bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ensuring the reliability of metal smoke and veintilation pipes and their carrying towers
Authors: Yaroviy Serhii , Savytskyi Mykola , Slobodianiuk Serhii 
Published: July 2021

The problem of ensuring the reliability of the work of metal smoke and ventilation pipes and their bearing towers has recently gained special significance in connection with the large number of accidents at industrial enterprises.
Methods of estimation of residual resource of bearing elements of high-rise buildings with various damage detected during diagnostics are developed. The formulas for determining the residual life of metal chimneys are given, the actual reserves of the residual resource are determined after long periods of operation for specific structures.
In this work, variants of reinforcement of the elements of chimneys and towers with the most dangerous injuries (category A) – gaps, with cracks in the main metal and welds, with loss of the overall stability of the trunk of the pipe, have been developed and substantiated. On the basis of the analysis of the summation of internal and external stresses, we obtain formulas for calculating the elastic-deformation state of metal chimneys in the zone of through cracks and holes when performing construction reinforcement works by means of welds for overlays.
The variants of amplification of smoke pipes after the destruction of stops of towers, which perceive wind loads, and as consequences of the loss of overall stability of the pipe are given.
The research results make it possible to assess the reliability of metal smoke and ventilation pipes and their bearing towers after long operating periods, as well as used in the development of regulatory documents when assessing the technical condition and residual life of high-rise buildings.
Sustainability of the unit of protective obstacles under the extra load
Authors: Shapovalov Oleksandr , Kovtun Anatolii 
Published: July 2021

The article is devoted to the aspects of engineering provision of forces for the state border protection, namely the use of a blocking barrier obstacle to block certain areas of the territory in order to prevent a mass transfer of the state border violators at the border checkpoints or during the cessation of massive disturbances in the border areas. It also deals with the determination of the stability of the blocking barrier obstacle in the process of preparing it for its intended purpose in case of preventing the passage or breakthrough of the crowd on the prohibited areas of the territory.
Proceeding from the above presented in the article, the state border guard forces were requested to use a new construction of a barrier, namely: a blocking barrier obstacle to which Ukraine's patents for invention were obtained.
The peculiarity of the blocking barrier obstacle is that it consists of hollow connecting elements made of light polymer material. To increase the stability of the blocking barrier in case of external hollow loads, the connecting elements are filled with liquid. Sustainability refers to the ability of the structure to withstand the external loads, capable to shift or overturn them, thus ensuring the increase in the efficiency of the task of preventing passage or breakthrough of violators into the prohibited areas of the territory at the checkpoints. This feature of the blocking barrier obstacle allows construct various design and layout variants, each of which has certain advantages and disadvantages.
The article section contains the study of the processes of the external loads influence on the hollow connecting elements of the blocking barrier obstacle on various volumes and ways of filling it with liquid. Mathematical models of the blocking barrier obstacle stability with liquid have been constructed in case of applying external loads. The analysis of theoretical studies results of the external loads influence on the hollow connecting elements of the blocking barrier obstacle has been carried out.
Improvement of the calculation methodology for covering constructions of the covered field fortifications to ensure the survivability of troops in a modern armed conflict
Authors: Voloshchenko Oleksandr , Kushnirenko Mykola , Chernykh Ihor 
Published: July 2021

The task of improvement of the calculation methodology for covering constructions of the covered field fortifications against shell-hole, penetration, ricochet and high-explosive action is solved to ensure the survivability of troops in a modern armed conflict.
An analysis of the 2014-2018 anti-terrorist operation and the ongoing Joint Forces operation proves that artillery, mortar and aircraft high-destructive munitions are currently the main means of firing the enemy. Under such conditions, the survival of our troops directly depends on their effective shelter in covered field fortifications. An important element of the arrangement of such fortifications is the calculation of the structures of their covering against penetration, shell-holing, ricocheting and high-explosive action, which are performed to determine the structure of the covering, its material and thickness.
The novelty of the improved technique, unlike the existing ones, is that the calculations of the covering structures take into account the shape of the warhead of artillery, mortar and aircraft ammunition, the angle of encounter and the final speed of these munitions at the moment of their impact on the covered fortification and the pliability of the covering material.
Here are given the examples of calculation for the closed field fortifications structures against penetration of the warhead into the covering material, cases of punching the covering material enclosed with brittle material, ricochet of the warhead from the covering and destruction of the covering as a result of high explosive action.
The obtained results will be used to calculate the protective structures of long-term fortifications for command and control centres and field hospitals.
LAPFES
Authors: Dantas Jurema Barros , Lima Filho Francisco Ilo 
Published: July 2021

Como resposta à tendência generalista da graduação em Psicologia, em 2015, foi fundado o Laboratório de Estudos em Psicoterapia, Fenomenologia e Sociedade (LAPFES), com intuito de aprofundar a formação dos alunos em estudos socialmente contextualizados, seguindo uma perspectiva de base fenomenológica. Assim, a proposta deste artigo é apresentar, de uma maneira geral, as ações do laboratório em todos os seus aspectos institucionais. Foram realizadas consultas aos documentos de cadastros, arquivos de ações e, principalmente, ao Regimento Interno do LAPFES e ao seu Memorial. O texto foi dividido de forma a abordar separadamente os eixos de pesquisa, ensino e extensão trabalhados no laboratório. Ao todo o LAPFES promoveu 12 ações de extensão, 7 pesquisas, 28 grupos de estudos, 10 cursos de extensão, e fez mais de 7.000 atendimentos à comunidade em geral em diferentes contextos de saúde com o plantão psicológico. Conclui-se que o LAPFES, ao longo dos seus anos de existência, se destacou nas diversas ações promovidas, com impacto e relevância social.
Dinámica de incendios forestales en la Reserva para Parque Nacional San Rafael, Paraguay, periodo 2007-2017
Authors: Lorenz Zimmermann Laura Noemi , Eisenkölbl Closs Alicia Raquel , Amarilla Rodríguez Stella Mary 
Published: July 2021

Cada año la Reserva para Parque Nacional San Rafael (RPNSR) se ve afectada por incendios forestales que ocasionan daños a extensas superficies tanto de bosques como pastizales naturales y otros componentes de la biodiversidad. Esto puede resultar en un inconveniente si no se toman las medidas correspondientes en la gestión de estos fenómenos. Por ello, el objetivo principal fue analizar la dinámica de los incendios forestales en la RPNSR, mediante un análisis multitemporal en el periodo 2007-2017, con el registro detallado de los focos de calor captados por el sensor MODIS y análisis con sistemas de información geográfica. Comparación y análisis con los datos de precipitaciones mensuales. Los mismos dieron como resultado que indistintamente del régimen pluviométrico dado a lo largo del periodo de análisis, se registraron ocurrencia de incendios. Con relación a la cantidad de focos de calor registrados mensualmente, los meses de mayor registro de focos de calor van de junio a noviembre, siendo los meses de julio y agosto los que más repetidamente presentan los picos más elevados. En base a estos resultados y analizando los antecedentes de acciones en gestión de incendios forestales, ya emprendidas por organizaciones e instituciones en la RPNSR, se propuso un Plan de Prevención y Control de Incendios Forestales con los puntos más resaltantes.
Therapy of patients with COVID-19: clinical studies and recommendations in different countries
Authors: Zaikov S. V. 
Published: July 2021

BACKGROUND. During 2020 coronavirus disease (COVID-19) is at the focus of many scientific studies. National approaches to the management of conditions associated with the SARS-CoV-2 can differ significantly due to socio-economic characteristics, capabilities of the health care system in different regions of the world, inertion in making regulatory decisions, as well as the variability and limitations of evidence base regarding effectiveness of various therapeutic approaches.
OBJECTIVE. To review guidelines and clinical experience in the management of patients with COVID-19 around the world.
RESULTS. National guidelines for COVID-19 management can vary significantly in different regions of the world. The governments of each country, in cooperation with leading experts and taking into account global experience, choose and constantly adjust the best ways to overcome COVID-19 epidemic in local population.
CONCLUSIONS. The choice of methods for prevention and treatment of COVID-19 is associated with the capabilities of the healthcare system, regional level of antibiotic resistance, current epidemiological conditions, socio-economic factors, etc. Over the past 5-6 months the epidemiological conditions in different regions of the world have varied significantly, which could create unequal conditions for conducting high-quality clinical trials with a large number of participants. Even within one country the conclusions and recommendations for the treatment of COVID-19 developed by different medical associations and expert groups may differ significantly. Expert organizations conduct an independent evaluation of emerging clinical experience in the treatment of COVID-19 and come to different conclusions. This phenomenon is quite normal and desirable to minimize systematic error in the context of rapidly updating clinical evidence.
Pattern of Skin Diseases at Upazilla Level
Authors: Hoq Abu Jafar Md Shahidul , Rahman Gazi Md Matiur , Sultana Fahmida , Hasan Mahmudul 
Published: July 2021

Skin the largest organ in the human body plays a vital role in one's health care. This anatomical barrier regulates the body temperature and interface with the environment for protecting the body against pathogens. The type of skin problems varies in different geographical areas, climate, economic and other factors including personal characteristics such as age and sex. The pattern of skin diseases varies from one area to another and across different parts within the same country. A retrospective study was done among patient attending Upazilla health complex, South Matlab OPD during the period January 2014 to 31 Dec 2014. To determine the pattern of skin diseases seen in a rural upazilla community. All patients attending the Skin & VD outpatient department were included in this study. All those with dermatological complaints were examined in detail, brief relevant history was elicited and clinical diagnosis was made by a consultant dermatologist. Patient of Skin diseases comprised 8984 (12 % of total 74870 patients at OPD). The most common age group was 11-20 years (36.06%). Infective disorders were found in 62% and non-infective disorders in 32%, of all the dermatological cases. Fungal infections (48.20%) were the most common among infective dermatoses, whereas bacterial infections were 2nd in position. Among the non-infective dermatoses, eczemas were the most common (33.54%) followed by urticaria (23.78%). In our study, higher prevalence of infective dermatoses especially fungal infections was more common at rural upazilla level. Since the placement of dermatologists at Upazilla Health Complexes, non-infective dermatoses were also identified in great numbers e.g. Urticaria, Psoriasis, Lichen planus, Pityriasisalba Polymorphic Light Eruption, and vitiligo. These patients were diagnosed, treated and followed up regularly at primary health care settings.
CBMJ 2017 January: Vol. 06 No. 01 P: 08-11
Serum Potassium and Calcium Level in Malnourished Children of Bangladesh
Authors: Paul Arup Ratan , Mia Md Abdur Razzaque , Ansary Nahid Bintay , Tumpa Manisha Paul , Rahman Md Mahamudur , Biswas Suttam Kumar 
Published: July 2021

Protein-energy malnutrition (PEM) also referred to as protein-calorie malnutrition, is a potentially fatal body-depletion disorder. PEM develops in children and adults whose consumption of protein and energy is insufficient to satisfy the body's nutritional needs. The modified ‘Wellcome classification' was used to classify the PEM in children into marasmus, kwashiorkor, marasmic-kwashiorkor and underweight. However, in most cases the deficiency is combined. It was found that among the South Asian countries (Surveyed from 1990-2000) prevalence of wasting was 11.6% in Bangladesh, 18% in India, 11% in Pakistan, 11% in Nepal, 14% in Srilanka, 4% in Bhutan and 17% in Maldives. Malnutrition increases one's susceptibility to and severity of infections, and is thus a major component of illness and death from the diseases. This, a cross sectional study for a period from July 2008 to June 2009 to explore the changes of serum electrolytes in PEM so that effective measures making availability of adequate proteins and calories to all age groups especially to under five children through the ongoing nutrition programs to save these group of children. A total of 100 subjects aged 18 months to 5 years were enrolled for this study. Out of them 50 were the severely malnourished children regarded as Group I and 50 apparently healthy children considered as Group II. Z score of weight-for-age of Group I and Group II children were calculated by using CDC growth chart: USA, 2000. Data were collected through clinical evaluation from pre selected questionnaires and blood samples were taken for laboratory investigations. Serum potassium was measured by Ion selective electrode (ISE) method & serum calcium was determined by Colorimetric method using the test kit. Statistical significance of difference between two groups were evaluated by using unpaired 't’ test with the help of SPSS software package. For each analytical test, the level of significance was set at 0.05 and p-value < 0.05 was considered significant. Analyzing the findings of the present study, it can be concluded that significant decrease of serum potassium and calcium occur in malnourished children.
CBMJ 2017 January: Vol. 06 No. 01 P: 12-16
Role of Ultrasonographic Measurement of Fetal Head Circumference in the Evaluation of Gestational age in Bangladeshi Women
Authors: Sharma Netay Kumer , Dey Sankar Narayan , Rahman Md Masudur , Zahan Akter , Islam Mahzabeen , Mukthadira - 
Published: July 2021

Determination of gestational age by ultrasound has now become an integral part of maternal antenatal care. Accurate assessment of gestational age by sonography is now essential for obstetric management particularly due to term, preterm and post date management. Timing of elective caesarean delivery and decision whether to consider a fetus at risk for intrauterine growth retardation depends in part on the estimated age. In this study gestational age was determined on the basis of head circumference (HC) and correlation was established between weeks of gestation calculated from LMP. A cross sectional study was carried out in the department of Radiology & Imaging, Mymensingh Medical College Hospital during the period of January 2011 to June 2012. Three hundred ninety seven normal pregnant Bangladeshi women age range from 20 to 36 years with apparently healthy fetuses between 18 to 38 weeks of gestation referred for ultrasonic evaluation of pregnancy profile. Mean age was 29.60 years with standard deviation (SD) +0.67. Aim of this study was to determine relationship between menstrual age and HC. Result of this study may give idea about gestational age calculated by LMP of 397 cases and expressed in weeks. Estimated gestational age was determined by HC evaluated by US and expressed in weeks. Significant positive correlation was found between gestational age measured by HC and LMP. Estimated gestational age measured by HC had very close relation with weeks of gestation(LMP), which is 2 to 3 days less from weeks of gestation (LMP) during 18-38 weeks of gestation variation was only 2 to 4 days less from weeks of gestation (LMP). A strong positive significant correlation (r=0.987, P<0.001) was found between weeks of gestation and predicted gestational age measured from HC. Significant relationship between gestational age measured by LMP with estimated gestational age evaluated by head circumference.
CBMJ 2017 July: Vol. 06 No. 02 P: 06-11
Trend of ABO and Rh Blood Group among the Students of Community Based Medical College Bangladesh
Authors: Begum Nilufar , Haque Amdadul , Tumpa Fatema Akhter 
Published: July 2021

This cross sectional study was done at department of Transfusion Medicine in Community Based Medical College (CBMCB) to know the Prevalence of ABO blood group and Rh group systems among the students selected for admission into CBMCB. Sample size was 555. Male female ratio was 67:33 with mean age was ±19 years. Maintaining aseptic precaution blood samples were collected by venepuncture with disposable syringe without anticoagulant. Antigen-antibody agglutination test was done in slide method for ABO and Rh(D) blood grouping by mixing individual blood sample with Anti A, Anti -B, Anti-D human antisera. Results were taken by visually and under microscope in low power. Blood group differs person to person due to genetically determined antigen. This study showed highest frequency of blood group B (33.5%) followed by O (32.5 %), A (23.37%) and AB (10.63%) in ABO system and In Rhesus system, frequency of Rh-positive was 97.12% and Rh-negative was 2.88%. Results were comparable with different foreign studies. Fair blood grouping assist the safe blood transfusion and reduce the morbidity and mortality considerably.
CBMJ 2017 July: Vol. 06 No. 02 P: 12-14
Heavy metal concentration in commonly sold stem vegetables in Dhaka city market and probable health risk
Authors: Sultana Romana , Chamon AS , Mondol MN 
Published: July 2021

The present study was carried out to assess the concentration of chromium (Cr), cadmium (Cd), lead (Pb), nickel (Ni), copper (Cu), zinc (Zn), iron (Fe) and manganese (Mn) in four stem vegetables such as Potato (Solanum tuberosum L.), Ginger (Zingiber officinale Roscoe), Garlic (Allium sativumL.) and Onion (Allium cepa L.) by using Atomic Absorption Spectrophotometer (AAS). Average daily intake (ADI), hazard quotient (HQ) and hazard index (HI) were also estimated to assess the human health risks posed by heavy metals from the consumption of the studied vegetables. The studied stem vegetable samples were collected in four phases from Kawran Bazar fresh vegetable market of Dhaka city of Bangladesh. Mean concentrations of Cr, Cd, Pb, Ni, Cu, Zn, Fe and Mn in the studied stem vegetables ranged between 0.88 to 2.35, 0.08 to 0.15, 0 to 2.25, 0 to 3.30, 5.70 to 9.85, 18.83 to 40.67, 50.60 to 456.38 and 9.23 to 852.35 mg/kg of dry weight, respectively. Mean concentration of maximum permissible limit (MPL) exceed in onion for Cr, in potato and onion for Pb and in ginger for Fe, Ni and Mn. Average daily intake was found to be lower than the maximum permitted tolerable daily intake in most cases except for Mn (26.475 mg/person/day) for consumption Ginger. Hazard quotient of Mn for dietary intake of Ginger (3.152) and hazard indices of Ginger (4.626), Garlic (1.183) and Onion (1.069) exceeded unity, signifying potential health risks from the dietary intake of these vegetables. This study suggests regular monitoring of heavy metals in vegetables to avoid the potential health hazards on human.
Dhaka Univ. J. Biol. Sci. 30(2): 221-232, 2021 (July)
Psychological needs assessment of primary school going students of Dhaka
Authors: Das James Simon , Naher Jamiun 
Published: July 2021

The present study was conducted with the following objectives: (a) assessing the mental health and psychological understanding among the primary school going students through the respective stakeholder's views, (b) investigating the psychological needs of primary school going students, (c) identifying the gaps between provided psychological services and required demands among students and (d) collecting relevant and consistent data and information to plan future interventions and produce hypothesis for further study. Since it was a qualitative study, 16 focus group discussions (FGDs), 39 interviews, and several observations in four schools were made with 123 purposive samples (73 primary school going students, 21 parents, and 29 mental health workers and other staff). For the assessment, two self-made guidelines for different stakeholders and thematic analysis for data analysis were used in this present study. The results showed that most of the primary school going especially the govt. and madrasah going students are not aware of their mental health while bearing a lot of symptoms of behavioral, emotional, and psychological issues, but students from private English medium schools possess sound knowledge about it. The results also indicated that there is a huge gap between psychological burdens and provided services. The absence of culturally validated assessment tools and intervention techniques, collaboration among different professionals, and lack of subject experts and funds were also evident. Thus, to have healthy and welladjusted future generations, measures should be taken immediately.
Dhaka Univ. J. Biol. Sci. 30(2): 243-259, 2021 (July)
Community structure of protozoan parasites in Heteropneustes fossilis (Bloch 1794) in Bangladesh
Authors: Bhuiyan Md Aminul Islam , Jhinu Zannatun Nahar , Parveen Rita , Hawlader Abdul Jabber 
Published: July 2021

The study was conducted to prepare a database for the infection status of protozoan parasites on an important host fish species of Bangladesh, Heretropneustes fossilis. Host samples were collected from the freshwater habitats of six different districts of Bangladesh- Manikganj, Faridpur, Mymensingh, Kishoreganj, Bogura, and Jashore. H. fossilis was noted to be infected by 6 parasite species, of which 3 belonged to myxozoa (Henneguya singhi, Henneguya qadrii and Henneguya mystusia); 1 belonged to ciliophora (Trichodina siddiquae) and 2 (Trypanosoma singhii and Piscinoodium pillulare) belonged to mastigophora.The parasites, Trypanosoma singhii and Henneguya singhi were recorded as new locality record in H. fossilis. The three parasites Piscinoodium pillulare, Henneguya qadrii and Henneguya mystusia were the first recorded parasites in this fish and the first locality record in Bangladesh. The parasites were observed to occupy gill, body slime, and blood. Gill parasites were abundantly found compared to body slime and blood parasites. The highest prevalence (67.21%) of infection of H. fossilis was observed in Manikganj and the lowest prevalence (54.67%) of infection was observed in Bogura. Parasites of H. fossilis showed the highest diversity in fishes of Faridpur (2.63). Species richness of parasites was highest in Manikganj (0.38) and species evenness was relatively low (0.13-0.19) in almost all the study sites.
Dhaka Univ. J. Biol. Sci. 30(2): 307-316, 2021 (July)