rss_2.0Life Sciences FeedSciendo RSS Feed for Life Sciences Sciences Feed syndrome in patients with anorexia nervosa - case reports<abstract> <title style='display:none'>Abstract</title> <p><bold>Introduction:</bold> Refeeding syndrome RS is a life-threatening acute hormonal and metabolic disorder that occurs in patients with moderate or severe malnutrition as a result of improperly administered nutritional therapy.</p> <p><bold>Material and method:</bold> The aim of this study is to describe the cases of two female patients suffering from anorexia nervosa, who developed a refeeding syndrome after starting nutritional therapy. Additionally, the available literature was reviewed in order to characterize the issue, including negative consequences and prevention of the refeeding syndrome.</p> <p><bold>Results:</bold> In both cases, the development of the refeeding syndrome was found in the patients, resulting from the excessive supply of energy and nutritional substrates in a short time, preceded by a previous, months long period of starvation and exhaustion of the organism (both patients had a decrease in the body mass index - BMI - to the value of about 14 kg / m<sup>2</sup>). In patient 1, the symptoms concerned mainly the cardiovascular system: a significant increase in the concentration of N-terminal B-type natriuretic propeptide (NT-proBNP) and tachycardia, as well as a decrease in the concentration of inorganic phosphates and hypokalemia. On the other hand, in the case of patient 2, symptoms such as confusion or deep disturbances of consciousness, which led to hospitalization in the intensive care unit, dominated the clinical picture.</p> <p><bold>Conclusions:</bold> Refeeding syndrome may develop during nutritional rehabilitation, especially in the case of a sudden, inadequately planned supply of nutrients. Particular care should be taken in patients with extremely low BMI when reintroducing nutrition.</p> <p>The presented case reports draw attention to the possibility of cardiological complications and mental disorders of the realimentation syndrome, and indicate the behavior of patients (eating excessive food) that may lead to the development of the refeeding syndrome.</p> </abstract>ARTICLE2022-01-17T00:00:00.000+00:00Comparative testing of two alternating current methods for determining wood moisture content in kiln conditions<abstract><title style='display:none'>Abstract</title><p>Research into the possibility of applying the electric impedance spectrometry (EIS) method and the dielectric capacitance method (DECM) simultaneously above fibre saturation point (FSP) and in harsh kiln conditions has been relatively scarce. In the framework of this research, tests were carried out on the operational reliability of the measuring capacitor (MEC) prototype used for calibrating the DECM in the harsh internal climate (50°C and 98% RH) of the kiln. Condensation of water vapor on MEC plates, leakage of MEC insulators and the emergence of static electric charges on MEC plates were studied. Quantitative ranges were found for MEC performance-disrupting effects on the parasitic capacities induced by each effect. The DECM was found to be less reliable than the EIS method for application in harsh kiln conditions. Secondly, under the same test conditions and for the same wood species (birch), the possibilities of the DECM method and the EIS method were comparatively modeled with the predetermined Rozema quality criterion of ±1.75% MC for predicting the moisture content (MC) of birch wood above FSP. It was found that, under the same test conditions, the DECM method proved more accurate than the EIS method for predicting birch wood MC above FSP. Based on the tests, it was concluded that DECM can be used in practice by applying a non-destructive method to reliably determine the average moisture content of a wood batch immediately prior to commencing the wood-drying process.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00The Forests of Naissaare Island in 1297–1698 in relation to the development of the City of Tallinn, Estonia<abstract><title style='display:none'>Abstract</title><p>The article explores the development of the North Estonian city of Tallinn and the history of the forests on Naissaar, the greatest of the four offshore islands, in the 13th–17th century. In 1219, the northern part of Estonia was conquered by King of Denmark Waldemar II, who built a new stone citadel on the site of the former Estonian stronghold on the hill of Toompea. Under the sovereign rule of the King of Denmark, North Estonia became the Duchy of Estonia. Subsequently, the citadel developed into the settlement of Toompea, the seat of the governor and state authority, and the surrounding areas into the settlement of Tallinn. In 1248, Tallinn gained Lübeck city rights. King of Denmark Erik VI Menved’s law of 1297 granted the city of Tallinn and Toompea, i.e., the state, joint use of the insular forests. The law came to be interpreted as the beginning of nature conservation in Estonia, as it was the first law regulating forest use and users. Naissaare forest also served as a landmark for sea vessels. As the state did not interfere with the city’s affairs, the latter saw itself as the sole owner of Naissaare Island. Over the next four centuries, Tallinn exploited the Naissaare forests for various purposes. The city managed the forests with relative economy, but not without conflicts, as the provincial government also contended for the use of Naissaare. In 1689, the state asserted its rule over the islands by reduction. The city of Tallinn was forced to terminate the use of Naissaare forests, with the right of forest use reserved to the state.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00Study of invasive plants in tropical dry deciduous forests – biological spectrum, phenology, and diversity<abstract><title style='display:none'>Abstract</title><p>Morni Hills of Panchkula district, Haryana harbor floristically important tropical dry deciduous forests and are quite enriched with the phytodiversity of medicinally important plant species. But these forests are under huge pressure due to anthropogenic activities facilitating the establishment and spread of invasive plant species. So, the present study was conducted in the forests of Morni Hills to understand the ecology of invasive alien plant species growing there. During the study, the area was colonized by many invasive alien plant species, such as <italic>Ageratum conyzoides</italic> L., <italic>A. haustonianum</italic> Mill., <italic>Chromolaena odorata</italic> (L.) R.M. King &amp; H. Rob., <italic>Lantana camara</italic> L., etc. In terms of longevity, the annual growth form dominated over the perennial. The family Asteraceae was dominant with 11 species, followed by Malvaceae and others. The biological spectrum showed that the dominant life form was therophytes followed by phanerophytes and others, indicating vegetation disturbance while during flowering phenology assessment, maximum plant species were found to be flowering throughout the year. Using the data of flowering (presence or absence), a hierarchical cluster analysis was carried out and a heatmap was prepared. The diversity of invasive plants was calculated along an altitudinal gradient and was found to be changing along with rising altitude in a hump-shaped pattern. The invasive alien plant species cause severe threats to the forest ecosystems. Hence, by policy planning and adopting appropriate management strategies in the forests of Morni Hills, the growth of invasive alien plant species should be controlled to retain the natural ecology of the area.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00Diversity of dominated communities on the Kamchatka Peninsula<abstract><title style='display:none'>Abstract</title><p>On the Kamchatka Peninsula, Far East Russia, <italic>Pinus pumila</italic>-dominated communities occur from sea level up to 1200 m and geographically from the southern extremity of the peninsula up to the Kamchatka Isthmus and the Koryak Upland. Variation in species composition and abundance in <italic>P. pumila</italic> stands are determined mainly by the habitat’s moisture, soil fertility (expressed as the litter-humus coefficient) and altitude. The fertility level of the habitats has a significant positive impact especially on the abundance of the herb layer species, and to a lesser extent on the cover of the shrub layer. The growth of dwarf-shrubs and lichens is inhibited in habitats with better fertility. In relation to the fertility gradient, the vertical structure of the communities is also changing explicitly; the thickness of snow cover and exposition has a modest effect on the vegetation of <italic>P. pumila</italic> stands on Kamchatka. The analysed set of 272 relevés were clustered into six community type groups: (i) pure dwarf-pine communities, (ii) shrub-rich communities, (iii) dwarf-shrub-rich communities, (iv) herb-grass-rich communities, (v) moss-rich communities and (vi) lichen-rich communities; further 18 community types were established. They have a fairly good correspondence with most of the syntaxa described by previous scholars, but this is not always the case.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00Jalakasurma levikust ja ohtlikkusest Eestis<abstract><title style='display:none'>Abstract</title><p>This review provides an overview of and describes the current situation of Dutch elm disease (DED), which is one of the most devastating diseases for elms worldwide and in Estonia. It is known that in Estonia DED’s agent <italic>Ophiostoma ulmi</italic> has been damaging elms since the 1930s. Today a new species <italic>Ophiostoma novo-ulmi</italic> is considered to be an agent of DED. Since 2013 the current epidemic has been recorded in most of the counties of Estonia. The both known DED agents, <italic>Ophiostoma novo-ulmi</italic> subsp. <italic>novo-ulmi</italic> and <italic>O. novo-ulmi</italic> subsp. <italic>americana</italic> were molecularly detected on <italic>Ulmus</italic> spp. Additionally, one hybrid pathogen of the subspecies (<italic>americana</italic> x <italic>novo-ulmi</italic>) was identified in northern Estonia. Also, the health status of elms and the potential vector agents of the pathogen are discussed and recommendations for disease management are provided.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00Changes during twelve years in three mature hemiboreal stands growing in a radiation model intercomparison test site, Järvselja, Estonia<abstract><title style='display:none'>Abstract</title><p>In 2007, three mature hemi-boreal stands were selected from Järvselja forest district, South-East Estonia to establish one-hectare-large test plots for the international inter-comparison experiment of radiation models (RAMI). All trees with a stem diameter at breast height greater than 4 cm were mapped and measured in the field. In summer 2019, the forests were inventoried again. Here we present a summary of changes that occurred in the forest structure – mainly growth and mortality. In the birch stand basal area <italic>G</italic> has increased from 23.3 m<sup>2</sup> ha<sup>-1</sup> to 28.2 m<sup>2</sup> ha<sup>-1</sup> in the upper layer and the number of trees <italic>N</italic> has decreased from 654 to 565 ha<sup>-1</sup>. In the upper layer of spruce stand <italic>G</italic> has increased from 30.9 m<sup>2</sup> ha<sup>-1</sup> to 35.4 m<sup>2</sup> ha<sup>-1</sup> and <italic>N</italic> has decreased from 774 to 724 ha<sup>-1</sup> and <italic>N</italic> substantially decreased in the lower layers from 912 to 577 ha<sup>-1</sup>. In the pine stand <italic>G</italic> has increased from 28.3 m<sup>2</sup> ha<sup>-1</sup> to 29.1 m<sup>2</sup> ha<sup>-1</sup> and N decreased from 1116 to 971 ha<sup>-1</sup>. The three test stands can be used now for validating remote sensing data-based estimates of forest inventory variables at single tree level.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00 L.: An Overview<abstract><title style='display:none'>Abstract</title><p>The Turkey oak is a frequent tree species in the Mediterranean climate zones of southern Europe and Asia Minor. It has been used in the human diet, for medicinal purposes, firewood and charcoal production. Like all oaks, Turkey oak is suffering from dieback and decline owing to the combination of several detrimental factors, such as insects, diseases and unfavorable environment, leading to their deterioration and sometimes resulting in their early death.</p></abstract>ARTICLE2022-01-11T00:00:00.000+00:00Application of Logical Regression Function Model in Credit Business of Commercial Banks<abstract> <title style='display:none'>Abstract</title> <p>This paper takes the credit risk management of commercial banks in China as the mainline, and puts forward a quantitative model that is suitable for the credit risk management of commercial banks in China at present – Logistic regression model, and takes a commercial bank as an example, using the regression model to conduct empirical research on the credit risk of enterprises. The estimated Logistic model was tested with confirmation samples. The results show that when the cut-off point is set to 0.5, the overall correct rate of the model for the credit risk measurement of natural persons and for enterprises reaches 84.9% and 88%, respectively. When the cut-off point is set at 0.7, the overall accuracy is 89.2%. In general, the results of credit risk measurement of bank customers by the Logistic model are quite satisfactory. The Logistic Regression model is easy to understand and efficient, so it is worth popularising and putting into practice in commercial banks in China.</p> </abstract>ARTICLE2021-12-27T00:00:00.000+00:00Epizootic Ulcerative Syndrome (EUS) Fish Disease Chronology, Status and Major Outbreaks in the World<abstract> <title style='display:none'>Abstract</title> <p>Epizootic Ulcerative Syndrome (EUS) has been causing large-scale mortality among the freshwater fishes of the globe since the 1070s.</p> <p>The symptoms include large haemorrhagic cutaneous ulcers, epidermal degeneration and necrosis followed by sloughing of scales. There have been many studies on EUS throughout the world. In India, since the initiation of EUS, in 1988, our study tried to reveal the aetiology of the disease through extensive and intensive studies on different aspects, like limnological, physical, chemical, bacteriological, fungal, viral including electron microscopic studies. Details of EUS investigation has been discussed in the present paper.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00Occurrence, Abundance and Distribution of Bleak, Common Spirlin, and Sunbleak in the Environmental Gradients of Small Rivers (Tatarstan)<abstract> <title style='display:none'>Abstract</title> <p>The probability of occurrence, distribution, and abundance of bleak, common spirlin, and sunbleak in 316 small rivers of the Republic of Tatarstan were studied. The studied region has a high geographical and environmental heterogeneity. The impact of environmental factors on species occurrence was analyzed with generalized linear models. Among the selected fish, sunbleak had the highest probability of occurrence, and bleak had the highest abundance. Elevation was the only environmental variable significantly affecting the probability of occurrence of all three species. With an increase in elevation, the probability of occurrence of bleak, common spirlin, and sunbleak significantly decreased. Optimum values and niche breadth differed significantly between fish species for some of the environmental variables.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00Cladocera from the Sediment of High Arctic Lake in Svalbard (Norway)<abstract> <title style='display:none'>Abstract</title> <p>The High Arctic Region’s freshwater ecosystems serve as hot spots to study the impact of extreme warming conditions on the biota. The cladoceran remains have been recovered from the surface sediments of a non-marine water body near Ny-Alesund, Svalbard, Norway. The cladoceran (crustaceans) belongs to the <italic>Chydorus sphaericus</italic> group Frey, 1980 and <italic>Daphnia pulex</italic> Leydig, 1860. The ecology of the species suggests that they lived in a well-developed ecosystem with Water Quality Class 3. This study has implications for understanding the response of the present-day biota experiencing the changing climate conditions and using these remains for assessing palaeoenvironmental conditions.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00A Study on Marine Fishery Resources of Andhra Pradesh: Ecological Aspects and Morphometrics of Common Marine Fishes of Visakhapatnam ‒ Protein Content and Bioaccumulation of Heavy Metals in Pomfret Fish Species<abstract> <title style='display:none'>Abstract</title> <p>212 marine fishery resources were recorded in the waters of Andhra Pradesh State. Morphometric data was provided for 20 edible fishery resources landing at the fishing harbour of Visakhapatnam. The harbour area is polluted due to influx of various industrial effluents and domestic sewage. In <italic>Pampus argenteus, P. chinensis</italic> and <italic>Parastromateus niger</italic>, the total protein content is 16.24-19.58%. Further, arsenic concentration in muscle and gill portions individually or combined in all three of the species is highly negligible. Cadmium, mercury, and lead levels in the muscle and gills of these species are within or slightly above the recommended limits set by EU (2006) and FAO (2003), FAO/WHO (2011), MAFF, and FSSAI (2011) indicating that the consumption of these fishes is not harmful.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00Reproductive Biology of the Tigris Scraper, (Heckel, 1843) Population Living in Solhan Creek of Murat River (Bingöl, Turkey)<abstract> <title style='display:none'>Abstract</title> <p>We studied the reproductive traits in 23 of 190 individuals of <italic>Capoeta umbla</italic> caught monthly in the Solhan Creek of the Murat River between April 2017 and March 2018. The sex ratio (F:M) was found to be 1:1.11. The macroscopic examination of the gonads and gonado-somatic index indicated that the reproductive period lasted from May to August with peak activity in May. The fecundity ranged from 2,000 to 9,000 oocytes, and it correlated with the total length and body weight. This work represents the first attempt to investigate the reproductive traits of the <italic>Capoeta umbla</italic> population in the Solhan Creek. The results provide information on the reproductive biology and contribute to the conservation of the fish population and its sustainable management.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00Histological Study of the Immune System in Zebrafish, (Hamilton, 1822)<abstract> <title style='display:none'>Abstract</title> <p>The aim of the present study was to investigate the cellular characteristics of the immune tissues of Zebrafish, <italic>Danio rerio</italic> (Hamilton, 1822). The fish were fixed in Bouin՚s solution for 24 hours then dehydrated, cleared, paraffinized, embedded and finally sectioned, stained and observed through optical microscopy. Results showed that immune system tissues of Zebrafish include the apical part of the kidney, thymus, and spleen. The apical part of the kidney was composed of hematopoietic tissue containing blood and immune cells. The spleen was a single organ located at the abdominal cavity containing melanomacrophages. The thymus was observed as a paired organ at the posterior part of the branchial cavity. Results showed that the immune system of the Zebrafish was dispersed in several organs of the body and that this species could be used as a laboratory model organism in immune system studies.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00Urban Aquatic Ecosystems as a Factor of the Spread of Antibiotic Resistant Microorganisms and Resistance Genes<abstract> <title style='display:none'>Abstract</title> <p>In this work, studies have been conducted to detect antibiotic resistance microorganisms and resistance genes in the natural waters of the Uzh River, which flows in the Carpathian region (Ukraine) and flows into the Laborec River in the territory of Slovakia. Among the most common microorganisms of the Uzh River, there has been a high level of resistance to tetracyclines, β-lactams, and antibiotics of the last line of defence (carbapenems, fourth-generation fluoroquinolones). The results of molecular genetic analysis indicate the presence of resistance genes <italic>bla</italic> tet-M, <italic>bla</italic> CTX-M, <italic>bla</italic> TEM, and <italic>bla</italic> KPC in microorganisms of the Enterobacteriaceae family.</p> </abstract>ARTICLE2021-11-03T00:00:00.000+00:00Bioindication of Water Quality by Diatom Algae in High Mountain Lakes of the Natural Park of Artabel Lakes, (Gümüşhane, Turkey)<abstract><title style='display:none'>Abstract</title><p>The first results of bioindicative analysis of water quality in the high-mountainous lakes of the Artabel Lakes Natural Park are presented using diatom species. A total of 95 diatom taxa collected in August 2013 and 2016 were identified and used as bioindicators for ten environmental variables. Bioindication, statistical methods and comparative floristic results show that the waters in all the lakes studied were fresh, low-saline, with circum-neutral pH and organically uncontaminated. The results of bioindication can be used as etalons for future monitoring of lakes in order to protect species found in the natural park, and can also be included in the national system of water quality standards in Turkey.</p></abstract>ARTICLE2021-03-13T00:00:00.000+00:00Influence of Alien Species L., 1753 on Representative Species of Genus in Ukraine<abstract><title style='display:none'>Abstract</title><p>This work purpose was to find the impact of <italic>Pistia stratiotes</italic> L., 1753 <italic>-</italic> a new species on the territory of Ukraine, on the vitality of other free-floating hydrophytes so-called pleuston- <italic>Salvinia natans </italic>(L.) All., 1785, <italic>S. laevigatum </italic>(Humb. and Bonpl. ex Willd.) Heine, 1968, to determine the degree of stability and competitiveness of these species for resources in natural ecosystems relatively to the undesirable species. To find out the influence of <italic>P. stratiotes </italic>on other free-floating on the water surface plant species which compete for elements of nutrition among each other, we have investigated changes in the content of photosynthetic pigments in <italic>S. laevigatum </italic>and <italic>S. natans</italic>, which were exhibited with <italic>P. stratiotes </italic>for 14 days. Besides changes in water indices, oxygen content, mineralization and pH, were measured.</p></abstract>ARTICLE2021-03-13T00:00:00.000+00:00Range Map and Distribution of Heckel 1847 in the Tigris and Euphrates River Basins<abstract><title style='display:none'>Abstract</title><p><italic>Luciobarbus barbulus</italic> Heckel, 1847 was described from water bodies around Shiraz and the Qara Aqaj River, one of the main rivers in Shiraz City, Iran. In the present study localities, a geographical range map of <italic>Luciobarbus barbulus</italic> and new data on the present status of this species are presented. In our latest sampling we assessed for the first time the presence of this species in the Lesser Zab River where no specimen had been collected in the past on this part of the river. The detailed distribution of <italic>Luciobarbus barbulus</italic>, based on the captured specimens, and literature records of this species are mentioned.</p></abstract>ARTICLE2021-03-13T00:00:00.000+00:00Species and Thallus Structure Diversity of Chlorophyta in Shore Platform of Dwarka (Gujarat Coast, India)<abstract><title style='display:none'>Abstract</title><p>Present study shows the species and thallus structure diversity of Chlorophyta in shore platform of Dwarka, Gujarat Coast. Chlorophyta were surveyed based on systematic random sampling for two years: April 2013 to April 2015. Total 27 species of Chlorophyta were identified through intensive fieldwork survey based on line transect and quadrate based methods. This study identifies four orders, nine families, 13 genera and 27 species among the green macroalgae population inhabiting the rock shore platform of Dwarka. Total 27 species of Chlorophyta have been found with major nine thallus types and 19 sub types of thallus structure. Ramiform and filamentous types of thallus structure are most common in this study.</p></abstract>ARTICLE2021-03-13T00:00:00.000+00:00en-us-1