bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of Teachers and Students Experiences on Online Teaching during COVID-19 Pandemic: A Case-Study at a University Dental Teaching Hospital
Authors: Bawane Shilpa , Bhate Kalyani , Kale Luke , Shetty Lakshmi , Raut Shreya 
Published: September 2021

Background: COVID-19 disease is a global phenomenon that is exerting its influence on a lot more than just health sector. Colleges, Institutes, and Schools were also part of the lockdown that followed the outbreak. Educational institutes have shifted from classroom teaching to online teaching-learning platforms.
Aim: The study aimed to assess teachers' and students' experiences on online teaching during the COVID-19 pandemic at university dental teaching hospital Pune, India.
Methodology: The study design was a cross-sectional questionnaire-based study. The research setting was online. Eligibility Criteria of the study were the teaching staff of the College who had taken to online teaching and undergraduate students who had attended online classes. Custom-made questionnaire link using 'Google form' was sent to teachers and students through WhatsApp and E-mail.
Results: 63% of students and 90% of staff responded with the questionnaires. During COVID-19, 96.7% of teachers and 98.4% of students had used Zoom as an online teaching platform. 25.6% of teachers had experienced network issues as the main problem. 90% of staff did not prefer online teaching over classroom teaching. 10% of teachers did prefer online teaching during the COVID-19 pandemic. 82.4% of students didn't prefer an online learning method. The most common difficulties faced by students were network issues.
Conclusion: Knowledge of teachers' and students' experiences on online teaching is important to overcome the issues faced by them. Teachers' opinions are vital for improvising and dealing with issues with online teaching. The result of this study can be used as a guide for improving effective online teaching.
Effectiveness of Near Peer Learning on Knowledge and Habit Making Regarding Prevention of Water Borne Diseases among Primary School Children – A Pilot Study
Authors: Verma Rupa Ashok , Maurya Archana 
Published: September 2021

Near peer learning is an educational practice in which children interact with their peers or friends attain educational objectives. In simpler terms children involved in this type of learning are seniors and juniors of the same school or college. Learners are more comfortable and relaxed, and ready to learn when teacher is their peer, whom they know and understand. At the same time, it develops communication skill, leadership skills and confidence of public dealings in the teacher peer. In recent days, near peer teaching and learning becoming popular as learning methodology in schools and colleges. It involves students exposed to similar circumstances, from same educational programme, but at different levels. Research question of the study is ‘Is Near Peer learning effective on improving knowledge and habit making regarding prevention of waterborne diseases among primary school children?’
This study was carried out systematically to assess the effectiveness of structured Near Peer learning, where a senior student teaches regarding prevention of waterborne diseases to junior students. Here the subject selected for structured near peer learning is “prevention of waterborne diseases”. Elder children of age group 13-14 years taught their near peers of age group 9-10 years, regarding prevention of waterborne diseases with special attention on improving personal hygiene and hand hygiene. The researcher assessed the effectiveness of structured Near peer learning regarding prevention of water borne diseases, in increasing the knowledge and improving the habits related to Personal hygiene and Hand washing, among primary school children. An evaluative research approach with one group pre test post test design was adopted. In the study, 4 students of 13-14 years age group were selected and researcher taught them regarding prevention of waterborne diseases. 40 primary school children of age group 9-12 years, constituting both boys and girls were also selected through convenient sampling technique. Then one elder child taught 10 younger children regarding same. Pretest and post test done. The questionnaire used were, demographic proforma, knowledge questionnaire, and checklist. Mean pretest was 9.925 and mean post test knowledge was 15.6
Mean pretest for practice was 33.5 and mean post test for practice was 42.07. Hand washing mean pretest practice score was 7.075 and post test was 10.095. There was significant association between pre test scores regarding knowledge and practice and education of child, occupation of father and age of child. P_value<0.005.
Aminivibrio
Authors: Tonouchi Akio 
Published: September 2021

Abstract

A.mi.nivi'bri.o. N.L. neut. n.
aminum
amine; N.L. masc. n.
vibrio
a vibrio; N.L. masc. n.
Aminivibrio
a vibrio that degrades amines.

Synergistetes / Synergistia / Synergistales / Synergistaceae / Aminivibrio

Cells are Gram‐stain‐negative, non‐spore‐forming, and strictly anaerobic vibrios (0.8 × 2.0–2.5 μm), occurring singly or in pairs. Motile with two or three lateral flagella. Optimal growth is around neutral pH. Growth by fermentation of amino acids and organic acids but not carbohydrates. The Stickland reaction is not observed. Does not reduce sulfate, sulfite, thiosulfate, fumarate, or nitrate. Yeast extract is required for growth. In coculture with a hydrogenotrophic methanogen, some amino acids and fumarate are syntrophically oxidized. A member of “subdivision E” of the family
Synergistaceae
in the phylum
Synergistetes
. The major cellular fatty acids are iso‐C
13:0
, iso‐C
15:0
, and C
19:1
ω11
c
/C
19:1
ω9
c
.

DNA G + C content (mol%)
: 61.9 (HPLC).

Type species
:
Aminivibrio pyruvatiphilus
Honda et al. 2013
VP
.
Serpentinicella
Authors: Quéméneur Marianne , Mei Nan , Postec Anne , Erauso Gael 
Published: September 2021

Abstract

Ser.pen.ti.ni.cel'la. N.L. neut. n.
serpentinum
serpentine; L. fem. n.
cella
a cell; N.L. fem. n.
Serpentinicella
a cell from serpentine.

Firmicutes / Clostridia / Clostridiales / Clostridiaceae / Serpentinicella

Serpentinicella
is a genus in the family
Clostridiaceae
and phylum
Firmicutes
. It currently contains only one validly published species,
Serpentinicella alkaliphila
, which was isolated from a chimney of the serpentinite‐hosted Prony Bay Hydrothermal Field (PBHF), New Caledonia. This species is an alkaliphilic and mesophilic anaerobe that can grow in the absence of NaCl (tolerated up to 4%). The optimum growth pH and temperature of this species are 9.5 and 37°C, respectively. Cells of the strain 3b
T
are terminal spore forming and motile (with peritrichous flagella) rods (1–10 μm long and 0.4–0.6 μm wide), occurring singly or in pairs. It is chemoorganotrophic using proteinaceous compounds and organic acids but not sugars. The only substrates used for growth were lactate, pyruvate, and crotonate. The current knowledge of its habitat is limited to alkaline and/or saline ecosystems.

DNA G + C content (mol%)
: 33.2.

Type species
:
Serpentinicella alkaliphila
Mei et al. 2016
VP
.
Klenkia
Authors: Montero‐Calasanz Maria del Carmen 
Published: September 2021

Abstract

Klen'ki.a. N.L. fem. n.
Klenkia
, named in honor of Hans‐Peter Klenk, Professor at Newcastle University (United Kingdom) in recognition of his contributions to bacterial systematics including the promotion of studies in
Geodermatophilaceae
.

Actinobacteria / Actinobacteria / Geodermatophilales / Geodermatophilaceae / Klenkia

The genus
Klenkia
comprises mesophilic, neutrophilic bacteria that are isolated from grass soil and sediments. Cells are motile, rod shaped, and Gram‐stain‐positive. Colonies are usually pink colored and circular with a moist surface. Grow well on glucose–yeast extract–malt extract (GYM)
Streptomyces
and Reasoner's 2A (R2A) agars. The peptidoglycan in the cell wall contains
meso
‐diaminopimelic acid, and the basic whole‐cell sugar pattern includes ribose, mannose, and glucose. The predominant menaquinones are MK‐9(H
4
) and MK‐9(H
0
). The polar‐lipid profile always involves diphosphatidylglycerol, phosphatidylethanolamine, hydroxyphosphatidylethanolamine, phosphatidylinositol, and glycophosphoinositol. The major cellular fatty acids are iso‐C
16:0
and iso‐C
15:0
.

DNA G + C content (mol%)
: 74.0–75.0 (genome analysis).

Type species
:
Klenkia marina
Montero‐Calasanz et al. 2017, VL181.
Roseimaritima
Authors: Lage Olga Maria , Calisto Rita 
Published: September 2021

Abstract

Ro.se.i.ma.ri'ti.ma. L. masc. adj.
roseus
, rose colored; L. masc. adj.
maritimus
, of the sea, marine; N.L. fem. n.
Roseimaritima
, the marine rose‐colored bacterium.

Planctomycetes / Planctomycetia / Pirellulales / Pirellulaceae / Roseimaritima

The genus
Roseimaritima
accommodates Gram‐negative bacteria, of variable shapes, that can be spherical to ovoid and pear shaped. Cells are frequently organized in rosettes and form light pink colonies on agar medium. Cells possess fimbria and crateriform structures located at one cell pole and reproduce by budding. Members of this genus are chemoheterotrophic, strictly aerobic, slightly alkaliphilic, and mesophilic bacteria. Vitamin B12 may be needed for growth. The respiratory quinone is MK6. The major fatty acids are C
18:1
ω9
c
and C
16:0
. Diphosphatidylglycerol is one of the major polar lipids. The genome size varies from 6.25 to 8.21 Mb. The genus is a member of the class
Planctomycetia
, order
Pirellulales
, and family
Pirellulaceae
. Members of the genus inhabit marine or brackish environments (e.g., the biofilm of macroalgae, sediments, and fjord water).

DNA G + C content (mol%)
: 59.1–62.4 (Genome sequence).

Type species
:
Roseimaritima ulvae
Bondoso et al. 2015, VL171.
Hypertension management in elderly with severe intracerebral hemorrhage
Authors: Zhao Jingjing , Yuan Fang , Fu Feng , Liu Yi , Xue Changhu , Wang Kangjun , Yuan Xiangjun , Li Dingan , Liu Qiuwu , Zhang Wei , Jia Yi , He Jianbo , Zhou Jun , Wang Xiaocheng , Lv Hua , Huo Kang , Li Zhuanhui , Zhang Bei , Wang Chengkai , Wang Xiaomu , Li Hongzeng , Yang Fang , Jiang Wen ,   the CHASE Study Group
Published: September 2021

AbstractObjectiveTo explore the effect of individualized blood pressure (BP)‐lowering treatment on the outcomes of elderly patients with severe intracerebral hemorrhage (ICH).MethodsWe performed an exploratory analysis of Controlling Hypertension After Severe Cerebrovascular Event (CHASE) trial, which was a multicenter, randomized, controlled clinical trial. Patients with severe ischemic or hemorrhagic stroke (defined as GCS ≤ 12 or NIHSS ≥ 11) were randomized into individualized versus standard BP‐lowering treatment in CHASE trial. In this exploratory analysis, patients with severe ICH were included. The primary outcome was the percentage of patients with 90‐day functional independence defined as modified Rankin Scale (mRS) ≤2.ResultsWe included 242 patients with severe ICH in the present analysis, consisting of 142 patients aged <65 years and 100 patients aged ≥65 years. There were significant differences between patients aged ≥65 years and <65 years in the proportion of functional independence (47.9% vs. 15.0%, P < 0.001) and good outcome (73.9% vs. 50.0%, P < 0.001) at day 90. In patients aged ≥65 years, the adjusted individualized BP‐lowering treatment had an unequivocal effect on the functional independence at day 90 (21.6% vs. 8.2%, odds ratio [OR]: 4.309, 95% confidence interval [CI]: 1.040‐17.859, P = 0.044) and improved the neurological deficits at discharge (∆ NIHSS ≥ 4: 64.7% vs. 34.7%, OR: 4.300, 95% CI: 1.599‐11.563, P = 0.004).InterpretationCompared with the younger counterparts, the elderly patients (≥65 years) with acute severe ICH might benefit more from individualized BP‐lowering treatment.
Magnetoelectrical Clothing Generator for High‐Performance Transduction from Biomechanical Energy to Electricity
Authors: Wang Rui , Du Zhuolin , Xia Zhigang , Liu Jiaxin , Li Pan , Wu Zhenhua , Yue Yamei , Xiang Yuanzhuo , Meng Jinchang , Liu Dexiang , Xu Weilin , Tao Xiaoming , Tao Guangming , Su Bin 
Published: September 2021

AbstractElectromagnetism, which has been used to harvest energy from human motion, is expected to power an increasing number of wearable electronic devices upon fabrics. However, most reported electromagnetism‐based approaches necessitate rigid and heavy setups. Here, a scalable‐manufactured flexible magnetoelectrical clothing generator is demonstrated that can generate electricity through the swinging of the arms. A “particle flow spinning” (PFS) method can produce continuous magnetic yarns, resulting in a magnetic fabric through an industrial weaving machine. Fabrics can be prepared in large quantities and have a lower cost. The magnetic fabrics and conductive wires are built on two sides of the armpit parts of the clothing, leading to continuous and stable voltage and current when swinging arm, 14.3 V peak voltage, 31.2 mA peak current, and 96 mW peak power (3197 mW m−2 peak power density) in series to a low‐impedance load (750 ohms). Furthermore, the magnetic fabrics can work under water without sealing treatment, in acidic/alkaline environments or at extreme temperatures. The magnetoelectrical clothing generator can power diverse electronic devices in many fields, such as LED lights, calculators, wireless communication, and health monitoring devices. This approach opens a path toward exploring electromagnetic energy harvesting strategies to realize power generation for the development of clothing electronics.
A Cross‐Coupling Reaction Between Aliphatic Aldehydes And Sulfonium Salts
Authors: Chen Baoli , Li Li , Chen Jiean , Huang Yong 
Published: September 2021

AbstractThe synthesis of multi‐substituted electron‐deficient alkenes is often accomplished via cross‐coupling of diazo compounds in the presence of a metal catalyst. Herein, we report an organocatalytic protocol that enables the direct coupling of aliphatic aldehydes with sulfonium ylides. A key carbene mimetic, α‐iodoenamine/enol, is believed to engage in direct cross‐coupling with a sulfonium ylide, delivering α,β‐unsaturated carbonyl compounds with a formyl substituent. The reaction demonstrated remarkably mild conditions, convergence, and control of olefin geometry.magnified image
An analysis of social determinants of health and structural competency training in global emergency medicine fellowship programs in the United States
Authors: Grossman Lindsay G. , Mechanic Oren J. , Orr Zvika , Cioe‐Peña Eric C. , Landry Alden , Unger Shifra , Greenstein Josh , Alpert Evan Avraham 
Published: September 2021

AbstractBackgroundClinicians must be aware of the structural forces that affect their patients to appropriately address their unique health care needs. This study aimed to assess the participation of global emergency medicine (GEM) fellowship programs in formal social determinants of health (SDH) and structural competency (SC) training to evaluate the existence and procedures of such programs.MethodsA cross‐sectional study conducted with a short, online survey with questions regarding the presence of curriculum focused on SDH, SC, educational metrics, and the desire for further formal training in this domain was sent to all 25 GEM fellowship directors through the Global Emergency Medicine Fellowship Consortium (GEMFC) email listserv.ResultsEighty percent (20/25) of GEM fellowship directors responded to the survey. All (20/20) of participating fellowship programs included SDH and SC training in their didactic curriculum, and eight of 20 (40%) programs offered similar training for faculty. Additionally, 19 of 20 (95%) of respondents indicated interest in an open‐source tool for emergency medicine (EM) fellowship training in SDH and SC.ConclusionsWhile multiple GEM programs offer formal training on SDH and SC, gaps exist regarding similar training for faculty. Additionally, there is a lack of metrics to determine fellows' comfort with the content of this training. As a majority of GEMFC programs requested, an open‐source tool would allow a uniform curriculum and measurement of EM fellowship training in SDH and SC.
IrOx@In2O3 Heterojunction from Individually Crystallized Oxides for Weak‐Light‐Promoted Electrocatalytic Water Oxidation
Authors: Yang Yumei , Ji Yujin , Li Guangyu , Li Youyong , Jia Baohua , Yan Junqing , Ma Tianyi , Liu Shengzhong (Frank) 
Published: September 2021

AbstractMulti‐field coupling, especially photo‐assisted electrocatalysis, has recently been studied to further improve the oxygen evolution reaction (OER). In this study, an n‐type cubic In2O3 semiconductor is employed for the first time to load IrOx species (Ir‐In2O3 mass ratio: 17.6 %). Consequently, the IrOx@In2O3 heterojunction, which exhibits outstanding OER performance promoted by weak‐light irradiation, is formed. Notably, IrOx (approximately 1.7 nm in size) and In2O3 are observed to crystallize independently during heterogeneous nucleation with no Ir atoms doped in the In2O3 lattice. This avoids Ir loss and ensures the full exposure of all Ir‐based sites. The IrOx@In2O3 heterojunction exhibits enhanced electrocatalytic water oxidation with overpotential values of 190 and 231 mV at current densities of 10 and 50 mA cm−2, surpassing all IrOx‐based catalyst results reported to date. Nano‐sized IrOx on the surface, irradiated by the weak‐light beam of LED‐365 (1.8 mW cm−2), can be fully activated as an OER site. Moreover, the overpotential is further reduced to 176 and 210 mV to deliver the corresponding current. This work is anticipated to aid in the design of more efficient multi‐field coupling OER systems.
Controlled Asymmetric Charge Distribution of Active Centers in Conjugated Polymers for Oxygen Reduction
Authors: Li Daohao , Wang Binbin , Long Xiaojing , Xu Wenjia , Xia Yanzhi , Yang Dongjiang , Yao Xiangdong 
Published: September 2021

AbstractActive center reconstruction is essential for high performance oxygen reduction reaction (ORR) electrocatalysts. Usually, the ORR activity stems from the electronic environment of active sites by charge redistribution. We introduce an asymmetry strategy to adjust the charge distribution of active centers by designing conjugated polymer (CP) catalysts with different degrees of asymmetry. We synthesized asymmetric backbone CP (asy‐PB) by modifying B←N coordination bonds and asymmetric sidechain CP (asy‐PB‐A) with different alkyl chain lengths. Both CPs with backbone and sidechain asymmetry exhibit superior ORR performance to their symmetric counterparts (sy‐Pandsy‐PB). Theasy‐PBwith greater asymmetry shows higher catalytic activity thanasy‐PB‐Awith relatively smaller asymmetry. DFT calculations reveal that the increased dipole moment and non‐uniform charge distribution caused by asymmetric structure endows the center carbon atom of bipyridine with efficient catalytic activity.
Tris(pentafluorophenyl)borane‐Catalyzed Carbenium Ion Generation and Autocatalytic Pyrazole Synthesis—A Computational and Experimental Study
Authors: Dasgupta Ayan , Babaahmadi Rasool , Pahar Sanjukta , Stefkova Katarina , Gierlichs Lukas , Yates Brian F. , Ariafard Alireza , Melen Rebecca L. 
Published: September 2021

AbstractIn recent years, metal‐free organic synthesis using triarylboranes as catalysts has become a prevalent research area. Herein we report a comprehensive computational and experimental study for the highly selective synthesis of N‐substituted pyrazoles through the generation of carbenium species from the reaction between aryl esters and vinyl diazoacetates in the presence of catalytic tris(pentafluorophenyl)borane [B(C6F5)3]. DFT studies were undertaken to illuminate the reaction mechanism revealing that the in situ generation of a carbenium species acts as an autocatalyst to prompt the regiospecific formation of N‐substituted pyrazoles in good to excellent yields (up to 81 %).
An NADPH‐Dependent Ketoreductase Catalyses the Tetracyclic to Pentacyclic Skeletal Rearrangement in Chartreusin Biosynthesis
Authors: Jiao Fang Wen , Wang Yi Shuang , You Xue Ting , Wei Wanqing , Chen Yu , Yang Cheng Long , Guo Zhi Kai , Zhang Bo , Liang Yong , Tan Ren Xiang , Jiao Rui Hua , Ge Hui Ming 
Published: September 2021

AbstractRedox tailoring enzymes play key roles in generating structural complexity and diversity in type II polyketides. In chartreusin biosynthesis, the early 13C‐labeling experiments and bioinformatic analysis suggest the unusual aglycone is originated from a tetracyclic anthracyclic polyketide. Here, we demonstrated that the carbon skeleton rearrangement from a linear anthracyclic polyketide to an angular pentacyclic biosynthetic intermediate requires two redox enzymes. The flavin‐dependent monooxygenase ChaZ catalyses a Baeyer–Villiger oxidation on resomycin C to form a seven‐membered lactone. Subsequently, a ketoreductase ChaE rearranges the carbon skeleton and affords the α‐pyrone containing pentacyclic intermediate in an NADPH‐dependent manner via tandem reactions including the reduction of the lactone carbonyl group, Aldol‐type reaction, followed by a spontaneous γ‐lactone ring formation, oxidation and aromatization. Our work reveals an unprecedented function of a ketoreductase that contributes to generate structural complexity of aromatic polyketide.
Timor‐Leste economic survey: The end of petroleum income
Authors: Scheiner Charles 
Published: September 2021

AbstractAs Timor‐Leste nears the end of its petroleum‐exporting era, the transition to a sustainable economy has become even more challenging due to partisan political competition, disastrous flooding and the pandemic. This article describes the current economic context, and deteriorating trends. After a brief discussion of the political situation and the impacts of COVID‐19, it explores expenditure and income trends in recent state budgets, with a particular focus on dependency on oil and gas revenues and their investments, which pay for 80% of state spending and may run out within a decade. It then assesses in detail revenue prospects from current and future oil and gas activities, including Greater Sunrise and the planned Tasi Mane petroleum infrastructure project. The analysis shows that it is highly likely that resource revenue will continue to decline. Diversification is not an option; it is the only way forward.
A new method providing complementary explanation of the blood‐enriching function and mechanism of unprocessed Angelica sinensis and its four kinds of processed products based on tissue‐integrated metabolomics and confirmatory analysis
Authors: Ji Peng , Li Chen‐chen , Wei Yan‐ming , Hua Yong‐li , Yao Wan‐ling , Wu Fan‐lin , Zhang Xiao‐song , Yuan Zi‐wen , Zhao Nian‐shou , Zhang Ya‐hui , Wen Yan‐qiao 
Published: September 2021

AbstractAngelica sinensis (AS) is a common Traditional Chinese Medicine used for tonifying blood in China. Unprocessed AS and its four kinds of processed products (ASs) are used to treat blood deficiency syndrome in the country. The different blood‐tonifying mechanisms of ASs remain unclear. In this work, a novel method integrating metabolomics and hematological and biochemical parameters was established to provide a complementary explanation of blood supplementation mechanism of ASs. Our results revealed that different ASs exhibited various blood supplementation effect, and that AS parched with alcohol demonstrated the best blood supplementation effect. Eight metabolites from liver tissue and 12 metabolites from spleen tissue were considered to be potential biomarkers. These biomarkers were involved in four metabolic pathways. Correlation analysis results showed that l‐aspartic acid and l‐alanine (spleen tissue), linoleic acid, and l‐cystathionine (liver tissue) exhibited a high positive or negative correlation with the aforesaid biochemical indicators. The blood‐supplementation effect mechanism of ASs were related to four metabolic pathways. l‐Aspartic acid and l‐alanine (spleen tissue), linoleic acid, and l‐cystathionine (liver tissue) were the four key metabolites associated with the blood supplementation effect of ASs. This study gives a complementary explanation of the blood supplementation effect and mechanism of action of ASs.