Could gonadal and adrenal androgen deficiencies contribute to the depressive symptoms in men with systolic heart failure?

Background: Testosterone (TT) and dehydroepiandrosterone sulphate (DHEAS) are neurosteroids and their deficiencies constitute the hormone risk factors promoting the development of depression in elderly otherwise healthy men. We investigated the link between hypogonadism and depression in accordance with age and concomitant diseases in men with systolic HF using the novel scale previously dedicated for elderly population.

Methods: We analysed the prevalence of depression and severity of depressive symptoms in population of 226 men with systolic HF (40–80 years) compared to 379 healthy peers. The severity of depression was assessed using the Polish long version of Geriatric Depression Scale (GDS).

Results: In men aged 40–59 years the severity of depressive symptoms was greater in NYHA classes III–IV compared to NYHA classes I–II and reference group. In men aged 60–80 years depressive symptoms were more severe in NYHA class III-IV compared to controls (all p?≤?0.001). In multivariate logistic regression model in men aged 40–59 years advanced NYHA class was associated with higher prevalence of mild depression (OR?=?2.14, 95%CI: 1.07–4.29) and chronic obstructive pulmonary disease (COPD) with higher prevalence of severe depression (OR?=?69.1, 95%CI: 2.11–2264.3). In men aged 60–80 years advanced NYHA class and TT deficiency were related to higher prevalence of mild depression (respectively: OR?=?2.9, 95%CI: 1.3–6.4; OR?=?3.6, 95%CI: 1.2–10.63).

Conclusion: TT deficiency, COPD and advanced NYHA class were associated with higher prevalence of depression in men with systolic HF.     

高效消毒杀菌剂（Ⅰ）——二氯异氰尿酸钠的合成

以液相法合成异氰尿酸中间体，选用了苯甲酸酯类（Ａ）及芳香硝基类（Ｂ）化合物为反应溶剂，产率分别为９４％（Ａ）和９３％（Ｂ）。此类溶剂文献未见报道。二氯异氰尿酸钠的合成，采用ＮａＯＨ＋Ｃｌ２的方法，产率达８８％。     

不同体系下亚甲蓝聚合状态的光谱研究

应用吸收光谱法研究了亚甲蓝在不同浓度时以及添加不同浓度十二烷基硫酸钠时的聚合状态的变化,探讨了亚甲蓝与十二烷基硫酸钠之间相互作用机理,同时考察了乙醇、NaCl、羟丙基-β-环糊精以及Triton X-100对亚甲蓝聚合状态的影响。结果表明亚甲蓝溶液浓度和溶剂对亚甲蓝的聚合状态都有影响。     

复分解法生产硫酸钡联产硫脲、硫氢化钠的研究

硫化钡－硫酸复分解法生产沉淀硫酸钡发生硫化氢联产流脲和硫氢化钠，克服了传统工艺的不足，可有效利用硫化氢生产高附加值的含硫系列产品，避免了排放污染。     

甜菜碱与羧甲基纤维素钠相互作用的研究

本文通过表面张力法和粘度法研究了十四烷基甜菜碱(C_(14)BE)与羧甲基纤维素钠(CMC-Na)的相互作用,并通过紫外吸收光谱法对其作用机理进行了探讨。发现在pH=2时,两者由于静电吸引作用而形成复合物,pH=7时无复合物生成,但对彼此的性质仍有影响。外加盐促进了两者间氢键的形成,使pH=7的情况下也产生了复合物。     

人造葡萄的研制

多糖胶体通过凝胶成型可以仿造很多生鲜果品．本文研究了海藻酸钠凝胶仿制葡萄的原理、方法．结果表明，以海藻酸钠、砂糖、氯化钙等为主要原料；经科学加工可以制成色、香、味、形均神似天然，且具有保健功效的人造匍萄．     

利用废镍铬合金电阻丝制备硫酸镍和铬矾

报道了一种利用废镍铬合金电阻丝回收制备硫酸镍和铬矾的方法。     

烷基糖苷与十二烷基苯磺酸钠复合驱油剂研究

将非离子表面活性剂烷基糖苷与阴离子表面活性剂十二烷基苯磺酸钠进行复配,考察了复合驱油剂对低渗油藏的驱油性能。当烷基糖苷与十二烷基苯磺酸钠的复配比为3：1、总浓度为0.20%时,复合驱油剂降低了油/水界面张力。复和驱油剂与模拟地层水、注入水配伍性好,不产生沉淀。     

芒硝的产品开发

阐述以芒硝为原料生产多种化工产品的化学反应原理与工艺流程，为芒硝的产品开发提供了技术方法。可供盐矿及乡镇企业参考。     

Multivariate spatial interpolation and exposure to air pollutants

We develop and apply an approach to the spatial interpolation of a vector-valued random response field. The Bayesian approach we adopt enables uncertainty about the underlying models to be représentés in expressing the accuracy of the resulting interpolants. The methodology is particularly relevant in environmetrics, where vector-valued responses are only observed at designated sites at successive time points. The theory allows space-time modelling at the second level of the hierarchical prior model so that uncertainty about the model parameters has been fully expressed at the first level. In this way, we avoid unduly optimistic estimates of inferential accuracy. Moreover, the prior model can be upgraded with any available new data, while past data can be used in a systematic way to fit model parameters. The theory is based on the multivariate normal and related joint distributions. Our hierarchical prior models lead to posterior distributions which are robust with respect to the choice of the prior (hyperparameters). We illustrate our theory with an example involving monitoring stations in southern Ontario, where monthly average levels of ozone, sulphate, and nitrate are available and between-station response triplets are interpolated. In this example we use a recently developed method for interpolating spatial correlation fields.