人工饲养条件下根田鼠肥满度的研究

实验室条件下，利用根田鼠1～70日龄体重和体长数据，计算其肥满度指数，目的在于分析其生长发育的基本规律。结果表明，根田鼠1～70日龄肥满度存在性别差异且随日龄增加而增大；雌雄个体的发育不同步；常见曲线回归模型对根田鼠1～70日龄的肥满度不能准确拟合，根据其生长发育状况，将其划分为3个阶段（其中幼体和成体阶段各含2个阶段）。

栽培燕麦和野燕麦C-带核型比较

对1个六倍体栽培燕麦(A.sativa)健壮燕麦和3个六倍体野燕麦(A.fatua)通北燕麦、五台燕麦和日本燕麦进行了C-带核型比较,结果表明,栽培燕麦与野燕麦C-带带型基本相似,但同时在多个染色体上不同材料间又有C-带多态性存在,多态性C-带显现在1C,4C,5C,8,10,13,15,19,20号染色体上.此研究结果可为这些种质资源在燕麦遗传育种中的研究和利用提供细胞学依据.

Analysis of primary aromatic amines using precolumn derivatization by HPLC fluorescence detection and online MS identification

2-(2-Phenyl-1H-phenanthro-[9,10-d]imidazole-1-yl)-acetic acid (PPIA) and 2-(9-acridone)-acetic acid (AAA), two novel precolumn fluorescent derivatization reagents, have been developed and compared for analysis of primary aromatic amines by high performance liquid chromatographic fluorescence detection coupled with online mass spectrometric identification. PPIA and AAA react rapidly and smoothly with the aromatic amines on the basis of a condensation reaction using 1-ethyl-3-(3dimethylaminopropyl)-carbodiimide (EDC) as dehydrating catalyst to form stable derivatives with emission wavelengths at 380 and 440 nm, respectively. Taking six primary aromatic amines (aniline, 2-methylaniline, 2-methoxyaniline, 4-methylaniline, 4-chloroaniline, and 4-bromoaniline) as testing compounds, derivatization conditions such as coupling reagent, basic catalyst, reaction temperature and time, reaction solvent, and fluorescent labeling reagent concentration have also been investigated. With the better PPIA method, chromatographic separation of derivatized aromatic amines exhibited a good baseline resolution on an RP column. At the same time, by online mass spectrometric identification with atmospheric pressure chemical ionization (APCI) source in positive ion mode, the PPIA-labeled derivatives were characterized by easy-to-interpret mass spectra due to the prominent protonated molecular ion m/z [M + H](+) and specific fragment ions (MS/MS) m/z 335 and 295. The linear range is 24.41 fmol-200.0 pmol with correlation coefficients in the range of 0.9996-0.9999, and detection limits of PPIA-labeled aromatic amines are 0.12-0.21 nmol/L (S/N = 3). Method repeatability, precision, and recovery were evaluated and the results were excellent for the efficient HPLC analysis. The most important argument, however, was the high sensitivity and ease-of-handling of the PPIA method. Preliminary experiments with wastewater samples collected from the waterspout of a paper mill and its nearby soil where pollution with aromatic amines may be expected show that the method is highly validated with little interference in the chromatogram.

一种4自由度混合型并联平台机器人

提出一种用水平导轨上4个滑块作为原动件的混合型4自由度并联平台机器人，该机器人的动平台能够实现两个方向的移动以及绕两个方向轴线的转动。研究了该机器人的运动学建模方法，给出了运动学正、逆解，用Grassman几何法分析了该机器人在其工作空间内不会出现奇异形位。基于该4自由度并联平台机器人可以非常方便地开发具有大工作空间的5轴联动数控机床。

鲁西晚中生代基性脉岩的成因和源区性质：岩石学和地球化学

本文从岩石学和地球化学方面对鲁西地区淄博盆地几个岩区的基性脉岩的成因和源区性质进行了探讨。脉岩的K-Ar年龄(72．2～116．3 Ma)表明其为晚中生代(白垩纪)岩浆作用的产物。主量元素显示该脉岩总体属钙碱性系列。微量元素特征表明脉岩为交代富集地幔部分熔融作用的产物，成岩过程可能同时经历了橄榄石、单斜辉石、Ti-Fe氧化物以及少量斜长石的分离结晶作用。Pb同位素组成：^208Pb／^204Pb=36．308～38．329；^207Pb／^204Pb=15．170～15．632；^206Pb／^204Pb=16．658～18．470，可以和下地壳组成相比，暗示成岩过程中存在大量下地壳物质的参与。岩浆在构造上受控于燕山造山带坍塌和沂沭断裂带(郯庐断裂山东段)的活动(左行平移和伸展)，但在上升侵位过程中没有遭受地壳物质的混染，且具有大陆边缘弧玄武岩的特性。这暗示岩浆早期鲁西地区存在古大洋板块(苏-鲁洋)的俯冲作用(即古俯冲作用)。

污水处理厂工艺运行分析及模拟优化技术研究——以沈阳北部污水处理厂为例

2002年12月，国家环保总局颁布了《城镇污水处理厂污染物排放标准》(GB18918-2002)，对我国城镇污水处理厂的出水水质，尤其是对出水的氮、磷指标提出了更加严格的要求。这不仅对污水处理厂的工艺设计提出了挑战，而且对其运行工艺提出了更高要求，因此污水处理厂面临着进行工艺优化及达标改造以满足新的污水排放标准的问题。 本文以沈阳北部污水处理厂为研究对象，结合国际水质协会（IWA）开发推荐的活性污泥模型(ASM2D)，按照设备评估和分析、数据收集和分析、活性污泥模型的设计和校正、方案评估及改造建议4个阶段对该污水处理厂进行了工艺优化分析及模拟优化技术研究，并运用收集到的原始数据对活性污泥模型（ASM2D）进行了校正。随后，在模型校正成功基础上，对北部污水处理厂三种可能的污水设计处理工艺（A2/O工艺、5段式 Bardenpho工艺、组合工艺）进行了预测及筛选，选定了组合工艺作为北部污水处理厂的最佳脱氮除磷改造方案，确保了沈阳北部污水处理厂污水排放稳定达标。同时，为沈阳市其它城市污水处理厂的污水排放达标改造提供了借鉴。 该研究对提高城市污水处理厂设计和运行管理水平，减少投资和运行成本，提高处理效果，逐渐缩小我国在模型研究和应用方面与国外的差距，在实际应用方面及理论研究方面都具有重要意义。

Code warriors and code-a-phobes: a study in attitude and pair programming

Thomas, L., Ratcliffe, M., and Robertson, A. 2003. Code warriors and code-a-phobes: a study in attitude and pair programming. SIGCSE Bull. 35, 1 (Jan. 2003), 363-367.

Carta de color.

26 hojas : fotografías a color.

The missionary nature of the church; a survey of the Biblical theology of mission.

http://www.archive.org/details/missionarynature013246mbp

A cross-site, comparative effectiveness study of an integrated HIV and substance use treatment program.

Co-occurrence of HIV and substance abuse is associated with poor outcomes for HIV-related health and substance use. Integration of substance use and medical care holds promise for HIV patients, yet few integrated treatment models have been reported. Most of the reported models lack data on treatment outcomes in diverse settings. This study examined the substance use outcomes of an integrated treatment model for patients with both HIV and substance use at three different clinics. Sites differed by type and degree of integration, with one integrated academic medical center, one co-located academic medical center, and one co-located community health center. Participants (n=286) received integrated substance use and HIV treatment for 12 months and were interviewed at 6-month intervals. We used linear generalized estimating equation regression analysis to examine changes in Addiction Severity Index (ASI) alcohol and drug severity scores. To test whether our treatment was differentially effective across sites, we compared a full model including site by time point interaction terms to a reduced model including only site fixed effects. Alcohol severity scores decreased significantly at 6 and 12 months. Drug severity scores decreased significantly at 12 months. Once baseline severity variation was incorporated into the model, there was no evidence of variation in alcohol or drug score changes by site. Substance use outcomes did not differ by age, gender, income, or race. This integrated treatment model offers an option for treating diverse patients with HIV and substance use in a variety of clinic settings. Studies with control groups are needed to confirm these findings.

Knowledge and perceptions among overweight and obese employees about lifestyle-related health benefit changes.

We investigated perceptions among overweight and obese state employees about changes to health insurance that were designed to reduce the scope of health benefits for employees who are obese or who smoke. Before implementation of health benefit plan changes, 658 state employees who were overweight (ie, those with a body mass index [BMI] of 25-29.9) or obese (ie, those with a BMI of > or = 30) enrolled in a weight-loss intervention study were asked about their attitudes and beliefs concerning the new benefit plan changes. Thirty-one percent of employees with a measured BMI of 40 or greater self-reported a BMI of less than 40, suggesting they were unaware that their current BMI would place them in a higher-risk benefit plan. More than half of all respondents reported that the new benefit changes would motivate them to make behavioral changes, but fewer than half felt confident in their ability to make changes. Respondents with a BMI of 40 or greater were more likely than respondents in lower BMI categories to oppose the new changes focused on obesity (P < .001). Current smokers were more likely than former smokers and nonsmokers to oppose the new benefit changes focused on tobacco use (P < .01). Participants represented a sample of employees enrolled in a weight-loss study, limiting generalizability to the larger population of state employees. Benefit plan changes that require employees who are obese and smoke to pay more for health care may motivate some, but not all, individuals to change their behaviors. Since confidence to lose weight was lowest among individuals in the highest BMI categories, more-intense intervention options may be needed to achieve desired health behavior changes.

A theory of hypoellipticity and unique ergodicity for semilinear stochastic PDEs

We present a theory of hypoellipticity and unique ergodicity for semilinear parabolic stochastic PDEs with "polynomial" nonlinearities and additive noise, considered as abstract evolution equations in some Hilbert space. It is shown that if Hörmander's bracket condition holds at every point of this Hilbert space, then a lower bound on the Malliavin covariance operatorμt can be obtained. Informally, this bound can be read as "Fix any finite-dimensional projection on a subspace of sufficiently regular functions. Then the eigenfunctions of μt with small eigenvalues have only a very small component in the image of Π." We also show how to use a priori bounds on the solutions to the equation to obtain good control on the dependency of the bounds on the Malliavin matrix on the initial condition. These bounds are sufficient in many cases to obtain the asymptotic strong Feller property introduced in [HM06]. One of the main novel technical tools is an almost sure bound from below on the size of "Wiener polynomials," where the coefficients are possibly non-adapted stochastic processes satisfying a Lips chitz condition. By exploiting the polynomial structure of the equations, this result can be used to replace Norris' lemma, which is unavailable in the present context. We conclude by showing that the two-dimensional stochastic Navier-Stokes equations and a large class of reaction-diffusion equations fit the framework of our theory.

Selbstorganisierte Projektgruppen von Studierenden. Neue Wege bei der Kompetenzentwicklung an Hochschulen

In diesem Beitrag weisen wir auf die Bedeutung hin, die selbstorganisierte Projektgruppen von Studierenden für das (Aus-)Bildungsziel der überfachlichen Kompetenzentwicklung haben können. Nach einem kurzen Überblick über den aktuellen Stand der Förderung überfachlicher Kompetenzen an Hochschulen stellen wir am Beispiel des Augsburger „Begleitstudiums Problemlösekompetenz“ einen Ansatz zur Kompetenzentwicklung vor, der auf der Partizipation in studentischen Praxisgemeinschaften beruht. Wir erläutern vor diesem Hintergrund, wie sich selbstorganisierte Projektgruppen von Studierenden von anderen Gruppenformen im Rahmen von Lehrveranstaltungen unterscheiden, und machen anhand eines Beispiels deutlich, welchen Mehrwert diese Praxisgemeinschaften gegenüber anderen Ansätzen zur überfachlichen Kompetenzförderung an Hochschulen haben. (DIPF/ Orig.)

Entwicklungswege Jugendlicher zwischen Transition und Moratorium

Bisher stehen sich in der deutschen Jugendforschung mit dem Transitions- und Moratoriumsgedanken zwei Konzepte zur Beschreibung der Jugendphase gegenüber, deren ergänzender Charakter bisher kaum Beachtung gefunden hat. Um eine Verknüpfung leisten zu können, sollen beide Auffassungen von Jugend kurz skizziert und in die Beschreibung einer Typologie jugendlicher Entwicklungswege überführt werden. Im zweiten Teil werden auf der Basis von Sekundäranalysen empirische Evidenzen aufgezeigt, die eine Vertiefung der theoretischen Herangehensweise aussichtsreich erscheinen lassen. (DIPF/Orig.)

"Sanftes Monster Brüssel" – zur voraussichtlichen Repräsentation der Sozialwissenschaften in der zukünftigen europäischen Forschungsförderpolitik

Der Artikel befasst sich mit der europäischen Forschungsförderpolitik im Hinblick auf die Sozialwissenschaften. Derzeit laufen die Vorbereitungen für das nächste EU-Forschungsrahmenprogramm, das ab 2014 bis 2020 gültig sein wird. Es wird den Namen Horizon 2020 erhalten. Die Analyse skizziert die verschiedenen Aktivitäten, die nationale und europäische Erziehungswissenschaftsverbände entfaltet haben, um eine Repräsentation der Sozialwissenschaften im nächsten Rahmenprogramm zu gewährleisten. (DIPF/Orig.)