Cadmium in the dose of 1 mg/animal/day was administered to guinea-pigs in the form of CdCl2 dissolved in drinking water during short-term (5 weeks) and subchronic (12 weeks) experiments. Both the control and cadmium-treated groups were divided into two subgroups, according to low (2 mg/animal/day) and high (100 mg/animal/day) vitamin C intake. Subchronic cadmium treatment caused copper deficiency indicated by a dramatic decrease of copper concentration in the liver and serum and by its moderate decrease in the testes and brain. Cadmium significantly increased zinc concentrations in the kidneys during the whole experiment and decreased the level of zinc in the serum after subchronic cadmium treatment. In the control groups, the levels of zinc and copper in the serum were lowered after 5 weeks of high vitamin C doses. High doses of vitamin C in cadmium-treated guinea-pigs decreased the levels of copper in the testes, brain and serum. These observations suggest that cadmium intake in relatively high doses might potentiate the development of copper deficiency, and high doses of vitamin C aggravate, to a certain extent, copper depletion in some important organs and serum of guinea-pigs.
At the heart of Krishna Sobti’s novel Zindagīnāmā (A book of life, 1979) is a village of the Gujrat district (western Panjab, now Pakistan), in the Chaj Doab. The setting is contained within three bands: the outermost band is the village, where most people are Muslim but which is dominated by Śāhjī’s Hindu Khatri family, and above all by Śāhjī himself, a landowner and moneylender. Inside this band is the havelī (large walled house) owned by Śāhjī, and inside the havelī band is the large room ( baiṭ hak) where the men gather. Inside the havelī band there are also the rooms belonging to the women’s realm. Additionally there are several external settings. The village is connected to the world at large through news of events, recounted or witnessed by characters who come into contact with Śāhjī. The period covered is 1900-1916. The narrative consists chiefly of dialogue between the various characters. The language is a mixed vocabulary of Hindi, Urdu and Panjabi. The novel is highly complex, rich in incident and in its cast of characters: Hindu, Sikh and Muslim. The first distinction to be drawn is between the women’s and the men’s world. The women’s world is one of emotions. The men’s world is political in the broad sense of the word and includes Śāhjī business dealings with Muslim Jat tenants. The gatherings in the baiṭ hak of Śāhjī are well attended, and many of the guests are Muslims. Interests sometimes converge and more often diverge, but Śāhjī always handles the conversation skillfully, diplomatically changing the subject when delicate issues such as the economy, politics and, indirectly, religion are raised. Śāhjī’s work as a mediator should not be seen purely as a way of protecting his personal interests. In reality, by mediating in different areas – economic, political and religious – he keeps the village united, providing cultural cohesion. Nonetheless, in Zindagīnāmā, the economic factor emerges repeatedly as the cause of the future Partition.
Holanďan Christiaan Huygens významně přispěl k rozvoji mechaniky a optiky v návaznosti na problémy, které řešila astronomie. Je vynálezcem kyvadlových hodin, nejpřesnějšího časoměrného přístroje doby umožňujícího poprvé stanovení zeměpisné délky plujících lodí., The article deals with the life and work of Dutch astronomer, physicist and mathematician Christiaan Huygens. Describing his extensive scientific work, we start with his activities in the field of observational astronomy (e.g. the discovery of the rings and moon of Saturn and the summary of the existing knowledge of the planets in his publication Cosmotheoros). His discovery and quantitative description of centrifugal force contributed significantly to solving problems describes in Newton´s Principia. Huygens is also well-known as a technician and technical designer. He constructed the first pendulum clocks. Last but not least, we describe his work on the impact of solid bodies, when he reflected on the work of R. Descartes and J. Marek Marci., František Jáchim., and Obsahuje seznam literatury
Plýtvání se vyskytuje v každém podniku, ve všech oblastech, proto je nutné, aby jej všichni pracovníci neustále aktivně vyhledávali, identifikovali a bylo následně odstraněno s cílem zvýšit produktivitu práce a snížit náklady. Výjimkou není ani zdravotnické zařízení, kde lze redukovat náklady pomocí vhodně nastavených interních standardů. Tento článek vás seznámí s první fází projektu Mapování životního cyklu interních standardů v nemocnicích, který byl vytvořen v rámci diplomové práce. Odkryje nedostatky v procesu tvorby interních standardů a v závěru poukazuje na jejich možná řešení., Wasting occurs in every company, in all areas, it is therefore necessary that all staff is constantly it actively looking for, identify, and was subsequently removed to increase productivity and reduce costs. The exceptions are not health care institutions, where you can reduce costs by using the appropriate set of internal standards. This article to introduce you the first phase of the project Mapping the life cycle of internal standards in hospitals, which was created in the framework of the master theses. Mapping reveals the shortcomings in the process of formation of internal standards and at the end points to their possible solutions., Radka Kejmarová, and Literatura
Sofia Kovalevskaya was not only a great Russian mathematician, but also a writer and advocate of women's rights in the 19th century. After concluding her sexondary schooling, Sofia was determined to continue her education at the university level. She travelled to Heidelberg to study mathematics, but discovered there that as a woman she could not graduate. In 1870 she moved to Berlin to study with Karl Meierstrass, in 1874 she was granted a Ph.D. from the Göttingen University. In 1883 she received an invitation from Gösta Mittag-Leffler to lecture at the University of Stockholm. Sophia's most famous work is on the theory of partial differential equations, and on the rotation of a solid body about a fixed point. Sophia died very young, at the age of 41, from pneumonia., Ivo Kraus., and Obsahuje bibliografii
Životní prognóza pacientů s diabetes mellitus 1. typu (DM1T) se dramaticky změnila po objevu inzulinu v roce 1922, ale stále byla o 25 let kratší ve srovnání s nediabetickou populací. Někteří lidé s DM1T však žili stejně dlouho jako nediabetická populace a neměli pozdní komplikace diabetu. Začali být oceňováni medailemi za dlouhý život s diabetem. Stali se však i předmětem výzkumu zabývajícího se otázkou, proč žijí tak dlouho, čím se odlišují od těch pacientů s DM1T, kteří žili krátce. Práce se zabývá odlišnostmi medailistů a diskutuje různé hypotézy, které by mohly tyto odlišnosti vysvětlit. Zdá se, že velice důležitá je kvalitní kontrola diabetu v prvních 20 letech od stanovení diagnózy, protože existuje tzv. glykemická paměť, která může v dalších letech životní prognózu významně ovlivnit. Život lidí se lineárně prodlužuje od počátku 19. století, prodlužuje se však i život osob s DM1T. Je to způsobeno jednak kvalitnější kontrolou glykemie, jednak kvalitnější prevencí a léčbou komplikací. Ukazuje se, že klesá výskyt terminálních stadií diabetické nefropatie, zlepšuje se primární i sekundární prevence kardiovaskulárních komplikací i kardiologická a kardiochirurgická léčba. Jako nejvýznamnější prognostické faktory zvýšené mortality se jeví manifestní proteinurie, diabetická neuropatie a hypertenze. Pokud nejsou přítomny tyto ukazatele, neliší se životní prognóza pacientů s DM1T významně od životní prognózy nediabetické populace. Klíčová slova: diabetická nefropatie – diabetes mellitus 1. typu – glykemie – glykemická paměť – ICHS – mortalita – pozdní komplikace diabetu – prognóza, The life expectancy of Type 1 diabetes mellitus (T1DM) dramatically improved after the discovery of insulin in 1922, but was still 25 years shorter than that of non-diabetic population. Some people with T1DM, however, lived to the same age as a non-diabetic population and had no late complications of diabetes. They began to be awarded medals in appreciation of their long life with diabetes. They also became the subject of a research examining why they lived so long and what was the difference between them and those patients with T1DM, whose lives were much shorter. The paper deals with the differences observed in the ´medallists´ and discusses various hypotheses that might account for them. It seems that reliable control of diabetes within the first 20 years following the diagnosis is very important, in relation to the existence of “glycemic memory“ which may significantly affect life expectancy in the following years. Human lifespan in general has been linearly extended since the early 19th century and the same holds for lifespans of people with T1DM. This is due to the higher quality control of glycemia on the one hand, and a better prevention and treatment of complications. It is observed that the incidence of terminal stages of diabetic nephropathy has been dropping, the primary as well as secondary prevention of cardiovascular complications, cardiological treatment and heart surgery have been improving. Manifest proteinuria, diabetic neuropathy and hypertension appear to be major prognostic factors of increased mortality. If these indicators are not present, the life expectancy of patients with T1DM does not significantly differ from that of the non-diabetic population. Key words: diabetic nephropathy – glycemia – glycemic memory – ICHS – late complications of diabetes – mortality – prognosis – type1 diabetes mellitus, and Zdeněk Rušavý, Silvie Lacigová
Cíl: Analyzovat efektivitu postupů vedoucích ke zkrácení Door-to-Needle Time (DNT) u pacientů léčených intravenózní trombolýzou (IVT). Důvodem je skutečnost, že DNT je jediný parametr, který dokáže zlepšit efektivitu IVT a který je současně modifikovatelný. Soubor a metodika: Data pochází z Iktového centra (IC) Oblastní nemocnice Kladno z období 07/2011 do 06/2013. Opatření směřující ke zkrácení DNT byla zaváděna od 05/2012 a zahrnovala: propracování spolupráce se složkami záchranného systému, zlepšení koordinace péče v rámci nemocnice, u vybraných pacientů podání IVT bezprostředně po provedení výpočetní tomografie (CT). DNT cílové skupiny pacientů léčených po zavedení nových standardů byla srovnávána s DNT historické kontrolní skupiny pacientů léčených trombolýzou od 7/2011 do 4/2012. Regresní metody byly použity pro adjustaci na vstupní charakteristiky pacientů. Výsledky: V cílové skupině došlo ke klinicky zásadnímu zkrácení DNT z 65 min na 45 min (p = 0,001), k mírnému zkrácení mediánu Onset to Treatment Time (OTT) ze 144 min na 130 min (p = 0,66) a také k mírnému poklesu výskytu symptomatických intrakraniálních krvácení (SICH) oproti skupině kontrolní – z 4,40 % na 3,70 % (OR 0,90; 95% CI: 0,11–7,03). U pacientů léčených bez znalosti kompletních výsledků laboratoře (n = 17) jsme nezaznamenali žádné SICH. Pacienti léčení v pracovní době měli 6,8krát vyšší šanci na zahájení léčby do 60 min oproti pacientům léčeným v době ústavní pohotovostní služby (ÚPS) (OR 6,78; 95% CI: 2,34–19,64). Závěry: Zavedení opatření ke zkrácení DNT bylo vysoce účinné a bezpečné. Podání IVT bez kompletních výsledků laboratoře u vybraných pacientů bylo bezpečné a významně se podílí na zkrácení mediánu DNT celého souboru., Aim: To analyze the effectiveness of interventions intended to reduce door-to-needle time (DNT) for patients treated with intravenous thrombolysis (IVT), considering that DNT is the only parameter we can influence to improve the efficacy of IVT. Material and methods: The data were collected from the Stroke Centre of the Kladno Regional Hospital over the period 07/2011 to 06/2013. Interventions intended to reduce the DNT have been implemented in 05/2012 and include: well-developed cooperation with the emergency medical service, improved coordination of care within the hospital, administration of IVT immediately after CT in selected patients. DNTs in the target group (patients treated after implementation of the interventions) were compared to the DNTs in a historical control group (patients treated with thrombolysis from 7/2011 to 4/2012). Multiple logistic regression analysis was used for adjusting the baseline characteristics of the patients. Results: The target group showed clinically crucial shortening of DNT from 65 min to 45 min (p = 0.001), a slight reduction of the median onset-to-treatment time (OTT) from 144 min to 130 min (p = 0.66) and a slight decrease in symptomatic intracranial hemorrhage (SICH) compared to the control group – from 4.40% to 3.70% (OR 0.90, 95% CI: 0.11–7.03). We did not detect any SICH in the group of patients who were treated even though the complete laboratory results were not known (n = 17). Patients treated during working hours had a 6.8–times higher chance of treatment initiation within 60 min compared to patients treated during “on call” hours (OR 6.78, 95% CI: 2.34–19.64). Conclusions: The interventions implemented to reduce DNT were highly effective and safe. IVT administration without complete laboratory results in selected patients was safe and significantly contributed to reducing the median DNT of the entire group. Key words: stroke – reducing DTN – increasing efficacy of IVT The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers., and M. Šrámek, T. Ružičková, P. Kešnerová, P. Kadlecová, R. Mikulík