云南省边境地区疟疾防治资源分配分析

目的 分析云南省边境地区疟疾资源分配状况与疟疾传播的关系，为合理分配疟疾资源提供依据。方法 收集中老、中缅、中越边境地区有关疟疾统计资料，研究导致疟疾流行的危险因素。结果 结果表明来自国外和国内的波及效应数值和强度效应综合反映了这些边境县所面临的潜在疟疾传播危险因素。结论 该地区的疟疾防治资源分配不合理，有待进一步改善。     

The parenting-crime connection

This paper examines delinquency as it relates to family influences.     

陕西省2000～2002年麻疹流行病学分析及控制策略探讨

为了解陕西省麻疹流行状况 ,以加速控制麻疹 ,对陕西省 2 0 0 0～ 2 0 0 2年麻疹发病资料进行流行病学分析。结果显示 :陕西省 2 0 0 0～ 2 0 0 2年麻疹年平均发病率比 1997～ 1999年上升了 6 5 7%。病例分布广泛 ,流行模式为爆发和散发并存 ,局部麻疹爆发影响着全省的麻疹发病水平。 3～ 6月为麻疹高发季节 ,0～ 2岁和 6～ 8岁为麻疹高发年龄组。对麻疹病例的免疫史分析表明 ,2 5 %的麻疹病例未接种麻疹疫苗 (MV) ,2 4 %的病例免疫史不详。报告病例的年龄和免疫史状况说明 ,MV的初种和复种需加强 ,同时要在全省范围开展一定年龄组儿童的MV强化免疫 ,调整现行MV的免疫程序 ,健全麻疹监测系统。     

均一吸收体中SPECT重建多解性的探讨

通过对重建图像噪声特性的分析，间接证明ＳＰＥＣＴ的解具有多样性。分别用ＴｒｅｔｉａｋＭｅｔｚ、Ｇｕｌｂｅｒｇ、富谷武浩等推导的３种等价重建方法和Ｂｅｌｉｎｉ等推导的重建方法，经计算机模拟重建衰减均匀分布的图像，先预置相同的重建图像的空间分辨率，再比较它们的噪声特性。两种方法重建图像的噪声分布：前者近图像边缘时增大，而后者减小，从而间接证明在假定均匀衰减条件下，ＳＰＥＣＴ的重建有多解性。     

Voluntary head stabilization in space during oscillatory trunk movements in the frontal plane performed in weightlessness

 The ability voluntarily to stabilize the head in space during lateral rhythmic oscillations (0.59±0.09 Hz) of the trunk has been investigated during microgravity (μG) and normal gravity (nG) conditions (parabolic flights). Five healthy young subjects, who gave informed consent, were examined. The movements were performed with eyes open or eyes closed, during phases of either μG or nG. The main result was that head orientation with respect to vertical may be stabilized about the roll axis under μG with, as well as without vision, despite the reduction in vestibular afferent and muscle proprioceptive inputs. Moreover, the absence of head stabilization about the yaw axis confirms that the degrees of freedom of the neck can be independently controlled, as was previously reported. These results seem to indicate that voluntary head stabilization does not depend crucially upon static vestibular afferents. Head stabilization in space may in fact be organized on the basis of either dynamic vestibular afferents or a short-term memorized postural body schema. Received: 4 October 1995 / Accepted: 30 September 1996     

强酸和强碱中和过程的PH控制

讨论了强酸、强碱中和过程ＰＨ控制方案。以０．９ｍｏｌ／Ｌ的ＮａｏＨ中和０．９ｍｏｌ／Ｌ的ＨＮＯ３，流量增量为０．１－０．３ｋｇ／ｍｉｎ，用模糊控制将ＰＨ控制在各要求的值上，ΔｐＨ≤０．２，获得满意的结果。     

Hyperaemia in rat neocortex produced by acute exposure to methylenedioxymethamphetamine

Cerebral blood flow and glucose utilization were measured in rat neocortex, hippocampus and striatum following methylenedioxymethamphetamine injection (5 mg/kg, i.v.), using the tracers [¹⁴C]iodoantipyrine and [¹⁴C]2-deoxyglucose, respectively. In control rats, blood flow was coupled to glucose metabolism, but in methylenedioxymethamphetamine-treated rats, marked hyperperfusion was measured in frontal and parietal cortex with no change in glucose use. This suggests that methylenedioxymethamphetamine has the potential to disrupt cerebrovascular control.     

"托管制"条件下医疗服务质量监控的实践

无锡市卫生局在"托管制"条件下,转变政府职能,加强医疗服务质量监控,在依法管理的基础上,严把"导、评、赛、奖"四个控制环节.     

Optimal control of non‐linear chemical reactors via an initial‐value Hamiltonian problem

The problem of designing strategies for optimal feedback control of non‐linear processes, specially for regulation and set‐point changing, is attacked in this paper. A novel procedure based on the Hamiltonian equations associated to a bilinear approximation of the dynamics and a quadratic cost is presented. The usual boundary‐value situation for the coupled state–costate system is transformed into an initial‐value problem through the solution of a generalized algebraic Riccati equation. This allows to integrate the Hamiltonian equations on‐line, and to construct the feedback law by using the costate solution trajectory. Results are shown applied to a classical non‐linear chemical reactor model, and compared against suboptimal bilinear‐quadratic strategies based on power series expansions. Since state variables calculated from Hamiltonian equations may differ from the values of physical states, the proposed control strategy is suboptimal with respect to the original plant. Copyright © 2005 John Wiley & Sons, Ltd.     

Locus of control, life events and treatment outcome in alcohol dependent patients

We investigated the relationship of locus of control and life events to outcome of treatment at 6 months in 67 patients with alcohol dependence. Outcome was less favourable in patients with pre-treatment scores indicating external locus of control than in those with internal locus of control. Furthermore, patients with relapse in the follow-up period experienced more independent life events with moderate to severe objective negative impact than those with more favourable outcome. These results suggest that locus of control may be of clinical use in formulating treatment and prognosis, and that the occurrence of life events may influence outcome. The results are discussed in relation to strategies for treatment and prevention of relapse.