bluuebunny/crossref_metadata_2025_split huggingface dataset:
AKTIVITAS BELAJAR MAHASISWA PROGRAM STUDI PENDIDIKAN FISIKA UNIVERSITAS FLORES PADA MASA PANDEMIK CORONA VIRUS DISEASE 19
Authors: Deno Maria Elfrida , Kaleka Melkyanus Bili Umbu , Harso Aloisius 
Published: March 2022

Penelitian ini bertujuan untuk (1) Mendeskripsikan aktivitas perkulihan mahasiswa selama diberlakukan perkuliahan secara online (2) Mendeskripsikan kasulitan yang dihadapi mahasiswa dalam melaksanakan perkuliahan secara online,(3) upaya yang dilakukan Program Studi dalam mengatasi kesulitan/kendal mahasiswa mengikuti perkuliahan secara online. Metode penelitian yang dipakai menggunakan metode deskriptif kualitatif. Teknik pengumppulan data menggunakaan teknik wawancara terbuka terhadap ketua program studi dan 7 orang dosen pengasuh matakuliah serta penyebaran angket melalui via WhatsApp terhadap 25 orang mahasiswa semester 6 program studi pendiikan fisika. Hasil yang didapatkan dari penelitian ini menunjukan(1) Aktivitas belajar daring mahasiswa pada masa pandemik Covid-19 berjalan“cukup baik” dengan mamanfaatkan aplikasi Zoom Cloud Meeting, Google Classroom, Youtube, dan WhatsApp, (2) kesulitan yang menghambat aktivitas belajar seperti ketersediaan kuota internet tidak memadai, data cepat habis dan jaringan internet hilang muncul. (3) Kemudian masalah tersebut dapat diatasi oleh program studi, dosen maupun mahasiswa itu sendiri. Misalnya penyediaan data internet dari universitas, mengurangi penggunaan aplikasi yang penggunaan datanya terlalu besar, pemberian tugas secara mendiri
Effects of Grain Alignment with Magnetic Fields on Grain Growth and the Structure of Dust Aggregates
Authors: Hoang Thiem 
Published: March 2022

Abstract
Dust grains drift through the interstellar medium and are aligned with the magnetic field. Here we study the effect of grain alignment and motion on grain growth in molecular clouds (MCs). We first discuss the characteristic timescales of alignment of the grain axis of maximum inertia (

a

ˆ

1) with its angular momentum (J; i.e., internal alignment) and alignment of J with the magnetic field (
B
; i.e., external alignment). We determine the maximum grain size with efficient internal (

a

max
,
aJ

) and external (

a

max
,
JB

) alignment for composite grains. For the MC density of n
H ∼ 103–108 cm−3, we find that external alignment can occur for very large grains, but internal alignment only occurs for grains smaller than

a

max
,
aJ

∼
2

μ
m

. The presence of iron clusters within dust grains or suprathermal rotation increases

a

max
,
aJ

to ∼10–50 μm. We then study the growth of aligned grains drifting through the gas. Due to the motion of aligned grains across the magnetic field, gas accretion would increase the grain elongation rather than decrease, as expected from the growth of randomly oriented grains. Coagulation by grain collisions also increases grain elongation, leading to the increase of elongation with the grain size. The coagulation of aligned grains forms dust aggregates that contain elongated binaries comprising a pair of grains with parallel short axes. Grains within dust aggregates in 67P/Churyumov–Gerasimenko obtained by Rosetta have the grain elongation increasing with the grain radius, implying that such dust aggregates might form from aligned grains.
Dynamics of the Transversal Magnetic Fields in Photospheric Quiet Regions
Authors: Liu Yanxiao , Jiang Chaowei , Yuan Ding , Zuo Pingbing 
Published: March 2022

Abstract
Investigation of the properties of photospheric magnetic fields could shed light on the generation mechanism of small-scale magnetic fields in quiet regions. In this work, we studied the transversal magnetic fields by analyzing the linear polarization (LP) features with Sunrise IMaX data. We calculated the area coverage of LP features, and found that they are 16.1%, 8.6%, and 3% for signals above 3, 3.5, and 4.5 times of noise level, respectively. Those LP features extracted above 4.5 times of noise level are further analyzed. A proper value of 1.5 × 1015 Mx for the net magnetic flux contained in LP features is selected to divide the LP features into two types (I and II). Among all detected snapshot LP features, 86% of them are in type I and the rest are in type II. The length scales of LP features in these two types follow Gauss and power-law distributions, separately. For the topology of magnetic fields in type I, the magnetic flux patches might be footpoints of flux loops that root inside transversal magnetic fields with one unipolar thick leg or one thick leg together with one thin leg in opposite polarity. For those in type II, about 50% of them contain bipolar magnetic flux patches, but the rest appear without magnetic flux patches.
Effective Collision Strengths and Radiative Parameters for Lines in the Sc ii Spectrum
Authors: Tayal S. S. , Zatsarinny O. 
Published: March 2022

Abstract
This work reports large-scale calculations of electron excitation effective collision strengths and transition rates for a wide range of Sc ii spectral lines for astrophysical analysis and modeling. The present results are important for reliable abundance determinations in various astrophysical objects, including metal-poor stars, H ii regions, and gaseous nebulae. Accurate descriptions of the target wave functions and adequate accounts of the various interactions between the target levels are of primary importance for calculations of collision and radiative parameters. The target wave functions have been determined by a combination of the multiconfiguration Hartree–Fock and B-spline box-based close-coupling methods, together with the nonorthogonal orbitals technique. The calculations of the collision strengths have been performed using the B-spline Breit–Pauli R-matrix method. The close-coupling expansion includes 145 fine-structure levels of Sc ii belonging to the terms of the 3p
63d
2, 3p
63d4l (l = 0–3), 3p
63d5l (l = 0–3), 3p
63d6s, 3p
64s
2, 3p
64s4l (l = 0–3), 3p
64s5l (l = 0–1), and 3p
64p
2 configurations. The effective collision strengths are reported as a function of electron temperature in the range from 103 to 105 K. The collision and radiative rates are reported for all of the possible transitions between the 145 fine-structure levels. Striking discrepancies exist with the previous R-matrix calculations of the effective collision strengths for the majority of the transitions, indicating possible systematic errors in these calculations. Thus, there is a need for accurate calculations to reduce the uncertainties in the atomic data. The likely uncertainties in our effective collision strengths and radiative parameters have been assessed by means of comparisons with other collision calculations and available experimental radiative parameters.
Et si la gauche se remettait au travail ?
Authors: Lederlin Fanny 
Published: March 2022

La campagne électorale pour la présidence de la République française s’achève et la gauche, divisée, ne semble pas partie pour l’emporter. Outre des difficultés tactiques et stratégiques, ses déboires témoignent d’un profond trouble idéologique. Parmi les diagnostics que l’on peut tenter d’en établir figure celui-ci : la gauche, qui s’est historiquement construite autour de la lutte pour la justice sociale, semble avoir lâché le travail et les travailleurs au profit de combats culturels et identitaires. Peut-être est-il temps de s’interroger sur ce glissement ?
Analyse de la « conception instrumentale » de la raison dans la philosophie morale de Hume
Authors: Saltel Philippe 
Published: March 2022

Impuissante et indifférente, selon Hume, la raison ne saurait que servir les préférences affectives et ne pourrait que leur obéir. Néanmoins le traitement des questions propres au domaine moral, celle du jugement et celle de la motivation, permet de préciser la conception « instrumentale » dont les formules les plus radicales sont restées fameuses. La raison « prise isolément » ( reason alone ) ne peut faire agir et donc ne peut faire préférer : cette nuance motive notre analyse des textes qui, selon l’ordre des arguments, définissent un mode de contribution de la raison à la motivation morale et sa participation à l’établissement d’un schème cognitif pour les jugements moraux. Loin d’être irrationaliste, le sentimentalisme de Hume paraît ainsi particulièrement sophistiqué, au point de constituer un moment déterminant de l’histoire de la philosophie morale.
L’itinéraire d’Ortega à Madrid
Authors: Gómez Álvarez Nieves 
Published: March 2022

Le présent article analyse les lieux significatifs dans la vie du philosophe espagnol José Ortega y Gasset (1883-1955) en relation avec Madrid, la ville qui le vit naître et mourir, et où il réalisa la majeure partie de son travail d'enseignant à l'Université centrale ainsi que certains des cours et conférences les plus remarquables de son œuvre, comme ¿Qué es Filosofía ? , ou la Fondation de l'Institut d'Humanités, avec son disciple Julián Marías (1914-2005). C'est aussi dans la capitale espagnole que le penseur dirigea certaines publications de grande qualité, comme España , El Espectador ou la Revista de Occidente , dans lesquelles furent publiées les traductions espagnoles de certaines des œuvres d'Edmund Husserl ou de Max Scheler.
Pluralité et unité chez Emile Durkheim Sur le rapport entre pluralisme et pensée sociale
Authors: Terrier Jean 
Published: March 2022

Cet article se penche sur la notion de pluralité dans l’œuvre d’Emile Durkheim. Il commence par préciser le sens du concept de pluralisme, qui fait l’objet de débats depuis plusieurs années. Selon cet article, la question de la pluralité se pose à plusieurs niveaux. On peut distinguer entre 1) la question ontologique de la nature de la réalité elle‐même ; 2) la question philosophico-anthropologique de la constitution de la personne humaine ; 3) la question sociologique de la diversité des opinions cohabitant au sein d’une même entité sociale ; 4) la question historique de la stabilité dans le temps des configurations politiques et sociales ; 5) la question socio‐anthropologique de la variabilité des formes d’organisation sociale. Cet article montre que sur chacun de ces sujets Durkheim, contrairement à une lecture répandue qui le perçoit comme un penseur de l’unanimité et de l’harmonie sociales, croit en l’existence d’une forte pluralité. De plus la pluralité, à son avis, à des effets positifs sur la vie sociale moderne, car elle confère à l’individu une plus grande autonomie.
O(s) INTERFERÊNCIA ELETROMAGNÉTICA VIA MÉTODO FDTD
Authors: Nascimento Luciano 
Published: March 2022

RESUMO

A interferência eletromagnética é um fenômeno que pode ocorrer quando um dispositivo eletrônico é exposto a um campo eletromagnético. Muitos materiais apresentam uma eficácia da blindagem contra interferência eletromagnética (IE). Neste artigo, é proposta uma simulação computacional com base no método do domínio do tempo de diferença finita inversa (FDTD), para estudos de interferência de onda eletromagnética em meio material. Alguns parâmetros das ondas interferentes podem ser mudados como amplitude e diferença de fase. Os resultados da interferência de ondas eletromagnéticas de tais progressos foram analisados através da análise do método FDTD.

Palavras-chave: Interferência Eletromagnética (IE). Método FDTD. Fase.
Membranous nephropathy associated with tuberculosis-a case report
Authors: Pal Madhumita , Sengupta Moumita , Basu Keya , Roychowdhury Arpita 
Published: March 2022

Rationale:
Genitourinary tuberculosis can develop during the disease course of disseminated disease and the distinctive histological finding is epithelioid granuloma with or without caseation and accompanied Langhans-type giant cells. Barely, the lesion is only restricted to kidney involving both glomerular and extraglomerular compartment. Association with immune complex-mediated glomerulonephritis has been sparsely reported in the literature.

Patient concern:
A 42-year-old non-diabetic, non-hypertensive male presented with generalized body swelling and frothing of urine for 3 months.

Diagnosis:
Membranous nephropathy with tuberculous interstitial nephritis.

Intervention:
Anti-tuberculous therapy for extrapulmonary tuberculosis was administered along with low dose corticosteroid.

Outcomes:
Reduction of proteinuria was achieved at one month follow-up visit.

Lessons:
Tuberculosis should be considered as a potentially treatable cause of secondary membranous nephropathy as pharmacotherapy greatly helps improve the outcome.
Comparison the Results of Hysterosalpangiography in Patients with Ectopic Pregnancy Treated by Laparoscopic Salpingostomy, Laparotomy, and Treated with Methotrexate
Authors: Khani Behnaz , Ahmadi Mina , Rouholamin Safoura 
Published: March 2022

Background:
Ectopic pregnancy (EP) occurs in 1% of pregnancies, and may seriously effects on women's health and future fertility so this study aimed to compare the results of hysterosalpingography (HSG) after treatment of EP by laparoscopy, laparotomy, and methotrexate (MTX) therapy.

Materials and Methods:
This was a clinical trial study was done on 112 EP women with treatment indication referred to Isfahan Al-Zahran and Shahid Beheshti Hospitals from 2017 to 2018. They were divided into 33 populated groups of laparoscopic salpingostomy, laparotomy and MTX. Then patients of three groups underwent HSG 3 months after intervention. The factors such beta human chorionic gonadotropin (β–hCG) (mIU/mL), size of EP (mm), infection, hospital length of stay (LOS), and tubal patency were recorded and compared between the groups.

Results:
There were no significant differences between groups for age, body mass index, β–hCG, Size of EP, and hospital LOS (P > 0.05). The infection was more frequent in laparotomy group with no significant difference among three groups. The infection rates were 9%, 12%, and 6% for MTX, laparotomy, and laparoscopy arms, respectively. Between the three groups tubal patency as primary outcome had higher frequency than laparoscopy group, although, the difference was not statistically significant (P = 0.595).

Conclusion:
Although infection was more in laparotomy and that tubal patency was more within 3 months in laparoscopy and MTX, there were no statistically significant differences in the results of laparoscopy, laparotomy, and MTX in HSG results.
Perioperative Satisfaction and Health Economic Questionnaires in Patients Undergoing an Elective Hip and Knee Arthroplasty
Authors: Nagappa Mahesh , Querney Jill , Martin Janet , John-Baptiste Ava , Subramani Yamini , Lanting Brent , Schlachta Christopher , Von Koughnett Julie Ann , Speechley Kathy , Correa Jeff , Yunus Chohan Maoz Bin , Rrafshi Nita , Batohi Mariska , Fayad Ashraf , Yang Homer 
Published: March 2022

Background:
Early hospital discharge shifts the recovery burden toward the patient and can leave patients and their caregivers anxious about the recovery process. Postoperative home care must be broadened to include appropriate and adequate support to address recovery at home. In this prospective study, patient and caregiver perspectives on the level of preparation/satisfaction and cost associated with management of recovery in the postoperative period were evaluated.

Methods:
We designed this prospective study to measure patient-reported outcomes and to inform the design of a postoperative home monitoring system. Patients undergoing inpatient total hip or knee replacements were recruited from a preadmission clinic at a university hospital. Patients and caregivers completed preoperative, postoperative, and health economic questionnaires. Bivariate analyses were conducted to understand factors associated with satisfaction with care.

Results:
Of 239 patients and caregivers recruited, preoperative questionnaire was completed by 98.8% of patients, the postoperative follow-up questionnaire was completed by 94.2% of patients, 75% of informal caregivers completed the postoperative follow-up questionnaires, and 93.7% completed the health economic questionnaire. The postoperative satisfaction scores were higher than the preoperative needs/expectation scores for both the overall and individual subscales. Patients undergoing hip arthroplasty reported higher satisfaction scores for postoperative pain management than patients undergoing knee arthroplasty (hip arthroplasty vs. knee arthroplasty: 4.07 ± 1.11 vs. 3.37 ± 1.51; P < 0.001). Patients who underwent knee arthroplasty reported better satisfaction scores with regard to having enough information on how to manage leg stiffness at home compared to patients undergoing hip arthroplasty (knee arthroplasty vs. hip arthroplasty: 3.13 ± 1.35 vs. 2.78 ± 1.30; P = 0.04).

Conclusion:
Overall, patients are generally satisfied with perioperative care, but they have distinct needs and expectations regarding perioperative medication and postoperative pain management. Virtual postoperative monitoring may be a useful tool during postoperative care to address many of patients’ concerns.
Clinical Analysis of Kidney Injury in Elderly Patients with COVID-19
Authors: Liu Yang , Wang Chao-Chen , Ao Qiang-Guo , Hou Jie-Bin , Wei Lei , Qi Feng-Yu , He Wei , Zhao Jia-Hui , Ma Qiang , Wang Xiao-Hua , Cheng Qing-Li , Yang Guang 
Published: March 2022

Abstract

Objective:
The aim of the study was to analyze the clinical features of elderly patients with coronavirus disease 2019 (COVID-19) and to explore the relationship between COVID-19 patients and kidney injury.

Methods:
A total of 188 elderly patients with confirmed COVID-19 enrolled in this study were hospitalized for at least 1 week in the Central Theater Command General Hospital of Chinese People's Liberation Army from January 3, 2020 to March 14, 2020. The recorded information included clinical data and results of kidney-related laboratory tests. Retrospective analysis was performed.

Results:
The median age of the patients was 69 years (interquartile range 65-78, range: 60-97 years); 31.4% were 60-74 years old, and 68.6% were over 75 years old. A total of 12.8% and 18.6% of the patients were in critical and severe stages of COVID-19, respectively. The proportions of patients using mechanical ventilators and deaths were 9.5% and 8.5%, respectively. A total of 26.1% and 8.5% of the patients showed mild elevation of blood urea nitrogen (BUN) and serum creatinine (SCr) levels at admission. A total of 18.6% and 5.9% of the patients had elevated BUN and SCr 1 week after admission, respectively. A total of 3.1% of the patients were diagnosed with acute kidney injury, and 75% of those patients had chronic kidney disease before admission. Compared with the patients aged 60-74 years, those over 75 years exhibited significantly increased proportions of elevated BUN levels, critical illness, use of mechanical ventilated, and death. Multivariate logistic regression analysis revealed that an elevated BUN level at admission and 1 week after admission were independent risk factors for death in the elderly patients with COVID-19.

Conclusion:
There were more critical cases and a high mortality in elderly patients with COVID-19. An increased BUN level was an independent risk factor for death in elderly patients with COVID-19.
The Correlation of Chronological Age and Micro Ribonucleic Acid-135b Expression in Spent Culture Media of In vitro Fertilisation Patient
Authors: Azzahra Tiara Berliana , Febri Ririn Rahmala , Iffanolida Pritta Ameilia , Mutia Kresna , Wiweko Budi 
Published: March 2022

ABSTRACT

Background:
The lack of accuracy in embryo viability assessment methods still remains a challenge to increase the in vitro fertilisation (IVF) success rate. The chronological age and micro ribonucleic acid (RNA)-135b influence the quality of the embryo since microRNA-135b expresses stably in the spent culture media. Therefore, microRNA-135b has the potential to become a non-invasive biomarker of IVF embryo quality.

Aims:
(1) The aim of this study is to determine the chronological age and microRNA-135b expression distribution of IVF patients. (2) to determine the correlation between chronological age and microRNA-135b expression in spent culture media of IVF patients.

Study Setting and Design:
An observational study was conducted in Yasmin IVF clinic.

Materials and Methods:
The chronological age data were collected from the medical records and 31 spent culture media samples from 11 IVF patients were taken on day 5 of embryo culture. We also collected the basal media sample as the control group. The microRNA-135b expression was analysed using quantitative real-time polymerase chain reaction (qPCR) analysis.

Statistical Analysis Used:
The data analysis was performed using IBM SPSS Statistics 25.

Results:
The chronological age and microRNA-135b expression were distributed abnormally. There was a significant positive correlation with moderate statistical power between chronological age and microRNA-135b expression in spent culture media. MicroRNA-135b expression increased 4.9-fold in spent culture media than basal media of IVF.

Conclusions:
The increase of chronological age is followed by the rise of microRNA-135b expression in spent culture media of IVF patients. The microRNA-135b is a potential biomarker to predict IVF embryo quality.
Reproductive Toxicity of Carlina gummifera L. Incense Inhalation in Adult Male Wistar Rats
Authors: Dorsaf Hallegue , Sabrine Moujahed , Zaineb Ben Barka , Olfa Tebourbi , Mohsen Sakly , Khémaïs Ben Rhouma 
Published: March 2022

ABSTRACT

Background:
Burning incense of Carlina gummifera L. is a traditional practice in North African countries for religious or ritual intentions.

Aim:
The aim of this study was to investigate the effects of smoke incense of this plant on the reproductive function in adult male rats.

Setting and Design:
This study was conducted in the Integrated Physiology Laboratory.

Materials and Methods:
Plant roots were collected, dried and finely ground in powder form. Adult Wistar rats were randomly assigned to treated groups exposed daily during 60 min for 15 consecutive days to smoke incense at 2, 4 and 6 g and a control group was subjected to the same conditions in the absence of smoke.

Statistical Analysis Used:
Statistical analysis was performed using one-way analysis of variance followed by Tukey's multiple comparison as the post hoc test.

Results:
Exposure to the incense of Carlina gummifera L. seriously affected dose dependently the reproductive function in male rats. It was found that in treated groups, the testicle relative weight decreased, while those of seminal vesicles and prostate increased when compared to the untreated group. Carlina gummifera L. incense inhalation reduced the total number, viability and mobility of epididymis spermatozoa compared to control. Furthermore, incense exposure induced various histological changes in the testes, prostate and seminal vesicles, including in particular a decrease in the number of gametes in the seminiferous tubes, the reduction of prostatic secretions and the macrophagic resorption of the seminal secretions. The effect of Carlina incense on the antioxidant system was evaluated by assaying the two antioxidant enzyme activities catalase and superoxide dismutase as well as thiol group levels in the testicles. Our results showed that fumigation affected these parameters, suggesting that the morphological and functional modifications in the male reproductive system induced by Carlina gummifera L. incense may be related, in part, to the alteration of the oxidative balance in the testicle.

Conclusion:
Smoke incense of Carlina gummifera L. caused marked reproductive toxicity in adult male rats associated with induced oxidative stress.