Hyperdipsia produced by severing ventral septal fiber systems.

The septum of male hooded rats (N = 59) was completely isolated from the rest of the brain (ISS) or was partially isolated by severing dorsal (DP), ventral (VP), anterior (AP), or posterior (PP) fiber tracts using a knife-cut technique. Daily water intakes and intakes following hypertonic NaCl and polyethylene glycol (PG) injections were measured. The septum totally degenerated for the ISS group and these rats had normal or hypodipsic daily intakes, likewise for intakes following NaCl and PG. Rats of the VP group sustained little septal damage, yet these cuts yielded the highest percentage (55 percent) of hyperdipsic daily drinkers of any group. The daily hyperdipsic rats drank normally in response to NaCl and PG, demonstrating a dissociation between daily drinking and drinking in response to specific thirst stimuli. The results indicate the importance of ventral fiber systems in the production of Septal Hyperdipsia, and support the notion that the septum has multiple effects upon water regulation.     

Interaction between the septal area and the subfornical organ in the control of water intake induced by thirst-eliciting procedures

Rats bearing lesions in the septal area followed by lesions in the subfornical organ were submitted to various thirst-eliciting procedures. The rats with hyperdipsia induced by lesions of the septal area drank more water than either during the control period or after lesion of the subfornical organ under the same thirst-eliciting or angiotensin-liberating stimuli (polyethyleneglycol, isoproterenol, water deprivation and ligation of the inferior vena cava). The overdrinking elicited by lesions in the septal area was blocked after lesion of the subfornical organ. Neither hypovolemia, nor hypotension or water deprivation could elicit increased water intake in animals whose subfornical organ had been destroyed. Animals with lesions in the subfornical organ showed decreased water intake after cellular dehydration. The results obtained suggest that the subfornical organ acts as a more important structure than the septal area in the regulation of water intake elicited by angiotensin, with two opposite effects: a direct one facilitating water intake, and an indirect one inhibiting the septal area. The septal area has an inhibitory effect on the subfornical organ and on water intake.     

Extraction of organic acids by ion-pair extraction with tri-n-octylamine - VIII. Identification of synthetic dyes in pharmaceutical preparations

Synthetic dyes were extracted from syrups, oral suspensions, tablets, gelatin capsules, suppositories and granules by ion-pair formation with tri-n-octylamine (TnOA) and back-extracted with perchlorate ions. Identification was performed by TLC on cellulose layers and by reversed phase ion-pair HPLC.     

2014—2021年石家庄市生活饮用水水质变化趋势分析

目的 对石家庄市2014—2021年生活饮用水常规指标进行监测,分析水质及主要监测指标变化趋势。方法 收集整理2014—2021年石家庄市生活饮用水监测资料,分析生活饮用水合格率、主要监测指标合格率、主要监测指标变化趋势。 结果 2014—2021年石家庄市共监测水样10529份,总合格率为77.15%;地表水合格率（99.08 %）高于地下水（75.96 %）、城市水合格率（85.17 %）高于农村水（75.05%）、枯水期合格率（79.79%）高于丰水期（74.51%）,完全处理水合格率（99.10%）高于仅消毒（86.29%）和未处理（70.70%）（P均<0.05）。2014—2021年石家庄市生活饮用水最低合格率为69.49%,最高合格率为82.28%,总合格率呈上升趋势（P<0.05）。主要指标耐热大肠菌群 、菌落总数、总硬度、硝酸盐、硫酸盐的合格率均呈上升趋势（P<0.05）,菌落总数、硝酸盐、氟化物、总硬度、溶解性总固体、硫酸盐、氯化物的含量均呈下降趋势（P<0.05）。结论 石家庄市2014—2021年生活饮用水水质整体呈现优化趋势,微生物指标仍是影响水质的主要因素。     

Towards an integrated theoretical framework for understanding water insecurity and gender-based violence in Low-and middle-income countries (LMICs)

Disparities in access to basic needs and resources such as water is largely borne out of power imbalance across scale. In examining these power dynamics in the context of health inequalities, scholars have deployed Feminist political ecology analytical framework to situate gender and other forms of vulnerability as emerging from unequal power relations, and political ecology of health to emphasise the health implications of inherent relational power in the distribution of resources. Although appealing, the two theoretical frameworks over time have proven to be limiting in the study of intersectional vulnerabilities such as gender-based violence and water insecurity which reflect multiple dimensions of unequal power structures. This study expands the theoretical space for the study of inequalities in health geography by demonstrating the utility of incorporating feminist political ecology with political ecology of health to form an integrated theoretical framework – Feminist Political Ecology of Health (FPEH). This proposed theoretical framework gives guidance for engaging with a suite of questions and methods related to multifaceted problems such as water insecurity and gender based-violence. The paper highlights these theoretical issues and then discusses how FPEH can enrich research on water security and gender-based violence in Low-and middle-income countries (LMICs).     

血液透析设备故障案例分析

血液透析(HD)是急慢性肾功能衰竭患者肾脏替代治疗方式之一,通过HD的治疗可以延长患者的生命,而血液透析机和水处理机是HD治疗过程中最为重要的设备,当设备出现故障时,快速分析和解决故障是HD患者顺利完成治疗的重要保障。     

2018年某市学校管道直饮水水质抽检结果分析与探讨

目的了解某市学校管道直饮水的卫生状况,为上级部门制定政策提供依据。方法2018年3—11月,随机抽取某市内42所使用管道直饮水系统的学校开展监测工作。结果共检测学校管道直饮水42份,合格32份,合格率76.19%。主要不合格指标为:菌落总数。结论学校管道直饮水卫生存在一定的风险隐患,呼吁国家尽快出台管道直饮水卫生规范和技术标准,加强管道直饮水监督和管理,确保直饮水水质安全。     

2015—2019年恩平市农村饮用水水质卫生监测结果分析

目的了解恩平市农村生活饮用水水质卫生状况,为改善农村水质安全提供科学依据。方法2015年3月—2019年3月对恩平市的乡镇水源水、出厂水进行检测。结果2015年3月—2019年3月度共检测水样3424份,水质总的合格率为56.45%,出厂水的平均合格率为34.7%,末梢水的平均合格率为61.30%,水源水平均合格率达84.6%。各类监测指标中,不合格指标有游离余氯、菌落总数、总大肠菌群、浑浊度、pH值、铝、锌、铁、锰。结论恩平市农村生活饮用水水质合格率偏低,需要改进设备;加强水源保护、消毒净化;并积极引导农民减肥增效生产;进行卫生宣传及管理,保障饮用水质量。     

夹竹桃水提物灭螺活性研究

目的 研究夹竹桃水提物的灭螺活性。方法 测试水提物作用后钉螺的死亡率,用直线回归法进行量效和时效分析。结果 夹竹桃水提物灭螺的量效和时效关系分别为Y＝95．4378D－21．2478和Y＝21．32T－3．96,pH从5．5到8．5的范围内其活性随pH上升略有下降,室内贮存1年及100℃加热2h其活性基本不变。结论 夹竹桃水提物具有很强的灭螺活性。     

1932例拔牙后出血临床分析

目的 探讨拔牙后出血的原因及急诊处理的方法。方法 回顾性分析1932例拔牙后出血急诊患者的出血原因及处理方法。结果 本组病例病因主要有软组织撕裂350例（18．1％）,高血压340例（17．6％）,牙槽窝内残留性肉芽组织及残留牙根270例（14％）,其它972例。经口腔科急诊处理治愈1810例（93．7％）,122例转入内科及血液科,其中120例痊愈,2例死亡。结论 拔牙后出血为口腔科常见的并发症,对其应以预防为主,急诊处理时应兼顾局部与全身,必要时会同内科医生进一步检查,明确病因,进行治疗。