Parental reactions to children's negative emotions: longitudinal relations to quality of children's social functioning

Relations between self-reported parental reactions to children's negative emotions (PNRs) and children's socially appropriate/problem behavior and negative emotionality were examined longitudinally. Evidence was consistent with the conclusion that relations between children's externalizing (but not internalizing) emotion and parental punitive reactions to children's negative emotions are bidirectional. Reports of PNRs generally were correlated with low quality of social functioning. In structural models, mother-reported problem behavior at ages 10-12 was at least marginally predicted from mother-reported problem behavior, children's regulation, and parental punitive or distress reactions. Moreover, parental distress and punitive reactions at ages 6-8 predicted reports of children's regulation at ages 8-10, and regulation predicted parental punitive reactions at ages 10-12. Father reports of problem behavior at ages 10-12 were predicted by earlier problem behavior and parental distress or punitive reactions; some of the relations between regulation and parental reactions were similar to those in the models for mother-reported problem behavior. Parental perceptions of their reactions were substantially correlated over 6 years. Some nonsupportive reactions declined in the early to mid-school years, but all increased into late childhood/early adolescence.     

The impact of post-literacy: A Tanzanian case study

Literacy has long been associated with commercial and political power, so that many countries have embarked on mass literacy with an assumption that socio-economic and political transformation will result. In the case of Tanzania, this is embodied in the policy of socialism and self-reliance. Tests have shown a drop in the illiteracy rate from 67 per cent in 1970 to 10 per cent in 1986, but for more than a decade economic difficulties have hindered the advance of post-literacy. A 1983 impact study shows an increase in income and political participation, and improvements in health and nutrition, but a general impact study does not reveal information as precise and useful as a specific study. The favourable impression of the 1983 study is contrasted with practical problems thrown up by investigations of the rural press, rural libraries, radio and film education, agricultural shortages, and economic constraints. These range from distribution and maintenance difficulties to political dependence, international prices and lack of marketing knowledge. There are thus many factors controlling development besides reinforcement of literacy.

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Zusammenfassung Alphabetisierung ist seit langem mit wirtschaftlicher und politischer Macht verbunden, so daß viele Länder die Massenalphabetisierung angefangen haben, in der Annahme, daß sozio-ökonomische und politische Veränderungen daraus resultieren würden. Im Falle Tansanias ist dies in der Politik des Sozialismus und self-reliance mit eingebettet. Tests haben einen Rückgang des Analphabetismus von 67 Prozent (1970) auf 10 Prozent (1986) ermittelt, aber seit mehr als einem Jahrzehnt behindern wirtschaftliche Schwierigkeiten den Ausbau der Nachalphabetisierung. Eine 1983 erstellte Impaktstudie zeigt eine Steigerung des Einkommens und der politischen Partizipation, sowie Verbesserungen in der Volksgesundheit und in der Ernährung, aber eine allgemeine Untersuchung gibt keine so genauen und nützlichen Informationen wie eine spezifische Studie. Der günstige Eindruck der 1983 erstellten Studie steht im Kontrast zu den praktischen Problemen, die durch die Untersuchungen der ländlichen Presse, der ländlichen Büchereien, der Bildung durch Radio und Film, der landwirtschaftlichen Defizite und der wirtschaftlichen Einschränkungen aufgeworfen wurden. Die Bandbreite reicht von Verteilungs- und Instandhaltungsproblemen bis zur politischen Abhängigkeit, von internationalen Preisen bis zum Mangel an Marketingwissen. Es gibt also sehr viele Faktoren, die neben der Stärkung der Alphabetisierung die Entwicklung bestimmen.

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Résumé On a longtemps associé l'alphabétisation au pouvoir commercial et politique, si bien que beaucoup de pays ont lancé des campagnes d'alphabétisation de masse, en supposant qu'il en résulterait une transformation socio-économique et politique. Dans le cas de la Tanzanie, cette attitude se reflète dans la politique de socialisme et d'indépendance. Des tests ont montré une baisse du taux d'analphabétisme de 67 pour cent en 1970 à 10 pourcent en 1986, mais, pendant plus de dix ans, des difficultés économiques ont entravé le déroulement de la postalphabétisation. Une étude d'impact menée en 1983 révèle une augmentation des revenus et de la participation politique, ainsi que des améliorations en matière de santé et de nutrition, mais une étude générale de l'impact n'apporte pas des informations aussi précises et utiles qu'une étude spécifique. L'impression favorable qui se dégage de l'étude de 1983 contraste avec les problèmes pratiques qui ont été identifiés par les recherches de la presse et des bibliothèques rurales, de la radio et des films éducatifs, des récoltes agricoles insuffisantes et des contraintes économiques. Ceux-ci vont des difficultés de distribution et de maintenance à la dépendance politique, aux prix internationaux et au manque de connaissances en marketing. Ainsi, de nombreux facteurs influencent le développement à côté du renforcement de l'alphabétisation.

     

B/S模式程序中的分布式计算应用一例

B／S模式的应用程序主要是集中式计算和处理，本简要的以实例无纸化考试系统设计，说明了在B／S模式中采用分布式计算处理的一种思路。     

The visual theology of Victorian popularizers of science. From reverent eye to chemical retina

This essay examines the use of visual images during the latter half of the nineteenth century in the work of three important popularizers of science. J. G. Wood, Richard Proctor, and Agnes Clerke skillfully used illustrations and photographs to establish their credibility as trustworthy guides to scientific, moral, and religious truths. All three worked within the natural theology tradition, despite the powerful critique of William Paley's argument from design set forth in Charles Darwin's Origin of Species (1859). Wood, Proctor, and Clerke recognized that in order to reach a popular audience with their message of divine wonder in nature, they would have to take advantage of the developing mass visual culture embodied in the new pictorial magazines, spectacles, and entertaining toys based on scientific gadgets emblematic of the reorganization of vision. But in drawing on different facets of the emerging visual culture and in looking to the images produced by the new visual technologies to find the hand of God in nature, these popularizers subtly transformed the natural theology tradition.     

Induction of diabetes by Streptozotocin in rats

The objective of this study is to induce experimental diabetes mellitus by Streptozotocin in normal adult Wistar rats via comparison of changes in body weight, consumption of food and water, volume of urine and levels of glucose, insulin and C-peptide in serum, between normal and diabetic rats. Intra-venous injection of 60mg/kg dose of Streptozotocin in adult wistar rats, makes pancreas swell and at last causes degeneration in Langerhans islet beta cells and induces experimental diabetes mellitus in the 2–4 days. Induction of experimental diabetes mellitus is indeed the first step in the plan of purification of pancreatic Langerhans islet cells of normal rats for transplanting under the testis subcutaneous of experimentally induced diabetic rats. Streptozotocin induces one type of diabetes which is similar to diabetes mellitus with non-ketosis hyperglycemia in some animal species. For induction of experimental diabetes in male adult rats weighted 250–300 grams (75–90 days), 60mg/kg of Streptozotocin was injected intravenously. Three days after degeneration of beta cells, diabetes was induced in all animals. The diabetic and normal animals were kept in the metabolic cages separately and their body weight, consumption of food and water, urine volume, the levels of serum glucose, insulin and C-peptide quantities in all animals were measured and then these quantities were compared. For a microscopic study of degeneration of Langerhans islet beta cells of diabetic rats, sampling from pancreas tissue of diabetic and normal rats, staining and comparison between them, were done. Induction of diabetes with Streptozotocin decreases Nicotinamide-adenine dinucleotide (NAD) in pancreas islet beta cells and causes histopathological effects in beta cells which probably intermediates induction of diabetes. In this study, we used Streptozotocin for our experiments in induction of experimental diabetes mellitus. After Induction of diabetes, consumption of food and water, volume of urine and glucose increased in the diabetic animals in comparison with normal animals, but the weight of body and the volume of insulin and C-peptide decreased in the diabetic animals. Sampling and staining of pancreas tissue of diabetic and normal rats showed that the Langerhans islet beta cells of diabetic rats have been clearly degenerated. In three days, Streptozotocin makes pancreas swell and at last causes degeneration in Langerhans islet beta cells and induces experimental diabetes. It also changes normal metabolism in diabetic rats in comparison with normal rats. Consumption of water and food, volume of urine, serum glucose increases in diabetic animals in comparison with normal rats but the levels of serum insulin, C-peptide and body weight decreases.     

Urinary iodine levels in three ecological zones of Bangladesh

Urinary iodine levels in children (5–11 years) and in adult males and females (15–44 years) of three ecological zones (hilly, flood-prone and plains) of Bangladesh were analyzed to determine the status of biochemical iodine deficiency in the country. Data indicated that a large majority of the population all over Bangladesh have biochemical iodine deficiency urinary iodine excretion (UIE) less than the accepted cut-off level of 10 μg/dl. Adults were deficient to comparable degrees, 31.3% severely iodine deficient. The flood-prone zone was less affected: 71.7% children had iodine deficiency and 25% were severely deficient. Adults of this zone were less affected than the children. Iodine deficiency was least severe in the plain zone: 59.8% children were biochemically iodine deficient and of them 23.4% had UIE less than 2.0 μg/dl. In the case of the adults of this zone, 60.8% were biochemically iodine deficient and 20.6% had severe iodine deficiency. The results indicate that Bangladesh as a whole is an iodine deficient region, with the hilly zone being the most severely affected. Children were slightly more affected than the adults, and females were more affected than the males.     

Prostate specific antigen in patients of benign prostate hypertrophy and carcinoma prostate

Prostate Specific Antigen (PSA) has emerged as the most applicable and important tumor marker for carcinoma prostate. In the present study PSA was determined in serum of healthy subjects, patients of benign prostate hypertrophy (BPH) and Carcinoma Prostate (Ca−P) to evaluate its diagnostic efficiency in day to day management of prostate cancer patients and in differentiating patients of early prostate cancer from those with BPH. Receiver operating characteristic curve (ROC) revealed 2 ng/ml and 10 ng/ml cut off serum PSA level for BPH and untreated carcinoma prostate patients (Ca−P). An extremely significant increase (P<0.0001) was observed in mean PSA concentration in BPH patients and adenocarcinoma prostate patients when compared to healthy males. Clinical relevance of PSA was highlighted by a case study of cancer patient prior to any therapy till death.