bluuebunny/crossref_metadata_2025_split huggingface dataset:
Is it possible that the structure of tropical rainforests has recovered 40 years after clear-cutting?
Authors: Forero-Peña Luz Amalia , Leiva-Rojas Edna Ivonne , Ramírez-Pisco Ramiro 
Published: February 2023

Abstract
The tropical rainforest of Bajo Calima, Buenaventura, Colombia, was known for its large biodiversity and enormous regeneration potential. During the 1970–90s, industrial use through clear-cutting gave rise to secondary forest (SF), which is now a collective property of the communities that inhabit it. The productivity of secondary forest would recover after 30 years according to the linear recovery trend, as predicted by Mazuera (1985). The purpose of conducting this research in Bajo Calima, Colombia was to quantify the productivity of SF at different ages after clear-cutting. Plots of 0.1 ha were selected after 23, 27, 31 and 35 years of SF following clear-cutting of the initial primary forest (PF). It is now managed through selective logging. Samples of equal size of PF and SF without selective logging, called mature secondary forest MSF (> 40 years), were used as controls. The productivity variables of the SF expressed as basal area, volume (Vol) and aerial biomass (AB), on average for the four ages studied was 45%, 29% and 22% compared to the productivity of the PF, and 94%, 50% and 49% with respect to the productivity of the MSF. Without the opportunity to reach maturity the trend predicted by the recovery model was not achieved and the SF showed productive characteristics far below those of the initial primary forest.
Turberaied ja nende ökonoomiline hindamine pohla kasvukohatüübi männiku näitel
Authors: Kaimre Paavo , Kängsepp Vivika 
Published: February 2023

Abstract
The article provides an overview of the experience of using shelterwood systems in Estonia and the methodological aspects of their economic assessment. The methodology is tested with calculations made on the management alternatives of pine (Pinus sylvestris L.) stand in Rhodococcum site type. Based on the Estonian forest management rules and the results of previous silvicultural studies, the management models were elaborated for different types of shelterwood harvesting. The difference model was used when predicting stand development, the actual prices of different wood assortments and the actual cost of management activities were used in calculations. The net present value of cash flows is used as a criterion, which allows comparing management periods of different lengths. Calculations were performed for three different periods: one regeneration felling cycle, two regeneration felling cycles and perpetual management cycles. The results of different types of shelterwood systems are compared with the results of clear-cutting scenarios. The calculations indicate that in the short term, the net present value of the different types of shelterwood harvesting and clear-cutting are quite similar. The results of the first cycle of regeneration felling are most affected by the costs of cultivation and tending of a plantation and young forest. In the long run, clear-cutting will have an advantage over shelterwood harvesting, as the stand regeneration period is shorter.
Järvselja metsade tormikahjustuste seire mehitamata õhusõidukitega
Authors: Kokamägi Kaupo , Künnapuu Rauno , Liba Natalja 
Published: February 2023

Abstract
This paper provides an overview of a small research project. The object of the research was a 16 km2 forested area located in the territory of Järvselja Study and Experimental Forest, Estonia, which was damaged by storms in June 2021. The aim of the study was to investigate whether it is possible and reasonable to estimate the area of storm damage using orthophotos created from photographs collected from unmanned aircraft. The surveying was carried out on July 13–15, 2021. The data was collected via unmanned aerial vehicles with RGB-cameras on board. A multi-rotor drone DJI Phantom 3 Professional and a fixed-wing unmanned aircraft eBee X were used. In total, the eBee drone was flown 11 times to obtain 11,989 photos and the DJI drone 18 times to obtain 2,471 photos. During the project, it became clear that if there are open fields available, it is more efficient to use a fixed-wing type drone for this kind of research. However, in more difficult conditions where there are no clearances suitable for take-off and landing, a multi-rotor drone, such as the DJI, can be used instead. It can be concluded from the results of the work that although it is possible to use an unmanned aircraft for aerial photography of large forested areas, it takes a considerable amount of time for both photography and post-processing. It took 96 man-hours to collect the data and four working weeks to process the data.
GAMBARAN UMUM PENANGANAN CEDERA PADA SAAT AKTIVITAS OLAHRAGA (Studi Kasus Pada Atlit Futsal Club The Boom)
Authors: Syahadatina Syahadatina 
Published: February 2023

The purpose of the study. The purpose of writing this literature review is: To find out the general description of the handling of injuries during sports activities (case studies on futsal athletes).Materials and methods. This study uses a design that is a literature review with a PICOS approach: (1) P (problem), (2) I (intervention), (3) C (control), (4 ) O (outcome) is a method of seeking clinical information and (4) Study Design.Results. The results of a literature review search through the google scholar and freefullpdf.com databases using the keywords handling sports injuries, in the search the authors found three journals and then these journals will become a literature review. Based on a literature review from three journals, it can be concluded that the general description of handling sports injuries, namely, handling at the time of injury can use the RICE and PRICES methods, but post-injury it is recommended to use warm and cold therapy, as well as therapeutic modalities. To prevent injuries to bones, joints and muscles, players need to take some precautions. These preventive measures can be done by warm up by doing stretching before starting the match. When the match is over, the athlete must cool down.Conclusions. The higher the knowledge about handling injuries that a person has, the more fatal sports injuries will be.
PENGARUH METODE LATIHAN POWER OTOT TUNGKAI TERHADAP HASIL LOMPAT JAUH GAYA JONGKOK PADA PESERTA DIDIK PUTRA KELAS XI MAN 2 KAMPAR
Authors: Hayanti Nelsi 
Published: February 2023

The purpose of the study. The purpose of this study was to determine the effect of the leg muscle power training method on the squat style long jump in male students. The training method used is an experimental research method with the research design that the author uses in this study is one group pretest and posttest..Materials and methods.. The sample in this study used purposive sampling technique. The tests and measurements of this research were carried out by male students of MAN 2 Kampar with a total sample of 16 students. To get the results of the long jump squat style, taking the pre-test and post-test scores is to do the long jump 2 times and the farthest jump range is taken as the final value.Results. The results of the study based on the statistical output of "test statistics", obtained the value of t-count (6,630) (1,753) and Asymp.Sig (2-tailed) with a value of 0.000.Conclusions. The results of the study based on the statistical output of "test statistics", obtained the value of t-count (6,630) (1,753) and Asymp.Sig (2-tailed) with a value of 0.000. Because the value of 0.000 is smaller than 0.05. This means Ha: accepted and Ho: rejected. With a percentage increase of 1.1125%. So it can be concluded that "there is a significant difference between the pre test scores and the post test scores".
Pola dan Peran Komunikasi Interpersonal antara Pelatih dengan Atlet dalam Membangun Motivasi Berprestasi Klub Woodball Kabupaten Grobogan
Authors: Dela Yufa Fatma 
Published: February 2023

A B S T R A K Tujuan Penelitian. Penelitian ini bertujuan untuk mengetauhi bagaimana pola dan peran, faktor pendukung, kendala, dan bentuk motivasi pelatih dalam komunikasi interpersonal khususnya di olahraga woodball.Metode Penelitian Jenis Penelitian ini menggunakan deskriptif kualitatif. Teknik pengumpulan data menggunakan wawancara, observasi, dan dokumentasi. Metode pengambilan sampel menggunakan purposive sampling yaitu 12 informan yang terdiri dari Pembina, Pelatih, Asisten Pelatih, 6 atlet putra dan 3 atlet putri Klub Woodball Kabupaten Grobogan. Teknik analisis data menggunakan Analysis Interactive. Keabsahan data menggunakan triangulasi sumber dan teknik melalui reduksi data, penyajian data dan verifikasi data.Hasil. penelitian menunjukkan bahwa: 1) Pola Komunikasi interpersonal yang terjalin antara pelatih dengan atlet yang sudah meraih prestasi sangat intens dibanding dengan atlet yang belum meraih prestasi. 2) Faktor pendukung komunikasi interpersonal pelatih dengan atlet yaitu sifat keterbukaan, sikap positif dan kepekaan pelatih terhadap atlet. 3) Kendala yang dialami dalam komunikasi interpersonal antara pelatih dengan atlet adalah kendala psikologi atlet, intelektual, jarak dan waktu. 4) Bentuk motivasi yang diberikan pelatih kepada atletnya dengan menceritakan pengalaman pelatih selama mengikuti pertandingan, fokus, teliti, percaya diri dalam setiap pertandingan dan menjaga kekeluargaan sehingga untuk membangun motivasi berprestasi Klub Woodball Kabupaten Grobogan.Kesimpulan Hasil Pola komunikasi interpersonal antara pelatih dengan atlet yang telah mencapai prestasi sangat intens dibandingkan dengan atlet yang belum.) Kendala yang dialami dalam komunikasi interpersonal antara pelatih dan atlet adalah kendala psikologis, intelektual, jarak, dan waktu atlet. Kata kunci: Woodball; Komunikasi Interpersonal ; Prestasi ; Pelatih ; Atlet
Morpho-agronomic variability, traits association and path analysis in Rosemary (Salvia rosmarinus Schleid.) genotypes from Ethiopia
Authors: Zigene Zewdinesh Damtew , Asfaw Bizuayehu Tesfaye , Bitima Tesfaye Disasa 
Published: February 2023

Forty-five rosemary genotypes collected from different parts of Ethiopia were evaluated for quantitative morphological traits to estimate the genetic variability, heritability and association of characters. The genotypes displayed significant differences for all of the studied traits, showing the presence of wide variability among the tested genotypes. The genotypic and phenotypic coefficients of variation were found to be medium and high for all growth and yield traits except for leaf length. Moderately high to high broad-sense heritability (0.66 -0.97) coupled with moderate to high genetic advance as a percent of the mean (10.37 -79.14) values were found for all traits. Correlation coefficient and path coefficient analysis revealed that characters vis. branch number plant-1, fresh leaf weight plant-1, dry leaf weight plant-1, fresh leaf yield ha-1, and essential oil content had a high positive direct effect and significant positive association with essential oil yield ha-1. Thus direct selection for these traits would be quite effective for essential oil yield enhancement in rosemary. In general, the studied accessions were diverse in nature and could be exploited in the conservation, breeding and commercialization of the crop.
واقع الضغوط النفسية التي تعرض لها والدي ذوي الإعاقة السمعية أثناء جائحة كورونا Covid-19 وكيفية مواجهتها من وجهة نظرهم بمنطقة مكة المكرمة
Authors: Elbadawy Aboalola Nawal Ahmad 
Published: February 2023

هدف البحث الحالي إلى الكشف عن واقع الضغوط النفسية لدى والدي المعاقين سمعيا أثناء جائحة كورنا وكيفية مواجهتها من وجهة نظرهم وفقا لمتغير: شدة الإعاقة ،المرحلة العمرية ، المستوى التعليمي لأباء المعاقين سمعيا تكونت العينة من (56) من والدي المعاقين سمعيا ، استخدمت الباحثة استبيان مستوى الضغوط النفسية وأساليب مواجهتها لدى والدي المعاقين سمعيا ، وكشفت النتائج أنه توجد فروق ذات دلالة إحصائية في استجابة والدي المعاقين سمعيا للضغوط النفسية في ظل فيروس كورونا باختلاف شدة الإعاقة لصالح والدي الأبناء ذوي الإعاقة الشديدة وفي أساليب مواجهة الضغوط لصالح والدي الأبناء ذوي الإعاقة البسيطة ،كما تبين وجود فروق ذات دلالة إحصائية في استجابة الوالدين للضغوط النفسية في ظل فيروس كورونا باختلاف المرحلة العمرية لصالح والدي المعاقين سمعيا الذين عمرهم صغير ، وفي أساليب المواجهة للضغوط الذين عمرهم أكبر سنا ، وتوجد فروق ذات دلالة إحصائية في أساليب مواجهة الضغوط النفسية في ظل فيروس كورونا باختلاف المستوى التعليمي لصالح والدي المعاقين سمعيا الذين مستواهم التعليمي أعلى
Role of D-Dimer in assessing severity, monitoring, and predicating outcome in COVID-19 pneumonia: A single center study
Authors: Patil Shital , Khule Shubhangi , Toshniwal Sham 
Published: February 2023

Objectives:
Robust data are available regarding role of D-dimer in analyzing coagulation status in pulmonary embolisms and deep vein thrombosis. As thrombogenic nature of coronavirus disease 2019 (COVID-19) has been evolved in this pandemic, we have studied its role in predicting disease severity, correlation with durations of illness and oxygenation status, and ventilatory support requirement with prediction of deep vein thrombosis and pulmonary embolism in these cases.

Materials and Methods:
Prospective, observational follow-up study, included 2000 COVID-19 cases confirmed with reverse transcription–polymerase chain reaction. All cases were assessed with high-resolution computed tomography (HRCT) thorax, oxygen saturation, inflammatory marker as D-Dimer at entry point and follow-up. Age, gender, comorbidity, and use of bilevel-positive airway pressure (BIPAP)/non-invasive ventilation (NIV) and outcome as with or without lung fibrosis were key observations. In selected cases, lower limb venous Doppler and computed tomography (CT) pulmonary angiography to rule out deep vein thrombosis or pulmonary thromboembolism. Statistical analysis is done using Chi-square test.

Results:
CT severity score at entry point with D-Dimer titer has significant correlation (P < 0.00001). Age (<50 and >50 years) and gender (male vs. female) have significant association with D-Dimer level (P < 0.00001) and (P < 0.010), respectively. D-Dimer titer has significant association with duration of illness before hospitalization (P < 0.00001). Comorbidities have significant association with D-Dimer level (P < 0.00001). D-Dimer titer has significant association with oxygen saturation (P < 0.00001). BIPAP/NIV requirement has significant association with D-Dimer level (P < 0.00001). Timing of BIPAP/NIV requirement during hospitalization has significant association with D-Dimer level (P < 0.00001). Follow-up D-Dimer titer during hospitalization, as compared normal and abnormal to entry point level has significant association with post-COVID lung fibrosis, deep vein thrombosis and pulmonary thromboembolism (P < 0.00001).

Conclusion:
D-Dimer has documented very crucial role in COVID-19 pneumonia in predicting severity of illness, ventilatory support requirement and course in critical care setting. D-Dimer follow-up titer has documented role in predicting lung fibrosis and deep vein thrombosis and pulmonary embolism. D-Dimer serial titers have documented significant role in step-up or step-down interventions in critical care setting.
UNCLE (Unconventional Learning Exercises): An Innovative approach towards active learning in Physiology for I MBBS students
Authors: Soundariya Krishnamurthy , Velusami Deepika 
Published: February 2023

Objectives:Physiology is a constantly evolving subject; hence, it demands participation from the students for effective learning. In the current trend of medical education, medical teachers need to accumulate a good knowledge of efficient “Teaching–Learning Methods,” that enable active student participation. “UNCLE– Unconventional Learning Exercises” is one such approach that facilitates learning through discussions with colleagues and helps in acquiring facts through “Participatory learning” rather than through rote memory.The present study aimed to assess the effectiveness of an active learning method “UNCLE” in learning physiology among I MBBS students.Materials and Methods:Thirty I MBBS students were exposed to “Unconventional Learning Exercises” in small groups during the regular tutorial sessions. The study tools used for “UNCLE” were worksheets with critical thinking questions and analogies shown in flash cards. Pre- and post-test scores were obtained for the evaluation of their learning. Feedback was obtained from the students to elicit their perception about the effectiveness of the new method.Results:The post-test scores (7.7 ± 1.37) were significantly greater than the pre-test scores (6.24 ± 1.57). The students reported the method to be innovative, interesting, refreshing, and more engaging. They reported that this method enhanced team-work and improved their communication skills.Conclusion:UNCLE may be considered an effective active learning strategy in physiology for I MBBS students.
THE RESULTS OF THE INTRODUCTION AND BREEDING FOR FROST RESISTANCE OF LAVENDER HYBRIDS FOR 2015–2022 YEARS
Authors: Евтюхова А.В. , Горбунов Ю.Н. , Крючкова В.А. 
Published: February 2023

Лаванда узколистная – широко распространенная в южных регионах эфиромасличная и декоративная культура. Распространение лаванды в более северные регионы ограничивается климатическими условиями неблагоприятного зимнего периода. Селекция лаванды узколистной на зимостойкость позволит расширить зону возделывания ее в первую очередь как декоративной культуры. Исследования проводили в период 2015–2022 гг в лаборатории культурных растений ГБС РАН. Зимостойкость оценивали по 6-тибалльной шкале, для анализа достоверности результатов использовали статистический анализ выборки. Наименее благоприятными для перезимовки лаванды оказались годы с минимальным снежным покровом, наиболее благоприятными – с высотой снежного покрова более 40 см. Минимальные зимние температуры не оказывали существенного влияния при наличии снежного покрова, однако значительно снижали зимостойкость в зимы без снега. По результатам наблюдений выделены гибриды с наиболее высокой зимостойкостью во все годы наблюдений, данные гибриды рекомендованы для дальнейшего использования в селекции в качестве источника зимостойкости.
Lavandula angustifolia is a widespread essential oil and ornamental culture in the southern regions. The spread of lavender to more northern regions is limited by the climatic conditions of the unfavorable winter period. The breeding of Lavandula angustifolia for frost resistance will allow expanding its cultivation zone primarily as an ornamental crop. The research was carried out in the period 2015–2022 in the laboratory of cultivated plants of the Russian Academy of Sciences. Frost resistance was assessed on a 6-point scale, statistical analysis of the sample was used to analyze the reliability of the results. The years with minimal snow cover turned out to be the least favorable for overwintering lavender, the most favorable – with a snow cover height of more than 40 cm. Minimum winter temperatures did not have a significant effect in the presence of snow cover, but significantly reduced winter hardiness in winters without snow. According to the results of observations, hybrids with the highest frost resistance were identified in all years of observation, these hybrids are recommended for further use in breeding as a source of frost resistance.
CHARACTERISTICS OF PHYTOCOENOSIS WITH CANNABIS RUDERALIS L. KHEMCHIK BASIN OF TUVA
Authors: Ондар М.М. , Намзалов Б.-Ц.Б. , Ооржак А.В. 
Published: February 2023

В данной работе раскрыты результаты исследования структуры растительности и приводится данные особенности экологии и биологии конопли сорной. Полевые работы проводились на территории Хемчикской котловины Республики Тыва. В ходе полевых исследований дана характеристика видового разнообразия растений, а также выделены ассоциации коноплевых сообществ.
In this paper, the results of the study of the structure of vegetation are disclosed and these features of the ecology and biology of weed cannabis are given. Field work was carried out on the territory of the Khemchik basin of the Republic of Tyva. In the course of field research, a characteristic of the species diversity of plants is given, and associations of hemp communities are also identified.
ANALYSIS OF THE DYNAMICS OF AGRICULTURAL LANDS OF THE REPUBLIC OF TYVA USING SATELLITE IMAGES
Authors: Самбуу А.Д. , Голубятников Л.Л. 
Published: February 2023

Проведен анализ динамики земель сельскохозяйственного назначения Республики Тыва (Россия). Для анализа пространственного распределения экосистем на территории межгорных котловин Тувы использованы спутниковые изображения с космического аппарата Landsat-8 для летнего периода 1987–2021 годов. Цифровые карты землепользования отражают современную обстановку и содержат информацию о пашне, разновозрастных залежах, пастбищах. Для определения разновозрастной залежи использовали полевые материалы, которые позволили выявить видовой состав растительности, варьирующий в зависимости от возраста залежи, что нашло отражение на космических снимках. Впервые в постсоветский период проведен комплексный анализ данных, полученных на основе рекогносцировочных и полевых работ, карты землепользования с использованием цифровых технологий, что позволил выявить в настоящее время использование более 30% пашни, разновозрастные залежи составляют 17–37% степных территорий, большая часть сельскохозяйственных земель Тувы занимают пастбища. Дешифрирование спутниковых снимков позволило составить карту-схему распределения экосистем на территории межгорных котловин. На заброшенных пашнях восстанавливается степная растительность. На многих залежных территориях разрастаются кустарники караганы Бунге. Наблюдаются процессы опустынивания и засоления на рассматриваемой территории.
The analysis of the dynamics of agricultural lands of the Republic of Tyva (Russia) is carried out. Satellite images from the Landsat-8 spacecraft for the summer period 1987–2021 were used to analyze the spatial distribution of ecosystems on the territory of intermountain basins of Tuva. Digital land use maps reflect the current situation and contain information about arable land, deposits of different ages, pastures. To determine the age of the deposit, field materials were used, which made it possible to identify the species composition of vegetation, varying depending on the age of the deposit, which was reflected in satellite images. For the first time in the post-Soviet period, a comprehensive analysis of data obtained on the basis of reconnaissance and field work, land use maps using digital technologies was carried out, which allowed us to identify the current use of more than 30% of arable land, deposits of different ages make up 17–37% of steppe territories, most of the agricultural land is pastures of Tuva. The interpretation of satellite images made it possible to draw up a map-scheme of the distribution of ecosystems on the territory of the intermountain basins. Steppe vegetation is being restored on abandoned arable lands. In many fallow areas, bushes of Сaragana Bungei grow. The processes of desertification and salinization are observed in the territory under consideration.