bluuebunny/crossref_metadata_2025 huggingface dataset:
Studying Morphological Characteristics and Sowing Qualities of Seeds of Species of the Genus Larix Mill. in the Conditions of Introduction
Authors:   Mytischi Branch of Bauman Moscow State Technical University, Bryntsev Vladimir A. ,   Main Botanical Garden named after N.V. Tsitsin of the Russian Academy of Sciences, Lavrenov Maxim A. ,   Mytischi Branch of Bauman Moscow State Technical University, Kozhenkova Anna A. ,   Main Botanical Garden named after N.V. Tsitsin of the Russian Academy of Sciences
Published: April 2022

The paper presents the results of studying morphological characteristics and sowing qualities of seeds of larch species introduced to the center of European Russia (Larix sibirica Ledeb., L. sukaczewii Dyl., L. decidua Mill., L. marschlinsii Coaz, L. olgensis A. Henry, L. principis-rupprechtii Mayr, L. kaempferi (Lamb.) Carriere, L. laricina (Du Roi) K. Koch). The research was carried out in Moscow (Main Botanical Garden of the Russian Academy of Sciences) and the Moscow region (Ivanteevsky Dendrological Garden, Yegoryevsky phosphorite deposit). This topic is urgent since determination of seed germination and viability is essential for introduction, whereas there are no recommendations for American larch and Prince Rupprecht’s larch in the State Standards (GOST) for determination of sowing qualities and quality class of seeds. The data on the variability of morphological characteristics of seeds of different larch species presented in the paper allow revealing their biological features under introduction conditions, which can be the basis for expanding the use of the studied plants in the center of European Russia. The individual variability of seed length and width, the relationship of these characteristics, as well as germination energy, germination, viability, and seed quality class were considered. Olga Bay larch has substandard seeds. Seeds of other larch species (Siberian, Sukachev’s, European, Margilind, Prince Rupprecht’s, Japanese and American larches) belong to the 2nd and 3rd quality classes. It allows recommending these species for sowing. Siberian larch growing on the Yegoryevsky phosphorite deposit showed a decrease in the sowing qualities of seeds (compared to the species from the Main Botanical Garden of the Russian Academy of Sciences) and the absence of relationship of seed length and width (compared to other objects of the research). Correlation analysis showed differences in linear and curvilinear relationships of seed length and width in Siberian and Sukachev’s larches, as well as in Margilind larch and its parental species (European and Japanese larches).
Increasing the Informativity of Multispectral Satellite Images Using Texture Analysis Data
Authors:   Moscow Institute of Physics and Technology, Zotov Sergey A. , Dmitriev Egor V. ,   Moscow Institute of Physics and Technology; Marchuk Institute of Numerical Mathematics RAS, Melnik Petr G. ,   Mytischi Branch of Bauman Moscow State Technical University; Institute of Fоrеst Science, Russian Academy of Sciences, Kondranin Timofey V. ,   Moscow Institute of Physics and Technology
Published: April 2022

The article considers the problem of incresing the informativity of multispectral images of medium (10–30 m) and high (1–4 m) spatial resolution obtained from foreign and national satellite remote sensing systems by involving additional textural information from panchromatic satellite images of very high spatial resolution (≲(1–0.4) m). The images of test sites on the territory of Savvat’yevo forestry (Tver region) from Landsat 8, Sentinel 2 and WorldView 2 satellites equipped with multispectral instruments were an object of this research. Geo-referenced ground survey data were used to validate the calculation results. We used the values of the spectral reflectance in the visible and near-infrared channels normalized to the appropriate integral characteristic as spectral features. Statistical characteristics were calculated in order to extract texture features based on the distribution of the co-occurrence of gray levels (Haralick texture features) within a moving window running the image with a given spatial step. A correlation analysis of textural features was carried out considering changes in distance and angle of adjacency. It was shown that for the selected leading features (autocorrelation, asymmetry, contrast and correlation) the first three can be used with an arbitrary direction of adjacency, while the latter needs to be considered in two different directions. Also we have found that all the considered classification algorithms provide a significant increase of accuracy when both spectral and textural features are used, in comparison with the traditional spectral classification. This result was shown for all images of test sites obtained by different satellites. It is possible to make a preliminary conclusion that the proposed integrated approach of thematic processing can improve the quality of object recognition in the case of using images of both medium and high spatial resolution. Estimates obtained during the thematic mapping of dominant and subdominant forest species showed close classification accuracies for different initial multispectral images (with a scatter of no more than 5 % around the average value of 85 %). Mostly this is due to the presence of specific errors in the ground-based forest inventory data and indicates the necessity of their updating with the use of satellite remote sensing images.
Gimdos rando po cezario pjūvio operacijos storio pokyčiai nėštumo metu – perspektyvusis tyrimas
Authors: Juotkutė Mantilė , Savukynė Eglė
Published: April 2022

Tikslas ir uždaviniai: Apibūdinti gimdos rando po cezario pjūvio operacijos (CPO) storio pokyčius nėštumo laikotarpiais ir nustatyti kaip rando storis pirmuoju nėštumo trečdaliu gali turėti įtakos viso apatinio gimdos segmento (AGS) bei raumeninio sluoksnio storiui antruoju ir trečiuoju nėštumo trečdaliais.

Tyrimo metodika: Atliktas perspektyvusis tyrimas, kurio metu tirtos pacientės turinčios gimdos randą po vienos ar kelių CPO. Gimdos randui tirti naudotas transvaginalinis ultragarsinis tyrimas (TV UG). 11 – 13 sav. UG prenatalinės patikros metu išmatuotas gimdos randas. Pacientės pagal gimdos rando formą suskirstytos į dvi grupes – turinčios gimdos rando nišą ir tos, kurioms randas sugijęs be nišos. Pagal standartizuotą UG tyrimo metodiką visoms tiriamosioms atliktas viso AGS ir AGS raumens storio matavimas 18 – 20 bei 32 – 35 nėštumo savaitę. Statistinei duomenų analizei naudotas Friedmano ANOVA testas vertinant rando storio pokyčius nėštumo metu ir Mann-Whitney testas lyginant rando pokyčius tarp tiriamųjų grupių su ar be gimdos rando nišos.

Rezultatai: Iš viso į tyrimą įtrauktos 122 tiriamosios. Gimdos rando niša buvo stebima 40,2 % atvejų. Nėštumo eigoje gimdos rando storis reikšmingai plonėjo (p = 0,001). Vidutinis raumens sluoksnio storio plonėjimas tarp pirmojo ir antrojo nėštumo trečdalio buvo 8,9 mm (p<0,001). CPO rando raumens sluoksnio storis pirmuoju nėštumo trečdaliu buvo reikšmingai plonesnis tarp tiriamųjų, turinčių rando nišą lyginant su grupe be rando nišos (p<0,001). AGS raumens storis (p = 0,019) kaip ir visas AGS storis (p = 0,022), reikšmingai suplonėjo tarp antrojo ir trečiojo nėštumo trečdalio tiriamųjų su rando niša grupėje lyginant su grupe be rando nišos.

Išvados: Nustatyta, kad nėštumo metu CPO rando storis kinta. Gimdos rando niša turi reikšmingos įtakos žymesniam gimdos raumeninio sluoksnio suplonėjimui rando srityje tarp antrojo ir trečiojo nėštumo trečdalio.
Veiksniai, turintys įtakos svorio prieaugiui nėštumo laikotarpiu nėščiųjų diabetu sergančioms moterims. Literatūros apžvalga
Authors: Kalakauskaitė Laura , Januškevičiūtė Edvina , Visockienė Žydrūnė
Published: April 2022

Įvadas. Nėščiųjų diabetas (ND) – tai angliavandenių apykaitos sutrikimas, diagnozuotas nėštumo metu. ND ir perteklinis svorio prieaugis (PSP) sukelia trumpalaikių ir ilgalaikių neigiamų pasekmių motinai ir naujagimiui. Šiuo metu taikomos bendros rekomendacijos svorio prieaugiui nėštumo metu ND sergančiosioms, o rizikos veiksniai PSP nėra vertinami.

Tikslas. Nustatyti pagrindinius rizikos veiksnius (RV) pertekliniam svorio prieaugiui nėštumo metu moterims, sergančioms ND.

Metodai. Į literatūros apžvalgą pasirinkti tyrimai, atitikę įtraukimo kriterijus. Atrinkti tyrimai 2010-2021 m. publikuoti PubMed ir Web of Science duomenų bazėse. Vertinti, kokie RV yra statistiškai reikšmingi PSP nėštumo metu.

Rezultatai. Iš 1457 publikacijų atrinkti 29 tyrimai, analizuojantys 34576 moterų, sergančių ND, duomenis. Iš jų 17 tyrimų nurodė svorio prieaugio pasiskirstymą pagal Medicinos instituto (MI) rekomendacijas: 32,14 proc. moterų priaugo nepakankamai, 33,17 proc. - adekvačiai, 34,63 proc. - per daug svorio. Nustatyti RV PSP: 1) kūno masės indeksas (KMI) iki nėštumo (IN) >25kg/m2 didina riziką 2,48-5,060 karto (3 tyrimai, n=3780), tačiau dalis autorių stebi neigiamą KMI IN ir PSP ryšį (2 tyrimai, n=933, r nuo -0,283 iki -0,49, P<0,01); 2) didesnė alkio glikemija gliukozės tolerancijos mėginio (GTM) metu (6 tyrimai, n=4760); 3) mažesnė GTM glikemija po 1 val. (3 tyrimai, n=3560); 4) didesnis glikuotas hemoglobinas (4 tyrimai, n=3937); 5) insulino terapija arba gydymas gliburidu ar metforminu, lyginant su dieta (p<0,001, p=0,003, p<0,02, p=0,015, p=0,001, 5 tyrimai, n=4993); 6) ND diagnozė po 20 ir 24 nėštumo savaitės (2 tyrimai, n=1765); 7) ND diagnozė iki 12 nėštumo savaitės lėmė mažesnį svorio prieaugį (1 tyrimas, n=4808).

Išvados. Duomenys apie rizikos veiksnių įtaką PSP nėštumo metu ND sergančiosioms nėra vienalyčiai. Daugelyje tyrimų didesnis KMI IN, glikemija GTM metu, insulino terapija ir vėlyva ND diagnostika buvo reikšmingi veiksniai. Rizikos veiksnių vertinimas naudingas siekiant pritaikyti profilaktikos priemones ir išvengti PSP.
Wasserstoff als Energieversorgung in mobilen Anwendungen am Beispiel eines Power-Tools/Hydrogen as Energy Supply for Mobile Applications Using the Example of a Power Tool
Authors: Zimprich Sebastian , Matthiesen Sven , Gwosch Thomas
Published: April 2022

Inhalt: Die Relevanz von Wasserstoff wird bis zum Jahre 2050 stetig steigen. Aktuell ist jedoch unbekannt, in welchen mobilen Kleinanwendungen sich Wasserstoff zur Energieversorgung eignet und welche spezifischen Herausforderungen dabei auftreten. Daher wird am Beispiel eines Bohrschraubers untersucht, welche Antriebskonzepte und Betriebsstrategien erforderlich sind, um in mobilen Kleinanwendungen Wasserstoff als Energieversorgung zu nutzen. Mit einem testgetriebenen Ansatz und der Entwicklung eines Funktionsmusters wurde ein Antriebskonzept und eine passende Betriebsstrategie ermittelt. Die entwicklungsbegleitende Validierung erfolgte mit dem X-in-the-Loop-Ansatz und zeigte eine besondere Relevanz des Wärmehaushalts für das Antriebskonzept und die Betriebsstrategie.
Function-oriented approach to mining enterprise automation
Authors:   Peter the Great St. Petersburg Polytechnic University, Ilin Igor V. , Levina Anastasia I. ,   Peter the Great St. Petersburg Polytechnic University, Kalyazina Sofia E. ,   Peter the Great St. Petersburg Polytechnic University
Published: April 2022

Nowadays a production enterprise is inconceivable without the automation of all its processes – technological, production, and managerial. The efficiency of an enterprise largely depends on high-quality data processing within a single information space. The introduction of an integrated automated management system for an industrial enterprise, consistent with the business model, will eliminate many of the problems arising during creation, integration and development of automated systems, will create an effective enterprise management system and will reduce future costs of production modernization. Current trends of digital transformation increase the demand for an integrated business management system model, that would include a model of an integrated information management system as an integral part of it. The study aims to develop a reference functional model of mining enterprises, including a comprehensive vision of business, production and technological processes and their IT support. The model proposed is based on the analysis of existing international industry approaches to automation, as well as the experience and best practices of automation of mining enterprises. The methodological foundations of the research include enterprise architecture approach (including the concept of service-oriented architecture) and authors' function-oriented approach for engineering the IT architecture. The article describes a reference functional model of a mining enterprise, on the basis of which the structure of the mining enterprise IT-architecture functional structure is determined. The function-oriented approach for engineering IT-architecture as a reflection of the business functional structure is a good example of the symmetry phenomena in enterprise management. Further research will be devoted to the issues of designing an information exchange model and a data architecture model for the mining value chain and its individual parts in interconnection, as well as reflecting end-to-end processes of mining enterprises in the IT architecture based on the developed model for determining the boundaries of functional blocks of information systems
Risiko Penyakit Jantung Pada Keluarga Penderita Di Poli Jantung RSUD Dokter Slamet Garut Tahun 2017
Authors: Rosita Siti , Kurniawan Titis , Pebrianti Sandra
Published: April 2022

Coronary Cardiovascular Disease is still one of the major health problems in the world. Prevention can be done with the introduction of risk factors and early detection. Screening is an effective way to identify risk factors for cardiovascular disease in the first stage, furthermore, the offspring's' (siblings) sufferers of cardiovascular disease is one of the risk factors that need to be noticed. This study is aimed to identify the risk level of cardiovascular disease on the patients’ family undergoing outpatient in polyclinic cardiology dr. SlametGarut Hospital.

This quantitative descriptive study involves the family (siblings / descendants) of coronary cardiovascular disease patients, with a sample of 89 people, the sampling technique used is accidental sampling. The instrument in this study utilized Cardiovascular Jakarta Score consists of 7 questions divided into ≥5 high, 2-4 medium, and -7 to 1 light. Data were analyzed by frequency distribution and final result.

The result showed that almost half of respondents (43.8%) are in medium risk state and few of respondents (29.2%) are in high risk state. This indicated that the proportion of respondents with higher risk is more found in male respondents, aged 60-64 years, has active smoking habit, IMT 26.00-29.99, has no history of DM, TD category of hypertension level 1 and has the habit of less activity.

It can be concluded that most families are at risk for coronary cardiovascular disease ≥10% within the next 10 years. Thus it becomes important that families maintain a healthy lifestyle and it is suggested that the hospital develop the program as an effort to raise awareness related to the risk of coronary cardiovascular disease and the importance of prevention efforts towards people who have families with cardiovascular disease.
Pengaruh Karakteristik Ibu Terhadap Perkembangan Anak di Posyandu Mawar II Desa Pasir Gombong Kab. Bekasi Tahun 2018
Authors: Anggraini Temmy Lanovia , Handajany Sofie
Published: April 2022

Child development is a matter that requires special attention. Assessment of children's development is important to do early detection of developmental disorders. This research was conducted with the aim to determine the effect of maternal characteristics on the development of children. Variable characteristics of mothers include age, education and occupation. Assessment of children's development using the Pre Development Screening Questionnaire (PDSQ). Aspects of development assessed include gross motor, fine motor, socialization and independence, speech and language. This study is a descriptive analytic study using a cross sectional approach. The study was conducted in August 2018 at the posyandu Mawar II in the village of Pasir Gombong, Bekasi Regency. The sampling technique uses purposive sampling. The research subjects were 44 children with a range of 0 - 72 months of age. Data analysis using Fisher Exact test. The results of the development assessment found 40 respondents (90.9%) had a level of development in accordance with their age and as many as 4 respondents (9.1%) had a doubtful level of development. From the Fisher Exact test results for each of the three variables each obtained p = 1,000 (> 0.05) so that it can be concluded there is no relationship between maternal age and child development, there is no relationship between maternal education and child development and there is no relationship between maternal work with child development.
Meningkatkan Hasil Belajar Keperawatan Dasar Melalui Metode Pembelajaran Problem Base Learning (PBL) Mahasiswa Tingkat I Akper Bhakti Husada Cikarang Tahun 2018/2019
Authors: Marlina Lina , Nurdini Rini
Published: April 2022

Background: Learning outcomes for basic nursing courses for two years at Akper Bhakti HusadaCikarang still do not meet the minimum graduation limit for TA. 2016/2017 as many as 13% of thetotal 59 students and for TA. 2017/2018 as many as 23% of 70 students, while the minimum targetfor graduation is 80%. So we need an effective learning method that can improve student learningoutcomes in basic nursing courses. Problem Based Learning (PBL) we can say as a learning modelthat prepares students to think critically and analytically, and seeks and uses appropriate learningresources to deal with an existing problem. The tutorial (tutoring) is academic assistance or tutoringby tutor to students (tutee) to help smooth the independent learning process of individual students orgroups related to teaching materialMethod: This research is a classroom action research in the form of a descriptive level for first-levelstudents for basic nursing courses.Results: The average value of the process scores for students scenario 1, 2 and 3 have exceeded thevalue of the graduation limit or expected value. Pre-test scores for each scenario have not reachedthe expected value, still below 68. The average post-test scores of students have been more than theexpected value.Conclusion: Tutorial methods can improve their ability to create alternatives and solve problems. Itis recommended that the tutorial method can be applied to other subjects besides basic nursing. Theselection of respondents / students studied must be chosen that has a level of intelligence or abilitythat is not much different.
Faktor-Faktor Yang Berhubungan Dengan Siklus Menstruasi Pada Remaja Putri Kelas XI di SMAN 3 Cikarang Utara Kabupaten Bekasi Tahun 2019
Authors: Ginting Ade Krisna , Prastiwi Ikha , Iskandar Marini
Published: April 2022

Background :Based on Yudhya Erry's research in 2016 in Jakarta, the majority of respondentsfound that 68.7% of respondents experienced abnormal menstrual cycles with thin nutritionalstatus and irregular menstrual cycles. Factors affecting the menstrual cycle include menarche,being overweight and underweight and excessive physical activity. The existence of hormonaldisorders in women namely progesterone, estrogen, LH, and FSH are related to nutritionalstatus. Nutritional status has an important role in the menstrual cycle.Method :This study uses analytical research methods with cross-sectional design, with thevariables studied consist of the dependent variable, namely: the menstrual cycle and independent

variables, namely: Menarche, BMI and physical activity. The sampling technique is totalsampling. With a population of 97 XI class XI students in SMAN 3 Cikarang Utara.Result: Based on the results of the Chi Square analysis p value = 0.003, because p <0.05, it canbe concluded that there is a relationship between BMI and the menstrual cycle. Odds Ratio (OR)= 0.251. There is no relationship between menarche and physical activity with the cycle ofteenage girls.It is recommended that young women maintain their nutritional adequacy and schoolsshould improve education about reproductive health issues, especially for young women,especially related to nutritional needs of adolescents by holding counseling and putting upposters, leaflets, and bulletin on the importance of maintaining adequate nutrition in adolescentsand their impact on reproductive health .
Faktor-Faktor Yang Berhubungan Dengan Pemberian Asi Eksklusif Di Posyandu Flamboyan XVII Dan XVIII Desa Telajung Kecamatan Cikarang Barat Kabupaten Bekasi Tahun 2017
Authors: Alindawati Rifka , Susanti Lia , Pani Praditia Rika
Published: April 2022

Berdasarkan data Dinas Kesehatan Jawa Barat tahun 2013, cakupan ASI eksklusif pada bayi sekitar 30,2% dan berdasarkan data Dinas Kesehatan Kabupaten Bekasi tahun 2012, cakupan ASI eksklusif di Kabupaten Bekasi masih rendah yaitu sebesar 29,77%. Variabel dependen yaitu pemberian ASI eksklusif, dan variable independen yaitu pendidikan, pekerjaan, pengetahuan, promosi susu formula dan dukungan suami. Desain penelitian ini analitik cross sectional. Jumlah populasi sebesar 87 orang. Variabel dependen yaitu pemberian ASI eksklusif dan variabel independen yaitu pengetahuan, pekerjaan, pendidikan, promosi susu formula dan dukungan suami. Teknik sampel yang digunakan Total Sampling. Dari 87 responden yang diteliti terdapat 44 orang (50,6%) yang tidak ASI eksklusif dan 43 orang (49,4%) yang ASI eksklusif. Berdasarkan hasil uji statistik chi-square diketahui nilai p = 0,042 (<0,05) sehingga dapat dinyatakan ada hubungan antara pengetahuan dengan pemberian ASI eksklusif. Berdasarkan hasil uji statistik chi-square diketahui nilai p = 0,041 (<0,05) ada hubungan antara pekerjaan dengan Pemberian ASI eksklusif. Berdasarkan hasil uji statistik chi-square diketahui nilai p = 0,025 (<0,05) ada hubungan antara pendidikan dengan pemberian ASI eksklusif. Berdasarkan hasil uji statistik chi-square diketahui nilai p = 0,004 (<0,05) ada hubungan antara promosi susu formula dengan pemberian ASI eksklusif. Berdasarkan hasil uji statistik chi-square diketahui nilai p = 0,006 (<0,05) ada hubungan antara dukungan suami dengan pemberian ASI eksklusif. Dari 5 variabel, diantaranya 5 variabel yang ada pengaruh yaitu pengetahuan, pekerjaan, pendidikan, promosi susu formula dan dukungan suami.
Determination of probiotic and some technological properties of lactic acid bacteria isolated from cheeses sold in the Kilis region, Turkey
Authors: Sağlam Hidayet , Uçan Türkmen Filiz
Published: April 2022

Aims: The purpose of this study is to evaluate technological properties and probiotics potential of lactic acid bacteria (LAB) isolated from 15 raw milk Turkish Beyaz fresh cheese made in the Kilis region, Turkey.Methods and Results: 287 colonies from 15 cheese samples were selected and 91 of them were analyzed as Gram-positive and catalase-negative. 19 strains of 91 colonies were accepted as potential probiotics since they stayed alive in pH 3.5 and 0.3% bile salt. They were identified as Lactobacillus sp. (11 strains), Leuconostoc sp. (3 strains), Streptococcus sp. (2 strains), Lactococcus sp. (2 strains), and Enterococcus sp. (1 strain) by biochemical tests and API test kit. It was determined that 19 strains with high acidification rate, 15 strains demonstrated weak proteolytic activity, 3 ones moderate, and 1 strong proteolytic activity. It was determined that 1 of the strains were resistant to chloramphenicol, 2 to tetracycline, and 6 to vancomycin. No strains resistant to penicillin and erythromycin could be detected. In the artificial gastric juice resistance test, although no viability was detected at pH 2.0. But it was determined that the viability values varied between 89.49-111.79% at pH 3.0. Also, these strains showed growth at bile salt. According to plasmid profiles of strains, 13 of 19 potential probiotic strains were determined to have plasmid DNA in the range of 1-5, while other strains were determined to not have plasmid DNA. The molecular sizes of the plasmid DNA of the isolated strains ranged from 2-16 kb.Conclusions: In the research, it was determined that LABs isolated from Turkish white fresh cheese produced in Kilis have probiotic potential and can be used as starters in various fermented foods.Significance and Impact of the Study: According to the results obtained, it was concluded that some strains can be used as probiotic starter culture in cheese production and others can be used for ripening of cheese.
Stability Assessment of Landslide Occurred in India and Its Remedies: A Case Study
Authors: Ravendra Prasad Rajak  , Meen-Wah Gui
Published: April 2022

Landslide is a geological process on the surface of the earth, the downward movement of soil mass or rock on the slope region is called a landslide. Natural disaster has always been an important topic of discussion, currently India and many other countries are facing this sort of problem. Through the past study it’s seen that there were thousands of landslides occurred in India due to typhoon and heavy rainfall; Kethikal landslide near to Mangalore in India is one of the hazard occurred in 1998 due to heavy rainfall. The total height of the slope is 67 meter and its length is 140.5 meter. Due to this disaster, traffic has been diverted for few days and some houses in the top of the mountain were damaged. The analysis of this slope failure has been done in Plaxis 2D program and found that the cause of failure of the slope is due to the rise of high porefluid pressure and by the field observation found the same cause. In Plaxis 2D, a number of numerical analyses has been done with soil nailing solution and found that the factor of safety of this solution is satisfactory. Soil nailing has been found to be one of the solutions for the treatment of the unstable slope.
Testicular Damage and Abnormal Sperm Characteristic due to Chronic Hyperglycemia Exposure Restored by Polyphenol Rich Extract of Hibiscus Sabdariffa Linn
Authors: Rafidah Mohamed Kasim  , Fatin Farhana Jubaidi  , Izatus Shima Taib  , Siti Balkis Budin
Published: April 2022

Roselle (Hibiscus sabdariffa Linn.) polyphenol-rich extract (HPE) has been previously reported to protect the body system against oxidative stress-induced damage. However, it is not known whether HPE could restore reproductive damage due to exposure to chronic hyperglycaemia conditions. In this study, we tested the hypothesis of whether HPE is able to ameliorate deterioration of sperm, testicular oxidative damage due to chronic diabetic condition in diabetic rats. Diabetes was induced in Sprague-Dawley rats and left untreated for four weeks duration. The treatment of HPE (100 mg/kg body weight) and metformin (100 mg/kg body weight) were only initiated at week five, daily for four weeks duration. The non-diabetic and diabetic untreated groups were left without treatment for the whole duration of the study. Analysis of sperm showed a positive trend of sperm characteristics improvement following HPE treatment. It is evident that oxidative damage in epididymal sperm that have left the testes to undergo maturation was not reverted. There was also a reduction in malondialdehyde (MDA) and advanced oxidation protein product (AOPP) level of testes in HPE-treated diabetic rats as compared to the untreated diabetic group was observed. Similarly, HPE-treated diabetic group also displayed trends of a higher antioxidant level (superoxide dismutase and glutathione). Histological observation displayed active spermatogenesis and restoration of spermatogenic cells in lumens of seminiferous tubules following HPE treatment. Conclusively, testicular damage and abnormal sperm characteristic of diabetic rats were restored by HPE treatment and these findings exhibited promising results on the potential role of HPE as a nutraceutical product for diabetes conditions.
HUBUNGAN AKTIVITAS FISIK DENGAN FUNGSI KOGNITIF LANSIA
Authors: Cahyaningrum Etika Dewi
Published: April 2022

Young elderly dominate the prevalence of the elderly in Indonesia with the age of 60-69 at 63.39%, then the middle elderly with the age of 70-79 years by 27.92% and the elderly aged 80 years and over by 8.69%. Functional changes in the elderly are decreased cognitive function, resulting in changes in the structure of brain function. This will be seen in the elderly who have impaired orientation, attention, concentration, thinking, remembering, and language. The purpose of this study was to determine the relationship between physical activity and cognitive function of the elderly. This research uses correlational analytic method and cross sectional approach. The instrument used was a questionnaire and the cognitive function of the elderly was measured by the Mini Mental State Examination (MMSE). The sampling technique used purposive sampling with 92 elderly respondents. Statistical analysis used is frequency distribution and chi-square. This research shows that elderly with light physical activity mostly have cognitive impairment, that is 39 people (42.4%). The results of the analysis showed that the p-value was 0.00 < 0.05 so that there was a relationship between physical activity and cognitive function of the elderly. Physical activity reduces the incidence of various vascular disease factors such as hypertension, obesity, and diabetes. Cardiovascular function can be improved with intense physical activity. As blood flow increases, oxygen transport to the brain increases. Cognitive function of the elderly can be maintained with regular physical activity so that it remains at a good level.
Semidetached Mass-transfer Massive Binaries in the Nearby Galaxy M31
Authors: Li F.-X. , Qian S.-B. , Liao W.-P.
Published: April 2022

Semidetached binaries provide a valuable test of the evolutionary models of interacting binaries where the mass is transferring from one component to the other, and the evolutions of both components will be changed. Many results of semidetached binaries have been obtained in the Milky Way, while there are few studies in the Andromeda galaxy (M31). By analyzing the light curves of 12 eclipsing binaries observed by Vilardell et al., we determined the fundamental parameters of these systems using the Wilson and Devinney method. It is discovered that they are semidetached binaries where the less massive components have filled their Roche lobes, while the more massive ones are detached from the lobes. We calculated their times of light minimum for the first time. The primary stars in those semidetached binaries have different mass ratios and fill-out factors and they are good sources to investigate the binary evolution in M31. It is found that the mass ratio is correlated with the fill-out factor of the primary. Systems with higher mass ratios tend to have lower fill-out factors. These results can be explained that the mass transfer from the less massive component to the more massive one. Moreover, the photometric solutions reveal that the secondary components are more evolved than the primary ones indicating that they are formed from originally detached binary systems via a case A mass transfer. These binaries have experienced the mass-reverse evolution and are at the late stage of a case A evolution in the nearby galaxy M31.
Isochronic Evolution and the Radioactive Decay of r-process Nuclei
Authors: Sprouse T. M. , Misch G. Wendell , Mumpower M. R.
Published: April 2022

We report on the creation and application of a novel decay network that uses the latest data from experiment and evaluation. We use the network to simulate the late-time phase of the rapid neutron capture (r) process. In this epoch, the bulk of nuclear reactions, such as radiative capture, have ceased, and nuclear decays are the dominant transmutation channels. We find that the decay from short-lived to long-lived species naturally leads to an isochronic evolution in which nuclei with similar half-lives are populated at the same time. We consider random perturbations along each isobaric chain to initial solar-like r-process compositions to demonstrate the isochronic nature of the late-time phase of the r-process. Our analysis shows that detailed knowledge of the final isotopic composition allows for the prediction of late-time evolution with a high degree of confidence despite uncertainties that exist in astrophysical conditions and the nuclear physics properties of the most neutron-rich nuclei. We provide the time-dependent nuclear composition in the Appendix as supplemental material.
CLEAR: Paschen-β Star Formation Rates and Dust Attenuation of Low-redshift Galaxies
Authors: Cleri Nikko J. , Trump Jonathan R. , Backhaus Bren E. , Momcheva Ivelina , Papovich Casey , Simons Raymond , Weiner Benjamin , Estrada-Carpenter Vicente , Finkelstein Steven L. , Giavalisco Mauro , Ji Zhiyuan , Jung Intae , Matharu Jasleen , Martinez Felix , Sturm Megan R.
Published: April 2022

We use Paschen-β (Paβ; 1282 nm) observations from the Hubble Space Telescope G141 grism to study the star formation and dust-attenuation properties of a sample of 29 low-redshift (z < 0.287) galaxies in the CANDELS Lyα Emission at Reionization survey. We first compare the nebular attenuation from Paβ/Hα with the stellar attenuation inferred from the spectral energy distribution, finding that the galaxies in our sample are consistent with an average ratio of the continuum attenuation to the nebular gas of 0.44, but with a large amount of excess scatter beyond the observational uncertainties. Much of this scatter is linked to a large variation between the nebular dust attenuation as measured by (space-based) Paβ to (ground-based) Hα to that from (ground-based) Hα/Hβ. This implies there are important differences between attenuation measured from grism-based/wide-aperture Paβ fluxes and the ground-based/slit-measured Balmer decrement. We next compare star formation rates (SFRs) from Paβ to those from dust-corrected UV. We perform a survival analysis to infer a census of Paβ emission implied by both detections and nondetections. We find evidence that galaxies with lower stellar mass have more scatter in their ratio of Paβ to attenuation-corrected UV SFRs. When considering our Paβ detection limits, this observation supports the idea that lower-mass galaxies experience “burstier” star formation histories. Together, these results show that Paβ is a valuable tracer of a galaxy’s SFR, probing different timescales of star formation and potentially revealing star formation that is otherwise missed by UV and optical tracers.
Test Particle Energization of Heavy Ions in Magnetohydrodynamic Turbulence
Authors: Pugliese F. , Dmitruk P.
Published: April 2022

In the present work, we study the energization and displacement of heavy ions through the use of test particles interacting with the electromagnetic fields of magnetohydrodynamic (MHD) turbulence. These fields are obtained from pseudospectral direct numerical solutions of the compressible three-dimensional MHD equations with a strong background magnetic field. We find particle energization to be predominantly perpendicular as the ions become heavier (lower charge-to-mass ratio) and that high displacement is detrimental for perpendicular energization. On the other hand, perpendicular displacement is unaffected by the charge-to-mass ratio, which we explain with a simple guide center model. Using Voronoi tessellation along with this model, we analyze preferential concentration and find that particles behave as tracers in the perpendicular plane, clustering in regions with ∇⊥ ·
u

⊥ < 0. These regions also have (∇ ×
E
)
z
< 0, which is optimal for perpendicular energization, thus providing a mechanism to understand precedent results.
TESS Transit Timing of Hundreds of Hot Jupiters
Authors: Ivshina Ekaterina S. , Winn Joshua N.
Published: April 2022

We provide a database of transit times and updated ephemerides for 382 planets based on data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported transit times, which were scraped from the literature in a semiautomated fashion. In total, our database contains 8667 transit-timing measurements for 382 systems. About 240 planets in the catalog are hot Jupiters (i.e., planets with mass >0.3 M
Jup and period <10 days) that have been observed by TESS. The new ephemerides are useful for scheduling follow-up observations and searching for long-term period changes. WASP-12 remains the only system for which a period change is securely detected. We remark on other cases of interest, such as a few systems with suggestive (but not yet convincing) evidence for period changes, and the detection of a second transiting planet in the NGTS-11 system. The compilation of light curves, transit times, ephemerides, and timing residuals are made available online, along with the Python code that generated them (visit https://transit-timing.github.io).
Optical Properties of Cyanoacetylene Ices in the Far- to Near-infrared with Direct Relevance to Titan's Stratospheric Ice Clouds
Authors: Ugelow Melissa S. , Anderson Carrie M.
Published: April 2022

Cyanoacetylene (HC3N) ice has been observed in Titan’s stratosphere by both Voyager 1's InfraRed Interferometer Spectrometer (IRIS) and Cassini's Composite InfraRed Spectrometer (CIRS), and it is likely prevalent in other objects in our solar system and exoplanetary systems as well. While previous experimental studies targeting Titan’s stratospheric clouds have determined the optical properties of HC3N ice in the infrared (IR) spectral range, those thin ice films were formed by annealing processes, which contradicts the formation mechanism of Titan’s stratospheric ice clouds. As a result, optical constants of HC3N ices, experimentally created in a similar manner to the way they are formed in Titan’s stratosphere, are crucial. Here we experimentally measured absorbance spectra of HC3N thin ice films from the near- to far-IR spectral region (50–8000 cm−1; 200–1.25 μm) formed via direct vapor deposition at 30, 50, 70, 90, 110, and 113 K. The corresponding optical constants at all temperatures were also computed, resulting in the largest continuous IR spectral range available for HC3N ice. New tentative peak assignments for spectral features in the near-IR are also reported, thereby further enhancing the inventory of optical constants available for HC3N ice spanning the near- to far-IR spectral range.
Are the neglected tropical diseases under control in the tri-border region between Brazil, Argentina, and Paraguay?
Authors: Mendes Oliveira Filipa , Arcêncio Ricardo , Moraes Arcoverde Marcos Augusto , Fronteira Inês
Published: April 2022

Introduction: Implementation of prevention and control measures for communicable diseases in border regions can be challenging and lead to inefficient attempts to control them. We describe evidences on the strengths, weaknesses, opportunities and challenges regarding implementation of health interventions for control, prevention and treatment of selected neglected tropical diseases (NTD), a group of transmissible diseases typically prevalent in tropical countries and vulnerable populations, in the tri-border between Brazil, Argentina, and Paraguay.

Methodology: A systematic literature review of observational and experimental studies was conducted, using PubMed and Bireme databases. Eligibility criteria were location (tri-border area) and subject (health interventions).

Results: Of a total of 595 references identified, 34 studies were included (18 pertaining to leishmaniasis, 11 to dengue, 2 to leprosy, 2 to soil-transmitted helminthiases and 1 to Chagas’ disease), with an inclusion rate of 6.4%. The main strengths were the similarity of health interventions between countries and easiness of mobility and communication flows. The main weaknesses were access to rural areas and discrepancies in the number of studies between countries. As for opportunities, we identified increased tourism, economic development and recent increasing research in this field. The main challenges were the absence of studies regarding other prevalent NTD in the region and movement of goods, animals and people across borders.

Conclusions: Although epidemiological studies are still needed to better understand and assess the prevalence of NTD in the area, mainly in Paraguay, these findings can inform decision-makers and health managers to plan a common strategy to address NTD.
Changing characteristics of cancer patients during the COVID-19 pandemic
Authors: Korkusuz Ramazan , Sahingoz Erdal Gulcin , Kibar Akilli Isil , Bilge Müge , Tural Deniz , Kart Yasar Kadriye
Published: April 2022

Introduction: Cancer patients are more sensitive to infections, and, compared to other patients, may have more serious outcomes. Thus, cancer patients are a high-risk group in the COVID-19 pandemic. The aim of this study was to evaluate how cancer patients are affected by COVID-19 infection; the prevalence, and factors affecting mortality.

Methodology: This single-centre, retrospective study included cancer patients under follow-up treatment at our hospital with a laboratory-confirmed diagnosis of COVID-19. Demographic and clinical data were obtained from electronic medical records. The effects of tumour subtype and patient demographic data on COVID-19 prevalence and mortality were analyzed using univariate and multivariate models.

Results: Evaluation was made of 217 cancer patients, comprising140 (64.5%) males and 77 (35.5%) females with a mean age of 62.05 ± 12.95 years. Mortality was seen in 84 (38.7%) patients. Disease grade, chemotherapy within the last 3 months and CT findings were determined to be related to mortality. In logistic regression analysis, the most important factors affecting survival were determined to be severe lung involvement (p < 0.001) and hematological malignancy.

Conclusions: It is clear that cancer patients are at greater risk from COVID-19 infection than individuals without a malignant disease. The results showed that cancer patients with different tumour types had different levels of sensitivity to COVID-19. It is clear that with ongoing viral mutations, the duration of the pandemic is unknown. Therefore, the continuation of cancer screening and cancer treatments should not be interrupted.
Molecular identification of Giardia spp. in Latin America: An updated systematic review on reports from 2017 to 2021
Authors: Sarria-Guzmán Yohanna , Chávez-Romero Yosef , Bernal Jaime Eduardo , González-Jiménez Francisco Erik , Serrano-Silva Nancy , Fusaro Carmine
Published: April 2022

Background: Giardia spp. is the most common protozoan found in coproparasitoscopic tests; it is the cause of gastrointestinal discomfort, with a high prevalence in children and in low-income areas. This systematic review updates available literature on molecular identification of Giardia spp. in Latin America during 2017 to 2021.

Methodology: The guidelines established in Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were used; the study covers the period from January 1, 2017 to October 03, 2021; the search focused on the “molecular identification of Giardia spp. in Latin America” in six different scientific databases. The material found was reviewed to select only those papers that met the inclusion and exclusion criteria.

Results: The search yielded 1036 publications, but only 19 investigations in 6 countries (Brazil, Colombia, Cuba, Ecuador, Mexico, and Venezuela) met the selection criteria. Most were cross-sectional studies carried out in school-age children, the dominant assemblages were A and B while the most frequent subassemblages were AII, BIII and BIV, the most used target genes were tpi and gdh, the prevalence by molecular methods was higher regarding microscopy, the countries with the highest prevalence percentages for Giardiosis were Brazil and Cuba.

Conclusions: More Latin America countries need to generate data of prevalence, incidence, and intensity of Giardiosis. Studies are also needed to estimate the costs of Giardiosis on economic productivity and public health. The present systematic review offers evidence based on the current literature available for the molecular identification of Giardia spp. in Latin America during 2017 to 2021.
Nortriptyline overcomes corticosteroid resistance in NK and NKT-like cells from peripheral blood of patients with chronic obstructive pulmonary disease
Authors: Kadushkin Aliaksei G. , Tahanovich Anatoli D. , Movchan Lyudmila V. , Dziadzichkina Volha V. , Levandovskaya Olga V. , Shman Tatsiana V.
Published: April 2022

Introduction: An antidepressant nortriptyline potentiates glucocorticoid (GC) action with synergistic suppression of inflammatory mediator release, but the precise molecular mechanism is unknown.

Materials and methods: Peripheral blood cells from patients with chronic obstructive pulmonary disease (COPD) (n = 21) were incubated with nortriptyline (1 μM or 10 μM), budesonide (10 nM), or their combinations, followed by stimulation with phorbol myristate acetate (PMA) and ionomycin. Cytokine production, glucocorticoid receptor β (GRβ), histone deacetylase 2 (HDAC2) and histone H4 acetylation of K8 (HAT) expression, p65 NF-kB and p38 mi­togen-activated protein kinase (p38 MAPK) phosphorylation in NK (CD3-CD56+) and NKT-like (CD3+CD56+) cells were analyzed by flow cytometry.

Results: We observed that nortriptyline (10 μM) significantly attenuated the effects of PMA/ionomycin on the synthe­sis of interferon γ (IFNγ), interleukin 4 (IL-4), and IL-8, expression of GRβ and HAT, as well as p65 NF-kB and p38 MAPK phosphorylation in NK and NKT-like cells, whereas nortriptyline (1 μM) only inhibited IL-4 production by NK and NKT-like cells.

Discussion: The combination of nortriptyline (10 μM) and budesonide decreased IFNγ, tumor necrosis factor α, IL-4, IL-8, and GRβ expression, as well as phosphorylated p38 MAPK and p65 NF-κB levels by NK and NKT-like cells above that of budesonide alone. Furthermore, the same association of drugs enhanced HDAC2 expression in NK and NKT-like cells.

Conclusion: Collectively, our results show that nortriptyline might enhance GC function through modulation of HAT, HDAC2, GRβ, phospho-p38 MAPK expression. These data provide a strong rationale for combining nortriptyline with budesonide to treat COPD.
Introduction. Un siècle de « luxemburgismes »
Authors: Ducange Jean-Numa , Fondu Guillaume , Löwy Michael
Published: April 2022

Rosa Luxemburg est une des principales représentantes du marxisme occidental. Le présent article vise à donner quelques éléments précis sur l’histoire de la réception de Rosa Luxemburg dans différents pays. Outre la France, où elle bénéficia d’une réception particulièrement remarquable, il est question dans cet article de l’appréciation de son œuvre dans les deux Allemagnes pendant la guerre froide (1949-1989), en URSS, mais aussi aux États-Unis et au Brésil. Sans prétendre à l’exhaustivité, l’article présente donc un panorama du « luxemburgisme » à l’échelle internationale.
Le vieillard et l’ange
Authors: Paturet Jean-Bernard
Published: April 2022

Chez les Grecs de la guerre de Troie, Nestor, le plus vieux des rois, représente la sagesse, la réflexion et le contrôle de soi face à la fougue d’Achille et à la colère d’Agamemnon. Plus ambivalent est le monde biblique qui accorde une place de choix aux Anciens dans le gouvernement de la communauté mais qui se méfie aussi de la lubricité des vieillards (cf. Suzanne et les vieillards). Le monde moderne refuse souvent l’Ancien comme valeur obsolète et par haine des vieux, les transhumanistes cherchent une éternelle jeunesse qui devient le nouveau paradigme. Les nouveaux modèles sont plutôt à déceler dans les figures contemporaines d’un Guillaume Rozier, - CovidTracker, ou Thomas Pesquet, astronome… Heidegger, réfléchissant sur la Tradition, avait inversé la perspective. Il affirmait que l’Ancien n’est pas derrière nous dans un passé révolu mais au contraire devant nous et qu’il nous invite à poursuivre la réalisation de nos valeurs. L’Ancien est donc un appel qui vient de l’avenir et non du passé. Notre passé est en réalité notre enfance, certes pleine de promesses, mais aussi bien immature.
Le transmetteur
Authors: Laurentie Marie-Josèphe
Published: April 2022

Ce témoignage d’un projet mis en place dans un sessad décrit la participation d’un ancien jeune du service permettant de partager et transmettre son expérience à un adolescent en quête de réponses légales, professionnelles entre autres.