bluuebunny/crossref_metadata_2025_split huggingface dataset:
Metabolomics Reveals the Renoprotective Effect of N-butanol Extract and Amygdalin Extract From Amygdalus Mongolica in Rats With Renal Fibrosis
Authors: BAI wanfu , Liu Qing , Chang Hong , Liu Quanli , Gao Chen , Bai Yingchun , Zhou Hongbing , Shi Songli 
Published: September 2020

Abstract
Background: Renal fibrosis is a pathological process of progression from chronic kidney disease to end-stage renal disease, which threaten human health. Amygdalus mongolica is a traditional Chinese medicine, and our previous studies demonstrated that the n-butanol extract (BUT) and amygdalin extract (AMY) from its seeds, which are effective components of A. mongolica, can prevent renal fibrosis (RF). The present study was to investigate the exact mechanism of the protective effect of A. mongolica on RF. Methods: The RF rat model was established through unilateral ureteral obstruction (UUO). Biochemical indicators were measured, combined with histopathology of renal tissue, to evaluate the anti-RF effects of the extracts of A. mongolica. A serum metabonomic method based on UPLC-QTOF-MS was used to clarify the changes in the metabolic profile among the different groups. Results: We found that tubulointerstitial damage and fibrosis were significantly improved, metabolic perturbations were restored after treatment with BUT and AMY. Thirty-eight metabolites associated with RF progression and related to the regulation of arginine and proline metabolism, nicotinate and nicotinamide metabolism, histidine metabolism and pentose and glucuronate interconversions were identified. They were restored to levels similar to those observed in controls by treatment with AMY and BUT. Moreover, no significant differences in efficacy were observed between the BUT and AMY groups. Conclusions: The results demonstrated that antifibrotic effects of A. mongolica in rats with RF. It was the first to reveal the potential mechanisms of the renoprotective effects after treatment with BUT and AMY from A. mongolica.
Impact of SARS-CoV-2 infection on the recovery of peripheral blood mononuclear cells by density gradient
Authors: Manunta Maria D. I. , Lamorte Giuseppe , Ferrari Francesca , Trombetta Elena , Tirone Mario , Bianco Cristiana , Cattaneo Alessandra , Santoro Luigi , Baselli Guido , Brasca Manuela , Ostadreza Mahnoosh , Erba Elisa , Gori Andrea , Bandera Alessandra , Porretti Laura , Valenti Luca V. C. , Prati Daniele 
Published: September 2020

Abstract
SARS-CoV-2 virus infection is responsible for coronavirus disease (COVID-19), which is characterised by a hyperinflammatory response that plays a major role in determining the respiratory and immune-mediated complications of this condition. While isolating peripheral blood mononuclear cells (PBMCs) from whole blood of COVID-19 patients by density gradient centrifugation, we noticed some changes in the floating properties and in the sedimentation of the cells on density medium. Investigating this further, we found that in early phase COVID-19 patients, characterised by reduced circulating lymphocytes and monocytes, the PBMC fraction contained surprisingly high levels of neutrophils. Furthermore, the neutrophil population exhibited alterations in the cell size and in the internal complexity, consistent with the presence of low density neutrophils (LDNs) and immature forms which may explain the shift seen in the floating abilities and that may be predictive of the severity of the disease. The percentage of this subset of neutrophils found in the PBMC band was rather spread (35.4±27.2%, with a median 28.8% and IQR 11.6-56.1, Welch’s t-test early phase COVID-19 versus blood donor healthy controls P<0.0001). Results confirm the presence of an increased number of LDNs in patients with early stage COVID-19, which correlates with disease severity and may be recovered by centrifugation on a density gradient together with PBMCs.
TW-SIR: Time-window based SIR for COVID-19 forecasts
Authors: Liao Zhifang , Lan Peng , Liao Zhingning , Zhang Yan , Liu Shengzong 
Published: September 2020

Abstract
Since the outbreak of COVID-19, many COVID-19 research studies have proposed different models for predicting trend of COVID-19. Among them, the prediction model based on mathematical epidemiology (SIR) is the most widely used, but most of these models are adapted in special situations based on various assumptions. In order to reflect the real-time trend of the epidemic in the process of infection for different areas, different policies and different epidemic diseases, a general adapted time- window based SIR model is proposed, which is characterized by introducing a time window mechanism for dynamic data analysis and using machine learning method predicts the Basic reproduction number R0 and the exponential growth rate of the epidemic. Multiple data sets of epidemic diseases are analyzed, and the numerical results showed that the framework can effectively measure the real-time changes of the parameters during the epidemic, and error rate of predicting the number of COVID-19 infections in a single day is within 5%
Criterion for the estimation of forest reproduction
Authors: Тихонов А.С. 
Published: September 2020

Лесной кодекс РФ требует обеспечивать воспроизводство леса – процесс восстановления леса с присущими ему природными свойствами. Чтобы на практике не разреживали чрезмерно древостои для достижения большего участия целевых пород, критерий должен учитывать и относительную полноту I яруса. С этих позиций были проанализированы древостои ели, сосны и дуба после сплошных и равномерно-постепенных рубок в течение нескольких десятилетий под влиянием рубок ухода. Установлено, что более объективно отражает качество возобновление главных пород не шкала Гослесхоза по густоте подроста, а шкала по встречаемости его на учётных площадках размером по 10 м2. По величине встречаемости можно прогнозировать долю участия главной породы в сформировавшемся по составу древостое. Эффективной оказалась равномерно-постепенная рубка в ельнике, полнота I яруса составляла 0,50. Сосна возобновилась успешно и после сплошной рубки с минерализацией почвы гусеницами трелёвочного трактора в осенний период. Полнота яруса составила 0,73. Наилучшим образом возобновление дуба произошло при равномерно- постепенной рубке. Уже через год после окончательного приёма предварительный подрост и тонкомер дуба в возрасте 41–90 лет имели 5 единиц в составе яруса, а полнота – 0,78.
The forest code of the Russian Federation requires the reproduction of forests – the process of forest restoration with its inherent natural properties. In practice, the criterion should take into account the relative completeness of the first tier in order to avoid excessive thinning of stands in order to achieve greater participation of target species. From these positions analyzed stands of spruce, pine and oak after continuous and evenly-gradual felling for several decades under the influence of felling care. Found that more objectively reflects the quality of the resumption of the main species, not the scale of state forestry on the density of the undergrowth, and scale of occurrence of its on experimental plots measuring 10 m2. The magnitude of occurrence we can predict the equity share principle species formed in the composition of the forest stand. Effective was evenly-gradual felling in spruce, the completeness of the first tier was 0.50. Pine resumed successfully after clear cutting with the salinity of the soil by caterpillar skidder in autumn.
Quantification of noncellulosic polysaccharides and other components in vegetable raw materials
Authors: Евстигнеев Э.И. 
Published: September 2020

Предложен метод количественного определения нецеллюлозных полисахаридов в растительном сырье (древесине и сельскохозяйственных растениях). Он предусматривает определение в анализируемых образцах общего содержания полисахаридов и целлюлозы, а нецеллюлозные полисахариды определяются по разности. В качестве метода определения целлюлозы использовали азотно-спиртовый метод (метод Кюршнера), который отличается простотой и отсутствием необходимости предварительной экстракции образца, поскольку этанол является лучшим растворителем экстрактивных веществ среди индивидуальных растворителей. Для корректировки содержания целлюлозы Кюршнера на «чистую» целлюлозу в ней бромид-броматным методом определяются остаточные пентозаны. Как показали результаты анализа образцов с известным содержанием нецеллюлозных полисахаридов, разработанный метод позволяет определять указанные компоненты с высокой точностью (относительная ошибка определения не превышает 4,3%). Кроме того, в работе предложена схема определения основных компонентов растительного сырья. Она включает в себя определение полисахаридов, целлюлозы, нецеллюлозных полисахаридов, лигнина, экстрактивных веществ и золы. С ее помощью можно достаточно полно охарактеризовать компонентный состав сырья растительного происхождения, не прибегая к использованию специального оборудования. С помощью новой схемы анализа определены различия в содержании и составе полисахаридов древесины хвойных и лиственных пород.
The method of quantitative determination of noncellulosic polysaccharides in vegetable raw materials (wood and agricultural plants) is offered. He provides determination in the analyzed samples the general content of polysaccharides and cellulose, and noncellulosic polysaccharides are determined by a difference. As a method of determination of cellulose used Kürschner method which differs in simplicity and lack of need of preliminary extraction of a sample as ethanol is the best solvent of extractive substances among individual solvents. For correction of content of Kürschner cellulose on «pure» cellulose residual pentosans are determined by bromide bromated method. As have shown results of the analysis of samples with the known content of noncellulosic polysaccharides, the developed method allows to determine the specified components with high precision (the relative error of definition doesn't exceed 4.3%). Besides, in work the scheme determination of the main components of vegetable raw materials is offered. It includes determination of polysaccharides, cellulose, noncellulosic polysaccharides, lignin, extractive substances and ashes. With her help it is possible to characterize rather fully component composition of vegetable raw materials without resorting to use of the special equipment. Differences in contents and composition of polysaccharides of wood of coniferous and deciduous breeds are defined by the new scheme of the analysis.
Vibrating load of the operator of the feller-buncher in the process of cleaning the base of the tree from snow by turning the handle
Authors: Александров В.А. , Александров А.В. , Гомон Д.Ю. 
Published: September 2020

Разработана модель биодинамической системы «оператор – валочно- трелёвочная машина». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система уравнений решена относительно деформации упругой связи сидения с корпусом машины методом Рунге–Кутта с помощью среды программирования MathCAD. Апробация модели осуществлена на примере серийно выпускаемых валочно-трелёвочных машин в режиме очистки основания дерева от снега поворотом рукояти. Установлено, что вибронагруженность операторов ВТМ превышает санитарные нормы в 4–6 раз.
In article the model of biodynamic system is developed «the operator – feller – the packaging car (feller – buncher machine)». The mathematical description is worked out in the form of the equation of Lagrange second number. The system of the equations is solved concerning elastic deformation suspension seats of the operator by a method of Runge–Kutta, by MathCAD. Model approbation is carried out on an example of serially let out feller-buncher LP-17A in the dispersal mode at start-off from the place. As a result of researches it is established: vibroloading operators of feller-packaging cars exceeds the sanitary code in 4–6 times.
Systematic Review of the collection of tropical and subtropical plants of the Botanical Garden of Saint Petersburg State Forest Technical University on the basis of modern international classifications
Authors: Адонина Н.П. 
Published: September 2020

История коллекции тропических и субтропических растений Ботанического сада СПбГЛТУ насчитывает 175 лет с 1834 г., когда на территории СанктПетербургского Форст института была построена первая оранжерея. На протяжении почти двух веков коллекция формировалась и использовалась для обеспечения учебного процесса. В XIX начале XX вв. каталогизация коллекционных фондов проводилась по системе А. Энглера, начиная с 80х годов прошлого века по системе А.Л. Тахтаджяна. В работе представлен обзор коллекции тропических и субтропических растений на основе современных международных классификаций: APG IV, PPG I и т. д., основанных на молекулярных исследованиях и насчитывает 1344 таксона из которых 996 видов, 65 разновидностей и 283 культивара. Все растения относятся к классу Equisetopsida C.Agardh, и входят в состав 7 подклассов, 53 порядков, 124 семейств и 428 родов. Коллекция птеридофитов представлена тремя порядками и включает 14 семейств, 25 родов, 52 вида и 14 культиваров (66 таксонов). Коллекция голосеменных содержит 4 подкласса, 6 порядков, 9 семейств, 17 родов, 24 вида и 5 сортов (29 таксонов). Коллекция покрытосеменных имеет один подкласс Magnoliidae, 10 надпорядков, 41 порядок, 101 семейство, 386 родов, 920 видов, 65 тпр, 264 культивара (1249 таксонов). Международноунифицированный подход к классификации растений является важным шагом в усилении международной стандартизации обучения.
The history of the collection of tropical and subtropical plants of the Botanical Garden of St. Petersburg State Forest Technical University is 175 years old. It dates back to 1834, when the first greenhouse was built on the territory of the St. Petersburg Forest Institute. For almost two centuries, the collection was formed and used to support the educationprocess. In XIX and early XX centuries cataloging of collection funds was carried out according to the system of A. Engler, starting from 1980s, according to the system of A.L. Tahtajyan. The paper presents a review of the collection of tropical and subtropical plants based on modern international classifications (APG IV, PPG I, etc.), based on molecular studies. The collection accounts for 1344 taxons of which 996 species, 65 varietiesand 283 cultivars. All plants belong to the class Equisetopsida C.Agardh, and are included in 7 subclasses, 53 orders, 124 families and 428 genera. The pteridophyte collection is represented by three orders and includes 14 families, 25 genera, 52 species and 14 cultivars (66 taxa).The angiosperm collections have one subclass Magnoliidae, 10 superorders, 41 orders, 101 families, 386 genera, 920 species, 65 varieties, 264 cultivars (1249 taxa). This internationally unified approach to the classification of plants is an important step in strengthening the international standardization of training.
Stresses of the mechanism of rotation of the platform of the feller buncher in the processing of wood
Authors: Александров В.А. , Ржавцев А.А. 
Published: September 2020

Разработана математическая модель динамической системы: Валочно-пакетирующая машина - предмет труда - дерево . Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система уравнений решена методом Рунге-Кутта, с помощью среды программирования MathCAD. Апробация модели осуществлена на примере серийно выпускаемых валочно-пакетирующих машин ЛП-19А в режимах разгона и стопорения.
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 equation of Lagrange second number. The system of the equations is solved concerning elastic deformation of the suspension seats. Model approbation is carried out on an example of serially felling and skidding machine LP-19A.
Using the GNU Octave system to process data coming in over the network
Authors: Заяц A.М. , Хабаров С.П. 
Published: September 2020

Предложенный подход и разработанные программы на базе пакета GNU Octave обеспечивают сетевую работу практически в реальном масштабе времени по обработке данных наблюдаемого объекта, включающего в свой состав UDP сервер, который по запросу клиента может выдать ему нужную для оценки и обработки текущую информацию о состоянии переменных, характеризующих состояние этого объекта.
The proposed approach and developed programs, based on the GNU Octave package, provide network work in almost real time on processing the data of the observed object, which includes a UDP server, which, at the request of the client, can provide him with the current information needed for evaluation and processing about state variables characterizing the state of this object.
Pembelajaran Inkuiri Terbimbing Berbantuan Alat Peraga Konstanta Pegas Digital untuk Meningkatkan Keterampilan Generik Sains
Authors: Khoiri Nur , Huda Choirul , Assegaf Hadhijah 
Published: September 2020

The research purpose is explored the effect of guided inquiry learning with digital spring for science generics skills. The subject of research are 70 student in XI MIPA SMAN 11 Semarang consisting of 35 students in the experimental group and 35 students in the control group. Design study uses Quasy Experiment Design, the type to be used is Nonequivalent Control Group Design. Data collection techniques through observation and questionnaire with a Likert scale. The results of data analysis from observation sheet on average experiment class = 3,22 and the average control class = 2,93. This study uses independent sample t-test show t<sub>count</sub> &gt; t<sub>table</sub> that is 3,76 &gt; 1,99 interpreted t<sub>count </sub>&gt; t<sub>table</sub> then Ho rejected Ho and accepted Ha. Based on the result of this research, it can be concluded that guided inquiry learning digital spring constant give positive influence to science generic skill student in SMAN 11 Semarang. Students' generic science skills were better after the implementation of guided inquiry learning assisted with teaching aids.
Salmonella Infection Among Food Handlers at Canteens in a Campus
Authors: Susanna Dewi , Purwanisari Euis , Ratih Suci Puspita 
Published: September 2020

Background:

Salmonella is one of the pathogenic microorganisms that can contaminate food through cross-contamination (less hygiene of handlers and environment). In a campus, food management and food handlers have a very important role in the contamination of microorganisms, which can lead to the incidence of foodborne diseases.

Objective:
This study aimed to assess the incidence of salmonella infections among food handlers at a campus canteen in Depok City, Indonesia.

Methods:
The cross-sectional study was conducted in May-June 2017. The population of this study was all food handlers working in the canteen (N=260). The data were obtained through interviews and observation of the characteristics and behaviors of the food handlers. Blood samples were also collected from 49 food handlers (n=49).

Results:
This study revealed that 61.2% of food handlers included in the age group were not at risk, the proportion of female food-handlers was slightly more than men (51%), the majority of them were low educated (59.2%), and all respondents had never given typhoid immunization. The results of the fecal examination revealed that two food handlers had typhoid. In addition, the behavior and personal hygiene of most of the handlers are poor. Environmental factors such as canteen sanitation facilities are mostly qualified, and most of the food handlers have no history of contact with animals.

Conclusion:
There was no statistically significant relationship between characteristics, behavior, personal hygiene, sanitation facilities, and contact history with animals against pathogenic bacterial infections.
Effect of Hypnotic Group Treatment on Distress Psychopathology in Mixed-group Outpatients with Depression and Anxiety
Authors: Truzoli Roberto , Renzi Bruno , Romanò Marta , Gremizzi Ilaria , Pirola Veronica , Reed Phil 
Published: September 2020

Background:There is evidence of hypnosis being effective in reducing both emotional distress, anxiety, and depression.Hypnosis as a technique promotes enhanced mental mastery over the body. This may result in hypnosis being particularly salient in treating distress associated with somatic and psychological symptoms.Objective:This research aims at verifying the effectiveness of a group treatment, which provides for the use of hypnosis-related techniques in mixed-group outpatients with anxiety or depression.Methods:Participants. 31 outpatients (average age= 49.005; DS =12.1) including 13 with mild-moderate depression (average age= 49.17; DS=12.20) and 18 with mild-moderate anxiety (average age=48.84; DS=13.02).Procedure. The group treatment comprised 8 sessions, during which a hypnotic state was induced, aimed at generating a sensation of profound wellbeing in the participants. They could share their experience in a penultimate group session, and were provided with individualised recommendations on nutrition and lifestyle in the last individual session. Patients were prescribed to practice self-hypnosis every day at home with the support of a CD-ROM.Psychopathological symptomatology (SCL-90R), depression (BDI), and anxiety (STAI-Y1, SAS) were assessed at pre, post, and 3-month follow-up.Statistical analysis. Friedman, Kruskal-Wallis and Mann-Whitey tests were used. The Bonferroni’s correction was applied as needed. The effect size (Cohen’s d) was also measured.Results:For the total sample, for all tests, significant differences were observed in the phases. The effect size was found to vary from “small” at pre to ”medium” at post. A “large” effect size was observed when comparing pre and follow-up phases. An overall reduction in the symptoms of distress measured by the SCL-90 R – with the anxiety group showing better outcomes – alongside with an improvement in the symptoms of depression and anxiety were observed in all participants.Conclusion:The clinical impact appears to be relevant, as shown by the values for d. The treatment is cost-effective for highly prevalent disorders in outpatients. The outcomes of this study support the effectiveness of hypnotic group treatment.
Wujud Adaptasi Masyarakat Kalibiru dalam Pengembangan Ekowisata
Authors: Kaharuddin Kaharuddin 
Published: September 2020

Ecotourism development by local communities around the forest has obstacles related the differences between farming and tourism working style. The problem's related the ability of the community to adapt. This study is aimed to describe the types of obstacles, strategies and the form of adaptation of the Kalibiru community in developing ecotourism in the protected forest. Data collection uses in-depth interviews (indept interview), focused interviews, direct observation, and document review. The results showed the ability of the Kalibiru community to adapt of ecotourism. Various obstacles experienced at each stage of tourism development can be overcome through persuasive strategies. The adaptation can be seen in the changes individual behavior, the structure and rules of the HKm institution, and settings of labor and working time at the household level. Keywords. Adaptation, ecotourism, local communities