bluuebunny/crossref_metadata_2025_split huggingface dataset:
II. Vibroloading the operator skidding tractor in acceleration process.
Authors: Александров В.А. , Ву Х.К. 
Published: September 2020

Разработана динамическая модель системы «Машинист – трелевочный трактор – пачка деревьев». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система дифференциальных уравнений решена относительно упругой деформации подвеса сиденья. Апробация модели осуществлена на примере серийного трелевочного трактора ТБ-1.
In article the dynamic model of system is developed «the operator – skidding tractor tree bunch». The mathematical description is worked out in the form of the eguation of Lagrazha second number. The system of the eguations is solved concerning elastic deformation of the suspension seats. Model approbation is carried out on an exemple of serially skidding tractor TB-1.
Effect of wood thermal modification on cutting power consumption during circular sawing
Authors: Староверов Р.Л. , Шарапов Е.С. , Королев А.С. 
Published: September 2020

Статья посвящена изучению энергоемкости процессов продольного и поперечного пиления термически модифицированной древесины сосны (Pinus Sylvestris), березы (Bétula Péndula) и дуба (Quércus Róbur) круглыми пилами. Проведен краткий обзор работ в области изучения процесса пиления древесины круглыми пилами, а также анализ влияния различных факторов на процесс пиления древесины. Входные факторы эксперимента - высота и ширина пропила (мм), скорость подачи (м/мин), потеря массы древесины после термической модификации (%). Разработаны экспериментальная лабораторная установка и измерительный шлейф на основе устройства сбора данных «National Instruments USB-6008». Получены статистически значимые регрессионные модели влияния входных факторов эксперимента на энергоемкость процессов продольного и поперечного пиления термически модифицированной древесины сосны, березы и дуба круглыми пилами. Наблюдается значимое уменьшение энергоемкости процесса пиления древесины круглыми пилами с увеличением интенсивности (потери массы) термической модификации для всех исследуемых пород. Снижение мощности на продольное пиление термически обработанных образцов, в сравнении с необработанной древесиной, составило, в среднем, 14,6 и 25,6% для древесины сосны, 13,3 и 33,2% для древесины березы, 9,5 и 21,8% для древесины дуба при потерях массы соответственно 4 и 8%. Мощность при поперечном пилении термически модифицированных образцов, в сравнении с необработанной древесиной, в среднем, снизилась на 17 и 27% для древесины сосны, на 26 и 46% для древесины березы, на 10 и 17% для древесины дуба при потере массы соответственно 4 и 8%.
The article concerned with the power requirements of longitudinal and transverse circular sawing process of thermally modified pine (Pinus Sylvestris), birch (Bétula Péndula) and Oak (Quércus Róbur). The short review of materials in the field of wood sawing process and effect of some factors on circular sawing are presented. Input factors of the experiment were: depth and width of sawing (mm), feeding speed (m/min) and mass loss of the specimens after thermal modification (%). An experimental laboratory setup and measuring loop on the basis of DAQ-X «National Instruments USB-6008» were developed. Regression models of correlation between input factors and power requirements of longitudinal and transverse round sawing of thermally modified timber (TMT) were received. There is a significant reduction of power consumption of TMT round sawing with increasing the intensity of thermal modification for all wood species. For longitudinal TMT sawing and 4 and 8% of mass loss in comparison with untreated wood averaged decreasing of power requirements were 14.6 and 25.6% for pine, 13.3 and 33.2% for birch, 9.5 and 21.8% for oak. For transverse TMT sawing and 4 and 8% of mass loss in comparison with untreated wood averaged decreasing of power requirements were 17 and 27% for pine, 26 and 46% for birch, 10 and 17% for oak.
Designing the structure of information support of the road transport hauling
Authors: Гусев Ю.В. , Капустин В.П. , Козлов В.Г. , Скрыпников А.В. 
Published: September 2020

Рассмотрены общие принципы информационного обеспечения системы лесовозного автомобильного транспорта, а также основы функционирования систем лесовозного автомобильного транспорта и информационного обеспечения. При разработке решений информационного обеспечения определены основные критерии и мероприятия по оптимизации информационного обеспечения систем функционирования лесовозного автомобильного транспорта. Выделены этапы структуры информационного обеспечения. Определено, что главной задачей системы управления информационного обеспечения функционирования лесовозного автомобильного транспорта является достижение максимума некоторого функционала (составленного из отдельных критериев) при определенных ограничениях на выбор управляющих воздействий за счет изменения параметров системы. По результатам исследования сделаны выводы, из которых следует, что нормальное функционирование лесовозного автомобильного транспорта связано со способностью информационного обеспечения системы лесовозного автомобильного транспорта к адаптации в зависимости от изменения конкретных условий, а также определены границы внешней и внутренней среды, установлены два механизма контроля системы управления информационным обеспечением лесовозного автомобильного транспорта.
Deals with the General principles of information support system of timber transportation road transport, as well as the basics of system operation logging of road transport and information provision. When developing solutions for information security defines the basic criteria and measures for optimization of information support systems in the functioning of forest road transport. The stages of the structure of information provision. Determined that the main task of the management system of information support of the functioning of forest road transport is to achieve the maximum of some functional (composed of individual criteria) under certain restrictions on the choice of control actions by changing the system parameters. According to the study findings, which suggests that the normal functioning of the timber-carrying road transport is associated with the ability of the information support system of timber-carrying road transport to adapt depending on changes in specific conditions, but also defined the boundaries of the external and internal environment, are two of the control mechanism of the system control information maintenance hauling road transport.
Especially in the creation of digital terrain models for designing the transport network of multi-purpose forest management
Authors: Громов И.А. , Тюрин Н.А. 
Published: September 2020

При проектировании лесной транспортной сети в условиях многоцелевого, непрерывного и неистощительного лесопользования в рамках модели интенсивного лесного хозяйства, необходимо обладать информацией об экономической целесообразности транспортного освоения участков лесной территории. Для решения данной проблемы возможно создание цифровой модели местности (ЦММ), отражающей распределение чистого дохода (ЧД) от освоения лесов по территории объекта проектирования. Создание ЦММ включает в себя четыре этапа: сбор исходной информации; ГИС-анализ; определение ЧД; создание ЦММ в ГИС. На первом этапе осуществляется сбор данных, необходимых для определения значения ЧД и создания модели в ГИС. На втором этапе осуществляется интеграция данных в ГИС, их обработка и анализ с целью получения показателей для определения ЧД. На третьем этапе осуществляется расчет показателя ЧД для каждой первичной единицы транспортного освоения. На завершающем этапе, на базе вычисленных значений ЧД, в ГИС создается тематическая карта, отражающая уровни ЧД. Использование рассматриваемой методики позволяет сформировать ЦММ, которая наглядным образом отражает экономическую целесообразность транспортного освоения участков леса, что является основой для проектирования размещения элементов лесной транспортной сети. Методика создания ЦММ является составной частью более общей методики проектирования транспортной сети в условиях многоцелевого, непрерывного и неистощительного лесопользования.
When designing the forest transport network in terms of multi-purpose, continuous and sustainable forest management in the framework of the model of intensive forest management requires information about the economic feasibility of the transport development in areas of forest land. To solve this problem, it is possible to create digital terrain model (DTM) showing the distribution of net income (NI) the forest areas with the forest transport network development. The technique of creating DTM includes four stages: collection of baseline information; GIS analysis; determination of the NI; the establishment of the DTM in GIS. The first stage is collecting the data necessary to determine the value NI and create a model in GIS. The second stage involves the integration of data into GIS, their processing and analysis with the aim of obtaining indicators for the determination of NI. In the third stage calculated NI for each primary unit of the transport network development. At the final stage, on the basis of specific values of NI in the GIS generated thematic map reflecting the levels of NI. Using this technique allows to creating DTM which visually reflects the economic feasibility of the transport development forest, what is the basis for the design and layout of the elements of the forest transportation network. The technique of developing ETM is integral part of a more General methodology for the design of the transport network in terms of multi-purpose, continuous and sustainable forest management.
QUALIDADE DE PRAÇAS E PARQUES URBANOS PELA PERCEPÇÃO DA POPULAÇÃO
Authors: Nogueira Martins Guilherme , Branco do Nascimento Ana Paula , Lucia Casteli Figueiredo Gallardo Amarilis 
Published: September 2020

Os espaços verdes urbanos são áreas provedoras de relevantes serviços ecossistêmicos para a sociedade. Dentre esses destacam-se os serviços ecossistêmicos culturais responsáveis pelo fornecimento de recreação, educação e percepção estética e espiritual, possibilitando a ampliação da qualidade de vida dos cidadãos urbanos. Praças e parques urbanos têm sido destacados na literatura como potenciais áreas verdes na oferta desses serviços ecossistêmicos. A governança ambiental dessas áreas verdes urbanas envolve a qualidade desses espaços, e, se for direcionada à promoção de melhores espaços verdes, infraestruturas e equipamentos pode ampliar as funções sociais e ambientais dessas áreas. O objetivo deste artigo é avaliar a percepção da população do entorno acerca da qualidade de áreas verdes considerado o potencial intrínseco de oferta de serviços ecossistêmicos. Para tanto, selecionou-se um bairro de Osasco, São Paulo, cidade brasileira que possui várias praças e parques urbanos. As 216 entrevistas com moradores foram analisadas estatisticamente. Os resultados mostram que a população do entorno dessas áreas verdes percebe a importância da qualidade dessas áreas e da sua infraestrutura. Os resultados apontam que praças e parques necessitam de melhorias pelo órgão gestor, embora a população perceba que os parques estão melhor cuidados que as praças. Entende-se que esse mapeamento de percepção das áreas verdes pelos usuários pode representar uma oportunidade para a gestão pública local compreender os anseios da população e permitir que os potenciais serviços ecossistêmicos, principalmente, os culturais possam ser ampliados e desfrutados por um número maior de habitantes do bairro.
COVID-19 and Pneumolysis Simulating Extreme High-altitude Exposure with Altered Oxygen Transport Physiology; Multiple Diseases, and Scarce Need of Ventilators: Andean Condor's-eye-view
Authors: Zubieta-Calleja Gustavo , Zubieta-DeUrioste Natalia , Venkatesh Thuppil , Das Kusal K. , Soliz Jorge 
Published: September 2020

Background:
Critical hypoxia in this COVID-19 pandemic results in high mortality and
economic loss worldwide. Initially, this disease’ pathophysiology was poorly understood and interpreted
as a SARS (Severe Acute Respiratory Syndrome) pneumonia. The severe atypical lung CAT
scan images alerted all countries, including the poorest, to purchase lacking sophisticated ventilators.
However, up to 88% of the patients on ventilators lost their lives. It was suggested that
COVID-19 could be similar to a High-Altitude Pulmonary Edema (HAPE). New observations and
pathological findings are gradually clarifying the disease.

Methods:
As high-altitude medicine and hypoxia physiology specialists working and living in the
highlands for over 50 years, we perform a perspective analysis of hypoxic diseases treated at high
altitudes and compare them to Covid-19. Oxygen transport physiology, SARS-Cov-2 characteristics,
and its transmission, lung imaging in COVID-19, and HAPE, as well as the causes of clinical
signs and symptoms, are discussed.

Results:
High-altitude oxygen transport physiology has been systematically ignored. COVID-19
signs and symptoms indicate a progressive and irreversible failure in the oxygen transport system,
secondary to pneumolysis produced by SARS-Cov-2’s alveolar-capillary membrane “attack”.
HAPE’s pulmonary compromise is treatable and reversible. COVID-19 is associated with several
diseases, with different individual outcomes, in different countries, and at different altitudes.

Conclusions:
The pathophysiology of High-altitude illnesses can help explain COVID-19 pathophysiology,
severity, and management. Early diagnosis and use of EPO, acetylsalicylic-acid, and
other anti-inflammatories, oxygen therapy, antitussives, antibiotics, and the use of Earth open-circuit-
astronaut-resembling suits to return to daily activities, should all be considered. Ventilator use
can be counterproductive. Immunity development is the only feasible long-term survival tool.
Synthesis and Evaluation of Cytotoxic Activity of Certain Benzo[h]chromene Derivatives
Authors: Awad Samir M. , Mohamed Mosaad S. , Khodair Marwa Abd El-Fattah , El-Hameed Rania H. Abd 
Published: September 2020

Background:Benzo[h]chromenes attracted great attention because of their widespread biological activities, including anti-proliferate activity, and the discovery of novel effective anti-cancer agents is imperative.Objective:The main objective was to synthesize new benzo[h]chromene derivatives and some reported derivatives, and then test all of them for their anti-cancer activities.Methods:The structures of the newly synthesized derivatives were confirmed by elemental and spectral analysis (IR, Mass,1H-NMR and13C-NMR). 35 compounds were selected by the National Cancer Institute (NCI) for single-dose testing against 60 cell lines and 3 active compounds were selected for 5-doses testing. Also, these 3 compounds were tested as EGFR-inhibitors; using sorafenib as standard, and as Tubulin polymerization inhibitors using colchicines as a standard drug. Moreover, molecular docking study for the most active derivative on these 2 enzymes was also carried out.Results:Compounds 1a, 1c and 2b have the highest activities among all 35 tested compounds especially compound 1c.Conclusion:compound 1c has promising anti-cancer activities compared to the used standards and may need further modification and investigations.
Moxifloxacin Based Triple Therapy as Alternative to Standard Therapy in Helicobacter Pylori Eradication
Authors: Ahmed Mohammed H. , Abd-Elsalam Sherief , Mahrous Aya M. 
Published: September 2020

Introduction:
Helicobacter pylori eradication remains a problematic issue. We are in an
urgent need for finding a treatment regimen that achieves eradication at a low cost and with less
side effect. Recent published results have shown a high rate of resistance with clarithromycinbased
treatment regimens. The aim of the study was to compare moxifloxacin therapy and classic
clarithromycin triple therapy in H. pylori eradication.

Methods:
This was a pilot study that enrolled 60 patients with helicobacter pylori associated gastritis.
Diagnosis was done by assessment of H. pylori Ag in the stool. The patients were randomly assigned
to receive either moxifloxacin based therapy (Group A), or clarithromycin based therapy
(Group B) for two weeks. We stopped the treatment for another two weeks and then re-evaluation
for cure was done.

Results:
90% of patients had negative H. pylori Ag in the stool after 2 weeks of stoppage of the
treatment in group A versus 66.7% in Group B. None of the patients in both the groups had major
side effects.

Conclusion:
Moxifloxacin-based therapy showed higher eradication power and less resistance
when compared to clarithromycin triple therapy.
Non-Invasive Mechanical Ventilation in Children with Previous Unsuccessful Weaning from Respiratory Therapy
Authors: Filyk Olha 
Published: September 2020

The objective of the research was to establish the impact of diaphragm-protective mechanical ventilation on the rate of successful weaning from invasive and non-invasive mechanical ventilation in children with acute respiratory failure.
Materials and Methods. We conducted a prospective, observational cohort study. Seventy-eight patients were randomly divided into 2 groups: patients of Group I received lung-protective mechanical ventilation; patients of Group II received diaphragm-protective + lung-protective mechanical ventilation. For age-specific data analysis, patients were divided into age subgroups: the 1st subgroup included children being 1 to 12 months old; the 2nd age subgroup comprised children being 12 to 36 months old. We started respiratory support in both groups with invasive mechanical ventilation and when patients met the criteria, we weaned them. We confirmed successful weaning, when patients had no need to be mechanically ventilated within next 48 hours, otherwise, they were intubated again. Before the second trial to wean, patients in Group I were simply extubated, while patients in Group II received non-invasive mechanical ventilation. The primary endpoint was the rate of successful weaning from mechanical ventilation in the first trial. The secondary outcomes were complications, namely reintubation rate, tracheostomy rate and death.
Results. We found a significant difference in the primary outcome for the 1st age subgroup: there were 72.4% in Group I vs. 52.6% in Group II successfully weaned patients (p=0.04). No significant difference in the primary outcome was observed in the 2nd age subgroup: there were 80% in Group I vs. 82.3% in Group II successfully weaned patients (p=0.78). There were significant differences in the secondary outcomes between groups in the 1st age subgroup, namely reintubation rate was seen in 9.1% patients of Group I vs. 36.8% patients of Group II (p=0.05); death happened in 18.2% cases in Group I vs. no cases in Group II (p=0.01). There were no differences in tracheostomy rate in the 1st age subgroup and there were no differences in the secondary outcomes between groups in 2nd age subgroup.
Conclusions. Diaphragm-protective mechanical ventilation significantly reduced the incidence of successful weaning from invasive mechanical ventilation; however, it increased the incidence of successful weaning from non-invasive mechanical ventilation, and, significantly decreased the mortality rate in the 1st age subgroup, while in the 2nd age subgroup, it had no impact on the incidence of successful weaning from invasive mechanical ventilation and mortality rate.
Study of the Association Between Antihyperglycemic Therapy and Cancer in Patients with Type 2 Diabetes Mellitus
Authors: Vatseba Tamara , Sokolova Liubov , Pushkarev Volodymyr , Koshel Nataliia 
Published: September 2020

The objective of the research was to investigate the features and association of antihyperglycemic therapy and cancer in patients with type 2 diabetes mellitus.
Materials and Methods. The study included the analysis of medical records of patients with type 2 diabetes mellitus who were diagnosed with cancer during 2012-2016. The obtained results were processed by statistical methods using the software packages Microsoft Excel and Statistika-12. The significance of differences between the frequency of using different treatment schemes was assessed by the Pearson’s test (χ²). To determine the risk of predicted events, the odds ratio, the 95% confidence interval, the positive and negative prognostic values were calculated.
Results. There were diagnosed 533 cases of cancer in patients with type 2 diabetes mellitus. The most common scheme of antihyperglycemic therapy prior to the detection of malignant diseases was a combination of metformin and sulfonylurea derivatives (35.65%), as well as monotherapy with sulfonylurea derivatives (17.26%) and metformin (11.28%). Prior to diagnosing cancer in 396 (74.30%) patients, antihyperglycemic therapyalong with sulfonylurea derivatives and insulin was used. Among obese patients 68.82% used sulfonylureas and insulin as part of antidiabetic therapy before diagnosis of cancer. The connection between insulin therapy and the risk of cancer development in patients with type 2 diabetes mellitus was proved (the odds ratio=2.35; the 95% confidence interval (1.91 - 2.91); p<0.001).
Conclusions. Prior to the detection of cancer in patients with type 2 diabetes mellitus, the combination therapy with metformin and sulfonylurea derivatives was most often used. The association between insulin therapy and the development of cancer in patients with type 2 diabetes mellitus was revealed. Cancer screening is advisable for patients with type 2 diabetes mellitus and obesity, who receive as a therapy sulfonylurea derivates and/or insulin.
Antimicrobial Resistance Profile Among Major Bacterial Pathogens in Southern Babil, Iraq
Authors: AL-Khikani Falah Hasan 
Published: September 2020

Background: At present, drug-resistant pathogens are considered one of the major increasing causes of morbidity and mortality around the world. The data on microorganisms' resistance assist define the best available treatment for patients. Therefore, this study aimed to screen the antimicrobial-resistant profile of different drugs in major clinical pathogens of urine, ear and wound infections.
Methods: This study was conducted in Al-Shomali General Hospital, Southern Babil, Iraq from October 2019 to May 2020. Totally 67 clinical specimens obtained from the wound, urine, and ear discharge collected from hospitalized patients as well as 30 healthy individuals participate in this study. Then, the standard microbiological methods carried outperformed to the isolated and identified bacterial species. Antimicrobial susceptibility tests were performed using different antimicrobial discs by applying the Kirby–Bauer disc diffusion method.
Results: Totally, 67 bacterial isolates were obtained from 44 (66%) female and 23 (34%) male patients. Staphylococcus aureus and E. coli were the most common predominant organisms. All isolates were showed a high rate of resistance to evaluated cephalosporins 100% and 87% to cefotaxime and ceftriaxone respectively, while very low resistance recorded in Aminoglycosides 22% and 12% to Gentamicin and amikacin, respectively.
Conclusion: These results suggest a constant screening for the detection of antibiotic resistance, as well as developing antimicrobial stewardship programs in Babil, Iraq. Moreover, these bacterial isolates have shown multidrug resistance, mainly to commonly administered drugs that could cause therapy ineffective. Therefore, in clinical use, appropriate treatment should be chosen based on the results obtained from antimicrobial susceptibility tests.