Problemi na khigienata最新文献

[Lipid peroxidation in chronic lead exposure]. [慢性铅暴露中的脂质过氧化]。

Problemi na khigienata Pub Date : 1997-01-01

V Tenchova, V Petkova, S Pavlova, Iu Simeonov

引用次数: 0

[The physical development of children living in a settlement with a high nitrate content in the drinking water]. [生活在饮用水中硝酸盐含量高的定居点的儿童的身体发育]。

Problemi na khigienata Pub Date : 1997-01-01

P Gatseva, A Aleksandrova, N Ivanova, K Sapundzhiev

引用次数: 0

[The observation and assessment of air pollution in the region of the city of Silistra]. [锡利斯特拉市地区空气污染的观察和评估]。

Problemi na khigienata Pub Date : 1997-01-01

D Lolova, E Simeonova, P Zhekova

引用次数: 0

[An evaluation of the toxic exposure to inhalation anesthetics and disinfectants on liver function. II]. 吸入麻醉药和消毒剂毒性暴露对肝功能的影响。二)。

Problemi na khigienata Pub Date : 1997-01-01

A Mikhaĭlova, T Popov

引用次数: 0

[The role of nitrates in the genesis of goiter morbidity]. [硝酸盐在甲状腺肿发病中的作用]。

Problemi na khigienata Pub Date : 1997-01-01

P Gatseva, S Vladeva, K Pavlov

引用次数: 0

[The visual perception of the elements of technical drawings among masking distractions in advanced and nonadvanced students in the building and architectural professions]. [建筑专业高级和普通学生对技术图纸中掩蔽干扰因素的视觉感知]。

Problemi na khigienata Pub Date : 1997-01-01

Iu Balichev

{"title":"[The visual perception of the elements of technical drawings among masking distractions in advanced and nonadvanced students in the building and architectural professions].","authors":"Iu Balichev","doi":"","DOIUrl":"","url":null,"abstract":"To investigation were submitted the particularities of the process of visual perception of technical drawings and schemes in advanced and backward pupils, who were mastering the specialties of \"building and architecture\", \"hydroconstruction\", \"transport construction\", \"geodesy\". The time was registered, which was necessary to advanced and backward pupils for unveiling the different elements in the drawing, scheme, and such attributes of the drawing as: orientation, length, curves of the lined, the boundary between them; time for identification of the specific designations, symbols, group of symbols, elements of the sketch from the simple to the complex ones. The results of the investigations revealed that in the advanced pupils the perception (unveiling) of the different elements of the technical drawing proceeded very rapidly, almost automatically. In the backward pupils this process elapsed reliably more slowly. It was demonstrated that the growing up pupils, who were distinguished with more rapid perception of the different elements of the drawing (advanced ones) more rapidly and more exactly dealt with solution of the technical tasks as compared with these, who more slowly unveiled the looked for elements (backwardness). Some other individual particularities were also established with respect to the visual perception of the elements of the technical drawing and its properties in advanced and backward pupils who were mastering the investigated professions.","PeriodicalId":20520,"journal":{"name":"Problemi na khigienata","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21073918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The neurobehavioral effects of solvents]. [溶剂的神经行为效应]。

Problemi na khigienata Pub Date : 1997-01-01

B Tsenova

引用次数: 0

[The memorization of new material and the probable energy processes in the short-term and long-term memories of adolescents]. [青少年短期和长期记忆中新材料的记忆和可能的能量过程]。

Problemi na khigienata Pub Date : 1997-01-01

Iu Balichev

{"title":"[The memorization of new material and the probable energy processes in the short-term and long-term memories of adolescents].","authors":"Iu Balichev","doi":"","DOIUrl":"","url":null,"abstract":"In age-related, occupational and individual aspects the dynamics of the transition of the visual technical information was investigated from short-term to long-term memory in growing up individuals, mastering the profession of operator-power engineer. The variants of probable distribution of the nervous energy between focus and background of the operative field of the brain were considered in the examined pupils. It was established that at the first presentation of complex technical information the occupationally adapted pupils in significant higher volume were able to assimilate the presented information than the occupationally unadapted ones. It was demonstrated that the process of transition of the visual information from conditions of short-term to long-term memory processed by stages in all examined individuals according to the assimilation or loss of part of the presented for memorizing information in every cycle of its repetition. It was assumed that each stage of memorizing which is connected with assimilation or loss of the information had its connected with assimilation or loss of the information had its strictly individual energetic characteristics. The complex variants of the energetic processes were considered. The results of the carried out investigations also revealed that assimilation of visual information depended to a greater extent of the individual abilities of the pupils rather than of their age.","PeriodicalId":20520,"journal":{"name":"Problemi na khigienata","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21073916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The effect of the zinc-containing preparation Oxyrich in the treatment of chronic saturnism (preliminary results)]. [含锌制剂富氧治疗慢性血湿的效果(初步结果)]。

Problemi na khigienata Pub Date : 1997-01-01

S Pavlova, V Petkova, Ch Nachev, D Georgieva, M Kerimova, I Khadzhieva

引用次数: 0

[Deviations in the hematological indices of women exposed to aromatic hydrocarbons]. [接触芳香烃的妇女血液学指标的偏差]。

Problemi na khigienata Pub Date : 1997-01-01

V Khristeva-Mircheva, E Traĭkova

{"title":"[Deviations in the hematological indices of women exposed to aromatic hydrocarbons].","authors":"V Khristeva-Mircheva, E Traĭkova","doi":"","DOIUrl":"","url":null,"abstract":"The indices of peripheral blood were investigated in 73 female laboratorians of the \"Complex Laboratory for Analysis of Aromatic Carbohydrates\", who were distributed into four groups according to the intensity of exposition. In the air of the laboratory medium the following substances were determined: benzene, toluen, xylols, ethylenic oxide, acrylnitril. The established concentrations were below or around the values of the mean maximum admissible concentrations (MMACV). Eleven indices of the three blood populations were followed up including white blood cell differential count and assessment of the activity of alkaline phosphatase in the polymorphonuclears. The same indices were investigated in 22 females, forming a control group. It was established that 26% of the examined female laboratorians were with anaemic syndrome, in 22.8% leucocytosis was present, while the alkaline phosphatase in the polymorphonuclears was with strongly inhibited activity. Although that on the bases of the formed 4 groups the dependencies \"dose-response\" and \"dose-effect\" were not established, the described deviations in the indices of the peripheral blood and expressed in a high percentage of the female laboratorians of the \"Complex Laboratory for Analysis of Aromatic Carbohydrates\" (CLAAC) direct to exerted effect by the occupational chemical harms upon the blood system of the examined females.","PeriodicalId":20520,"journal":{"name":"Problemi na khigienata","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21073914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0