 2013M530527), the Fundamental Research Funds for the Central Universities, China (Grant No. FRF-TP-14-119A2), and the Open Research Project from State Key Laboratory of Management and Control for Complex Systems, China (Grant No. 20150104).

  5. 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)

  6. 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...

  7. Italy SimSmoke: the effect of tobacco control policies on smoking prevalence and smoking attributable deaths in Italy

    Directory of Open Access Journals (Sweden)

    Levy David

    2012-08-01

    Full Text Available Abstract Background While Italy has implemented some tobacco control policies over the last few decades, which resulted in a decreased smoking prevalence, there is still considerable scope to strengthen tobacco control policies consistent with the World Health Organization (WHO policy guidelines. The present study aims to evaluate the effect of past and project the effect of future tobacco control policies on smoking prevalence and associated premature mortality in Italy. Methods To assess, individually and in combination, the effect of seven types of policies, we used the SimSmoke simulation model of tobacco control policy. The model uses population, smoking rates and tobacco control policy data for Italy. Results Significant reductions of smoking prevalence and premature mortality can be achieved through tobacco price increases, high intensity media campaigns, comprehensive cessation treatment program, strong health warnings, stricter smoke-free air regulations and advertising bans, and youth access laws. With a comprehensive approach, the smoking prevalence can be decreased by as much as 12% soon after the policies are in place, increasing to a 30% reduction in the next twenty years and a 34% reduction by 30 years in 2040. Without effective tobacco control policies, a total of almost 300 thousand lives will be prematurely lost due to smoking by the year 2040. Conclusion Besides presenting the benefits of a comprehensive tobacco control strategy, the model helps identify information gaps in surveillance and evaluation schemes that will promote the effectiveness of future tobacco control policy in Italy.

  8. Admissible Strategies in Semimartingale Portfolio Selection

    OpenAIRE

    Biagini, S; Černý, A.

    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; each admissible strategy can be app...

  9. Closed-Loop Learning of Visual Control Policies

    CERN Document Server

    Jodogne, S R; 10.1613/jair.2110

    2011-01-01

    In this paper we present a general, flexible framework for learning mappings from images to actions by interacting with the environment. The basic idea is to introduce a feature-based image classifier in front of a reinforcement learning algorithm. The classifier partitions the visual space according to the presence or absence of few highly informative local descriptors that are incrementally selected in a sequence of attempts to remove perceptual aliasing. We also address the problem of fighting overfitting in such a greedy algorithm. Finally, we show how high-level visual features can be generated when the power of local descriptors is insufficient for completely disambiguating the aliased states. This is done by building a hierarchy of composite features that consist of recursive spatial combinations of visual features. We demonstrate the efficacy of our algorithms by solving three visual navigation tasks and a visual version of the classical Car on the Hill control problem.

  10. Cost-Sensitive Bayesian Control Policy in Human Active Sensing

    Directory of Open Access Journals (Sweden)

    Sheeraz Ahmad

    2014-12-01

    Full Text Available An important but poorly understood aspect of sensory processing is the role of active sensing, the use of self-motion such as eye or head movements to focus sensing resources on the most rewarding or informative aspects of the sensory environment. Here, we present behavioral data from a visual search experiment, as well as a Bayesian model of within-trial dynamics of sensory processing and eye movements. Within this Bayes-optimal inference and control framework, which we call C-DAC (Context-Dependent Active Controller, various types of behavioral costs, such as temporal delay, response error, and sensor repositioning cost, are explicitly minimized. This contrasts with previously proposed algorithms that optimize abstract statistical objectives such as anticipated information gain (Infomax (Butko and Movellan, 2010 and one-step look-ahead accuracy (greedy MAP (Najemnik and Geisler, 2005. We find that C-DAC captures human visual search dynamics better than previous models, in particular a certain form of “confirmation bias” apparent in the way human subjects utilize prior knowledge about the spatial distribution of the search target to improve search speed and accuracy. We also examine several computationally efficient approximations to C-DAC that may present biologically more plausible accounts of the neural computations underlying active sensing, as well as practical tools for solving active sensing problems in engineering applications. To summarize, this paper makes several key contributions: human visual search behavioral data, a context-sensitive Bayesian active sensing model, a comparative study between different models of human active sensing, and a family of efficient approximations to the optimal model.

  11. Fine-grained policy control in U.S. Army Research Laboratory (ARL) multimodal signatures database

    Science.gov (United States)

    Bennett, Kelly; Grueneberg, Keith; Wood, David; Calo, Seraphin

    2014-06-01

    The U.S. Army Research Laboratory (ARL) Multimodal Signatures Database (MMSDB) consists of a number of colocated relational databases representing a collection of data from various sensors. Role-based access to this data is granted to external organizations such as DoD contractors and other government agencies through a client Web portal. In the current MMSDB system, access control is only at the database and firewall level. In order to offer finer grained security, changes to existing user profile schemas and authentication mechanisms are usually needed. In this paper, we describe a software middleware architecture and implementation that allows fine-grained access control to the MMSDB at a dataset, table, and row level. Result sets from MMSDB queries issued in the client portal are filtered with the use of a policy enforcement proxy, with minimal changes to the existing client software and database. Before resulting data is returned to the client, policies are evaluated to determine if the user or role is authorized to access the data. Policies can be authored to filter data at the row, table or column level of a result set. The system uses various technologies developed in the International Technology Alliance in Network and Information Science (ITA) for policy-controlled information sharing and dissemination1. Use of the Policy Management Library provides a mechanism for the management and evaluation of policies to support finer grained access to the data in the MMSDB system. The GaianDB is a policy-enabled, federated database that acts as a proxy between the client application and the MMSDB system.

  12. Top 10% Admissions in the Borderlands: Access and Success of Borderland Top Students at Texas Public Universities

    Science.gov (United States)

    Rodríguez, Cristóbal

    2016-01-01

    This study focuses on Texas Borderland students admitted through the Texas Top 10% admissions policy, which assumes that Top 10% students are college ready for any public university and provides Top 10% high school graduates automatic admission to any 4-year public university in Texas. Using descriptive and inferential statistics, results…

  13. Economic policies for tobacco control in developing countries.

    Science.gov (United States)

    Ross, H; Chaloupka, F J

    2006-01-01

    Raising tobacco taxes can have an income distributional impact on the population. Since lower socio-economic groups usually smoke more, they also contribute more to total cigarette tax collection. Thus, those who can afford it least contribute the most in terms of tobacco taxes. This means that tobacco taxes are regressive. However, tobacco tax increases are likely to be progressive, decreasing the relative tax incidence on the poor, vis-à-vis the rich. This is based on the premise that the poor are likely to be more sensitive to price changes, and would thus reduce their cigarette consumption by a greater percentage than the rich in response to an excise tax-induced increase in cigarette prices. Recent empirical studies confirm this hypothesis by demonstrating that the price responsiveness of cigarette demand increases with income. Research in China confirmed that reducing cigarette expenditures could release household resources for spending on food, housing, and other goods that improve living standards. Therefore, in the long run, tobacco control measures will reduce social inequality. PMID:17684673

  14. Admission to selective schools, alphabetically

    Czech Academy of Sciences Publication Activity Database

    Jurajda, Štěpán; Münich, Daniel

    Praha: Česká společnost ekonomická, 2006, s. 1-29. [Výroční konference České společnosti ekonomické /4./. Praha (CZ), 25.11.2006] R&D Projects: GA ČR GA403/03/0340 Institutional research plan: CEZ:AV0Z70850503 Keywords : admission chances * schools * alphabet ical listing Subject RIV: AH - Economics

  15. Development and Introduction of a Comprehensive Tobacco Control Policy in a Canadian Regional Health Authority

    Directory of Open Access Journals (Sweden)

    Diane Kunyk, RN, MN

    2007-04-01

    Full Text Available BackgroundTobacco control policies in health care settings are necessary to protect patients, employees, physicians, visitors, and volunteers from the dangers of secondhand smoke. This report documents the process of developing and introducing a comprehensive tobacco control policy in one Canadian regional health authority.ContextCapital Health (CH, a health authority that has 30,000 employees and serves 1.6 million people, is responsible for 18 hospitals and primary care facilities, 33 continuing care facilities, 29 public health locations, and 9 community care facilities. CH recently determined that it needed to revise its tobacco control policy because its facilities had different directives regarding tobacco use, some of which did not reflect the best current knowledge about the health risks associated with exposure to secondhand smoke. MethodsThe new smoke-free policy needed to be developed and executed within a narrow time frame, which required careful planning as well as the support of patients and CH staff members. An essential part of the new policy was the prevention of nicotine withdrawal among people required to undergo involuntary tobacco abstinence. The plan also included an integrated screening, intervention, and referral process designed to optimize health benefits for patients and staff members who smoked, as well as for those who did not. ConsequencesCH decided to close all smoking rooms (including those in psychiatry, palliative care, geriatrics, eating disorder, and tuberculosis units, to ban smoking in outdoor areas, to stop all sales of tobacco products in CH facilities, to require smoke-free environments during home visitations, and to reject funding from the tobacco industry.InterpretationBy implementing a consistent ban on indoor and outdoor smoking, CH is contributing to a comprehensive tobacco control policy that is arguably a regional health authority’s most profound opportunity for health promotion.

  16. Health policymakers’ knowledge and opinions of physicians smoking and tobacco policy control in Lao PDR

    Directory of Open Access Journals (Sweden)

    Sychareun Vanphanom

    2012-09-01

    Full Text Available Abstract Background In 2007, a regulation on smoke-free health facilities and institutions was adopted by the Lao government. Little is known about health policymakers’ knowledge and opinions regarding tobacco policy control, including physicians’ behaviour. This paper aims to describe the knowledge of Lao health policymakers and their opinions regarding physicians tobacco use and national smoking policy control. Methods In 2007, we made a qualitative explorative study with data from a purposive sample of 18 key informants through semi-structured, face-to-face interviews. The key informants, who were heads of departments, directors of hospitals and directors of centres, mainly worked at the national level, and some provincial levels. Content analysis was used. Results Policymakers perceived the inadequate implementation of a smoke-free regulation and policy as being a barrier and that the general public may not accept physicians smoking, since they are regarded as role models. Most of the respondents mentioned that regulations or laws related to control of smoking in health institutions are available in Laos, but they lacked detailed knowledge of them probably because regulations as well as the smoke-free policy documents were not widely disseminated. The respondents agreed that anti-smoking education should be integrated in the training curricula, especially in the medical schools, and that the provision of counselling on health consequences from smoking and methods of smoking cessation was important. Conclusion This study contributes to tobacco policy evidence and to knowledge regarding factors related to the uptake of evidence into policymaking. Dissemination and implementation of a tobacco control policy nationally, and integration of tobacco cessation training programs in the curricula were found to be productive approaches for improvement.

  17. AIDS Research and Its Role in China's AIDS Prevention and Control Policies

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    By the end of 2005, the estimated number of HIV infected people in China was 650,000. The seriousness of the epidemic calls for effective control measures to tackle the problems in order to avoid the tragedy in Africa from happening in China. "Prevention First" is the cornerstone of the country's health policy. On 2003 World AIDS Day, Premier Jiabao Wen announced a new national AIDS control policy, "Four Frees and One Care". This policy clearly shows that the Chinese government has once again taken full responsibility to solve public health problems and has profound impact far beyond the AIDS field. In early 2006, the central government put scientific and technology innovation as a national priority and set the target to build an innovative China by year 2020. Since then, the government has been increasing investment in science and technology with major emphasis on both infectious diseases control and new drug research and development. For the first time, development of 100 new drugs and control of major infectious diseases (AIDS, HBV, TB and other emerging infectious diseases) have been selected as national key scientific projects. China's best minds in related fields will be pooled to work together in order to remove the technical barriers blocking efficient control of the major infectious disease in China. Knowledge on molecular epidemiology, immunology, pathogenesis, HAART, as well as HIVDR strains will certainly provide urgently needed scientific information for China's AIDS control program. Only evidence-based strategy from good research will provide long-term effective control of AIDS.

  18. FreeBSD Mandatory Access Control Usage for Implementing Enterprise Security Policies

    OpenAIRE

    Bolshakov, Kirill; Reshetova, Elena

    2007-01-01

    FreeBSD was one of the first widely deployed free operating systems to provide mandatory access control. It supports a number of classic MAC models. This tutorial paper addresses exploiting this implementation to enforce typical enterprise security policies of varying complexities.

  19. Community-Based School Finance and Accountability: A New Era for Local Control in Education Policy?

    Science.gov (United States)

    Vasquez Heilig, Julian; Ward, Derrick R.; Weisman, Eric; Cole, Heather

    2014-01-01

    Top-down accountability policies have arguably had very limited impact over the past 20 years. Education stakeholders are now contemplating new forms of bottom-up accountability. In 2013, policymakers in California enacted a community-based approach that creates the Local Control Funding Formula (LCFF) process for school finance to increase…

  20. Association of School Nutrition Policy and Parental Control with Childhood Overweight

    Science.gov (United States)

    Seo, Dong-Chul; Lee, Chung Gun

    2012-01-01

    Background: Schools and parents may play important roles in preventing childhood obesity by affecting children's behaviors related to energy balance. This study examined how school nutrition policy and parental control over children's eating and physical activity habits are associated with the children's overweight/obesity…

  1. A policy iteration approach to online optimal control of continuous-time constrained-input systems.

    Science.gov (United States)

    Modares, Hamidreza; Naghibi Sistani, Mohammad-Bagher; Lewis, Frank L

    2013-09-01

    This paper is an effort towards developing an online learning algorithm to find the optimal control solution for continuous-time (CT) systems subject to input constraints. The proposed method is based on the policy iteration (PI) technique which has recently evolved as a major technique for solving optimal control problems. Although a number of online PI algorithms have been developed for CT systems, none of them take into account the input constraints caused by actuator saturation. In practice, however, ignoring these constraints leads to performance degradation or even system instability. In this paper, to deal with the input constraints, a suitable nonquadratic functional is employed to encode the constraints into the optimization formulation. Then, the proposed PI algorithm is implemented on an actor-critic structure to solve the Hamilton-Jacobi-Bellman (HJB) equation associated with this nonquadratic cost functional in an online fashion. That is, two coupled neural network (NN) approximators, namely an actor and a critic are tuned online and simultaneously for approximating the associated HJB solution and computing the optimal control policy. The critic is used to evaluate the cost associated with the current policy, while the actor is used to find an improved policy based on information provided by the critic. Convergence to a close approximation of the HJB solution as well as stability of the proposed feedback control law are shown. Simulation results of the proposed method on a nonlinear CT system illustrate the effectiveness of the proposed approach. PMID:23706414

  2. Combining Correlation-Based and Reward-Based Learning in Neural Control for Policy Improvement

    DEFF Research Database (Denmark)

    Manoonpong, Poramate; Kolodziejski, Christoph; Wörgötter, Florentin;

    2013-01-01

    associations. Based on these biological findings, we propose a new learning model to achieve successful control policies for artificial systems. This model combines correlation-based learning using input correlation learning (ICO learning) and reward-based learning using continuous actor–critic reinforcement...

  3. Soviet Education Policy 1917-1935: From Ideology to Bureaucratic Control.

    Science.gov (United States)

    Lauglo, Jon

    1988-01-01

    Examining early Soviet educational policy, Lauglo analyzes the initial expression of Marxist humanist values, popular participation, and the value of productive work for general education. Discusses the routinization into a Stalinist pattern of bureaucratically controlled utilitarianism and comments briefly on recent indications of change in…

  4. Off-Policy Actor-Critic Structure for Optimal Control of Unknown Systems With Disturbances.

    Science.gov (United States)

    Song, Ruizhuo; Lewis, Frank L; Wei, Qinglai; Zhang, Huaguang

    2016-05-01

    An optimal control method is developed for unknown continuous-time systems with unknown disturbances in this paper. The integral reinforcement learning (IRL) algorithm is presented to obtain the iterative control. Off-policy learning is used to allow the dynamics to be completely unknown. Neural networks are used to construct critic and action networks. It is shown that if there are unknown disturbances, off-policy IRL may not converge or may be biased. For reducing the influence of unknown disturbances, a disturbances compensation controller is added. It is proven that the weight errors are uniformly ultimately bounded based on Lyapunov techniques. Convergence of the Hamiltonian function is also proven. The simulation study demonstrates the effectiveness of the proposed optimal control method for unknown systems with disturbances. PMID:25935054

  5. Quasi-regulation and principal-agent relationships: secondary school admissions in London, England

    OpenAIRE

    West, Anne; Pennell, Hazel; Hind, Audrey

    2009-01-01

    Market-oriented reforms and school choice policies have had a high political profile in a number of developed countries. This article examines the issue of school choice through the lens of the English market-oriented reforms; it focuses on the quasi-regulation and regulation of admissions to publicly funded secondary schools. It examines admissions to state-maintained secondary schools in London in terms of the criteria and practices used in the event of there being more applicants than plac...

  6. Strategic Interaction and Spatial Multiplier Effects in Local Growth Control Policies: The California Housing Market

    OpenAIRE

    Waldorf, Brigitte S.; Byun, Pillsung; Florax, Raymond J.G.M.

    2005-01-01

    Since the 1970s, growth controls spread across many metropolitan regions in the United States. Several studies address the effects of local growth controls on housing markets, particularly its price effect, which is induced by rising construction cost, constrained housing supply, improved amenities, and market reorientation of homebuilders. However, only few studies explicitly address inter-jurisdictional spatial spillovers and strategic interaction of policy-makers of different jurisdictions...

  7. Racism, gun ownership and gun control:biased attitudes in US whites may influence policy decisions

    OpenAIRE

    Kerry O'Brien; Walter Forrest; Dermot Lynott; Michael Daly

    2013-01-01

    OBJECTIVE: Racism is related to policies preferences and behaviors that adversely affect blacks and appear related to a fear of blacks (e.g., increased policing, death penalty). This study examined whether racism is also related to gun ownership and opposition to gun controls in US whites. METHOD: The most recent data from the American National Election Study, a large representative US sample, was used to test relationships between racism, gun ownership, and opposition to gun control in US wh...

  8. Racism, Gun Ownership and Gun Control: Biased Attitudes in US Whites May Influence Policy Decisions

    OpenAIRE

    O'Brien, Kerry S.; Forrest, Walter; Lynott, Dermot; Daly, Michael

    2013-01-01

    Objective Racism is related to policies preferences and behaviors that adversely affect blacks and appear related to a fear of blacks (e.g., increased policing, death penalty). This study examined whether racism is also related to gun ownership and opposition to gun controls in US whites. Method The most recent data from the American National Election Study, a large representative US sample, was used to test relationships between racism, gun ownership, and opposition to gun control in US whit...

  9. Alternate solutions in mixing energy tax/subsidy and emission control policies

    OpenAIRE

    Heydari, Shahriar Shah; Vestergaard, Niels

    2015-01-01

    In this article, we look at the combination of several market-based climate and energy policies and compare them with first best solution, i.e., a perfectly designed emission tax or emission cap level. It is shown that in the case an emission control policy is imperfect designed or implemented, its per-formance can be improved by an energy (output) tax/subsidy scheme, where the subsidy is given only to renewable generators or for energy efficiency improvements. This combination can bring the ...

  10. FISCAL POLICY OF THE REPUBLIC OF MOLDOVA: ACHIEVEMENTS OF THE FISCAL CONTROL AND ENTITY BEHAVIOR

    Directory of Open Access Journals (Sweden)

    Olimpiu GHERMAN

    2015-12-01

    Full Text Available It is an actual theme, determined by achievements of tax control in Moldova and its impact on the behaviour of the entity as important elements of fiscal policy. There are examined different methods for differentiating the problem, supplemented by deduction, induction, synthesis, analysis of defining phenomena of fiscal policy and its elements. The methodology used in this study is based on assessments of the theory, studies and interpretations of specialized literature and analyzes the practical activities specific for taxation at national, European and international levels, depending on which some opinions, conclusions and proposals were founded and formulated, to minimize the impact of tax evasion and fraud.

  11. Domestic politics, citizen activism, and U.S. nuclear arms control policy

    International Nuclear Information System (INIS)

    The author seeks to ascertain whether and how citizens' movements concerning nuclear arms control and disarmament affect US arms control policy. The author employs a comparative case study methodology. He examines cases of the Eisenhower and Kennedy Administrations during the period of protest against nuclear testing, and the Reagan Administration during the nuclear weapons freeze campaign and the subsequent campaign for a comprehensive test ban. He hows there are four mechanisms through which public advocacy efforts can influence arms control policy, identifies the conditions under which each can be effective, and details the type of impact each mechanism has. Domestic activism interacts with broader public opinion in a way that creates electoral pressure; with elite-level debates in a way that removes a consensus behind presidential policy or changes the winning coalition in Congress; with bureaucratic politics, by generating ideas that have utility for some agents within the Executive; or with the public diplomacy of foreign governments, especially the Soviet Union. Citizens' movements had an impact on policy in each of the cases studied. The type and extent of impact, and the mechanisms involved in giving activism influence, are different for each case

  12. Tobacco control policy in France: from war to compromise and collaboration

    Directory of Open Access Journals (Sweden)

    Alain Braillon

    2012-09-01

    Full Text Available BACKGROUND: Absence of an effective tobacco control policy costs lives and tobacco prevention is policy-sensitive. We describe the historical record of tobacco control in France. METHODS: Public policies and main decisions (laws, regulations, health plans for tobacco control were considered from 1950 to 2010. Data for cigarette sales and relative price of cigarettes were obtained from official databases. Sales are expressed in number of cigarettes. The relative price of cigarettes is the nominal price divided by the Consumer Price Index. RESULTS: The first step Veil Law (1976 blunted the steady increase in cigarette sales observed since World War II. The second period began with the Evin Law (1991. This law banned tobacco advertising and withdrew tobacco from the Consumer Price Index allowing for marked and repeated increases in taxes. Sales decreased over the next 6 years, from 97.1 billion to 83.0 billion in 1997 but then remained steady for 5 years (83.5 billion in 2001. The first Cancer Plan (2003 imposed three tax increases in a year (39% increase in price. Cigarette sales decreased to 54.9 billion in 2004. This period ended in 2004 when a moratorium on tobacco taxes was announced. The policies which have been implemented since President Sarkozy was elected in 2007 were flawed and protected the interests of the tobacco industry: prevalence of smoking is now increasing, mainly among the younger generation. Since 1991, the cigarette market has nearly halved but the decline has been a stop-and-go erratic process. The two 5-year periods (1997-2002 and 2005 -2010 during which consumption leveled off seem to demonstrate that government-driven health policies could have been influenced by commercial interests. CONCLUSION: Tobacco control efforts, especially tobacco tax increases, need to be sustained and shielded from the influence of the tobacco industry.

  13. The status and future challenges of tobacco control policy in Korea.

    Science.gov (United States)

    Cho, Hong-Jun

    2014-05-01

    Tobacco use is the most important preventable risk factor for premature death. The World Health Organization (WHO) Framework Convention on Tobacco Control (FCTC), the first international public health treaty, came into force in 2005. This paper reviews the present status of tobacco control policies in Korea according to the WHO FCTC recommendations. In Korea, cigarette use is high among adult males (48.2% in 2010), and cigarette prices are the lowest among the Organization for Economic Cooperation and Development countries with no tax increases since 2004. Smoke-free policies have shown incremental progress since 1995, but smoking is still permitted in many indoor public places. More than 30% of non-smoking adults and adolescents are exposed to second-hand smoke. Public education on the harmful effects of tobacco is currently insufficient and the current policies have not been adequately evaluated. There is no comprehensive ban on tobacco advertising, promotion, or sponsorship in Korea. Cigarette packages have text health warnings on only 30% of the main packaging area, and misleading terms such as "mild" and "light" are permitted. There are nationwide smoking cessation clinics and a Quitline service, but cessation services are not covered by public insurance schemes and there are no national treatment guidelines. The sale of tobacco to minors is prohibited by law, but is poorly enforced. The socioeconomic inequality of smoking prevalence has widened, although the government considers inequality reduction to be a national goal. The tobacco control policies in Korea have faltered recently and priority should be given to the development of comprehensive tobacco control policies. PMID:24921015

  14. Effects of Fiscal and Monetary Policies on the Iranian Economy: An Optimal Control Approach

    Directory of Open Access Journals (Sweden)

    Fojan Tadyon

    2011-01-01

    Full Text Available This paper evaluates the interacted effects of the fiscal and monetary policies on the nominal and real macro-variables of the Iranian economy. Our analysis is thus based on the optimal control theory by which the optimal path of the control variables including monetary and fiscal tools are determined over the period 1963-2006. We also use a macro-econometric model in form of a simultaneous equation system to investigate interaction between both real and money (nominal sectors. Due to the importance of the foreign sector in the country economic development, several scenarios have been conducted particularly on imports. The empirical results indicate that a focus simultaneously on both monetary and fiscal policies should cause an optimal control of the objective variables to reach approximately their appropriate values. This would be happened as a result of a productive relationship between the government and the central bank

  15. 32 CFR 643.35 - Policy-Mineral leasing on lands controlled by the Department of the Army.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 4 2010-07-01 2010-07-01 true Policy-Mineral leasing on lands controlled by the... OF THE ARMY (CONTINUED) REAL PROPERTY REAL ESTATE Policy § 643.35 Policy—Mineral leasing on lands controlled by the Department of the Army. (a) Acquired lands—(1) General. The Coal Leasing Amendments Act...

  16. 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

  17. 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

  18. Institutional Control Policies and Implementation for the Area 5 and Area 3 Radioactive Waste Management Sites

    International Nuclear Information System (INIS)

    The U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) has implemented varying institutional control policies in performance assessment/composite analysis (PA/CA) calculations for the Area 5 and Area 3 Radioactive Waste Management Sites (RWMSs) (Shott et al., 1998; 2000; Bechtel Nevada [BN] and Neptune and Company Inc. [Neptune], 2006). The facilities are within the actively maintained boundaries of the Nevada Test Site (NTS) that are enforced by NNSA/NSO. Under current policies, access required for exposure of the member of public (MOP) or the inadvertent human intruder (IHI) is prohibited. Uncertainties affecting institutional control policies are the duration and effectiveness of the controls during the post-closure period. Implementing a uniform set of institutional control policies for the RWMSs that encompasses waste management and environmental restoration programs and is consistent with the end-state vision for the environmental management programs for the NTS (DOE, 2006) is a primary goal of the maintenance program. The NNSA/NSO Performance Management Plan (DOE, 2002) complies with DOE Policy P455.1, 'Use of Risk-Based End States' (DOE, 2003a). Expected future land uses are a driver in selecting acceptable end state conditions and clean-up goals for the NTS. NNSA/NSO Environmental Management's (EM's) land management assumptions and framework for Environmental Management activities are as follows: The NTS will remain under federal control in perpetuity as an NNSA test site, and the large buffer zone surrounding the NTS (the Nevada Test and Training Range) is assumed to remain under the control of the U.S. Air Force. There are no plans for transfer of any NTS lands to other agencies or public entities. Access will continue to be restricted to the NTS and the surrounding areas. For management purposes, NNSA/NV EM activities have been established based on the source of contamination and type of waste

  19. Patient Admission Preferences and Perceptions

    Science.gov (United States)

    Wu, Clayton; Melnikow, Joy; Dinh, Tu; Holmes, James F.; Gaona, Samuel D.; Bottyan, Thomas; Paterniti, Debora; Nishijima, Daniel K.

    2015-01-01

    Introduction Understanding patient perceptions and preferences of hospital care is important to improve patients’ hospitalization experiences and satisfaction. The objective of this study was to investigate patient preferences and perceptions of hospital care, specifically differences between intensive care unit (ICU) and hospital floor admissions. Methods This was a cross-sectional survey of emergency department (ED) patients who were presented with a hypothetical scenario of a patient with mild traumatic brain injury (TBI). We surveyed their preferences and perceptions of hospital care related to this scenario. A closed-ended questionnaire provided quantitative data on patient preferences and perceptions of hospital care and an open-ended questionnaire evaluated factors that may not have been captured with the closed-ended questionnaire. Results Out of 302 study patients, the ability for family and friends to visit (83%), nurse availability (80%), and physician availability (79%) were the factors most commonly rated “very important,” while the cost of hospitalization (62%) and length of hospitalization (59%) were the factors least commonly rated “very important.” When asked to choose between the ICU and the floor if they were the patient in the scenario, 33 patients (10.9%) choose the ICU, 133 chose the floor (44.0%), and 136 (45.0%) had no preference. Conclusion Based on a hypothetical scenario of mild TBI, the majority of patients preferred admission to the floor or had no preference compared to admission to the ICU. Humanistic factors such as the availability of doctors and nurses and the ability to interact with family appear to have a greater priority than systematic factors of hospitalization, such as length and cost of hospitalization or length of time in the ED waiting for an in-patient bed. PMID:26587095

  20. 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.

  1. Costs associated with implementation of a strict policy for controlling spread of highly resistant microorganisms in France

    Science.gov (United States)

    Birgand, Gabriel; Leroy, Christophe; Nerome, Simone; Luong Nguyen, Liem Binh; Lolom, Isabelle; Armand-Lefevre, Laurence; Ciotti, Céline; Lecorre, Bertrand; Marcade, Géraldine; Fihman, Vincent; Nicolas-Chanoine, Marie-Hélène; Pelat, Camille; Perozziello, Anne; Fantin, Bruno; Yazdanpanah, Yazdan; Ricard, Jean-Damien; Lucet, Jean-Christophe

    2016-01-01

    Objective To assess costs associated with implementation of a strict ‘search and isolate’ strategy for controlling highly drug-resistant organisms (HDRO). Design Review of data from 2-year prospective surveillance (01/2012 to 12/2013) of HDRO. Setting Three university hospitals located in northern Paris. Methods Episodes were defined as single cases or outbreaks of glycopeptide-resistant enterococci (GRE) or carbapenemase-producing Enterobacteriacae (CPE) colonisation. Costs were related to staff reinforcement, costs of screening cultures, contact precautions and interruption of new admissions. Univariate analysis, along with simple and multiple linear regression analyses, was conducted to determine variables associated with cost of HDRO management. Results Overall, 41 consecutive episodes were included, 28 single cases and 13 outbreaks. The cost (mean±SD) associated with management of a single case identified within and/or 48 h after admission was €4443±11 552 and €11 445±15 743, respectively (p<0.01). In an outbreak, the total cost varied from €14 864 ±17 734 for an episode with one secondary case (€7432±8867 per case) to €136 525 ±151 231 (€12 845±5129 per case) when more than one secondary case occurred. In episodes of single cases, contact precautions and microbiological analyses represented 51% and 30% of overall cost, respectively. In outbreaks, cost related to interruption of new admissions represented 77–94% of total costs, and had the greatest financial impact (R2=0.98, p<0.01). Conclusions In HDRO episodes occurring at three university hospitals, interruption of new admissions constituted the most costly measure in an outbreak situation. PMID:26826145

  2. Tobacco control policies and perinatal health: a national quasi-experimental study.

    Science.gov (United States)

    Peelen, Myrthe J; Sheikh, Aziz; Kok, Marjolein; Hajenius, Petra; Zimmermann, Luc J; Kramer, Boris W; Hukkelhoven, Chantal W; Reiss, Irwin K; Mol, Ben W; Been, Jasper V

    2016-01-01

    We investigated whether changes in perinatal outcomes occurred following introduction of key tobacco control policies in the Netherlands: smoke-free legislation in workplaces plus a tobacco tax increase and mass media campaign (January-February 2004); and extension of the smoke-free law to the hospitality industry, accompanied by another tax increase and mass media campaign (July 2008). This was a national quasi-experimental study using Netherlands Perinatal Registry data (2000-2011; registration: ClinicalTrials.gov NCT02189265). Primary outcome measures were: perinatal mortality, preterm birth, and being small-for-gestational age (SGA). The association with timing of the tobacco control policies was investigated using interrupted time series logistic regression analyses with adjustment for confounders. Among 2,069,695 singleton births, there were 13,027 (0.6%) perinatal deaths, 116,043 (5.6%) preterm live-births and 187,966 (9.1%) SGA live-births. The 2004 policies were not associated with significant changes in the odds of developing any of the primary outcomes. After the 2008 policy change, a -4.4% (95% CI -2.4; -6.4, p law to bars and restaurants in conjunction with a tax increase and mass media campaign. PMID:27103591

  3. [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

  4. Coalition Warfare Program (CWP): secure policy controlled information query and dissemination over a Bices network

    Science.gov (United States)

    Toth, Andrew; Pham, Tien; Karr, Todd; Bent, Graham; Harries, Dominic; Knox, Alan

    2013-05-01

    In 2006, the US Army Research Laboratory (ARL) and the UK Ministry of Defence (MoD) established a collaborative research alliance with academia and industry, called the International Technology Alliance (ITA) to address fundamental issues concerning Network and Information Sciences. Under the ITA research program, a US-UK transition project on "ITA Policy Controlled Information Query and Dissemination" was funded in 2011 by OSD's Coalition Warfare Program (CWP). The goal of this CWP project is to develop an extensible capability of performing distributed federated query and information dissemination across a coalition network of distributed disparate data/information sources with access­ controlled policies. The CWP project is lead by US Army Research Laboratory (ARL) and UK Defence Science Technology Laboratory (Dstl) with software development by IBM UK and IBM US. The CWP project exploits two key technology components developed within the ITA, namely the Gaian Database and integrated Access Policy Decision and Enforcement mechanisms. The Gaian Database (GaianDB) is a Dynamic Distributed Federated Database (DDFD) that addresses a need to share information among coalition members by providing a means for policy-controlled access to data across a network of heterogeneous data sources. GaianDB implements a SQL-compliant Store-Locally-Query-Anywhere (SLQA) approach providing software applications with global access to data from any node in the database network via standard SQL queries. Security policy is stored locally and enforced at the database node level, reducing potential for unauthorized data access and waste of network bandwidth. A key metric of success for a CWP project is the transition of coalition-related technology from TRL-3 or 4 to TRL-6 or higher. Thus, the end goal of this CWP project was to demonstrate the GaianDB and policy technology within an operational environment at the NATO Intelligence Fusion Centre (NIFC) at Molesworth RAF. An initial

  5. Experience with a sustained policy of radiation exposure control and research in a medical center

    International Nuclear Information System (INIS)

    The development of a radiation protection policy and its implementation over a 27-yr period are described. Radiation uses included radionuclides and radiation generators for diagnosis, treatment and research. The original policy has been successfully applied and personnel radiation exposure has been controlled despite increasing radiation uses. The program included research and development on measurement and reduction of staff and patient exposure; the development of ionization chambers for different diagnostic energy ranges, including mammographic; a special 'flat' chamber for high energy therapy installation surveys; and the design of phantoms. A record of over 95% of the 'exposed population' with exposures below 0.5 rem/yr has been achieved, with maximum exposures substantially less than 2.0 rem. At the same time new procedures of improved quality have developed for uses of radiation. The achievement of radiation control has facilitated rather than inhibited medical uses of radiation. (author)

  6. Computing a constrained control policy for a single-server queueing system

    DEFF Research Database (Denmark)

    Larsen, Christian

    We consider a single-server queueing system designed to serve homogeneous jobs. The jobs arrive to the system after a Poisson process and all processing times are deterministic. There is a set-up cost for starting up production and a holding cost rate is incurred for each job present. Also, there...... is a service cost per job, which is a convex function of the service time. The control policy specifies when the server is on or off. It also specifies the state-dependent processing times. In order to avoid a very detailed control policy (which could be hard to implement) we will only allow the...... server to use n different processing times. Hence, we must subdivide the infinite state space into n disjoint sets and for each set decide which processing time to use. We show how to derive a mathematical expression for the long-run average cost per time unit. We also present an algorithm to find the...

  7. Control policies for a water-treatment system using the Markov Decision Process.

    Science.gov (United States)

    Chiam, Tze; Mitchell, Cary; Yih, Yuehwern

    In order to build a decision-making tool for choosing a control policy from a set of predefined policies for a water-treatment system, a simulation was developed. This technology-independent simulation focuses on the functions of a simplified representation of the water system based on documentation by NASA in the Baseline Value and Assumption Documents (BVAD). The clean-water requirement (consumption) and dirty-water generation (production) are based on crewmember demographics, activity schedules, and intensity of each activity. The water system consists of hygiene and potable-water subsystems. The hygiene-water subsystem supplies water for purposes such as laundry, urinal flush, dish wash, oral hygiene, and shower. The potable-water subsystem supplies water for drinking and re-hydration of food. Due to a lack of stochastic property descriptions for a real-world system in the BVAD, stochastic variables are introduced in this research to reflect a more realistic system. These variables describe the magnitude of deviation of system variables from their theoretical values through predetermined statistical distributions. These variables include hygiene and potable-water-treatment efficiencies, amounts of hygiene and potable water consumed, and amount of dirty water produced following potable-water consumption. Conditions of the system occurring hourly result from the intricate interaction of crewmembers and the water system. The primary measure of the condition of the system is the "state" representation of the system, assessed at the beginning of every hour. Conditions of the system examined include the amount of clean water available for consumption, amount of overflow (in excess of storage capacity) of clean and dirty water, amount of hourly water deficiency, amount of accumulated water deficiency, etc. State transitions of the system based on these assessments are affected by the stochastic properties of the system described above. The transitions also depend on

  8. Alcohol control in the news: the politics of media representations of alcohol policy in South Africa.

    Science.gov (United States)

    Lawhon, Mary; Herrick, Clare

    2013-10-01

    Media coverage of the "problems" associated with alcohol is widespread in countries of the global North and now, increasingly, in those of the global South. However, despite this mounting ubiquity, there have been very few analyses either of newspaper coverage of alcohol or of media coverage of alcohol policy, especially outside Europe and North America. This article argues that given international concern with the long-term health, economic, social, and developmental consequences of risky drinking in the global South, an exploration of newspaper coverage of nascent alcohol policy in such a context is both timely and valuable. Indeed, such analyses bring to the fore the deeply contextual and contingent nature of alcohol's problematization in politics, policy, and public life. To examine these assertions, we explore the "attention allocation" processes of two South African alcohol control policies--the Western Cape Liquor Bill and the city of Cape Town's liquor bylaws--in two regional English-language newspapers between 2007 and 2011. In so doing, the article highlights the particularities of the political valence of alcohol in the South African context. Furthermore, it also draws out the tensions between alcohol as a source of livelihoods in a context of endemic unemployment and chronic poverty and alcohol as a causal factor in poverty, crime, violence, and social disintegration. In contrast to media coverage of alcohol policy in Europe and North America, this analysis of the South African press suggests that liquor consumption is far less likely to be framed as an express health risk, forcing us to question how preventative policy efforts should best proceed. PMID:23794743

  9. Lessons from an Evaluation of a Provincial-Level Smoking Control Policy in Shanghai, China

    OpenAIRE

    Li, Xiang; Gao, Junling; Zhang, Zhixing; Wei, Minqi; Zheng, Pinpin; Nehl, Eric J.; Wong, Frank Y.; Carla J. Berg

    2013-01-01

    Background The Shanghai Public Places Smoking Control Legislation was implemented in March 2010 as the first provincial-level legislation promoting smoke-free public places in China. Objective To evaluate the compliance with this policy as well as its impact on exposure to secondhand smoke (SHS), respiratory symptoms, and related attitudes among employees in five kinds of workplaces (schools, kindergartens, hospitals, hotels, and shopping malls). Methods A cross-sectional survey was conducted...

  10. A Cost-Effectiveness Tool for Informing Policies on Zika Virus Control

    OpenAIRE

    Alfaro-Murillo, Jorge A.; Alyssa S Parpia; Meagan C Fitzpatrick; Tamagnan, Jules A.; Medlock, Jan; Ndeffo-Mbah, Martial L.; Fish, Durland; Ávila-Agüero, María L.; Marín, Rodrigo; Ko, Albert I; Alison P Galvani

    2016-01-01

    Background As Zika virus continues to spread, decisions regarding resource allocations to control the outbreak underscore the need for a tool to weigh policies according to their cost and the health burden they could avert. For example, to combat the current Zika outbreak the US President requested the allocation of $1.8 billion from Congress in February 2016. Methodology/Principal Findings Illustrated through an interactive tool, we evaluated how the number of Zika cases averted, the period ...

  11. A Cost-Effectiveness Tool for Informing Policies on Zika Virus Control.

    OpenAIRE

    Alfaro-Murillo, Jorge A.; Alyssa S Parpia; Meagan C Fitzpatrick; Tamagnan, Jules A.; Jan Medlock; Ndeffo-Mbah, Martial L.; Durland Fish; Ávila-Agüero, María L.; Rodrigo Marín; Ko, Albert I; Alison P Galvani

    2016-01-01

    As Zika virus continues to spread, decisions regarding resource allocations to control the outbreak underscore the need for a tool to weigh policies according to their cost and the health burden they could avert. For example, to combat the current Zika outbreak the US President requested the allocation of $1.8 billion from Congress in February 2016.Illustrated through an interactive tool, we evaluated how the number of Zika cases averted, the period during pregnancy in which Zika infection po...

  12. Investigating the Price Control Policies on Innovation, Entrepreneurship and Economic Development

    OpenAIRE

    FEIZI, Amirabbas

    2015-01-01

    Abstract. The issue of government intervention in pricing has always been discussed by experts and economists, and various theories has been proposed by supporters of closed economy and opponents of government intervention in the pricing (open economy). Generally, the role of government has been very crucial in facing price control policies in the development of national in dustry and innovation, entrepreneurship and economic development or in destruction and lack of competitiveness of indust...

  13. Tobacco control policies and perinatal health: a national quasi-experimental study

    OpenAIRE

    Myrthe J. Peelen; Aziz Sheikh; Marjolein Kok; Petra Hajenius; Zimmermann, Luc J.; Kramer, Boris W.; Hukkelhoven, Chantal W.; Reiss, Irwin K.; Mol, Ben W; Been, Jasper V.

    2016-01-01

    We investigated whether changes in perinatal outcomes occurred following introduction of key tobacco control policies in the Netherlands: smoke-free legislation in workplaces plus a tobacco tax increase and mass media campaign (January-February 2004); and extension of the smoke-free law to the hospitality industry, accompanied by another tax increase and mass media campaign (July 2008). This was a national quasi-experimental study using Netherlands Perinatal Registry data (2000–2011; registra...

  14. Dynamic nonpoint-source pollution control policy: ambient transfers and uncertainty

    OpenAIRE

    Athanassoglou, Stergios

    2009-01-01

    When a regulator cannot observe or infer individual emissions, corrective policy must rely on ambient pollution data. Assuming this kind of environment, we study a class of differential games of pollution control with profit functions that are polynomial in the global pollution stock. Given an open-loop emissions strategy satisfying mild regularity conditions, an ambient transfer scheme is exhibited that induces it in Markov-perfect equilibrium (MPE). Proposed transfers are a polynomial fu...

  15. Public support for tobacco control policy extensions in Western Australia: a cross-sectional study

    OpenAIRE

    Rosenberg, Michael; Pettigrew, Simone; Wood, Lisa; Ferguson, Renee; Houghton, Stephen

    2012-01-01

    Objectives Policy makers seeking to introduce new tobacco control measures need to anticipate community support to assist them in planning appropriate implementation strategies. This study assessed community support for plain packaging and smoking bans in outdoor locations in Australia. Design Analytical cross-sectional survey. Setting and participants 2005 Western Australian adults participated in a computer-assisted telephone interview. Random household telephone numbers were used to obtain...

  16. Health Impact and Control Policy of Air Pollution in Shanxi, China

    OpenAIRE

    2013-01-01

    Facing the increasing environmental degradation locally and globally, the Chinese government sets mandatory goals of 10% reduction of SO2 emission and 20% reduction of energy intensity in its 11th Five-Year Plan period (FYP, 2006-2010). This study uses Shanxi Province to show the health effects of air pollution and health benefits resulting from various air pollution control scenarios in Shanxi province, illustrate how policies and measures have been implemented in practice in the province as...

  17. Racism, gun ownership and gun control: biased attitudes in US whites may influence policy decisions.

    Directory of Open Access Journals (Sweden)

    Kerry O'Brien

    Full Text Available OBJECTIVE: Racism is related to policies preferences and behaviors that adversely affect blacks and appear related to a fear of blacks (e.g., increased policing, death penalty. This study examined whether racism is also related to gun ownership and opposition to gun controls in US whites. METHOD: The most recent data from the American National Election Study, a large representative US sample, was used to test relationships between racism, gun ownership, and opposition to gun control in US whites. Explanatory variables known to be related to gun ownership and gun control opposition (i.e., age, gender, education, income, conservatism, anti-government sentiment, southern vs. other states, political identification were entered in logistic regression models, along with measures of racism, and the stereotype of blacks as violent. Outcome variables included; having a gun in the home, opposition to bans on handguns in the home, support for permits to carry concealed handguns. RESULTS: After accounting for all explanatory variables, logistic regressions found that for each 1 point increase in symbolic racism there was a 50% increase in the odds of having a gun at home. After also accounting for having a gun in the home, there was still a 28% increase in support for permits to carry concealed handguns, for each one point increase in symbolic racism. The relationship between symbolic racism and opposition to banning handguns in the home (OR1.27 CI 1.03,1.58 was reduced to non-significant after accounting for having a gun in the home (OR1.17 CI.94,1.46, which likely represents self-interest in retaining property (guns. CONCLUSIONS: Symbolic racism was related to having a gun in the home and opposition to gun control policies in US whites. The findings help explain US whites' paradoxical attitudes towards gun ownership and gun control. Such attitudes may adversely influence US gun control policy debates and decisions.

  18. Economic policy instruments for the control of air pollution in Poland

    International Nuclear Information System (INIS)

    The World Bank is analyzing the role of economic policy instruments for the control of air pollution in Poland, in cooperation with Polish and international experts. The first stage, covering Poland as a whole, was recently completed, jointly financed with the U.S. E.P.A. and the Government of the Netherlands. The second stage, now under way, will extend the analysis into a specific regional framework. Stage 2 is financed by the World Bank, the Polish Government, and the U.K. Environment Know-How Fund. Air Pollution in Poland is overwhelmingly caused by energy production and uses, due to the fact that the Polish economy depends heavily on coal and lignite. At present, vehicles contribute less to total emissions than do coal burning and industrial processes, although they account for 25-35% of nitrogen oxides, carbon monoxide, hydrocarbons and lead; and the concentrated in areas of high population density. The paper shows how economic, technical and meteorological modelling can be used, to reach conclusions about cost-effective strategies for the control of emissions and the improvement of ambient air quality. A simulation approach is presented, to compare alternative policy instruments, in terms of their impact on emissions and control costs for Poland as a whole. The main instruments considered are open-quotes command-and-controlclose quotes regimes (C ampersand C) and economic incentives, namely fuel taxes, emissions taxes and emissions trading. Next, the paper describes how the analysis is being extended, to link emissions with ambient air quality, using air dispersion modelling, based on a case study for Krakow. Finally, some conclusions are drawn on the importance of sound economic policies for air quality management, the costs of alternative standards, C ampersand C approaches versus economic incentives, a practical strategy to develop an effective role for emissions taxes and trading, and the regional differentiation of policy instruments

  19. Analysis of Control Policies and Dynamic Response of a Q-Car 2-DOF Semi Active System

    Directory of Open Access Journals (Sweden)

    S.I. Ihsan

    2008-01-01

    Full Text Available Several control policies of Q-car 2-DOF semiactive system, namely skyhook, groundhook and hybrid controls are presented. Their ride comfort, suspension displacement and road-holding performances are analyzed and compared with passive system. The analysis covers both transient and steady state responses in time domain and transmissibility response in frequency domain. The results show that the hybrid control policy yields better comfort than a passive suspension, without reducing the road-holding quality or increasing the suspension displacement for typical passenger cars. The hybrid control policy is also shown to be a better compromise between comfort, road-holding and suspension displacement than the skyhook and groundhook control policies.

  20. [Women and smoking. A challenge for the tobacco control policy in Germany].

    Science.gov (United States)

    Fleitmann, S; Dohnke, B; Balke, K; Rustler, C; Sonntag, U

    2010-02-01

    In Germany, smoking rates among women have been slightly declining since 2003. However, smoking rates among young women and girls are high and are reaching the smoking rates of their male counterparts. Only about half of pregnant smokers below the age of 25 stop smoking. Women and girls with low education and low level jobs, those who are unemployed, as well as single parents have the highest smoking rates. The tobacco industry promotes smoking behavior of women and girls through marketing campaigns, thus, systematically counteracting smoking prevention activities. Within the framework of the annual conference 2008 of the Federal Drug Commissioner on the theme of "Women and Smoking", recommendations for a gender-specific tobacco control policy in Germany were developed. The main demands relate to the necessity of a targeted policy approach which takes into account the needs and life circumstances of women and girls, the development of integrated prevention programs for pregnant women, improved medical and preventive care, the involvement of women from the media and culture, from health professions and politics to promote a smoke-free culture, gender-specific research, and the improvement of tobacco control legislation. FACT (Frauen aktiv contra Tabak e.V.) actively supports the implementation of these policy recommendations. PMID:20069267

  1. Can “Feature” be used to Model the Changing Access Control Policies?

    Directory of Open Access Journals (Sweden)

    K.Shantha Kumari

    2012-11-01

    Full Text Available Access control policies [ACPs] regulate the access to data and resources in information systems. These ACPs are framed from the functional requirements and the Organizational security & privacy policies. It was found to be beneficial, when the ACPs are included in the early phases of the software development leading to secure development of information systems. Many approaches are available for including the ACPs in requirements and design phase. They relied on UML artifacts, Aspects and also Feature for this purpose. But the earlier modeling approaches are limited in expressing the evolving ACPs due to organizational policy changes and business process modifications. In this paper, we analyze, whether “Feature”- defined as an increment in program functionality can be used as a modeling entity to represent the Evolving Access control requirements. We discuss the two prominent approaches that use Feature in modeling ACPs. Also we have a comparative analysis to find the suitability of Features in the context of changing ACPs. We conclude with our findings and provide directions for further research.

  2. Improving air pollution control policy in China--A perspective based on cost-benefit analysis.

    Science.gov (United States)

    Gao, Jinglei; Yuan, Zengwei; Liu, Xuewei; Xia, Xiaoming; Huang, Xianjin; Dong, Zhanfeng

    2016-02-01

    To mitigate serious air pollution, the State Council of China promulgated the Air Pollution Prevention and Control Action Plan in 2013. To verify the feasibility and validity of industrial energy-saving and emission-reduction policies in the action plan, we conducted a cost-benefit analysis of implementing these policies in 31 provinces for the period of 2013 to 2017. We also completed a scenario analysis in this study to assess the cost-effectiveness of different measures within the energy-saving and the emission-reduction policies individually. The data were derived from field surveys, statistical yearbooks, government documents, and published literatures. The results show that total cost and total benefit are 118.39 and 748.15 billion Yuan, respectively, and the estimated benefit-cost ratio is 6.32 in the S3 scenario. For all the scenarios, these policies are cost-effective and the eastern region has higher satisfactory values. Furthermore, the end-of-pipe scenario has greater emission reduction potential than energy-saving scenario. We also found that gross domestic product and population are significantly correlated with the benefit-cost ratio value through the regression analysis of selected possible influencing factors. The sensitivity analysis demonstrates that benefit-cost ratio value is more sensitive to unit emission-reduction cost, unit subsidy, growth rate of gross domestic product, and discount rate among all the parameters. Compared with other provinces, the benefit-cost ratios of Beijing and Tianjin are more sensitive to changes of unit subsidy than unit emission-reduction cost. These findings may have significant implications for improving China's air pollution prevention policy. PMID:26595398

  3. 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…

  4. 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…

  5. 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…

  6. Admissible Unbiased Quantizations: Distributions with Linear Components

    OpenAIRE

    Pötzelberger, Klaus

    2000-01-01

    We show that results on the characterization of admissible quantizations, which have been derived in Potzelberger [3], have to be modified in case the probability distribution has linear components. Furthermore, we provide an example, where the limit of optimal quantizations is not admissible. (author's abstract)

  7. Fundamental study of CO2 control technologies and policies in China

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The technical roadmap and policies for CO2 mitigation suitable for China are a common center of attention in the fields of energy, environment, and management science in the country. Emphasizing interaction between technical research and policy research, this work discovers the potential breakthrough in the integrated field. The technical difficulties of recovering CO2 are pointed out, the mechanism of combining CO2 recovery with energy conversion is investigated, and the basic principle for integrating an environmental-friendly energy system is discussed. Moreover, the formulation of a new energy system that can recover CO2 with very low or even zero energy penalty is proposed, while the assessment methodology and model system for the technical roadmap of CO2 emission control are developed. Finally, a new technical roadmap constructing an energy network suitable for China is proposed, which may provide a new way for the development of sustainable energy and environment technologies.

  8. Reliable Crop Identification with Satellite Imagery in the Context of Common Agriculture Policy Subsidy Control

    Directory of Open Access Journals (Sweden)

    Jonas Schmedtmann

    2015-07-01

    Full Text Available Agricultural subsidies in the context of the Common Agricultural Policy (CAP represent over 40% of the EU’s yearly budget. To ensure that funds are properly spent, farmers are controlled by National Control and Paying Agencies (NCPA using tools, such as computer-assisted photo interpretation (CAPI, which aims at identifying crops via remotely-sensed imagery. CAPI is time consuming and requires a large team of skilled photo interpreters. The objective of this study was to develop a reliable control system to partially replace CAPI for crop identification, with the overreaching goal of reducing control costs and completion time. Validated control data provided by the Portuguese Control and Paying Agency and an atmospherically-corrected Landsat ETM+ time series were used to perform parcel-based crop classification, leading to an accuracy of only 68% due to high similarity between crops’ spectral signatures. To address this problem, we propose an automatic control system (ACS that couples crop classification to a reliability requirement. This allows the decision-maker to set a reliability level, which restricts automatic crop identification to parcels that are classified with high certainty. While higher reliability levels reduce the risk of misclassifications, lower levels increase the proportion of automatic control decisions (ACP. With a reliability level of 80%, more than half of the parcels in our study area are automatically identified with an overall accuracy of 84%. In particular, this allows automatically controlling over 85% of all parcels classified as maize, rice, wheat or vineyard.

  9. The evolution of HIV policy in Vietnam: from punitive control measures to a more rights-based approach

    Directory of Open Access Journals (Sweden)

    Pham Nguyen Ha

    2010-08-01

    Full Text Available Aim: Policymaking in Vietnam has traditionally been the preserve of the political elite, not open to the scrutiny of those outside the Communist Party. This paper aims to analyse Vietnam's HIV policy development in order to describe and understand the policy content, policy-making processes, actors and obstacles to policy implementation. Methods: Nine policy documents on HIV were analysed and 17 key informant interviews were conducted in Hanoi and Quang Ninh Province, based on a predesigned interview guide. Framework analysis, a type of qualitative content analysis, was applied for data analysis. Results: Our main finding was that during the last two decades, developments in HIV policy in Vietnam were driven in a top-down way by the state organs, with support and resources coming from international agencies. Four major themes were identified: HIV policy content, the policy-making processes, the actors involved and human resources for policy implementation. Vietnam's HIV policy has evolved from one focused on punitive control measures to a more rights-based approach, encompassing harm reduction and payment of health insurance for medical costs of patients with HIV-related illness. Low salaries and staff reluctance to work with patients, many of whom are drug users and female sex workers, were described as the main barriers to low health staff motivation. Conclusion: Health policy analysis approaches can be applied in a traditional one party state and can demonstrate how similar policy changes take place, as those found in pluralistic societies, but through more top-down and somewhat hidden processes. Enhanced participation of other actors, like civil society in the policy process, is likely to contribute to policy formulation and implementation that meets the diverse needs and concerns of its population.

  10. Atmospheric pollutants and hospital admissions due to pneumonia in children

    Directory of Open Access Journals (Sweden)

    Juliana Negrisoli

    2013-12-01

    Full Text Available OBJECTIVE: To analyze the relationship between exposure to air pollutants and hospitalizations due to pneumonia in children of Sorocaba, São Paulo, Brazil. METHODS: Time series ecological study, from 2007 to 2008. Daily data were obtained from the State Environmental Agency for Pollution Control for particulate matter, nitric oxide, nitrogen dioxide, ozone, besides air temperature and relative humidity. The data concerning pneumonia admissions were collected in the public health system of Sorocaba. Correlations between the variables of interest using Pearson cofficient were calculated. Models with lags from zero to five days after exposure to pollutants were performed to analyze the association between the exposure to environmental pollutants and hospital admissions. The analysis used the generalized linear model of Poisson regression, being significant p<0.05. RESULTS: There were 1,825 admissions for pneumonia, with a daily mean of 2.5±2.1. There was a strong correlation between pollutants and hospital admissions, except for ozone. Regarding the Poisson regression analysis with the multi-pollutant model, only nitrogen dioxide was statistically significant in the same day (relative risk - RR=1.016, as well as particulate matter with a lag of four days (RR=1.009 after exposure to pollutants. CONCLUSIONS: There was an acute effect of exposure to nitrogen dioxide and a later effect of exposure to particulate matter on children hospitalizations for pneumonia in Sorocaba.

  11. A Review of the Economics of Controlling Diseases in Livestock and the Modelling of Control Policies

    OpenAIRE

    Murphy, Thomas

    1996-01-01

    International health organisations point to the need to improve the efficiency of prevention, control and eradication programs for animal diseases. In order to achieve this and justify national and international support it has become essential to apply techniques of economic analysis (Ellis, 1993). A review of the literature indicates that techniques of economic analysis such as cost benefit analysis and simulation modelling are commonly applied in assessment of disease control programs. It i...

  12. CONSOLIDATION POLICY: PAST, PRESENT AND FUTURE APPROACHES TO THE CONCEPT OF CONTROL

    Directory of Open Access Journals (Sweden)

    Ienciu Alin Ionel

    2010-07-01

    Full Text Available Preparing consolidated financial statements has been a common practice for groups of companies around the world for a relatively long time, going back one century in the USA and tens of years in different European countries.A far-reaching issue regarding consolidation accounting policy is the concept of control, as it holds a crucial role in determining the basis of consolidation and the applicable method of consolidation and subsequently in influencing the content of the group financial statements. We focus in our article on the concept of exclusive control as it is approached by the relevant International, American and European standards, casting light also on possible future developments of this concept. The objective of our study is to acknowledge the differences and similarities between the approaches to the control concept, closing with the presentation of the influences of these approaches on the basis of consolidation.

  13. National Parliamentary Control of EU Policy: The Challenge of Supranational Institutional Development

    DEFF Research Database (Denmark)

    Blom-Hansen, Jens; Olsen, Ingvild

    2015-01-01

    are likely to want to impose both police patrol and fire alarm control on the government. These arguments are investigated in the case of Denmark during the 50-year period since the first Danish application for EU membership in 1961, and considerable support is found for the authors’ hypotheses.......The history of the EU is characterised by rapid and complex institutional development. This leaves European Affairs Committees (EACs) in national parliaments with a moving target problem in their endeavours to control the government’s EU policies. This paper investigates how EACs react to this...... challenge. Building on the rational delegation literature, it is argued that EACs are likely to adapt control instruments in tandem with institutional changes at the supranational level. Using McCubbins and Schwartz (1984, American Journal of Political Science, 28, 165–179), it is further argued that EACs...

  14. 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...

  15. Adaptive optimal control of unknown constrained-input systems using policy iteration and neural networks.

    Science.gov (United States)

    Modares, Hamidreza; Lewis, Frank L; Naghibi-Sistani, Mohammad-Bagher

    2013-10-01

    This paper presents an online policy iteration (PI) algorithm to learn the continuous-time optimal control solution for unknown constrained-input systems. The proposed PI algorithm is implemented on an actor-critic structure where two neural networks (NNs) are tuned online and simultaneously to generate the optimal bounded control policy. The requirement of complete knowledge of the system dynamics is obviated by employing a novel NN identifier in conjunction with the actor and critic NNs. It is shown how the identifier weights estimation error affects the convergence of the critic NN. A novel learning rule is developed to guarantee that the identifier weights converge to small neighborhoods of their ideal values exponentially fast. To provide an easy-to-check persistence of excitation condition, the experience replay technique is used. That is, recorded past experiences are used simultaneously with current data for the adaptation of the identifier weights. Stability of the whole system consisting of the actor, critic, system state, and system identifier is guaranteed while all three networks undergo adaptation. Convergence to a near-optimal control law is also shown. The effectiveness of the proposed method is illustrated with a simulation example. PMID:24808590

  16. Family control,institutional environment and cash dividend policy:Evidence from China

    Institute of Scientific and Technical Information of China (English)

    Zhihua; Wei; Shinong; Wu; Changqing; Li; Wei; Chen

    2011-01-01

    Using a sample of 1486 Chinese A-share listed companies for the period 2004-2008,this study empirically tests the impact of family control,institutional environment and their interaction on the cash dividend policy of listed companies.Our results indicate that(1)family firms have a lower cash dividend payout ratio and propensity to pay dividends than non-family firms;(2) a favorable regional institutional environment has a significant positive impact on the cash dividend payout ratio and propensity to pay dividends of listed companies;and(3) the impact of the regional institutional environment on cash dividends is stronger in family firms than in non-family firms.Somewhat surprisingly,we find that controlling family shareholders in China may intensify Agency Problem Ⅰ(the owner-manager conflict) rather than Agency Problem Ⅱ(the controlling shareholder-minority shareholder conflict),and thus have a significant negative impact on cash dividend policy.In contrast,a favorable regional institutional environment plays a positive corporate governance role in mitigating Agency Problem 1 and encouraging family firms to pay cash dividends.

  17. Understanding post 9/11 drug control policy and politics in Central Asia.

    Science.gov (United States)

    Latypov, Alisher

    2009-09-01

    This paper exposes contemporary drug policy challenges in Central Asia by focusing on a single point in the history of drug control, in a single region of the global war against drugs and terrorism, and on one agency whose mission is to help make the world safer from crime, drugs and terrorism. By looking closely at the post 9/11 security-oriented donor priorities, I conclude that, in Central Asia, the rhetoric of the taking a more 'balanced approach' to drug policy is bankrupt. When enacted by the national law enforcement agencies in the Central Asian republics, the 'Drug Free' aspirational goal is driving the HIV epidemic among IDUs. The face-saving 'containment' thesis does not reflect the drug situation in this region but rather the failure to adopt an evidence-based approach. The harm reduction agenda continues to face many challenges including resistance to substitution treatment, the harm from drug treatment, from poorly designed drug prevention programmes and from repressive counter-narcotics policies and practices. PMID:19121928

  18. 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.

  19. Test-Optional Admission at a Liberal Arts College: A Founding Mission Affirmed

    Science.gov (United States)

    Shanley, Brian J.

    2007-01-01

    In this essay, Father Brian J. Shanley discusses Providence College's pilot program to eliminate standardized test scores from the required components of an admission application. Building on the college's ninety-year history of opening the doors of higher education to underrepresented populations, Providence College's test-optional policy is…

  20. Tobacco control policies in hospitals before and after the implementation of a national smoking ban in Catalonia, Spain

    Directory of Open Access Journals (Sweden)

    Puig Montse

    2009-05-01

    Full Text Available Abstract Background Diverse projects and guidelines to assist hospitals towards the attainment of comprehensive smoke-free policies have been developed. In 2006, Spain government passed a new smoking ban that reinforce tobacco control policies and banned completely smoking in hospitals. This study assesses the progression of tobacco control policies in the Catalan Network of Smoke-free Hospitals before and after a comprehensive national smoking ban. Methods We used the Self-Audit Questionnaire of the European Network for Smoke-free Hospitals to score the compliance of 9 policy standards (global score = 102. We used two cross-sectional surveys to evaluate tobacco control policies before (2005 and after the implementation of a national smoking ban (2007 in 32 hospitals of Catalonia, Spain. We compared the means of the overall score in 2005 and 2007 according to the type of hospital, the number of beds, the prevalence of tobacco consumption, and the number of years as a smoke-free hospital. Results The mean of the implementation score of tobacco control policies was 52.4 (95% CI: 45.4–59.5 in 2005 and 71.6 (95% CI: 67.0–76.2 in 2007 with an increase of 36.7% (p 300 beds (41.1% increase; p Conclusion The national smoking ban appears to increase tobacco control activities in hospitals combined with other non-bylaw initiatives such as the Smoke-free Hospital Network.

  1. Near-Optimal Controller for Nonlinear Continuous-Time Systems With Unknown Dynamics Using Policy Iteration.

    Science.gov (United States)

    Dutta, Samrat; Patchaikani, Prem Kumar; Behera, Laxmidhar

    2016-07-01

    This paper presents a single-network adaptive critic-based controller for continuous-time systems with unknown dynamics in a policy iteration (PI) framework. It is assumed that the unknown dynamics can be estimated using the Takagi-Sugeno-Kang fuzzy model with arbitrary precision. The successful implementation of a PI scheme depends on the effective learning of critic network parameters. Network parameters must stabilize the system in each iteration in addition to approximating the critic and the cost. It is found that the critic updates according to the Hamilton-Jacobi-Bellman formulation sometimes lead to the instability of the closed-loop systems. In the proposed work, a novel critic network parameter update scheme is adopted, which not only approximates the critic at current iteration but also provides feasible solutions that keep the policy stable in the next step of training by combining a Lyapunov-based linear matrix inequalities approach with PI. The critic modeling technique presented here is the first of its kind to address this issue. Though multiple literature exists discussing the convergence of PI, however, to the best of our knowledge, there exists no literature, which focuses on the effect of critic network parameters on the convergence. Computational complexity in the proposed algorithm is reduced to the order of (Fz)(n-1) , where n is the fuzzy state dimensionality and Fz is the number of fuzzy zones in the states space. A genetic algorithm toolbox of MATLAB is used for searching stable parameters while minimizing the training error. The proposed algorithm also provides a way to solve for the initial stable control policy in the PI scheme. The algorithm is validated through real-time experiment on a commercial robotic manipulator. Results show that the algorithm successfully finds stable critic network parameters in real time for a highly nonlinear system. PMID:26259150

  2. 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...

  3. 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...

  4. Every seventh acute medical admission is preventable

    DEFF Research Database (Denmark)

    Jepsen, Henrik Koldborg; Hendriksen, Carsten; Nielsen, Henrik; Nybo, Birgitte; Perrild, Hans

    2013-01-01

    The majority of patients who are admitted to the departments of internal medicine are admitted acutely. The aim of this study was to evaluate the appropriateness of admissions to a community hospital in Copenhagen....

  5. 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.

  6. Scheduling start time in CDMA burst admission

    OpenAIRE

    Zhuge, L; Li, VOK

    2002-01-01

    Burst transmission protocols have been proposed in the next generation CDMA cellular systems to support short-time high-speed data communications. The existing burst admission algorithm considers only the current interference condition in the system. The burst transmission request will be rejected if the interference in the system will exceed the acceptable level with the burst admitted. In this paper we propose a new burst admission algorithm where a currently-unacceptable burst request can ...

  7. GRADE: Machine Learning Support for Graduate Admissions

    OpenAIRE

    Waters, Austin; University of Texas at Austin; Miikkulainen, Risto; University of Texas at Austin

    2014-01-01

    This article describes GRADE, a statistical machine learning system developed to support the work of the graduate admissions committee at the University of Texas at Austin Department of Computer Science (UTCS). In recent years, the number of applications to the UTCS PhD program has become too large to manage with a traditional review process. GRADE uses historical admissions data to predict how likely the committee is to admit each new applicant. It reports each prediction as a score similar ...

  8. 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

  9. Estimating the Impacts of Local Policy Innovation: The Synthetic Control Method Applied to Tropical Deforestation.

    Science.gov (United States)

    Sills, Erin O; Herrera, Diego; Kirkpatrick, A Justin; Brandão, Amintas; Dickson, Rebecca; Hall, Simon; Pattanayak, Subhrendu; Shoch, David; Vedoveto, Mariana; Young, Luisa; Pfaff, Alexander

    2015-01-01

    Quasi-experimental methods increasingly are used to evaluate the impacts of conservation interventions by generating credible estimates of counterfactual baselines. These methods generally require large samples for statistical comparisons, presenting a challenge for evaluating innovative policies implemented within a few pioneering jurisdictions. Single jurisdictions often are studied using comparative methods, which rely on analysts' selection of best case comparisons. The synthetic control method (SCM) offers one systematic and transparent way to select cases for comparison, from a sizeable pool, by focusing upon similarity in outcomes before the intervention. We explain SCM, then apply it to one local initiative to limit deforestation in the Brazilian Amazon. The municipality of Paragominas launched a multi-pronged local initiative in 2008 to maintain low deforestation while restoring economic production. This was a response to having been placed, due to high deforestation, on a federal "blacklist" that increased enforcement of forest regulations and restricted access to credit and output markets. The local initiative included mapping and monitoring of rural land plus promotion of economic alternatives compatible with low deforestation. The key motivation for the program may have been to reduce the costs of blacklisting. However its stated purpose was to limit deforestation, and thus we apply SCM to estimate what deforestation would have been in a (counterfactual) scenario of no local initiative. We obtain a plausible estimate, in that deforestation patterns before the intervention were similar in Paragominas and the synthetic control, which suggests that after several years, the initiative did lower deforestation (significantly below the synthetic control in 2012). This demonstrates that SCM can yield helpful land-use counterfactuals for single units, with opportunities to integrate local and expert knowledge and to test innovations and permutations on policies

  10. Estimating the Impacts of Local Policy Innovation: The Synthetic Control Method Applied to Tropical Deforestation.

    Directory of Open Access Journals (Sweden)

    Erin O Sills

    Full Text Available Quasi-experimental methods increasingly are used to evaluate the impacts of conservation interventions by generating credible estimates of counterfactual baselines. These methods generally require large samples for statistical comparisons, presenting a challenge for evaluating innovative policies implemented within a few pioneering jurisdictions. Single jurisdictions often are studied using comparative methods, which rely on analysts' selection of best case comparisons. The synthetic control method (SCM offers one systematic and transparent way to select cases for comparison, from a sizeable pool, by focusing upon similarity in outcomes before the intervention. We explain SCM, then apply it to one local initiative to limit deforestation in the Brazilian Amazon. The municipality of Paragominas launched a multi-pronged local initiative in 2008 to maintain low deforestation while restoring economic production. This was a response to having been placed, due to high deforestation, on a federal "blacklist" that increased enforcement of forest regulations and restricted access to credit and output markets. The local initiative included mapping and monitoring of rural land plus promotion of economic alternatives compatible with low deforestation. The key motivation for the program may have been to reduce the costs of blacklisting. However its stated purpose was to limit deforestation, and thus we apply SCM to estimate what deforestation would have been in a (counterfactual scenario of no local initiative. We obtain a plausible estimate, in that deforestation patterns before the intervention were similar in Paragominas and the synthetic control, which suggests that after several years, the initiative did lower deforestation (significantly below the synthetic control in 2012. This demonstrates that SCM can yield helpful land-use counterfactuals for single units, with opportunities to integrate local and expert knowledge and to test innovations and

  11. Solving a Novel Inventory Location Model with Stochastic Constraints and (R,s,S) Inventory Control Policy

    OpenAIRE

    Guillermo Cabrera; Pablo A. Miranda; Enrique Cabrera; Ricardo Soto; Broderick Crawford; Jose Miguel Rubio; Fernando Paredes

    2013-01-01

    We solve a novel inventory-location model with a stochastic capacity constraint based on a periodic inventory control (ILM-PR) policy. The ILM-PR policy implies several changes with regard to other previous models proposed in the literature, which consider continuous review as their inventory policy. One of these changes is the inclusion of the undershoot concept, which has not been considered in previous ILM models in the literature. Based on our model, we are able to design a distribution n...

  12. WELFARE DIFFERENCES BETWEEN GROSS WATER PUMPED AND CONSUMPTIVE USE AS ALTERNATIVE POLICY CONTROL VARIABLES TO MEET AQUIFER MANAGEMENT OBJECTIVES

    OpenAIRE

    Yeboah, Osei-Agyeman; Supalla, Raymond J.; Martin, Derrel L.

    1999-01-01

    The welfare cost of using gross water pumped instead of consumptive use as a control variable to meet consumptive use goal was estimated for Southwestern Nebraska. The results show that the widespread use of gross water as a policy control variable substantially overstates the welfare cost of reducing consumptive use.

  13. Current situation and future challenges of tobacco control policy in Thailand.

    Science.gov (United States)

    Sangthong, Rassamee; Wichaidit, Wit; Ketchoo, Chittawet

    2012-01-01

    In Thailand, the prevalence of smoking has steadily declined over the past 20 years, suggesting an effective tobacco control policy. However, the prevalence has recently stabilised and youth smoking now appears to be on the rise. Tobacco use is the third highest risk factor contributing to the burden of disease in the country. This is an issue of concern and led to the present review of tobacco control measures in Thailand. The present evidence-based review shows that Thailand's tobacco control measures are relatively strong and comply well with the WHO Framework Convention on Tobacco Control in terms of taxation, advertisement through popular media, and warning labels on cigarettes and other tobacco product packages. However, challenges remain in dealing with highly prevalent roll-your-own cigarettes, strict prohibition of tobacco sale to underage youths, household smoking, illicit trade of tobacco products, viable tobacco crop diversification for domestic tobacco growers and liability. If these challenges are met, the prevalence of tobacco consumption could possibly be further reduced. PMID:21791510

  14. Policy Myopia

    OpenAIRE

    Toke S. Aidt; Dutta, J.; Loukoianova, Elena

    2003-01-01

    This paper develops a theory of policy myopia. Policy myopia arises when rational voters set performance standards that allow elected politicians to distort the portfolio of public investments towards short-term investments. We show that the fact that voters cannot observe immediately how much politicians invested in certain types of public goods is not in itself sufficient to generate policy myopia. Policy myopia, then, arises in societies where electoral control is imperfect or in societ...

  15. Policy of energy demand control and resistance to change. A socio-anthropological approach

    International Nuclear Information System (INIS)

    The development of energy consuming devices, the growth of electricity consumptions, the exhaustion of fossil fuels and the increase of greenhouse gases are as many factors that contribute to the acceleration of global warming. The control of energy demand is one of the levers to influence the energy-consuming behaviours. What are such policies made of? What instruments are used and with what efficiency? What population is targeted? Using some practical examples taken in the everyday life, the first part of this book shows how professionals and consumers are reticent to change their habits, equipments and know-how, and why they have very good reasons to do so. The second part of the book treats of incentive systems and shows that they very often have problems with finding a public. The different energy saving awareness campaigns show the importance of the preliminary building of an energy saving culture to make energy saving policies efficient and socially acceptable. The next part deals with the experience gained from the energy efficiency programs implemented in Quebec and in French Guyana. In both cases, the public information tools are adapted to the culture of the targeted populations. The last part reviews some paths to explore to durably change the behaviours. (J.S.)

  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. 22 CFR 217.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Admissions and recruitment. 217.42 Section 217... 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 by a recipient to...

  18. 15 CFR 8b.20 - Admission and recruitment.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Admission and recruitment. 8b.20... Secondary Education § 8b.20 Admission and recruitment. (a) General. Qualified handicapped may not, on the basis of handicap, be denied admission or be subjected to discrimination in admission or recruitment...

  19. 34 CFR 104.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Admissions and recruitment. 104.42 Section 104.42... ASSISTANCE Postsecondary Education § 104.42 Admissions and recruitment. (a) General. Qualified handicapped... admission or recruitment by a recipient to which this subpart applies. (b) Admissions. In administering...

  20. 43 CFR 41.305 - Preference in admission.

    Science.gov (United States)

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Preference in admission. 41.305 Section 41... Basis of Sex in Admission and Recruitment Prohibited § 41.305 Preference in admission. A recipient to which §§ 41.300 through 41.310 apply shall not give preference to applicants for admission, on the...

  1. 28 CFR 54.305 - Preference in admission.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Preference in admission. 54.305 Section... Basis of Sex in Admission and Recruitment Prohibited § 54.305 Preference in admission. A recipient to which §§ 54.300 through 54.310 apply shall not give preference to applicants for admission, on the...

  2. 22 CFR 229.305 - Preference in admission.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Preference in admission. 229.305 Section 229... in Admission and Recruitment Prohibited § 229.305 Preference in admission. A recipient to which §§ 229.300 through 229.310 apply shall not give preference to applicants for admission, on the basis...

  3. 15 CFR 8a.305 - Preference in admission.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Preference in admission. 8a.305... on the Basis of Sex in Admission and Recruitment Prohibited § 8a.305 Preference in admission. A recipient to which §§ 8a.300 through 8a.310 apply shall not give preference to applicants for admission,...

  4. 22 CFR 146.305 - Preference in admission.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Preference in admission. 146.305 Section 146... in Admission and Recruitment Prohibited § 146.305 Preference in admission. A recipient to which §§ 146.300 through 146.310 apply shall not give preference to applicants for admission, on the basis...

  5. 31 CFR 28.305 - Preference in admission.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Preference in admission. 28.305... Discrimination on the Basis of Sex in Admission and Recruitment Prohibited § 28.305 Preference in admission. A recipient to which §§ 28.300 through 28.310 apply shall not give preference to applicants for admission,...

  6. 49 CFR 25.305 - Preference in admission.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Preference in admission. 25.305 Section 25.305... Admission and Recruitment Prohibited § 25.305 Preference in admission. A recipient to which §§ 25.300 through 25.310 apply shall not give preference to applicants for admission, on the basis of attendance...

  7. 45 CFR 86.22 - Preference in admission.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Preference in admission. 86.22 Section 86.22... on the Basis of Sex in Admission and Recruitment Prohibited § 86.22 Preference in admission. A recipient to which this subpart applies shall not give preference to applicants for admission, on the...

  8. 6 CFR 17.305 - Preference in admission.

    Science.gov (United States)

    2010-01-01

    ... 6 Domestic Security 1 2010-01-01 2010-01-01 false Preference in admission. 17.305 Section 17.305... the Basis of Sex in Admission and Recruitment Prohibited § 17.305 Preference in admission. A recipient to which §§ 17.300 through 17.310 apply shall not give preference to applicants for admission, on...

  9. 40 CFR 5.305 - Preference in admission.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Preference in admission. 5.305 Section... on the Basis of Sex in Admission and Recruitment Prohibited § 5.305 Preference in admission. A recipient to which §§ 5.300 through 5.310 apply shall not give preference to applicants for admission,...

  10. Optimal pricing and promotional effort control policies for a new product growth in segmented market

    Directory of Open Access Journals (Sweden)

    Jha P.C.

    2015-01-01

    Full Text Available Market segmentation enables the marketers to understand and serve the customers more effectively thereby improving company’s competitive position. In this paper, we study the impact of price and promotion efforts on evolution of sales intensity in segmented market to obtain the optimal price and promotion effort policies. Evolution of sales rate for each segment is developed under the assumption that marketer may choose both differentiated as well as mass market promotion effort to influence the uncaptured market potential. An optimal control model is formulated and a solution method using Maximum Principle has been discussed. The model is extended to incorporate budget constraint. Model applicability is illustrated by a numerical example. P.C. Jha, P. Manik, K. Chaudhary, R. Cambini / Optimal Pricing and Promotional 2 Since the discrete time data is available, the formulated model is discretized. For solving the discrete model, differential evolution algorithm is used.

  11. Wolfgang K.H. Panofsky: Physics, Science Policy, and Arms Control

    International Nuclear Information System (INIS)

    Wolfgang K. H. Panofsky, professor at Stanford University and founding director of the Stanford Linear Accelerator, was a legendary figure in physics in the second half of the 20th century. He is respected for his contribution in three important areas: as a scientist who advanced particle physics and accelerator development, as the founder of SLAC, a research laboratory of international rank, and a long-time advisor to the US government on science policy, on national security, and on arms control. Over many years he was the outstanding leader of the US National Academy of Sciences efforts to advise the US government on the need for international agreements on nuclear non-proliferation and arms reduction. This presentation will high light the accomplishment of the gentleman who became a legendary and beloved figure to all who had a chance to meet and interact with him, and who called him simply Pief.

  12. Incremental Temporal Logic Synthesis of Control Policies for Robots Interacting with Dynamic Agents

    CERN Document Server

    Wongpiromsarn, Tichakorn; Belta, Calin; Frazzoli, Emilio; Rus, Daniela

    2012-01-01

    We consider the synthesis of control policies from temporal logic specifications for robots that interact with multiple dynamic environment agents. Each environment agent is modeled by a Markov chain whereas the robot is modeled by a finite transition system (in the deterministic case) or Markov decision process (in the stochastic case). Existing results in probabilistic verification are adapted to solve the synthesis problem. To partially address the state explosion issue, we propose an incremental approach where only a small subset of environment agents is incorporated in the synthesis procedure initially and more agents are successively added until we hit the constraints on computational resources. Our algorithm runs in an anytime fashion where the probability that the robot satisfies its specification increases as the algorithm progresses.

  13. Comparison of policies for controlling groundwater nitrate pollution from agriculture in the Eastern Mancha aquifer (Spain).

    Science.gov (United States)

    Peña-Haro, S.; Llopis-Albert, C.; Pulido-Velazquez, M.; Stalder, A.; Garcia-Prats, A.; Henriquez-Dole, L.

    2012-04-01

    Groundwater nitrate pollution from agriculture has given rise to different legal frameworks. The European Water Framework Directive (WFD) is the most recent one. This work aims to help in the definition of the most cost-efficient policy to control non-point groundwater to attain the objectives established in the WFD. In this study we performed a cost-effectiveness analysis of different policies for controlling groundwater nitrate pollution from agriculture. The policies considered were taxes on nitrogen fertilizers, water price, taxes on emissions and fertilizer standards. We used a hydro-economic model, where we maximized the farmer's benefits. The benefits were calculated as sum of crop revenue minus variable and fixed cost per hectare minus the damage costs from nitrogen leaching. In the cost-effectiveness analysis we considered the costs as the reduction on benefits due to the application of a policy and the effectiveness the reduction on nitrate leaching. The methodology was applied to Eastern Mancha aquifer in Spain. The aquifer is part of the Júcar River Basin, which was declared as EU Pilot Basin in 2002 for the implementation of the WFD. Over the past 30 years the area has undertaken a significant socioeconomic development, mainly due to the intensive groundwater use for irrigated crops, which has provoked a steady decline of groundwater levels and a reduction of groundwater discharged into the Júcar River, as well as nitrate concentrations higher than those allowed by the WFD at certain locations (above 100 mg/l.). Crop revenue was calculated using production functions and the amount of nitrate leached was estimated by calibrated leaching functions. These functions were obtained by using an agronomic model (a GIS version of EPIC, GEPIC), and they depend on the water and the fertilizer use. The Eastern Mancha System was divided into zones of homogeneous crop production and nitrate leaching properties. Given the different soil types and climatic

  14. Implementation of Policies and Strategies for Control of Noncommunicable Diseases in Malawi: Challenges and Opportunities.

    Science.gov (United States)

    Lupafya, Phindile Chitsulo; Mwagomba, Beatrice L Matanje; Hosig, Kathy; Maseko, Lucy M; Chimbali, Henry

    2016-04-01

    Malawi is a Sub-Saharan African country experiencing the epidemiological transition from predominantly infectious to noncommunicable diseases (NCDs) with dramatically increasing prevalence of lifestyle-related diseases such as obesity, hypertension, and diabetes. Malawi's 2011-2016 Health Sector Strategic Plan included NCDs, and an NCD Control Program was established with subsequent development of a National Action Plan for prevention and management of NCDs launched in 2013. The current study was designed to identify gaps in implementation of NCD control program policies and action plan strategies by describing current efforts toward prevention and management of NCDs in Malawi with emphasis on challenges and opportunities. Semistructured questionnaires were used to collect quantitative and qualitative data from Malawi Ministry of Health personnel (senior officers, service providers, health education officers, and nutritionists) in 10 health districts and 3 central hospitals. Frequencies were generated for quantitative data. Qualitative data were used to generate themes and most common responses. Results showed that current services focus on facility-based NCD screening and clinical services rather than active screening, prevention, and community awareness and outreach, although respondents emphasized the importance of prevention, lifestyle education, and community outreach. Respondents indicated inadequate resources for NCD services including financial capital, human resources, equipment and supplies, and transportation. While Malawi has begun to address NCDs, policy and practice implications include (a) better integration of services within the existing infrastructure with emphasis on capacity building; (b) greater implementation of planned NCD activities; (c) a stronger, more comprehensive data management system; and (d) innovative funding solutions. PMID:27037149

  15. 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…

  16. 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…

  17. 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

  18. Streamlining Local Behaviour Through Communication, Incentives and Control: A Case Study of Local Environmental Policies in China

    Directory of Open Access Journals (Sweden)

    Thomas Heberer

    2011-01-01

    Full Text Available This article describes how China uses evaluation ratings and monitoring as incentives in order to foster the implementation of environmental policies at the local level. It is argued that decentralisation in China leaves room for actors at the local levels to manoeuver and bargain with those on higher levels for flexible adjustment of implementation policies according to local conditions. However, decentralisation is accompanied by significant institutional changes in the structure of intergovernmental communication, incentives and control. Accordingly, decentralisation in China exhibits a specific design which leaves space for divergent local environmental policies while also engendering “grass-roots mechanisms”. On the whole, this new institutional setting benefits the implementation of environmental policies.

  19. DESIGNING ACCESS CONTROL MODEL AND ENFORCING SECURITY POLICIES USING PERMIS FOR A SMART ITEM E-HEALTH SCENARIO

    Directory of Open Access Journals (Sweden)

    HASAN MAHMUD,

    2010-08-01

    Full Text Available Sensor networks in medical applications are the edge component of the health care system. This type of network comprises a significant number of different sensor devices called smart items which are tightly connected and interacts continuously. Smart items measure the values of different health variables and send them through suitable communication interface. Measured data forms a crucial part of personal health information which must be protected from the aspect of integrity and patient privacy. This paper presents security concerns regarding an e-health application built on a wireless sensor network environment. We have designed security policies for the e-health scenario and enforced those policies through PERMIS (Privilege and Role Management Infrastructure Standards that uses RBAC (Role Based Access Control, X.509 and PMI (Privilege ManagementInfrastructure to implement authentication and authorization scheme. The concept of reference monitor has also been shown with an example policy implementation using ConSpec policy language.

  20. Impact of admission screening for methicillin-resistant Staphylococcus aureus on the length of stay in an emergency department.

    LENUS (Irish Health Repository)

    Gilligan, P

    2010-06-01

    Preventing and controlling methicillin-resistant Staphylococcus aureus (MRSA) includes early detection and isolation. In the emergency department (ED), such measures have to be balanced with the requirement to treat patients urgently and transfer quickly to an acute hospital bed. We assessed, in a busy and overcrowded ED, the contribution made to a patient\\'s stay by previous MRSA risk group identification and by selective rescreening of those patients who were previously documented in the research hospital as being MRSA positive. Patients with a previous diagnosis of MRSA colonisation were flagged automatically as \\'risk group\\' (RG) on their arrival in the ED and were compared with \\'non-risk group\\' (NRG), i.e. not previously demonstrated in the research hospital to be infected or colonised with MRSA. Over an 18 month period, there were 16 456 admissions via the ED, of which 985 (6%) were RG patients. The expected median times to be admitted following a request for a ward bed for NRG and RG patients were 10.4 and 12.9h, respectively. Female sex, age >65 years, and RG status all independently predicted a statistically significantly longer stay in the ED following a request for a hospital bed. We consider that national and local policies for MRSA need to balance the welfare of patients in the ED with the need to comply with best practice, when there are inadequate ED and inpatient isolation facilities. Patients with MRSA requiring emergency admission must have a bed available for them.

  1. 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.

  2. Regional differences in Chinese SO2 emission control efficiency and policy implications

    Directory of Open Access Journals (Sweden)

    Q. Q. Zhang

    2015-02-01

    Full Text Available SO2 emission control has been one of the most important air pollution policies in China since 2000. In this study, we assess regional differences in SO2 emission control efficiencies in China through the modeling analysis of four scenarios of SO2 emissions, all of which aim at reducing the national total SO2 emissions by 8% or 2.3 Tg below the 2010 emissions level, the target set by the current 12th FYP (2011–2015, but differ in the spatial implementation. The GEOS-Chem chemical transport model is used to evaluate the efficiency of each scenario on the basis of three impact metrics: surface sulfate concentration, population-weighted sulfate concentration (PWC, and sulfur export flux from China to the Western Pacific. The efficiency of SO2 control (β is defined as the relative change of each impact metric to a 1% reduction of SO2 emissions from the 2010 baseline. The S1 scenario, which adopts a spatially uniform reduction of SO2 emissions in China, gives a β of 0.71, 0.83, and 0.67 for sulfate concentration, PWC, and export flux, respectively. By comparison, the S2 scenario, which implements all the SO2 emissions reduction over North China (NC, is found most effective in reducing national-mean surface sulfate concentrations and sulfur export fluxes, with β being 0.76 and 0.95 respectively. The S3 scenario of implementing all the SO2 emission reduction over South China (SC has the highest β in reducing PWC (β = 0.98 because SC has the highest correlation between population density and sulfate concentration. Reducing SO2 emissions over Southwest China (SWC is found to be least efficient on the national scale, albeit within-region benefit. The difference in β by scenario is attributable to regional differences in SO2 oxidation pathways and source–receptor relationships. Among the three regions examined here, NC shows the largest proportion of sulfate formation from gas phase oxidation, which is more sensitive to SO2 emission change than

  3. Liberalized electric power markets as controlled through environmental policies; Umweltpolitische Steuerung in einem liberalisierten Strommarkt

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann-Riem, W. [ed.; Schneider, J.P. [ed.

    1995-06-01

    This book deals with the wholesale electric power market which forms and influences the entire electric power market and is an important part of the general energy market. Instead of discussing all advantages and disadvantages and the legal problems of a possible electric power market liberalization, the contributions investigate whether and to what extent liberalization may facilitate the implementation of environmental-policy targets. To be able to discuss that question the structures of the electric power market must be known and one must be familiar with the current environmental-policy and political debates about a reform. The respective analyses serve to identify environmental-policy control potentials. Since the energy sector and the reform debate are influenced by widely differing interests, different representatives are asked to give their opinions. The concluding constitutional analyses are indispensable if one wants to treat consequential problems because in spite of political consensuses reforms cannot be implemented when they are not sanctioned by the constitution. The contributions to this book are papers read at a symposium organized by Forschungsstelle Umweltrecht at the University of Hamburg in June 1994. (orig./UA) [Deutsch] Der vorliegende Band behandelt den Grosshandelsmarkt fuer Strom, der praegend fuer den gesamten Strommarkt wirkt und einen wichtigen Teil des allgemeinen Energiemarkts darstellt. Ziel des Bandes ist es nicht, alle mit einer moeglichen Liberalisierung des Strommarktes verbundenen Vor- und Nachteile, insbesondere in Gestalt aller Rechtsprobleme, zu eroertern. Vielmehr geht es um die Frage, ob und wieweit eine Liberalisierung es erleichtert, auch umweltpolitische Ziele zu verwirklichen. Die Beschaeftigung mit dieser Frage setzt natuerlich zunaechst eine Vergewisserung ueber die Strukturen des Strommarktes und ueber die aktuelle Reformdiskussion voraus, auch soweit sie nicht umweltpolitisch, sondern z.B. ``nur`` ordnungspolitisch

  4. The SAFE strategy for trachoma control: using operational research for policy, planning and implementation

    Directory of Open Access Journals (Sweden)

    Emerson Paul M

    2006-01-01

    Full Text Available Trachoma is a neglected disease and also the world's leading infectious cause of blindness. It causes misery, dependency and is a barrier to development. Trachoma is controlled by a WHO-endorsed integrated strategy of surgery for trichiasis, antibiotic therapy, facial cleanliness and environmental improvement, which is known by the acronym SAFE. The strategy is based on evidence from field trials and is continually being refined by operational research that informs national policy and planning; the strategy has affected both programme delivery and implementation. As a result of the findings of operational research, surgery is now frequently conducted by paramedics in communities rather than by ophthalmologists in hospitals; yearly mass distribution of a single oral dose of azithromycin has replaced the use of topical tetracycline; and the promotion of better hygiene, face-washing and the use of latrines are used to reduce transmission. Those who implement programmes have been equal partners in conducting operational research thus reducing the "know-do" gap and minimizing the lag that often exists between the completion of trials and putting their results into practice. Operational research has become a part of practice. Although there are still many questions without answers, national programme coordinators have a reasonable expectation that trachoma control programmes based on SAFE will work.

  5. Research that influences policy and practice – characteristics of operational research to improve malaria control in Mpumalanga Province, South Africa

    Directory of Open Access Journals (Sweden)

    Speare Richard

    2002-07-01

    Full Text Available Abstract Background Much communicable disease control research has had little impact on local control programme policy and practice for want of an operational component. The operational research model – the systematic search for knowledge on interventions, tools or strategies that enhance programme effectiveness – is gaining recognition as an appropriate method for addressing perplexing questions within public health programmes. Methods A series of operational research studies were conducted to refine malaria diagnosis in Mpumalanga Province, South Africa between 1995 and 1999. The grounded theory approach was used with groups of experienced Masters of Public Health students in South Africa and Australia to analyse a compilation of these studies for determining positive and negative attributes of operational research that affect its ability to influence communicable disease control policy and practice. Results The principal positive attributes of the operational research studies were high local relevance, greater ability to convince local decision-makers, relatively short lag-time before implementation of findings, and the cost-effective nature of this form of research. Potential negative features elicited included opportunities forfeited by using scarce resources to conduct research and the need to adequately train local health staff in research methodology to ensure valid results and accurate interpretation of findings. Conclusions Operational research effectively influenced disease control policy and practice in rural South Africa, by providing relevant answers to local questions and engaging policy-makers. This resulted in accelerated inclusion of appropriate measures into a local communicable disease control programme.

  6. Analysis of an M|G|1|R queue with batch arrivals and two hysteretic overload control policies

    Directory of Open Access Journals (Sweden)

    Gaidamaka Yuliya

    2014-09-01

    Full Text Available Hysteretic control of arrivals is one of the most easy-to-implement and effective solutions of overload problems occurring in SIP-servers. A mathematical model of an SIP server based on the queueing system M[X]|G|1(L,H|(H,R with batch arrivals and two hysteretic loops is being analyzed. This paper proposes two analytical methods for studying performance characteristics related to the number of customers in the system. Two control policies defined by instants when it is decided to change the system’s mode are considered. The expression for an important performance characteristic of each policy (the mean time between changes in the system mode is presented. Numerical examples that allow comparison of the efficiency of both policies are given

  7. Instance-based Policy Learning by Real-coded Genetic Algorithms and Its Application to Control of Nonholonomic Systems

    Science.gov (United States)

    Miyamae, Atsushi; Sakuma, Jun; Ono, Isao; Kobayashi, Shigenobu

    The stabilization control of nonholonomic systems have been extensively studied because it is essential for nonholonomic robot control problems. The difficulty in this problem is that the theoretical derivation of control policy is not necessarily guaranteed achievable. In this paper, we present a reinforcement learning (RL) method with instance-based policy (IBP) representation, in which control policies for this class are optimized with respect to user-defined cost functions. Direct policy search (DPS) is an approach for RL; the policy is represented by parametric models and the model parameters are directly searched by optimization techniques including genetic algorithms (GAs). In IBP representation an instance consists of a state and an action pair; a policy consists of a set of instances. Several DPSs with IBP have been previously proposed. In these methods, sometimes fail to obtain optimal control policies when state-action variables are continuous. In this paper, we present a real-coded GA for DPSs with IBP. Our method is specifically designed for continuous domains. Optimization of IBP has three difficulties; high-dimensionality, epistasis, and multi-modality. Our solution is designed for overcoming these difficulties. The policy search with IBP representation appears to be high-dimensional optimization; however, instances which can improve the fitness are often limited to active instances (instances used for the evaluation). In fact, the number of active instances is small. Therefore, we treat the search problem as a low dimensional problem by restricting search variables only to active instances. It has been commonly known that functions with epistasis can be efficiently optimized with crossovers which satisfy the inheritance of statistics. For efficient search of IBP, we propose extended crossover-like mutation (extended XLM) which generates a new instance around an instance with satisfying the inheritance of statistics. For overcoming multi-modality, we

  8. Addressing policy needs for prevention and control of type 2 diabetes in India.

    Science.gov (United States)

    Atre, Sachin

    2015-09-01

    India carries nearly one-fifth of the global burden of diabetes cases, the majority of which are of type 2 diabetes. Recognising the need for controlling diabetes, the Government of India has initiated a national level programme for prevention and control of diabetes along with other non-communicable diseases in 2008. Despite being piloted and implemented, there is hardly any published literature about the national level situation of diabetes and its control efforts. The present article is written with the aim to fill this gap to some extent and to provide a situational analysis of the diabetes problem in India in a holistic way, addressing policy needs for the national programme. It focuses on three main areas, namely, awareness of diabetes, costs of drugs for its treatment and healthcare-system related issues. It argues that poor coverage and weak implementation of the national level programme are major forces that push patients to seek help in the weakly regulated private sector. Approaching the private sector is likely to increase the cost of care, which in turn can lead to an increased financial burden for patients and their families due to factors such as patients' lack of awareness about diabetes, poor drug price regulation and prescriptions including combinations and/or patented products of medicines used for treating diabetes by the private sector. This article addresses several needs such as strengthening the national programme and increasing its reach to unreached districts, exerting drug price regulation and implementing community-based participatory programmes for prevention and management of type 2 diabetes. It also underscores a need for piloting and implementing a robust national level electronic reporting system for diabetes programmes. PMID:25585513

  9. A Cost-Effectiveness Tool for Informing Policies on Zika Virus Control.

    Directory of Open Access Journals (Sweden)

    Jorge A Alfaro-Murillo

    2016-05-01

    Full Text Available As Zika virus continues to spread, decisions regarding resource allocations to control the outbreak underscore the need for a tool to weigh policies according to their cost and the health burden they could avert. For example, to combat the current Zika outbreak the US President requested the allocation of $1.8 billion from Congress in February 2016.Illustrated through an interactive tool, we evaluated how the number of Zika cases averted, the period during pregnancy in which Zika infection poses a risk of microcephaly, and probabilities of microcephaly and Guillain-Barré Syndrome (GBS impact the cost at which an intervention is cost-effective. From Northeast Brazilian microcephaly incidence data, we estimated the probability of microcephaly in infants born to Zika-infected women (0.49% to 2.10%. We also estimated the probability of GBS arising from Zika infections in Brazil (0.02% to 0.06% and Colombia (0.08%. We calculated that each microcephaly and GBS case incurs the loss of 29.95 DALYs and 1.25 DALYs per case, as well as direct medical costs for Latin America and the Caribbean of $91,102 and $28,818, respectively. We demonstrated the utility of our cost-effectiveness tool with examples evaluating funding commitments by Costa Rica and Brazil, the US presidential proposal, and the novel approach of genetically modified mosquitoes. Our analyses indicate that the commitments and the proposal are likely to be cost-effective, whereas the cost-effectiveness of genetically modified mosquitoes depends on the country of implementation.Current estimates from our tool suggest that the health burden from microcephaly and GBS warrants substantial expenditures focused on Zika virus control. Our results justify the funding committed in Costa Rica and Brazil and many aspects of the budget outlined in the US president's proposal. As data continue to be collected, new parameter estimates can be customized in real-time within our user-friendly tool to provide

  10. A Cost-Effectiveness Tool for Informing Policies on Zika Virus Control

    Science.gov (United States)

    Tamagnan, Jules A.; Medlock, Jan; Ndeffo-Mbah, Martial L.; Fish, Durland; Ávila-Agüero, María L.; Marín, Rodrigo; Ko, Albert I.; Galvani, Alison P.

    2016-01-01

    Background As Zika virus continues to spread, decisions regarding resource allocations to control the outbreak underscore the need for a tool to weigh policies according to their cost and the health burden they could avert. For example, to combat the current Zika outbreak the US President requested the allocation of $1.8 billion from Congress in February 2016. Methodology/Principal Findings Illustrated through an interactive tool, we evaluated how the number of Zika cases averted, the period during pregnancy in which Zika infection poses a risk of microcephaly, and probabilities of microcephaly and Guillain-Barré Syndrome (GBS) impact the cost at which an intervention is cost-effective. From Northeast Brazilian microcephaly incidence data, we estimated the probability of microcephaly in infants born to Zika-infected women (0.49% to 2.10%). We also estimated the probability of GBS arising from Zika infections in Brazil (0.02% to 0.06%) and Colombia (0.08%). We calculated that each microcephaly and GBS case incurs the loss of 29.95 DALYs and 1.25 DALYs per case, as well as direct medical costs for Latin America and the Caribbean of $91,102 and $28,818, respectively. We demonstrated the utility of our cost-effectiveness tool with examples evaluating funding commitments by Costa Rica and Brazil, the US presidential proposal, and the novel approach of genetically modified mosquitoes. Our analyses indicate that the commitments and the proposal are likely to be cost-effective, whereas the cost-effectiveness of genetically modified mosquitoes depends on the country of implementation. Conclusions/Significance Current estimates from our tool suggest that the health burden from microcephaly and GBS warrants substantial expenditures focused on Zika virus control. Our results justify the funding committed in Costa Rica and Brazil and many aspects of the budget outlined in the US president’s proposal. As data continue to be collected, new parameter estimates can be customized

  11. "Every Child Counts": Testing Policy Effectiveness Using a Randomised Controlled Trial, Designed, Conducted and Reported to CONSORT Standards

    Science.gov (United States)

    Torgerson, Carole; Wiggins, Andy; Torgerson, David; Ainsworth, Hannah; Hewitt, Catherine

    2013-01-01

    We report a randomised controlled trial evaluation of an intensive one-to-one numeracy programme--"Numbers Count"--which formed part of the previous government's numeracy policy intervention--"Every Child Counts." We rigorously designed and conducted the trial to CONSORT guidelines. We used a pragmatic waiting list design to…

  12. School Autonomy and Government Control: School Leaders' Views on a Changing Policy Landscape in England

    Science.gov (United States)

    Higham, Rob; Earley, Peter

    2013-01-01

    The Conservative-Liberal Democrat Coalition government elected in 2010 has argued contemporary reform will increase the autonomy of schools in England. Given the complexities that exist, however, in the balance between autonomy and control, we explore how school leaders view autonomy as it exists within the wider policy framework. The article…

  13. Application of innovative policies for controlling radionuclide releases: The {open_quotes}open-market trading rule{close_quotes}

    Energy Technology Data Exchange (ETDEWEB)

    Moeller, D.W. [Dade Moeller & Associates, Inc., New Bern, NC (United States)

    1997-08-01

    In the past, most efforts for reducing airborne radio nuclide releases and controlling radioactive wastes have been directed to the development of new and improved technologies. Little attention has been paid to the possible application to these problems of new, innovative policies. Yet, experience in other fields shows that such applications could be beneficial. A prime example is the {open_quotes}open-market trading rule,{close_quotes} now being widely used in the U.S. for the control of a range of environmental problems. Through this rule, nuclear facility operators would be permitted to control airborne emissions in a more cost-effective manner, and those responsible for decommissioning and decontaminating nuclear facilities no longer in operation could do so at far lower costs while generating significantly smaller volumes of radioactive wastes. Application of such a policy would also significantly reduce the demands on existing, and the need for research to develop new, improved, control technologies. 16 refs.

  14. Environmental policy and economic efficiency: tradable permits versus regulatory instrument to control air pollution: a comparative approach USA/France

    International Nuclear Information System (INIS)

    The key issue of the thesis paradox of the weak implementation of economic instruments whereas 1) they are theoretically and also empirically considered as efficient; 2) the market imposes itself as the central reference to modem economies; and 3) economic efficiency is nowadays a legitimacy measure of public policies. Two different answers can be given: either theoretical analysis does not enable to explain the real economic efficiency of a political instrument, or environmental policies do not have economic efficiency as their main objective. The analysis take place in a context of a limited rationality and an inter-temporal consistency of public policies. The purpose is to understand the role of economic efficiency criteria during the adoption, building, and evolution of an environmental policy with an analytical point of view, and not a normative one. The institutional analysis of the American and the French pollution control policies, representative of the implementation of a trading permit system for the first, and of a regulatory instrument for the second, prove that the theoretical analysis of an instrument can not explain a real coordination, but only one organizational form among others. An institutional trajectory is the interpretation of policy instruments of policy instruments from 5 fundamental elements: the nature of the legitimacy of the policy; the nature of the regulator hypothesis on the information; the nature of the decision-making basis; the nature of the collective action. A coordination changes when the occurrence of an event moves one of the fundamental elements, and disorganizes the satisfying equilibrium of the agents. Then, the economic efficiency becomes a negotiation point. A political instrument is adopted for its own ability to solve a dysfunction without disrupting the coordination. (author)

  15. What Should University Admissions Tests Predict?

    Science.gov (United States)

    Stemler, Steven E.

    2012-01-01

    University admissions tests should predict an applicant's ability to succeed in college, but how should this success be defined and measured? The status quo has been to use 1st-year grade point average (FYGPA) as the key indicator of college success, but a review of documents such as university mission statements reveals that universities expect…

  16. 49 CFR 1114.1 - Admissibility.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 8 2010-10-01 2010-10-01 false Admissibility. 1114.1 Section 1114.1 Transportation Other Regulations Relating to Transportation (Continued) SURFACE TRANSPORTATION BOARD, DEPARTMENT OF TRANSPORTATION RULES OF PRACTICE EVIDENCE; DISCOVERY General Rules of Evidence §...

  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. 18 CFR 1317.300 - Admission.

    Science.gov (United States)

    2010-04-01

    ... 18 Conservation of Power and Water Resources 2 2010-04-01 2010-04-01 false Admission. 1317.300 Section 1317.300 Conservation of Power and Water Resources TENNESSEE VALLEY AUTHORITY NONDISCRIMINATION ON... person on the basis of pregnancy, childbirth, termination of pregnancy, or recovery therefrom,...

  19. 44 CFR 19.300 - Admission.

    Science.gov (United States)

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Admission. 19.300 Section 19.300 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND... against or exclude any person on the basis of pregnancy, childbirth, termination of pregnancy, or...

  20. Research that influences policy and practice – characteristics of operational research to improve malaria control in Mpumalanga Province, South Africa

    OpenAIRE

    Speare Richard; Harries Anthony D; Durrheim David N

    2002-01-01

    Abstract Background Much communicable disease control research has had little impact on local control programme policy and practice for want of an operational component. The operational research model – the systematic search for knowledge on interventions, tools or strategies that enhance programme effectiveness – is gaining recognition as an appropriate method for addressing perplexing questions within public health programmes. Methods A series of operational research studies were conducted ...

  1. 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

  2. Disarmament through regional dialogue: United States arms control and disarmament policies

    International Nuclear Information System (INIS)

    Less than fifty years ago, Japan and the United States faced one another in history's deadliest conflict. Since that world war, the competition has been limited to a mature-if spirited-contest for customers. The two countries have become firm friends for peace-and leaders in the international community's campaign against weapons of mass destruction. This friendship is too important to be shaken by momentary upsets. The countries that learned the most from the last great war are today among the most resolutely peaceful in the world. To my mind, it is no coincidence that Japan and Germany, two nations which transformed defeat in that war into remarkable economic success following it-which have sought prosperity and harmony with their neighbours instead of dominion over them-are the two nations the United States would like to see added as permanent members to the United Nations Security Council. There is hope that, some day, countries may be judged not by the arms but the commitments they keep-and the values they uphold. All responsible nations must affirm that nuclear non-proliferation is an enduring value, not a passing policy. United States Arms Control and Disarmament Agency underlines that its highest priority in the coming year is indefinite and unconditional extension of the Non-proliferation Treaty

  3. A Study of Heavy Metal Pollution in China: Current Status, Pollution-Control Policies and Countermeasures

    Directory of Open Access Journals (Sweden)

    Hui Hu

    2014-09-01

    Full Text Available In the past 30 years, China’s economy has experienced rapid development, which led to a vast increase in energy consumption and serious environmental pollution. Among the different types of pollution, heavy metal pollution has become one of the major environmental issues in China. A number of studies show that high level of heavy metal exposure is a frequent cause of permanent intellectual and developmental disabilities. In recent years, some traditional pollutants, such as sulfur dioxide and carbon dioxide, have been put under control in China. However, heavy metal pollution, which poses even greater risks to public health and sustainable development, has yet to gain policymakers’ attention. The purpose of this paper is to explore effective countermeasures for heavy metal pollution in China. The present study reviews the current status of China’s heavy metal pollution and analyzes related public policies and countermeasures against that pollution. It also presents a few recommendations and measures for prevention of heavy metal pollution.

  4. Associations between tobacco control policy awareness, social acceptability of smoking and smoking cessation: findings from the International Tobacco Control (ITC) Europe Surveys

    NARCIS (Netherlands)

    E. Rennen; G.E. Nagelhout; B. van den Putte; E. Janssen; U. Mons; R. Guignard; F. Beck; H. de Vries; J.F. Thrasher; M.C. Willemsen

    2014-01-01

    This study examined whether awareness of tobacco control policies was associated with social unacceptability of smoking and whether social unacceptability had an effect on smoking cessation in three European countries. Representative samples (n = 3865) of adult smokers in France, the Netherlands and

  5. Public policies of struggle against air pollution. A survey requested by the National Assembly Committee for assessment and control of public policies

    International Nuclear Information System (INIS)

    This report focuses on the assessment and perspectives of French public policies of struggle against outdoor air pollution, out of problems related to greenhouse gas emissions. It is based on a sectoral analysis of actions undertaken by public authorities, but also and more particularly on measures adopted within the frame of pollution peak management in March 2014 and March 2015, as well as on plans for atmosphere protection adopted in Ile-de-France, in the Arve river valley, in Bouches-du-Rhone, in Haute-Normandie, and in the Grenoble region, as these regions display very different characteristics in terms of atmospheric pollution. A questionnaire was also sent to regional authorities, and measures adopted for air quality control in some neighbouring countries (Germany, Italy, Netherlands, United Kingdom, Switzerland) have been examined. The report shows that stakes are always better identified and addressed (general improvement of regulated pollutants, confirmed risks for health, a constraining regulatory framework, and pollutants still to be better controlled). However, it shows that measures are not coherent enough. It highlights contradictions with other national policies, badly organised governance, the existence of multiple legal and financial tools but with not well known expenses, and a not very convincing management of pollution peaks. It discusses efforts to be amplified: a wider scope of application of the polluter-pay principle, a better distribution of efforts among activity sectors, an implementation of more ambitious arrangements in the transport sector, and a better communication for a better change acceptance

  6. Translating research into policy: lessons learned from eclampsia treatment and malaria control in three southern African countries

    Directory of Open Access Journals (Sweden)

    Matinhure Sheillah

    2009-12-01

    Full Text Available Abstract Background Little is known about the process of knowledge translation in low- and middle-income countries. We studied policymaking processes in Mozambique, South Africa and Zimbabwe to understand the factors affecting the use of research evidence in national policy development, with a particular focus on the findings from randomized control trials (RCTs. We examined two cases: the use of magnesium sulphate (MgSO4 in the treatment of eclampsia in pregnancy (a clinical case; and the use of insecticide treated bed nets and indoor residual household spraying for malaria vector control (a public health case. Methods We used a qualitative case-study methodology to explore the policy making process. We carried out key informants interviews with a range of research and policy stakeholders in each country, reviewed documents and developed timelines of key events. Using an iterative approach, we undertook a thematic analysis of the data. Findings Prior experience of particular interventions, local champions, stakeholders and international networks, and the involvement of researchers in policy development were important in knowledge translation for both case studies. Key differences across the two case studies included the nature of the evidence, with clear evidence of efficacy for MgSO4 and ongoing debate regarding the efficacy of bed nets compared with spraying; local researcher involvement in international evidence production, which was stronger for MgSO4 than for malaria vector control; and a long-standing culture of evidence-based health care within obstetrics. Other differences were the importance of bureaucratic processes for clinical regulatory approval of MgSO4, and regional networks and political interests for malaria control. In contrast to treatment policies for eclampsia, a diverse group of stakeholders with varied interests, differing in their use and interpretation of evidence, was involved in malaria policy decisions in the three

  7. Relative Returns to Policy Reform : Evidence from Controlled Cross-Country Regressions

    OpenAIRE

    de Castro, Alexandre Samy; Goldin, Ian; Luiz A. Pereira da Silva

    2002-01-01

    The authors aim at contributing to understand the dispersion of returns from policy reforms using cross-country regressions. The authors compare the "before reform" with "after reform" GDP growth outcome of countries that undertook import-liberalization and fiscal policy reforms. They survey a large sample (about 54) of developing countries over the period 1980-99. The benefits of openness...

  8. 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.

  9. Solving a Novel Inventory Location Model with Stochastic Constraints and (R,s,S Inventory Control Policy

    Directory of Open Access Journals (Sweden)

    Guillermo Cabrera

    2013-01-01

    Full Text Available We solve a novel inventory-location model with a stochastic capacity constraint based on a periodic inventory control (ILM-PR policy. The ILM-PR policy implies several changes with regard to other previous models proposed in the literature, which consider continuous review as their inventory policy. One of these changes is the inclusion of the undershoot concept, which has not been considered in previous ILM models in the literature. Based on our model, we are able to design a distribution network for a two-level supply chain, addressing both warehouse location and customer assignment decisions, whilst taking into consideration several aspects of inventory planning, in particular, evaluating the impact of the inventory control review period on the network configuration and system costs. Because the model is a very hard-to solve combinatorial nonlinear optimisation problem, we implemented two heuristics to solve it, namely, Tabu Search and Particle Swarm Optimisation. These approaches were tested over small instances in which they were able to find the optimal solution in just a few seconds. Because the model is a new one, a set of medium-size instances is provided that can be useful as a benchmark in future research. The heuristics showed a good convergence rate when applied to those instances. The results confirm that decision making over the inventory control policy has effects on the distribution network design.

  10. 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

  11. Factors that associated with TB patient admission rate and TB inpatient service cost: a cross-sectional study in China

    Institute of Scientific and Technical Information of China (English)

    Hongyan Hu; Jiaying Chen; Kaori D.Sato; Yang Zhou; Hui Jiang; Pingbo Wu; Hong Wang

    2016-01-01

    Background:China has recently adopted the "TB designated hospital model" to improve the quality of tuberculosis (TB) treatment and patient management.Considering that inpatient service often results in high patient financial burden,and therefore influences patient adherence to treatment,it is critical to better understand the TB patient admission rate and TB inpatient service cost,as well as their influential factors in this new model.Methods:Quantitative and qualitative studies were conducted in two cities,Hanzhong in Shaanxi Province and Zhenjiang in Jiangsu Province,in China.Quantitative data were obtained from a sample survey of 533 TB patients and TB inpatient records from 2010-2012 in six county designated hospitals.Qualitative information was obtained through interviews with key stakeholders (40 key informant interviews,14 focus group discussions) and reviews of health policy documents in study areas.Both univariate and multivariate statistical analyses were applied for the quantitative analysis,and the thematic framework approach was applied for the qualitative analysis.Results:The TB patient admission rates in Zhenjiang and Hanzhong were 54.8 and 55.9 %,respectively.Qualitative analyses revealed that financial incentives,misunderstanding of infectious disease control and failure of health insurance regulations were the key factors associated with the admission rates and medical costs.Quantitative analyses found differences in hospitalization rate existed among patients with different health insurance and patients from different counties.Average medical costs for TB inpatients in Jurong and Zhenba were 7,215 CNY and 4,644 CNY,which was higher than the 5,500 CNY and 3,800 CNY limits set by the New Rural Cooperative Medical System.No differences in medical cost or length of stay were found between patients with and without comorbidities in county-level hospitals.Conclusions:TB patient admission rates and inpatient service costs were relatively high

  12. 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.

  13. 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. ...

  14. Online adaptive policy learning algorithm for H∞ state feedback control of unknown affine nonlinear discrete-time systems.

    Science.gov (United States)

    Zhang, Huaguang; Qin, Chunbin; Jiang, Bin; Luo, Yanhong

    2014-12-01

    The problem of H∞ state feedback control of affine nonlinear discrete-time systems with unknown dynamics is investigated in this paper. An online adaptive policy learning algorithm (APLA) based on adaptive dynamic programming (ADP) is proposed for learning in real-time the solution to the Hamilton-Jacobi-Isaacs (HJI) equation, which appears in the H∞ control problem. In the proposed algorithm, three neural networks (NNs) are utilized to find suitable approximations of the optimal value function and the saddle point feedback control and disturbance policies. Novel weight updating laws are given to tune the critic, actor, and disturbance NNs simultaneously by using data generated in real-time along the system trajectories. Considering NN approximation errors, we provide the stability analysis of the proposed algorithm with Lyapunov approach. Moreover, the need of the system input dynamics for the proposed algorithm is relaxed by using a NN identification scheme. Finally, simulation examples show the effectiveness of the proposed algorithm. PMID:25095274

  15. Tradable Refugee-Admission Quotas (TRAQs), the Syrian crisis and the new European agenda on migration

    OpenAIRE

    Fernández-Huertas Moraga, Jesús; Rapoport, Hillel

    2015-01-01

    First online: 27 November 2015 The Syrian Civil War gave rise to the largest refugee flight reaching Europe since the Yugoslavian wars in the 1990s. The crisis evidenced the deficiencies of the European Union Asylum Policy, which struggled both to offer solutions to Syrian refugees and to efficiently allocate costs across Member States. We draw on previous theoretical work to simulate how a system of tradable refugee-admission quotas coupled with a matching mechanism assigning refugees to ...

  16. Revisiting sub-Saharan African countries' drug problems: health, social, economic costs, and drug control policy.

    Science.gov (United States)

    Affinnih, Yahya H

    2002-02-01

    This article takes an international perspective on the drug problem in sub-Saharan Africa. This analysis borrows ideas from physical and economic geography as a heuristic device to conceptualize the global narcoscapes in which drug trafficking occurs. Both the legitimate and the illegal drug trade operate within the same global capitalist system and draw on the same technological innovations and business processes. Central to the paper's argument is evidence that sub-Saharan African countries are now integrated into the political economy of drug consumption due to the spill-over effect. These countries are now minor markets for "hard drugs" as the result of the activities of organizations and individual traffickers that use Africa as a staging point in their trade with Europe and the United States. As a result, sub-Saharan African countries have drug consumption problems that were essentially absent prior to 1980, along with associated health, social, and economic costs. The emerging drug problem has forced African countries to develop their own drug control policy. The sub-Saharan African countries mentioned below vary to some extent in the level of drug use and misuse problems: Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mozambique, Reunion, Rwanda, Seychelles, Somalia, Tanzania, Uganda, Zambia, Angola, Cameroon, Central African Republic, Chad, Congo, Congo (Zaire), Equatorial Guinea, Gabon, Sao Tome and Principe, Botswana, Lesotho, Namibia, South Africa, Swaziland, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire, Gambia, Ghana, Guinea, Guinea Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, and Togo. As part of this effort, African countries are assessing the health, social, and economic costs of drug-use-related problems to pinpoint methods which are both effective and inexpensive, since their budgets for social programs are severely constrained. Many have progressed to the point of adopting anti

  17. 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 ...

  18. 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...

  19. Influence of ICU-bed availability on ICU admission decisions

    OpenAIRE

    Robert, René; Coudroy, Rémi; Ragot, Stéphanie; Lesieur, Olivier; Runge, Isabelle; Souday, Vincent; Desachy, Arnaud; Gouello, Jean-Paul; Hira, Michel; Hamrouni, Mouldi; Reignier, Jean

    2015-01-01

    Background The potential influence of bed availability on triage to intensive care unit (ICU) admission is among the factors that may influence the ideal ratio of ICU beds to population: thus, high bed availability (HBA) may result in the admission of patients too well or too sick to benefit, whereas bed scarcity may result in refusal of patients likely to benefit from ICU admission. Methods Characteristics and outcomes of patient admitted in four ICUs with usual HBA, defined by admission ref...

  20. The impact of consumer returns policies on consignment contracts with inventory control

    DEFF Research Database (Denmark)

    Hu, W.; Li, Y.; Govindan, Kannan

    2014-01-01

    retailer sets her retail price for selling the product. The vendor gets paid based on net sold units and salvages unsold units as well as returned items in a secondary market. Under the framework, we study and compare two different consignment arrangements: the retailer/vendor manages consignment inventory...... (RMCI/VMCI) programs. To study the impact of return policy, we discuss a consignment contract without return policy as a benchmark. We show that whether or not the vendor offers a return policy, it is always beneficial for the channel to delegate the inventory decision to the vendor. We find that the...

  1. 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…

  2. 22 CFR 142.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Admissions and recruitment. 142.42 Section 142... 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 by a recipient to...

  3. 7 CFR 15b.30 - Admissions and recruitment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Admissions and recruitment. 15b.30 Section 15b.30... ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Postsecondary Education § 15b.30 Admissions and recruitment... be subjected to discrimination in admission or recruitment by a recipient to which this...

  4. 45 CFR 1170.42 - Admissions and recruitment.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Admissions and recruitment. 1170.42 Section 1170... FEDERALLY ASSISTED PROGRAMS OR ACTIVITIES Postsecondary Education § 1170.42 Admissions and recruitment. (a... subjected to discrimination in admission or recruitment by a recipient to which this subpart applies....

  5. 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...

  6. 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…

  7. 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)

  8. 7 CFR 15a.22 - Preference in admission.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Preference in admission. 15a.22 Section 15a.22... Prohibited § 15a.22 Preference in admission. A recipient to which the subpart applies shall not give preference to applicants for admission, on the basis of attendance at any educational institution or...

  9. 10 CFR 5.305 - Preference in admission.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Preference in admission. 5.305 Section 5.305 Energy... Prohibited § 5.305 Preference in admission. A recipient to which §§ 5.300 through 5.310 apply shall not give preference to applicants for admission, on the basis of attendance at any educational institution or...

  10. 14 CFR 1253.305 - Preference in admission.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Preference in admission. 1253.305 Section... on the Basis of Sex in Admission and Recruitment Prohibited § 1253.305 Preference in admission. A recipient to which §§ 1253.300 through 1253.310 apply shall not give preference to applicants for...

  11. 45 CFR 618.305 - Preference in admission.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false Preference in admission. 618.305 Section 618.305... Discrimination on the Basis of Sex in Admission and Recruitment Prohibited § 618.305 Preference in admission. A recipient to which §§ 618.300 through 618.310 apply shall not give preference to applicants for...

  12. 29 CFR 36.305 - Preference in admission.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Preference in admission. 36.305 Section 36.305 Labor Office... Prohibited § 36.305 Preference in admission. A recipient to which §§ 36.300 through 36.310 apply shall not give preference to applicants for admission, on the basis of attendance at any educational...

  13. 13 CFR 113.305 - Preference in admission.

    Science.gov (United States)

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Preference in admission. 113.305... Discrimination on the Basis of Sex in Admission and Recruitment Prohibited § 113.305 Preference in admission. A recipient to which §§ 113.300 through 113.310 apply shall not give preference to applicants for...

  14. 44 CFR 19.305 - Preference in admission.

    Science.gov (United States)

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Preference in admission. 19... Recruitment Prohibited § 19.305 Preference in admission. A recipient to which §§ 19.300 through 19.310 apply shall not give preference to applicants for admission, on the basis of attendance at any...

  15. Diagnostic Assessment of the Difficulty Using Direct Policy Search in Many-Objective Reservoir Control

    Science.gov (United States)

    Zatarain-Salazar, J.; Reed, P. M.; Herman, J. D.; Giuliani, M.; Castelletti, A.

    2014-12-01

    Globally reservoir operations provide fundamental services to water supply, energy generation, recreation, and ecosystems. The pressures of expanding populations, climate change, and increased energy demands are motivating a significant investment in re-operationalizing existing reservoirs or defining operations for new reservoirs. Recent work has highlighted the potential benefits of exploiting recent advances in many-objective optimization and direct policy search (DPS) to aid in addressing these systems' multi-sector demand tradeoffs. This study contributes to a comprehensive diagnostic assessment of multi-objective evolutionary optimization algorithms (MOEAs) efficiency, effectiveness, reliability, and controllability when supporting DPS for the Conowingo dam in the Lower Susquehanna River Basin. The Lower Susquehanna River is an interstate water body that has been subject to intensive water management efforts due to the system's competing demands from urban water supply, atomic power plant cooling, hydropower production, and federally regulated environmental flows. Seven benchmark and state-of-the-art MOEAs are tested on deterministic and stochastic instances of the Susquehanna test case. In the deterministic formulation, the operating objectives are evaluated over the historical realization of the hydroclimatic variables (i.e., inflows and evaporation rates). In the stochastic formulation, the same objectives are instead evaluated over an ensemble of stochastic inflows and evaporation rates realizations. The algorithms are evaluated in their ability to support DPS in discovering reservoir operations that compose the tradeoffs for six multi-sector performance objectives with thirty-two decision variables. Our diagnostic results highlight that many-objective DPS is very challenging for modern MOEAs and that epsilon dominance is critical for attaining high levels of performance. Epsilon dominance algorithms epsilon-MOEA, epsilon-NSGAII and the auto adaptive Borg

  16. PRM:A Resource Management Framework for Policy-driven QoS Control in Enhanced Internets

    Institute of Scientific and Technical Information of China (English)

    FU Xiaoming; ZHANG Yaoxue

    2001-01-01

    The Internet has evolved from a tra-ditional best-effort delivery data network into an en-hanced Internet that can provide a certain Qualityof Service(QoS) mechanisms for applications.How-ever,these QoS mechanisms usually do not take policyfactors into account such as priority and time-of-day.The paper presents a Resource Management Frame-work for Policy-driven QoS control (PRM) in en-hanced internets,which consists of four components:Domain Policy Controller(DPC) resides an adminis-trator domain,Border Resource Manager(BRM) re-sides between adjacent domains,Interior ResourceManagers(IRM) in each router between two BRMswithin the same domain,and Endsystem ResourceManager(ERM) in charge of end-node/host router re-sources.We first introduce challenges and demandsfacing the enhanced internets,then give a formalizeddefinition of policy and describe the functions and in-teraction of components of PRM.Specifically we takeQoS-pricing policy used in a Diff-Serv environmentas an example to illustrate the operational phases of PRM.

  17. Escape and evade control policies for ensuring the physical security of nonholonomic, ground-based, unattended mobile sensor nodes

    Science.gov (United States)

    Mascarenas, David; Stull, Christopher; Farrar, Charles

    2011-06-01

    In order to realize the wide-scale deployment of high-endurance, unattended mobile sensing technologies, it is vital to ensure the self-preservation of the sensing assets. Deployed mobile sensor nodes face a variety of physical security threats including theft, vandalism and physical damage. Unattended mobile sensor nodes must be able to respond to these threats with control policies that facilitate escape and evasion to a low-risk state. In this work the Precision Immobilization Technique (PIT) problem has been considered. The PIT maneuver is a technique that a pursuing, car-like vehicle can use to force a fleeing vehicle to abruptly turn ninety degrees to the direction of travel. The abrupt change in direction generally causes the fleeing driver to lose control and stop. The PIT maneuver was originally developed by law enforcement to end vehicular pursuits in a manner that minimizes damage to the persons and property involved. It is easy to imagine that unattended autonomous convoys could be targets of this type of action by adversarial agents. This effort focused on developing control policies unattended mobile sensor nodes could employ to escape, evade and recover from PIT-maneuver-like attacks. The development of these control policies involved both simulation as well as small-scale experimental testing. The goal of this work is to be a step toward ensuring the physical security of unattended sensor node assets.

  18. Design of Thermal Management Control Policies for Multiprocessors Systems on Chip

    OpenAIRE

    Zanini, Francesco

    2011-01-01

    The contribution of this thesis is a thorough study of thermal aware policy design for MPSoCs. The study includes the modelling of their thermal behavior as well as the improvement and the definition of new thermal management and balancing policies. The work is structured on three main specific disciplines. The areas of contributions are: modeling, algorithms and system design. This thesis extends the field of modeling by proposing new techniques to r...

  19. Injury News Coverage, Relative Concern, and Support for Alcohol-Control Policies: An Impersonal Impact Explanation

    OpenAIRE

    Slater, Michael D.; Hayes, Andrew F.

    2014-01-01

    Research on the impersonal impact hypothesis suggests that news (especially print) coverage of health and safety risks primarily influences perceptions of risk as a societal issue, and not perceptions of personal risk. We propose that the impersonal impact of news—impact primarily on concerns about social-level risks—will mediate effects of news stories on support for public health policies; such effects substantively matter as evidence suggests health policies in turn have important effects ...

  20. Intelligent Control of a Sensor-Actuator System via Kernelized Least-Squares Policy Iteration

    OpenAIRE

    Bo Liu; Sanfeng Chen; Shuai Li; Yongsheng Liang

    2012-01-01

    In this paper a new framework, called Compressive Kernelized Reinforcement Learning (CKRL), for computing near-optimal policies in sequential decision making with uncertainty is proposed via incorporating the non-adaptive data-independent Random Projections and nonparametric Kernelized Least-squares Policy Iteration (KLSPI). Random Projections are a fast, non-adaptive dimensionality reduction framework in which high-dimensionality data is projected onto a random lower-dimension subspace via s...

  1. Monetary Policy Transmission in China: A DSGE Model with Parallel Shadow Banking and Interest Rate Control

    OpenAIRE

    Michael Funke; Petar Mihaylovski; Haibin Zhu

    2015-01-01

    The paper sheds light on the interplay between monetary policy, the commercial banking sector and the shadow banking sector in mainland China by means of a nonlinear stochastic general equilibrium (DSGE) model with occasionally binding constraints. In particular, we analyze the impacts of interest rate liberalization on monetary policy transmission as well as the dynamics of the parallel shadow banking sector. Comparison of various interest rate liberalization scenarios reveals that monetary ...

  2. Monetary policy transmission in China: A DSGE model with parallel shadow banking and interest rate control

    OpenAIRE

    Funke, Michael; Mihaylovski, Petar; ZHU, Haibin

    2015-01-01

    The paper sheds light on the interplay between monetary policy, the commercial banking sector and the shadow banking sector in mainland China by means of a nonlinear stochastic general equilibrium (DSGE) model with occasionally binding constraints. In particular, we analyze the impacts of interest rate liberalization on monetary policy transmission as well as the dynamics of the parallel shadow banking sector. Comparison of various interest rate liberalization scenarios reveals that monetary ...

  3. Assisted living nursing practice: admission assessment.

    Science.gov (United States)

    Mitty, Ethel; Flores, Sandi

    2007-01-01

    Admission assessment, generally conducted by a registered nurse, is autonomous, without opportunity for dialogue with colleagues and other health care professionals and bounded by the nurse's knowledge and skills, state regulations, facility practices, and marketing. The fact that some states permit admission and retention of nursing home level-of-care residents and provision of end-of-life care means that the assessment has to be able to predict the resident's likely trajectory of well-being as well as chronic illness exacerbation. The nurse must have a clear perspective on staff competencies and judge whether additional education or training will be necessary. This article reviews assessment standards of practice as put forth by the American Assisted Living Nurses Association as part of its application for recognition of assisted living nursing as specialty nursing practice by the American Nurses Association. The role of the Licensed Practical Nurse/Licensed Vocational Nurse in resident assessment is also discussed. PMID:17292794

  4. To what extent can China’s near-term air pollution control policy protect air quality and human health? A case study of the Pearl River Delta region

    International Nuclear Information System (INIS)

    Following a series of extreme air pollution events, the Chinese government released the Air Pollution Prevention and Control Action Plan in 2013 (China’s State Council 2013). The Action Plan sets clear goals for key regions (i.e. cities above the prefecture level, Beijing-Tianjin-Hebei Province, the Yangtze River Delta and the Pearl River Delta) and establishes near-term control efforts for the next five years. However, the extent to which the Action Plan can direct local governments’ activities on air pollution control remains unknown. Here we seek to evaluate the air quality improvement and associated health benefits achievable under the Action Plan in the Pearl River Delta (PRD) area from 2012 to 2017. Measure-by-measure quantification results show that the Action Plan would promise effective emissions reductions of 34% of SO2, 28% of NOx, 26% of PM2.5 (particulate matter less than 2.5 μm in diameter), and 10% of VOCs (volatile organic compounds). These emissions abatements would lower the PM2.5 concentration by 17%, surpassing the 15% target established in the Action Plan, thereby avoiding more than 2900 deaths and 4300 hospital admissions annually. We expect the implementation of the Action Plan in the PRD would be productive; the anticipated impacts, however, fall short of the goal of protecting the health of local residents, as there are still more than 33 million people living in places where the annual mean ambient PM2.5 concentrations are greater than 35 μg m−3, the interim target-3 of the World Health Organization (WHO). We therefore propose the next steps for air pollution control that are important not only for the PRD but also for all other regions of China as they develop and implement effective air pollution control policies. (letter)

  5. To what extent can China’s near-term air pollution control policy protect air quality and human health? A case study of the Pearl River Delta region

    Science.gov (United States)

    Jiang, Xujia; Hong, Chaopeng; Zheng, Yixuan; Zheng, Bo; Guan, Dabo; Gouldson, Andy; Zhang, Qiang; He, Kebin

    2015-10-01

    Following a series of extreme air pollution events, the Chinese government released the Air Pollution Prevention and Control Action Plan in 2013 (China’s State Council 2013). The Action Plan sets clear goals for key regions (i.e. cities above the prefecture level, Beijing-Tianjin-Hebei Province, the Yangtze River Delta and the Pearl River Delta) and establishes near-term control efforts for the next five years. However, the extent to which the Action Plan can direct local governments’ activities on air pollution control remains unknown. Here we seek to evaluate the air quality improvement and associated health benefits achievable under the Action Plan in the Pearl River Delta (PRD) area from 2012 to 2017. Measure-by-measure quantification results show that the Action Plan would promise effective emissions reductions of 34% of SO2, 28% of NOx, 26% of PM2.5 (particulate matter less than 2.5 μm in diameter), and 10% of VOCs (volatile organic compounds). These emissions abatements would lower the PM2.5 concentration by 17%, surpassing the 15% target established in the Action Plan, thereby avoiding more than 2900 deaths and 4300 hospital admissions annually. We expect the implementation of the Action Plan in the PRD would be productive; the anticipated impacts, however, fall short of the goal of protecting the health of local residents, as there are still more than 33 million people living in places where the annual mean ambient PM2.5 concentrations are greater than 35 μg m-3, the interim target-3 of the World Health Organization (WHO). We therefore propose the next steps for air pollution control that are important not only for the PRD but also for all other regions of China as they develop and implement effective air pollution control policies.

  6. 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

  7. 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 ...

  8. 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.

  9. 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.

  10. Controlling equine influenza: policy networks and decision-making during the 2007 Australian equine influenza outbreak.

    Science.gov (United States)

    Schemann, K; Gillespie, J A; Toribio, J-A L M L; Ward, M P; Dhand, N K

    2014-10-01

    Rapid, evidence-based decision-making is critical during a disease outbreak response; however, compliance by stakeholders is necessary to ensure that such decisions are effective - especially if the response depends on voluntary action. This mixed method study evaluated technical policy decision-making processes during the 2007 outbreak of equine influenza in Australia by identifying and analysing the stakeholder network involved and the factors driving policy decision-making. The study started with a review of the outbreak literature and published policy documents. This identified six policy issues regarding policy modifications or differing interpretations by different state agencies. Data on factors influencing the decision-making process for these six issues and on stakeholder interaction were collected using a pre-tested, semi-structured questionnaire. Face-to-face interviews were conducted with 24 individuals representing 12 industry and government organizations. Quantitative data were analysed using social network analysis. Qualitative data were coded and patterns matched to test a pre-determined general theory using a method called theory-oriented process-tracing. Results revealed that technical policy decisions were framed by social, political, financial, strategic and operational considerations. Industry stakeholders had influence through formal pre-existing channels, yet specific gaps in stakeholder interaction were overcome by reactive alliances formed during the outbreak response but outside the established system. Overall, the crisis management system and response were seen as positive, and 75-100% of individuals interviewed were supportive of, had interest in and considered the outcome as good for the majority of policy decisions, yet only 46-75% of those interviewed considered that they had influence on these decisions. Training to increase awareness and knowledge of emergency animal diseases (EADs) and response systems will improve stakeholder

  11. Intention to quit among Indian tobacco users: Findings from International Tobacco Control Policy evaluation India pilot survey

    OpenAIRE

    N S Surani; P C Gupta; Fong, T G.; M S Pednekar; A C Quah; M Bansal-Travers

    2012-01-01

    Introduction: Tobacco users face barriers not just in quitting, but also in thinking about quitting. The aim of this study was to understand factors encouraging intention to quit from the 2006 International Tobacco Control Policy (TCP) Evaluation India Pilot Study Survey. Materials and Methods: A total of 764 adult respondents from urban and rural areas of Maharashtra and Bihar were surveyed through face-to-face individual interviews, with a house-to-house approach. Dependent variable was "in...

  12. A Few More Laps to Go: Tobacco Industry Political Influence, Public Health Advocacy and Tobacco Control Policy Making in Indiana

    OpenAIRE

    Rosenbaum, Daniel J. BA; Barnes, Richard L JD; Glantz, Stanton A. PhD

    2011-01-01

    Tobacco policy has been an issue in Indiana since 1893, when the legislature passed a law prohibiting selling tobacco to people under 16. Beginning as early as 1969, Indiana General Assembly members and tobacco control advocates launched uncoordinated efforts to pass a law restricting smoking in government buildings. The tobacco industry responded with a well-financed and well-connected network of lobbyists, campaign contributions and third-party allies which's lobbyists that defeated every s...

  13. Nutrition and physical activity randomized control trial in child care centers improves knowledge, policies, and children's body mass index.

    OpenAIRE

    Alkon, A; Crowley, AA; Neelon, SE; Hill, S.; Pan, Y.; Nguyen, V.; Rose, R.; Savage, E; Forestieri, N; Shipman, L; Kotch, JB

    2014-01-01

    BACKGROUND: To address the public health crisis of overweight and obese preschool-age children, the Nutrition And Physical Activity Self Assessment for Child Care (NAP SACC) intervention was delivered by nurse child care health consultants with the objective of improving child care provider and parent nutrition and physical activity knowledge, center-level nutrition and physical activity policies and practices, and children's body mass index (BMI). METHODS: A seven-month randomized control tr...

  14. ESS versus NVZ – The Cost-Effectiveness of Command-and-Control versus Agreement Based Policy Instruments

    OpenAIRE

    Sauer, Johannes; Walsh, John

    2011-01-01

    This study empirically investigates the cost-effectiveness of different agri-environmental policy instruments. We compare the Environment Stewardship Scheme (ESS) as an example for a management agreement type instrument, to the Nitrate Vulnerable Zones (NVZ) as an example for a command-and-control type instrument. Both instruments are currently applied in the UK. Based on a simple cost model considering also relevant transaction costs and risk we use different regression and resampling techni...

  15. 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...

  16. 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.

  17. A livelock control policy for a flexible manufacturing system modeling with a subclass of generalized Petri nets

    Directory of Open Access Journals (Sweden)

    C.Q. Hou

    2014-12-01

    Full Text Available Livelocks, like deadlocks, can result in the serious problems in running process of flexible manufacturing systems (FMSs as well. Current deadlock control policies based on the approaches of siphon detection and control, cannot cope with livelocks in a system of sequential systems with shared resources (S4R, a typical subclass of Petri nets that can model FMSs. On the basis of the mixed integer programming method, this study proposes a livelock control policy (LCP that can not only solve the new smart siphons (NSSs associated with livelocks or deadlocks in an S4R system directly, but also make the solved NSSs max′-controlled by adding the corresponding control places (CPs. As a result, an original S4R system with livelocks or deadlocks can be turned into the live controlled one in which no NSSs can be found. The related theoretical analysis and several examples are given to demonstrate the proposed LCP. Compared with the existing methods in the literature, the proposed one is more general and powerful.

  18. Control of parallel non-observable queues: Asymptotic equivalence and optimality of periodic policies

    Directory of Open Access Journals (Sweden)

    Jonatha Anselmi

    2015-12-01

    Full Text Available We consider a queueing system composed of a dispatcher that routes jobs to a set of non-observable queues working in parallel. In this setting, the fundamental problem is which policy should the dispatcher implement to minimize the stationary mean waiting time of the incoming jobs. We present a structural property that holds in the classic scaling of the system where the network demand (arrival rate of jobs grows proportionally with the number of queues. Assuming that each queue of type r is replicated k times, we consider a set of policies that are periodic with period k∑rpr and such that exactly pr jobs are sent in a period to each queue of type r. When k→∞, our main result shows that all the policies in this set are equivalent, in the sense that they yield the same mean stationary waiting time, and optimal, in the sense that no other policy having the same aggregate arrival rate to all queues of a given type can do better in minimizing the stationary mean waiting time. This property holds in a strong probabilistic sense. Furthermore, the limiting mean waiting time achieved by our policies is a convex function of the arrival rate in each queue, which facilitates the development of a further optimization aimed at solving the fundamental problem above for large systems.

  19. A Community-Driven Approach to Identifying “Winnable” Policies Using the Centers for Disease Control and Prevention’s Common Community Measures for Obesity Prevention

    OpenAIRE

    Jilcott Pitts, Stephanie B.; Whetstone, Lauren M.; Wilkerson, Jean R.; Smith, Tosha W.; Ammerman, Alice S.

    2012-01-01

    Federally funded, community-based participatory research initiatives encourage the development and implementation of obesity prevention policies. In 2009, the Centers for Disease Control and Prevention (CDC) published the Common Community Measures for Obesity Prevention (COCOMO), which include recommended strategies and measures to guide communities in identifying and evaluating environmental and policy strategies to prevent obesity. Agreeing on "winnable" policy issues can be challenging for...

  20. Trust Evolution Policies for Security in Collaborative Ad Hoc Applications

    DEFF Research Database (Denmark)

    Gray, Elizabeth; Jensen, Christian D.; Connell, Paul O;

    2006-01-01

    information about other users and the context in which the interaction takes place. We have implemented an access control mechanism based on the human notion of trust, where recommendations or initial participation in low risk interactions will allow entities to slowly build trust in each other. As the trust...... between two entities grows, interactions that entail a higher degree of risk may be allowed to proceed. We have used this mechanism in a simple role-based access control mechanism that uses trust to assign roles to users in a distributed blackjack card game application. This application allows us to...... admission policies in a manner similar to what would be expected from human trust assessment. This indicates that trust evolution policies can replace explicit human intervention in application scenarios that are similar to the evaluated prototype....

  1. 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 grade-based admissions procedure. Finally, students admitted through the MMI scored significantly higher on academic learning self-efficacy and critical thinking compared to students selected by grades. The implications for higher education admissions are discussed....... academic achievement after one and two years of study. The participants consisted of the entire population of 422 psychology students who were admitted to the University of Southern Denmark between 2010 and 2013. The results showed significantly lower drop-out rates after the first year of study, and non...

  2. Market-Based Policy Options to Control U.S. Greenhouse Gas Emissions

    OpenAIRE

    Metcalf, Gilbert E.

    2009-01-01

    The United States is moving closer to enacting a policy to reduce domestic emissions of greenhouse gases. A key element in any plan to reduce emissions will be to place a price on greenhouse gas emissions. This paper discusses the different approaches that can be taken to price emissions and assesses their strengths and weaknesses.

  3. Issues and considerations on the development of an institutional controls policy for uranium mines within Northern Saskatchewan

    International Nuclear Information System (INIS)

    Institutional control of a mine site is required to ensure long-term public safety and environmental protection once responsibility for a decommissioned uranium mine site reverts back to the Crown. During the exploration, development, operation and decommissioning phases of a uranium mine's life cycle, public safety and environmental protection are ensured through the Federal and Provincial Environmental Assessment Review process, regulatory permitting and compliance monitoring by the province. However, at present, there is no clear provincial policy with respect to a proponent's application for release from a reclaimed and decommissioned site, and the resulting provincial responsibility for the long-term management and maintenance of the site once a release has been granted. Another policy issue has been identified with respect to the long-term institutional control of previously abandoned uranium mine sites. A number of issues are being considered by the Government of Saskatchewan in developing a policy which addresses the needs of the people of Saskatchewan and which is consistent with the intent of the commitments made by Canada through its ratification of the International Atomic Energy Agency's (IAEA) Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management. (author)

  4. 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...

  5. The Discursive Construction of EU Counter-Terrorism Policy: Writing the ‘Migrant Other’, Securitisation and Control

    Directory of Open Access Journals (Sweden)

    Christopher Baker-Beall

    2009-08-01

    Full Text Available This article argues that the EU counter-terrorism policy reflects a deep-rooted mistrust or fear of the ‘migrant other’. The first half of the article focuses on the discursive construction of terrorism and the concept of securitisation. Drawing on Foucault and in line with scholars such as Campbell (1992, Milliken (1999 and Hülsse and Spencer (2008 the concept of discourse advocated here is one that is above individual discourse participant; the EU is a place where power/knowledge meets and is refracted back into social and political life. An alternative conception of securitisation is offered in order to demonstrate the processes involved in the discursive construction of the ‘migrant other’ as a security threat. The second half of the article will identify two meta-narratives linked to the construction of the ‘migrant other’ within the EU counter-terrorism policy. The first of these narratives constructs the ‘terrorist other’ as a threat to the globalised, ‘open’ society of the EU. This has the implicit effect of constructing and conflating the ‘migrant other’ with the threat of terrorism. The second meta-narrative that will provide the focus of analysis is a contingency-based discourse that constructs the ‘migrant other’ as in need of control in order to prevent the possibility of future terrorist attacks. Having identified these two narratives they will then be subject to a first and second level critical discourse analysis in order to analyse how discursive practices work internally within the EU counter-terrorism policy texts; and the broader political and ethical consequences of the discursive representations identified within the texts. The article concludes by arguing that the impact of the discursive construction of EU counter-terrorism policy is the securitisation of migration and asylum policy and the normalisation of the ‘migrant other’ as a security threat.

  6. Control of Groundwater Pollution from Animal Feeding Operations: A Farm-Level Dynamic Model for Policy Analysis

    Science.gov (United States)

    Wang, J.; Baerenklau, K.

    2012-12-01

    Consolidation in livestock production generates higher farm incomes due to economies of scale, but it also brings waste disposal problems. Over-application of animal waste on adjacent land produces adverse environmental and health effects, including groundwater nitrate pollution. The situation is particularly noticeable in California. In respond to this increasingly severe problem, EPA published a type of command-and-control regulation for concentrated animal feeding operations (CAFOs) in 2003. The key component of the regulation is its nutrient management plans (NMPs), which intend to limit the land application rates of animal waste. Although previous studies provide a full perspective on potential economic impacts for CAFOs to meet nutrient standards, their models are static and fail to reflect changes in management practices other than spreading manure on additional land and changing cropping patterns. We develop a dynamic environmental-economic modeling framework for representative CAFOs. The framework incorporates four models (i.e., animal model, crop model, hydrologic model, and economic model) that include various components such as herd management, manure handling system, crop rotation, water sources, irrigation system, waste disposal options, and pollutant emissions. We also include the dynamics of soil characteristics in the rootzone as well as the spatial heterogeneity of the irrigation system. The operator maximizes discounted total farm profit over multiple periods subject to environmental regulations. Decision rules from the dynamic optimization problem demonstrate best management practices for CAFOs to improve their economic and environmental performance. Results from policy simulations suggest that direct quantity restrictions of emission or incentive-based emission policies are much more cost-effective than the standard approach of limiting the amount of animal waste that may be applied to fields (as shown in the figure below); reason being

  7. Admission criteria and diversity in medical school

    DEFF Research Database (Denmark)

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

    2013-01-01

    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...... (grade-based or attribute-based) had no statistically significant effect on the social diversity of medical students admitted to USD. Discussion: It may be a myth that attribute-based admission widens access and increases social diversity. To the contrary, there is evidence that combining grade...

  8. Admissible submonoids of Artin-Tits monoids

    OpenAIRE

    Castella, Anatole

    2008-01-01

    We show the analogue of Muhlherr's [Coxeter groups in Coxeter groups, Finite Geom. and Combinatorics, Cambridge Univ. Press (1993), 277-287] for Artin-Tits monoids, and for Artin-Tits groups of spherical type. That is, the submonoid (resp. subgroup) of an Artin-Tits monoid (resp. group of spherical type) induced by an admissible partition of the Coxeter graph is an Artin-Tits monoid (resp. group). This generalizes and unifies the situation of the submonoid (resp. subgroup) of fixed elements o...

  9. College-age twins: university admission policies / twin research: birth weight and neuromotor performance; transfusion syndrome markers; vanishing twins and fetal sex determination; mz twin discordance for wilson's disease / media: big at birth; planned separation of conjoined twins; x factor twins; Cinema: the identical.

    Science.gov (United States)

    Segal, Nancy L

    2014-12-01

    There is a lack of research findings addressing the unique college admissions issues faced by twins and other multiples. The advantages and disadvantage twins face, as reported by college administrators, twins and families are reviewed. Next, recent research addressing twins' birth weight and neuromotor performance, transfusion syndrome markers, the vanishing twin syndrome and monozygotic (MZ) twin discordance for Wilson's disease is described. News items concerning the birth of unusually large twins, the planned separation of conjoined twins, twin participants in the X Factor games and a film, The Identical, are also summarized. PMID:25331364

  10. Bar Admission--Default on Student Loan Warrants Denial of Admission to Minnesota Bar.

    Science.gov (United States)

    William Mitchell Law Review, 1980

    1980-01-01

    The Minnesota Supreme Court upheld a decision that student loan default, and subsequent dismissal through bankruptcy, is sufficient reason to deny a law student's bar admission. The bar's requirement of good moral character was interpreted as financial integrity in the Gahan case. (MSE)

  11. 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…

  12. Intelligent Decision Support Systems For Admission Management In Higher Education Institutes

    Directory of Open Access Journals (Sweden)

    Rajan Vohra

    2011-10-01

    Full Text Available On the basis of their use, the DSS has received positive feedback from the University's decision makers. Making use of Intelligent Decision Support Systems (IDSS technologies suited to provide decision support in the higher education environments, by generating and presenting relevant information and knowledge which are helpful in taking the decision regarding admission management in higher education colleges or universities. The university decision makers' needs and the DSS components are identified with the help of survey done. In this paper the components of a decision support system (DSS for developing student admission policies in higher education institute or in the university and the architecture about DSS based on ERP are proposed followed by how intelligent DSS in conjunction with ERP helps to overcome the drawbacks , if ERP is used alone in higher education institutes.

  13. Intelligent Decision Support Systems For Admission Management In Higher Education Institutes

    Directory of Open Access Journals (Sweden)

    Rajan Vohra

    2011-11-01

    Full Text Available On the basis of their use, the DSS has received positive feedback from the University's decision makers. Making use of Intelligent Decision Support Systems (IDSS technologies suited to provide decision support in the higher education environments, by generating and presenting relevant information and knowledge which are helpful in taking the decision regarding admission management in higher education colleges or universities. The university decision makers' needs and the DSS components are identified with the help of survey done. In this paper the components of a decision support system (DSS for developing student admission policies in higher education institute or in the university and the architecture about DSS based on ERP are proposed followed by how intelligent DSS in conjunction with ERP helps to overcome the drawbacks , if ERP is used alone in higher education institutes.

  14. The Impact of Price, Availability, and Alcohol Control Policies on Binge Drinking in College

    OpenAIRE

    Frank J. Chaloupka; Henry Wechsler

    1995-01-01

    The effects of beer prices, alcohol availability, and policies related to driving under the influence of alcohol on drinking and binge drinking among youths and young adults are estimated using data from a nationally representative survey of students in U.S. colleges and universities. Drinking participation, participation in binge drinking and level of drinking equations are estimated using appropriate econometric methods. The estimates indicate that the drinking practices of college students...

  15. Performance Centered Maintenance as a Core Policy in Strategic Maintenance Control

    OpenAIRE

    Apallius de Vos, Jack I.; Dongen, van, E.

    2015-01-01

    Rolling stock maintenance in the Netherlands traditionally is performed on several levels of complexity and therefore on levels of non-availability and cost. The challenge in optimizing performance and cost of rolling stock maintenance is to integrate the policy on maintenance concepts, maintenance locations and maintenance intervals (what, when & where). NedTrain as a subsidiary of the Netherlands Railways is developing and implementing this improved concept of maintenance. On one hand maint...

  16. Living in Singapore: Housing Policies between Nation Building Processes, Social Control and the Market

    OpenAIRE

    Bocquet, Denis

    2015-01-01

    International audience Housing policies have been at the very core of the national ideology of Singapore since the time of independence in 1965. The task of providing a flat to citizens and permanent residents thanks to the efforts of a public institution has not only been one of pragmatic realism, or an aspect of the application of economic theories pertaining to the sphere of developmentalism, it also constituted a central feature in the collective project of a City-State in which social...

  17. Taking back control of HPC file systems with Robinhood Policy Engine

    OpenAIRE

    Leibovici, Thomas

    2015-01-01

    Today, the largest Lustre file systems store billions of entries. On such systems, classic tools based on namespace scanning become unusable. Operations such as managing file lifetime, scheduling data copies, and generating overall filesystem statistics become painful as they require collecting, sorting and aggregating information for billions of records. Robinhood Policy Engine is an open source software developed to address these challenges. It makes it possible to schedule automatic action...

  18. A Public Policy Approach to Local Models of HIV/AIDS Control in Brazil

    OpenAIRE

    de Assis, Andreia; Costa-Couto, Maria-Helena; Le Loup, Guillaume; Thoenig, Jean-Claude; Fleury, Sonia; Larouzé, Bernard

    2009-01-01

    Objectives. We investigated involvement and cooperation patterns of local Brazilian AIDS program actors and the consequences of these patterns for program implementation and sustainability. Methods. We performed a public policy analysis (documentary analysis, direct observation, semistructured interviews of health service and nongovernmental organization [NGO] actors) in 5 towns in 2 states, Sao Paulo and Para ́ . Results. Patterns suggested 3 models. In model 1, local government, NGOs, and p...

  19. Six-year outcomes in first admission adolescent inpatients: clinical and cognitive characteristics at admission as predictors.

    Science.gov (United States)

    Pogge, David L; Insalaco, Brie; Bertisch, Hilary; Bilginer, Lale; Stokes, John; Cornblatt, Barbara A; Harvey, Philip D

    2008-07-15

    Persistent functional disability is common after even a single psychiatric admission in people with schizophrenia or bipolar disorder, but less is known about other conditions and about adolescent onset patients. This study examined clinical symptoms and cognitive performance at the time of the first admission for the prediction of 6-year outcomes. First admission adolescent patients with a variety of psychiatric diagnoses were assessed with comprehensive clinical ratings of psychopathology, a neuropsychological assessment, and received clinical diagnoses while experiencing their first psychiatric admission. They were contacted 6 years after discharge and examined with a structured assessment of psychiatric symptoms and functioning. Despite the low levels of overall impairment at follow-up, at least 20% of the variance in depression, psychosis, poor peer relationships and poor school attendance 6 years after the hospital admission were predicted by information collected during the hospitalization. Attentional deficits during admission predicted the presence of psychosis at follow-up more substantially than psychotic symptoms during admission, as well as predicting risk for relapse. Attentional deficits during a first psychiatric admission predicted risk for manifesting psychosis at 6-year follow-up to a more substantial degree than either a psychosis diagnosis or psychotic symptoms at admission. In contrast to psychosis, depression at follow-up was predicted by admission symptomatology, but not by cognitive deficits. PMID:18534688

  20. Intelligent Control of a Sensor-Actuator System via Kernelized Least-Squares Policy Iteration

    Directory of Open Access Journals (Sweden)

    Bo Liu

    2012-02-01

    Full Text Available In this paper a new framework, called Compressive Kernelized Reinforcement Learning (CKRL, for computing near-optimal policies in sequential decision making with uncertainty is proposed via incorporating the non-adaptive data-independent Random Projections and nonparametric Kernelized Least-squares Policy Iteration (KLSPI. Random Projections are a fast, non-adaptive dimensionality reduction framework in which high-dimensionality data is projected onto a random lower-dimension subspace via spherically random rotation and coordination sampling. KLSPI introduce kernel trick into the LSPI framework for Reinforcement Learning, often achieving faster convergence and providing automatic feature selection via various kernel sparsification approaches. In this approach, policies are computed in a low-dimensional subspace generated by projecting the high-dimensional features onto a set of random basis. We first show how Random Projections constitute an efficient sparsification technique and how our method often converges faster than regular LSPI, while at lower computational costs. Theoretical foundation underlying this approach is a fast approximation of Singular Value Decomposition (SVD. Finally, simulation results are exhibited on benchmark MDP domains, which confirm gains both in computation time and in performance in large feature spaces.

  1. Intelligent control of a sensor-actuator system via kernelized least-squares policy iteration.

    Science.gov (United States)

    Liu, Bo; Chen, Sanfeng; Li, Shuai; Liang, Yongsheng

    2012-01-01

    In this paper a new framework, called Compressive Kernelized Reinforcement Learning (CKRL), for computing near-optimal policies in sequential decision making with uncertainty is proposed via incorporating the non-adaptive data-independent Random Projections and nonparametric Kernelized Least-squares Policy Iteration (KLSPI). Random Projections are a fast, non-adaptive dimensionality reduction framework in which high-dimensionality data is projected onto a random lower-dimension subspace via spherically random rotation and coordination sampling. KLSPI introduce kernel trick into the LSPI framework for Reinforcement Learning, often achieving faster convergence and providing automatic feature selection via various kernel sparsification approaches. In this approach, policies are computed in a low-dimensional subspace generated by projecting the high-dimensional features onto a set of random basis. We first show how Random Projections constitute an efficient sparsification technique and how our method often converges faster than regular LSPI, while at lower computational costs. Theoretical foundation underlying this approach is a fast approximation of Singular Value Decomposition (SVD). Finally, simulation results are exhibited on benchmark MDP domains, which confirm gains both in computation time and in performance in large feature spaces. PMID:22736969

  2. Re-admission after gastro-intestinal surgery.

    Science.gov (United States)

    Gauduchon, L; Sabbagh, C; Regimbeau, J M

    2015-12-01

    Re-admission is a new concept in France, born with the advent of day-case surgery, and defined as any re-admission occurring within 30 days after surgery. The re-admission rate has increasingly come to be considered a criterion of the quality of medical care, by both the medical profession and by insurance companies. This report outlines the generalities and definitions related to re-admission after gastro-intestinal surgery, describes the current situation, rationalizes the value of re-admission rates as a measure of quality of care, details the risk factors for re-admission according to the type of intervention, exposes the possible means of prevention and what to do when a patient comes to the emergency room within 30 days after an operation. PMID:26527260

  3. Chapitre 13. Overview of Current Public Policies

    OpenAIRE

    2013-01-01

    Current Public Policies, Rules and Legislation – especially European ones – With Regard to Highly Skilled Immigration, Nationality Regimes, Stay Rights, etc.Binod Khadria Introduction: Three Levels of Public Policies Policies and programs adopted by the developed receiving countries – mainly the United States, Canada, Australia, and the European Union (EU) countries – for the admission of foreign workers with a view to facilitating and/or regulating high-skill immigration fall into three broa...

  4. National policy for control of radioactive sources and radioactive waste from non-power applications in Lithuania

    International Nuclear Information System (INIS)

    The national policy for control of radioactive sources and radioactive waste from non-power applications is discussed in the paper. The Radiation Protection Centre is the regulatory authority responsible for the radiation protection of the public and of workers using sources of ionizing radiation in Lithuania. One of its responsibilities is the control of radioactive sources from the beginning of their 'life cycle', when they are imported, used, transported and placed as disused into the radioactive waste storage facilities. For the proper implementation of this task, an authorisation system and appropriate radiation protection infrastructure was established in Lithuania. It allows for the control of activities with radioactive sources and radioactive waste in an effective manner. (author)

  5. Anger, Sadness and Fear in Response to Breaking Crime and Accident News Stories: How Emotions Influence Support for Alcohol-Control Public Policies via Concern about Risks

    OpenAIRE

    Solloway, Tyler; Slater, Michael D.; Chung, Adrienne; Goodall, Catherine

    2013-01-01

    Prior research shows that discrete emotions, notably anger and fear, can explain effects of news articles on health and alcohol-control policy support. This study advances prior work by coding expressed emotional responses to messages (as opposed to directly manipulated emotions or forced responses), incorporating and controlling for central thoughts, including sadness (a particularly relevant response to tragic stories), and examining concern’s mediating role between emotion and policy suppo...

  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

    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...... 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...

  8. 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

  9. The complexity of admissible rules of {\\L}ukasiewicz logic

    CERN Document Server

    Jeřábek, Emil

    2011-01-01

    We investigate the computational complexity of admissibility of inference rules in infinite-valued {\\L}ukasiewicz propositional logic (\\L). It was shown in [13] that admissibility in {\\L} is checkable in PSPACE. We establish that this result is optimal, i.e., admissible rules of {\\L} are PSPACE-complete. In contrast, derivable rules of {\\L} are known to be coNP-complete.

  10. Past and future cadmium emissions from municipal solid-waste incinerators in Japan for the assessment of cadmium control policy

    International Nuclear Information System (INIS)

    Highlights: • Cd emissions from municipal solid waste incinerators were estimated for 1970–2030. • Emissions peaked in 1973 (11.1 t) at levels ten times that in 2010 (1.2 t). • In the 1970s, the main source was pigments, but after 2000, it was Ni-Cd batteries. • The effects of two Cd control policies were compared. • Banning Cd use reduced emissions more than intensive collection of batteries. -- Abstract: Cadmium (Cd) is a harmful pollutant emitted from municipal solid-waste incinerators (MSWIs). Cd stack emissions from MSWIs have been estimated between 1970 and 2030 in Japan. The aims of this study are to quantify emitted Cd by category and to analyze Cd control policies to reduce emissions. Emissions were estimated using a dynamic substance flow analysis (SFA) that took into account representative waste treatment flows and historical changes in emission factors. This work revealed that the emissions peaked in 1973 (11.1 t) and were ten times those in 2010 (1.2 t). Emission from MSWIs was two-thirds of that from non-ferrous smelting in 2010. The main Cd emission source was pigment use in the 1970s, but after 2000 it had shifted to nickel-cadmium (Ni-Cd) batteries. Future emissions were estimated for 2030. Compared to the business-as-usual scenario, an intensive collection of used Ni-Cd batteries and a ban on any future use of Ni-Cd batteries will reduce emissions by 0.09 and 0.31 t, respectively, in 2030. This approach enables us to identify the major Cd emission source from MSWIs, and to prioritize the possible Cd control policies

  11. Alignment of policies to maximize the climate benefits of diesel vehicles through control of particulate matter and black carbon emissions

    International Nuclear Information System (INIS)

    Diesel vehicles offer greater fuel-efficiency and lower greenhouse gas emissions at a time when national governments seek to reduce the energy and climate impacts of the vehicle fleet. Policies that promote diesels like preferential fuel taxes, fuel economy standards and greenhouse gas emission standards can produce higher emissions of diesel particulate matter if diesel particulate filters or equivalent emission control technology is not in place. This can undermine the expected climate benefits of dieselization and increase impacts on public health. This paper takes a historical look at Europe to illustrate the degree to which dieselization and lax controls on particulate matter can undermine the potential benefits sought from diesel vehicles. We show that countries on the dieselization pathway can fully capture the value of diesels with the adoption of tailpipe emission standards equivalent to Euro 6 or Tier 2 for passenger cars, and fuel quality standards that limit the sulfur content of diesel fuel to no greater than 15 ppm. Adoption of these policies before or in parallel with adoption of fuel consumption and greenhouse gas standards can avert the negative impacts of dieselization. - Highlights: ► Preferential tax policies have increased the dieselization of some light-duty vehicle fleets. ► Dieselization paired with lax emission standards produces large black carbon emissions. ► Diesel black carbon undermines the perceived climate benefits of diesel vehicles. ► Stringent controls on diesel particulate emissions will also reduce black carbon. ► Euro 6/VI equivalent emission standards can preserve the climate benefits of diesel vehicles

  12. On the Transmission Mechanism of the Chinese Land Policy in Macroeconomic-control: A Theoretical Study Based on Modified IS-LM Model

    Institute of Scientific and Technical Information of China (English)

    Linlin; DIAO; Jinming; YAN

    2014-01-01

    The purposes of this paper are to bring land factor into the general fame of national product and develop a new modified‘IS-LM equilibrium model’,aiming to find out the impacts of land factor on the effective allocation of capital between total supply and total demand constituting gross national product,to analyze the relation mechanism among land factor and macroeconomic variables,and to discuss the theoretical mechanism under which land,fiscal and monetary policy are integrated. Methods employed include econometrics and model analysis. The results indicate that:( i) on the conditions that the equilibrium of supply and demand in land market,the modified IS-LM model taking into account land factor successfully performs transmission mechanism of land policy participation in macroeconomic-control by means of money capital regulation;( ii) the direction and intensity of land policy control are effected by elasticity of land supply and land price,meanwhile different characteristics of land supply elasticity exit in different stages of economic development;( iii) the realization of IS-LM equilibrium requires the aggregate effects of fiscal,monetary and land policy. It is concluded that land policies for macroeconomic-control drives land price higher,and land supply regulation would diminish financial effect. During the economic expansion or recovery period,the effect of expansionary land policy would be counteracted by high land price. During the economic transition or recession period,the government could control economical operation better through tightening land policy.

  13. The Evolution of Political Control of the Romanian Laws. The Stimuli of Assertion of the Control Policy during the Communism

    OpenAIRE

    Mircea Criste

    2010-01-01

    The jurisdictional review, a control carried out by an organ independent in relation to the legislative, seems definitively won for the constitutionalist world. In the absence of expresses dispositions that regulate the control of constitutionality, the judiciary decided that this right belong to him in a very naturally way, as an issue of the separation of power and of the function that he fills. Because he was controlling the acts of the Parliament, the judge won a strong position in relati...

  14. Effect of air pollution on pediatric respiratory emergency room visits and hospital admissions

    Directory of Open Access Journals (Sweden)

    S.C.L. Farhat

    2005-02-01

    Full Text Available In order to assess the effect of air pollution on pediatric respiratory morbidity, we carried out a time series study using daily levels of PM10, SO2, NO2, ozone, and CO and daily numbers of pediatric respiratory emergency room visits and hospital admissions at the Children's Institute of the University of São Paulo Medical School, from August 1996 to August 1997. In this period there were 43,635 hospital emergency room visits, 4534 of which were due to lower respiratory tract disease. The total number of hospital admissions was 6785, 1021 of which were due to lower respiratory tract infectious and/or obstructive diseases. The three health end-points under investigation were the daily number of emergency room visits due to lower respiratory tract diseases, hospital admissions due to pneumonia, and hospital admissions due to asthma or bronchiolitis. Generalized additive Poisson regression models were fitted, controlling for smooth functions of time, temperature and humidity, and an indicator of weekdays. NO2 was positively associated with all outcomes. Interquartile range increases (65.04 µg/m³ in NO2 moving averages were associated with an 18.4% increase (95% confidence interval, 95% CI = 12.5-24.3 in emergency room visits due to lower respiratory tract diseases (4-day moving average, a 17.6% increase (95% CI = 3.3-32.7 in hospital admissions due to pneumonia or bronchopneumonia (3-day moving average, and a 31.4% increase (95% CI = 7.2-55.7 in hospital admissions due to asthma or bronchiolitis (2-day moving average. The study showed that air pollution considerably affects children's respiratory morbidity, deserving attention from the health authorities.

  15. Did the Indian Capital Controls Work as a Tool of Macroeconomic Policy?

    OpenAIRE

    Ila Patnaik; Ajay Shah

    2012-01-01

    The present debate over capital controls emphasizes their potential role as tools for macroeconomic and financial stability. The effectiveness of these tools may depend on whether a country has the legal and administrative machinery to implement capital controls. This paper contributes to the analysis of the costs and benefits of capital controls by studying the experience of India, a country that has a system of capital controls that had never been dismantled. The paper finds that when the c...

  16. Legal and policy options to minimize adverse effects of mosquito control pesticides on Florida's saltwater fisheries

    OpenAIRE

    Tucker, John C.

    1992-01-01

    This report examines the regulation of mosquito control activities in Florida and makes legal and institutional recommendations to improve protection of non-target estuarine and marine organisms. Some of the more important recommendations for modification of mosquito control in Florida include: clarification of ambiguous mosquito control pesticide labels; strengthening of surveillance and reporting requirements; strengthening of enforcement efforts and authority; increased u...

  17. Penetrated system' or normal' state An exploration of INF arms control policy, East-West economic relations, and inter-German policy in the Federal Republic of Germany, 1979-1987

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, C.S.

    1991-01-01

    The thesis explores policy-making processes in the Federal Republic from 1979-1987 in three areas: INF arms control policy, East-West economic relations, and inter-German policy. Each case study assesses the degree of complexity and domestic accountability in policy-making processes and evaluates the relative influence of domestic and external factors on policy choices. It argues that the trends in West German foreign policy toward greater assertiveness reflected the evolution of the FRG as a state, society, and polity. The maturation' of the Federal Republic has introduced greater complexity into foreign policy-making processes, and more frequent societal intervention into what heretofore were elite deliberations. Domestic actors have begun to demand greater accountability, while West German leaders, in turn, have become more assertive and confident in defending German national interests. As the FRG has gained respect and self-respect, it has begun to assume the international role that might be expected of a state of its size, population, geo-political importance, and level of political and economic development. The FRG has become a normal' state.

  18. 'Penetrated system' or 'normal' state? An exploration of INF arms control policy, East-West economic relations, and inter-German policy in the Federal Republic of Germany, 1979-1987

    International Nuclear Information System (INIS)

    The thesis explores policy-making processes in the Federal Republic from 1979-1987 in three areas: INF arms control policy, East-West economic relations, and inter-German policy. Each case study assesses the degree of complexity and domestic accountability in policy-making processes and evaluates the relative influence of domestic and external factors on policy choices. It argues that the trends in West German foreign policy toward greater assertiveness reflected the evolution of the FRG as a state, society, and polity. The 'maturation' of the Federal Republic has introduced greater complexity into foreign policy-making processes, and more frequent societal intervention into what heretofore were elite deliberations. Domestic actors have begun to demand greater accountability, while West German leaders, in turn, have become more assertive and confident in defending German national interests. As the FRG has gained respect and self-respect, it has begun to assume the international role that might be expected of a state of its size, population, geo-political importance, and level of political and economic development. The FRG has become a 'normal' state

  19. Políticas públicas de nutrição para o controle da obesidade infantil Policies on nutrition for controlling childhood obesity

    Directory of Open Access Journals (Sweden)

    Caio Eduardo G Reis

    2011-12-01

    Full Text Available OBJETIVO: Analisar criticamente as políticas públicas de nutrição brasileiras no controle da obesidade infantil. FONTES DE DADOS: Buscaram-se artigos, ensaios, resenhas, resoluções e legislações nas bases SciELO, Lilacs, PubMed, Biblioteca Virtual em Saúde, Sistema de Legislação em Saúde e Legislação em Vigilância Sanitária, que abordavam políticas públicas de nutrição brasileiras no controle da obesidade infantil, publicados entre 1990 e 2010. Foram utilizadas as palavras-chaves: "obesidade", "sobrepeso", "criança", "escolar(es", "políticas públicas", "política de saúde", "política de nutrição", "cantina escolar", "alimentação escolar", "propaganda de alimentos", "publicidade de alimentos", "rótulos alimentares", em português e em inglês. SÍNTESE DOS DADOS: O governo brasileiro, nos últimos anos, tem promulgado ações de promoção de saúde que visam ao combate da obesidade infantil, como o Programa Saúde na Escola, o Programa Nacional de Alimentação Escolar, a Regulamentação dos Alimentos Comercializados nas Cantinas Escolares, o Projeto Escola Saudável, a Promoção da Alimentação Saudável nas Escolas, os Dez Passos para a Promoção da Alimentação Saudável nas Escolas e a Regulamentação de Propaganda e Publicidade de Alimentos. Observa-se a necessidade de implementar e de fiscalizar as leis e regulamentações para o controle da obesidade infantil no Brasil, além de promover a alimentação saudável, nos aspectos que envolvem o público infantil. CONCLUSÕES: O projeto, o planejamento, a implementação e a gestão dessas políticas devem se apoiar na busca da transformação do problema social da obesidade.OBJECTIVE: To analyze the Brazilian nutrition public policies on the control of childhood obesity. DATA SOURCES: Articles, essays, reviews and laws in SciELO, Lilacs, PubMed, Virtual Health Library, System Health Legislation and Sanitary Surveillance Legislation between 1990 and 2010

  20. Optimal Inspection Policy for Three-state Systems Monitored by Variable Sample Size Control Charts

    OpenAIRE

    Wu, Shaomin

    2011-01-01

    This paper presents the expected long-run cost per unit time for a system monitored by an adaptive control chart with variable sample sizes: if the control chart signals that the system is out of control, the sampling which follows will be conducted with a larger sample size. The system is supposed to have three states: in-control, out-of-control, and failed. Two levels of repair are applied to maintain the system. A minor repair will be conducted if an assignable cause is c...

  1. 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

  2. Evaluation of diesel fleet emissions and control policies from plume chasing measurements of on-road vehicles

    Science.gov (United States)

    Lau, Chui Fong; Rakowska, Agata; Townsend, Thomas; Brimblecombe, Peter; Chan, Tat Leung; Yam, Yat Shing; Močnik, Griša; Ning, Zhi

    2015-12-01

    Vehicle emissions are an important source of urban air pollution. Diesel fuelled vehicles, although constituting a relatively small fraction of fleet population in many cities, are significant contributors to the emission inventory due to their often long mileage for goods and public transport. Recent classification of diesel exhaust as carcinogenic by the World Health Organization also raises attention to more stringent control of diesel emissions to protect public health. Although various mandatory and voluntary based emission control measures have been implemented in Hong Kong, there have been few investigations to evaluate if the fleet emission characteristics have met desired emission reduction objectives and if adoption of an Inspection/Maintenance (I/M) programme has been effective in achieving these objectives. The limitations are partially due to the lack of cost-effective approaches for the large scale characterisation of fleet based emissions to assess the effectiveness of control measures and policy. This study has used a plume chasing method to collect a large amount of on-road vehicle emission data of Hong Kong highways and a detailed analysis was carried out to provide a quantitative evaluation of the emission characteristics in terms of the role of high and super-emitters in total emission reduction, impact of after-treatment on the multi-pollutants reduction strategy and the trend of NO2 emissions with newer emission standards. The study revealed that not all the high-emitters are from those vehicles of older Euro emission standards. Meanwhile, there is clear evidence that high-emitters for one pollutant may not be a high-emitter for another pollutant. Multi-pollutant control strategy needs to be considered in the enactment of the emission control policy which requires more comprehensive retrofitting technological solutions and matching I/M programme to ensure the proper maintenance of fleets. The plume chasing approach used in this study also

  3. [Obesity in Mexico: epidemiology and health policies for its control and prevention].

    Science.gov (United States)

    Barquera Cervera, Simón; Campos-Nonato, Ismael; Rojas, Rosalba; Rivera, Juan

    2010-01-01

    Obesity is a major risk factor for developing type 2 diabetes, cardiovascular disease, hypertension, dyslipidemias, musculoskeletal diseases, and certain types of cancer. In Mexico the prevalence of overweight and obesity is 16.7% in preschool children, 26.2% in school children, and 30.9% in adolescents. For adults, the prevalence of overweight and obesity is 39.7 and 29.9%, respectively (ENSANUT 2006). Based on an analysis of the situation in Mexico, the need for a comprehensive, multisectoral, multilevel policy and an effective coordination policy have been clearly identified to achieve changes in eating patterns and physical activity to enable the prevention of chronic diseases and to reduce the prevalence of overweight and obesity The combination of strategies and actions of the Mexican National Agreement for Healthy Nutrition proposed by the federal government proposes among its aims for 2012: a reversal in the prevalence of overweight and obesity for children aged 2-5 years in comparison with ENSANUT to stop the increasing prevalence in this condition for school children and adolescents (aged 5-19 years), and to slow down the increasing prevalence of overweight and obesity in adults. This challenge will require important regulatory actions, efficient and adaptable implementation, and participation of all sectors of society. PMID:21384636

  4. 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.

  5. 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

  6. Neural network based online simultaneous policy update algorithm for solving the HJI equation in nonlinear H∞ control.

    Science.gov (United States)

    Wu, Huai-Ning; Luo, Biao

    2012-12-01

    It is well known that the nonlinear H∞ state feedback control problem relies on the solution of the Hamilton-Jacobi-Isaacs (HJI) equation, which is a nonlinear partial differential equation that has proven to be impossible to solve analytically. In this paper, a neural network (NN)-based online simultaneous policy update algorithm (SPUA) is developed to solve the HJI equation, in which knowledge of internal system dynamics is not required. First, we propose an online SPUA which can be viewed as a reinforcement learning technique for two players to learn their optimal actions in an unknown environment. The proposed online SPUA updates control and disturbance policies simultaneously; thus, only one iterative loop is needed. Second, the convergence of the online SPUA is established by proving that it is mathematically equivalent to Newton's method for finding a fixed point in a Banach space. Third, we develop an actor-critic structure for the implementation of the online SPUA, in which only one critic NN is needed for approximating the cost function, and a least-square method is given for estimating the NN weight parameters. Finally, simulation studies are provided to demonstrate the effectiveness of the proposed algorithm. PMID:24808144

  7. Linking tobacco control policies and practices to early cancer endpoints: Surveillance as an agent for change

    OpenAIRE

    Hartman, Anne M.; Thun, Michael J.; Ballard-Barbash, Rachel

    2008-01-01

    State tobacco control programs provide an important laboratory for the development, implementation, and evaluation of comprehensive tobacco control interventions. Studies have demonstrated that states and municipalities with aggressive tobacco control programs have experienced more rapid decreases in per capita cigarette sales, smoking prevalence, lung cancer, and heart disease than entities without such programs. Despite strong evidence that population-level interventions are critical in ach...

  8. HIV/AIDS and admission to intensive care units: A comparison of India, Brazil and South Africa

    Directory of Open Access Journals (Sweden)

    Kantharuben Naidoo

    2013-03-01

    Full Text Available In resource-constrained settings and in the context of HIV-infected patients requiring intensive care, value-laden decisions by critical care specialists are often made in the absence of explicit policies and guidelines. These are often based on individual practitioners’ knowledge and experience, which may be subject to bias. We reviewed published information on legislation and practices related to intensive care unit (ICU admission in India, Brazil and South Africa, to assess access to critical care services in the context of HIV. Each of these countries has legal instruments in place to provide their citizens with health services, but they differ in their provision of ICU care for HIV-infected persons. In Brazil, some ICUs have no admission criteria, and this decision vests solely on the ‘availability, and the knowledge and the experience’ of the most experienced ICU specialist at the institution. India has few regulatory mechanisms to ensure ICU care for critically ill patients including HIV-infected persons. SA has made concerted efforts towards non-discriminatory criteria for ICU admissions and, despite the shortage of ICU beds, HIV-infected patients have relatively greater access to this level of care than in other developing countries in Africa, such as Botswana. Policymakers and clinicians should devise explicit policy frameworks to govern ICU admissions in the context of HIV status. S Afr J HIV Med 2013;14(1:15-16. DOI:10.7196/SAJHIVMED.887

  9. 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.

  10. Psychosocial impact of alternative management policies for low-grade cervical abnormalities: results from the TOMBOLA randomised controlled trial.

    Directory of Open Access Journals (Sweden)

    Linda Sharp

    -points. CONCLUSIONS: There was no difference in the longer-term psychosocial impact of management policies based on cytological surveillance or initial colposcopy. Policy-makers, clinicians, and women themselves can be reassured that neither management policy has a significantly greater psychosocial cost. TRIAL REGISTRATION: Controlled-Trials.com ISRCTN 34841617.

  11. Win-Win strategies to promote air pollutant control policies and non-fossil energy target regulation in China

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Lining; Patel, Pralit L.; Yu, Sha; Liu, Bo; Mcleod, Jeffrey D.; Clarke, Leon E.; Chen, Wenying

    2016-02-01

    The rapid growth of energy consumption in China has led to increased emissions of air pollutants. As a response, in its 12th Five Year Plan the Chinese government proposed mitigation targets for SO2 and NOx emissions. Herein we have investigated mitigation measures taken in different sectors and their corresponding impacts on the energy system. Additionally, as non-fossil energy development has gained traction in addressing energy and environmental challenges in China, we further investigated the impact of non-fossil energy development on air pollutant emissions, and then explored interactions and co-benefits between these two types of policies. An extended Global Change Assessment Model (GCAM) was used in this study, which includes an additional air pollutant emissions control module coupling multiple end-of-pipe (EOP) control technologies with energy technologies, as well as more detailed end-use sectors in China. We find that implementing EOP control technologies would reduce air pollution in the near future, but with little room left to implement these EOP technologies, other cleaner and more efficient technologies are also effective. These technologies would reduce final energy consumption, increase electricity’s share in final energy, and increase the share of non-fossil fuels in primary energy and electricity consumption. Increasing non-fossil energy usage at China’s proposed adoption rate would in turn also reduce SO2 and NOx emissions, however, the reductions from this policy alone still lag behind the targeted requirements of air pollutant reduction. Fortunately, a combination of air pollutant controls and non-fossil energy development could synergistically help realize the respective individual targets, and would result in lower costs than would addressing these issues separately.

  12. Policy issues on the control of major accident hazards and the new Seveso II directive

    International Nuclear Information System (INIS)

    No one wants a major accident to occur! This paper describes the development of EC policies to convert this simple and obvious fact into a coherent prevention strategy which can deliver a high level of protection throughout the European Community. The Seveso II Directive is described in detail, being the relevant Community Instrument which Member States must implement in their national laws. The need to achieve the correct balance between setting general goals and being over prescriptive is discussed, commensurate with the intent to be flexible but yet consistent and effective at the same time. The main changes from Seveso I are discussed, including requirements related to the operator's management systems, the competent authority's systems for inspection, and information and consultation arrangements with the public. (Copyright (c) 1999 Elsevier Science B.V., Amsterdam. All rights reserved.)

  13. THE COST-EFFECTIVENESS OF ALTERNATIVE EMISSION CONTROL POLICIES IN THE SAN JOAQUIN VALLEY OF CALIFORNIA

    OpenAIRE

    Kim, Hong Jin

    2000-01-01

    This study analyzes the ROG control costs of stationary sources in the San Joaquin Valley of California. The cost-effectiveness of market incentive approaches such as an uniform marketable permit system, localized marketable permit system and an ambient permit system as well as a traditional command-and-control approach are examined.

  14. The Evolution of Political Control of the Romanian Laws. The Stimuli of Assertion of the Control Policy during the Communism

    Directory of Open Access Journals (Sweden)

    Mircea Criste

    2010-03-01

    Full Text Available The jurisdictional review, a control carried out by an organ independent in relation to the legislative, seems definitively won for the constitutionalist world. In the absence of expresses dispositions that regulate the control of constitutionality, the judiciary decided that this right belong to him in a very naturally way, as an issue of the separation of power and of the function that he fills. Because he was controlling the acts of the Parliament, the judge won a strong position in relation to the legislative power. This situation could not be accepted by a powerful legislative. While presenting itself as mandatory of the sovereignty of the people, it claims for him the right to control his own acts.However, in the case of Romania such a manifestation demonstration intervened only in Communist period. After a presentation of the conditions in which the constitutional review is passed to thepolitical, the second part of the article will present how this control is exert by an organ dependent to the Parliament.

  15. 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…

  16. 49 CFR 1114.27 - Request for admission.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 8 2010-10-01 2010-10-01 false Request for admission. 1114.27 Section 1114.27... OF TRANSPORTATION RULES OF PRACTICE EVIDENCE; DISCOVERY Discovery § 1114.27 Request for admission. (a) Availability; procedures for use. Subject to the provisions of § 1114.21(b)(2), a party may serve upon...

  17. 49 CFR 1114.3 - Admissibility of business records.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 8 2010-10-01 2010-10-01 false Admissibility of business records. 1114.3 Section 1114.3 Transportation Other Regulations Relating to Transportation (Continued) SURFACE TRANSPORTATION... § 1114.3 Admissibility of business records. Any writing or record, whether in the form of an entry in...

  18. 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)

  19. 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.

  20. 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…