In this pap er, we propose a class of AP selection algorithms based on the joining STA’s expected throughput by taking into account the above factors. Specifically, we collect a binary-valued local channel occupancy signal, called busy-idle (BI) signal, at each node and require the APs to perio dically broadcast their BI signal together with a quantity that represents TXOPs at the APs. This enables the joining STA to estimate expected throughput for each candidate AP before it selects one. To capture TXOPs at each AP, we propose a few different quantities, including the number of associated STAs, sum of inverse of MAC rates, and the average waiting and idle times.

关键词：无线局域网；802.11；接入点选择；多速率；TXOPs

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In this paper, we present the concept of approximate synchrony, a modeling and verification abstraction for time-synchronized systems. Approximate synchrony is a sound and tunable abstraction. We have implemented approximate synchrony as a part of a model checker and used it to verify the Best Master Clock (BMC) algorithm, the core component of IEEE 1588 precision time protocol and the time-synchronized channel hopping protocol that is part of the IEEE 802.15.4e standard.

关键词：时间同步系统；分布式；IEEE 1588；最佳主时钟算法

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Most patients with multiple myeloma achieve a complete or near complete response following autologous transplantation. However, patients experience disease relapse from a persistent reservoir of chemotherapy resistant disease.

关键词：骨髓瘤;干细胞;疫苗;抗体;能力(数量);细胞(生物学);临床医学;树突结构;疾病;免疫;免疫;免疫学、免疫抑制、免疫疗法;体内分析;模型;肿瘤;患者;储层;耐药性;响应

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CXCR4 and its chemokine ligand CXCL12 are potential targets for molecular therapy of ovarian cancer. Receptor CXCR4 is expressed by ovarian cancer cells in approximately 50% of patients. High levels of CXCL12 are present in ascites of patients with ovarian cancer, providing a local source of chemokine ligand in the tumor microenvironment. CXCL12 signaling through CXCR4 activates pathways that could promote tumor growth, invasion, metastasis, and resistance to chemotherapy. To advance clinical translation of CXCR4 inhibitors for therapy of ovarian cancer, we developed molecular imaging reporters for CXCR4 signaling that can be used for cell-based assays and real-time imaging studies in mouse xenograft models of ovarian cancer. After validating that these reporters correspond with biochemical measures of CXCL12-CXCR4 signaling, we used optical imaging to quantify pharmacodynamics of therapy for CXCR4 targeted inhibitors in mice with ovarian cancer. Treatment studies established that inhibiting CXCR4 prolonged survival of mice with ovarian cancer and potentially could improve treatment efficacy of a standard chemotherapeutic drug, cisplatin.

关键词：细胞(生物学),化疗药物,临床医学;卵巢癌;生物化学;增长(生理学);图像;抑制;分子;肿瘤;光学图像;患者;药理学;电阻(生物学);感觉器官;治疗;光学成像;趋化因子

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Emergency whole blood transfusions may increase the risk of transmitting bloodborne pathogens, including human T-lymphotropic viruses (HTLVs). U.S. military personnel with any medical encounter for HTLV infection during 2000 2008 were identifi ed from surveillance data. Using both inclusive and restrictive case defi nitions, the incidence of diagnoses of HTLV infection was analyzed in relation to demographic factors and prior deployment. Th ere were 247 possible cases of HTLV infection identifi ed, or 1.88 cases per 100, 000 person-years (p-yrs) (95% CI 1.66, 2.13). Seventy of these met the restrictive defi nition, translating to a rate of 0.53 per 100,000 p-yrs (95% CI 0.42, 0.67). Under the restrictive defi nition, a higher rate was noted among females versus males (RR 2.37; 95% CI 1.41, 3.98), service members with a healthcare occupation versus those who are primarily trained to engage in combat (RR 2.54; 95% CI 1.06, 6.10), and service members with any deployment experience (RR 8.98; 95% CI 5.61, 14.37). Th ese fi ndings, and a prior military case report of transfusion-transmitted HTLV-I, suggest a need to better defi ne the epidemiology of HTLV in U.S. military personnel to further ensure emergency transfusion safety.

关键词：输血;传染病;T淋巴细胞;突发事件;流行病学;医学;军事人员;病理;监测;病毒

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No abstract available.

关键词：现役;部署;传染病;嗜肺性军团菌;军事力量(美国),军事人员;泌尿系统;创伤和损伤

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关键词：脊柱,攻击直升机,脖子(解剖);职业医学;疼痛;飞行员;旋转翅膀;Apache,背部疼痛,颈部疼痛纵向研究

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The findings described in the two case reports of malaria on pages 8 to 9 of this issue of the MSMR illustrate what has been previously reported about the frequently prolonged latent period between exposure to Korean strains of Plasmodium vivax and the subsequent clinical presentation with overt malaria (see pages 8-14).1 Both cases experienced delays of at least fi ve months (since leaving Korea) and as long as 10 months (since their likely exposure to malaria vectors) before the onset of their symptoms. Review of their electronic health records uncovered no evidence of prior clinical symptomatology consistent with malaria. Th e length of the latency period may have some basis not only in the strain of P. vivax, but also in the relative youth and general excellent physical condition of these two soldiers. Moreover, it is possible that mild symptomatology was not reported by the soldiers or observed in clinic.

关键词：临床医学;诊断(医学);接触(生理学);疟疾;军队人员;健康;医学;门诊诊所,间日疟原虫;记录;报告;监测

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U.S. veterans who were assigned at McMurdo Station, Antarctica, from 1962 to 1979, have expressed concern that their health may have been affected by radiological releases from an onsite nuclear power plant. This report presents the results of the Department of Defense's radiation dose assessment for McMurdo Station veterans who were not monitored for occupational radiation exposure. This assessment determined that the radiation doses were low and the associated probability that disease could have arisen from these doses is also low. Finally, recommendations are provided for McMurdo Station veterans, their dependents, the Department of Veterans Affairs (VA), and the Naval Dosimetry Center regarding the VA radiogenic disease claims process.

关键词：辐射剂量;南极地区;接触(生理学);监测;核电站;职业医学;放射性废物;安全;标准;退伍军人(军人);水;退役;剂量重建;麦克默多站

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No abstract available.

关键词：诊断(医学),症状和体征;链球菌;创伤性脑损伤;阿富汗冲突;武器(解剖);人口;医疗疏散

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