bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two-tier Multiple-choice Questionnaires to Detect the Students’ Misconceptions about Heat and Temperature
Authors: Métioui Abdeljalil , Trudel Louis 
Published: June 2021

<p style="text-align: justify;">This study aimed to develop a two-tiers diagnostic test to assess the high school, junior high school, and elementary pre-service teachers about the heat and the temperature concepts in a general physics course. There are two tiers in this test: The first tier composed of six items consisting of multiple-choice questions related to the heat and the temperature, including the correct answer. The second tier of each item contains reasons for students choosing their answer to the first tier. The second tier included four or five responses, one of which is a correct conceptual understanding. The wrong answers, also called distractors, were based on students’ misconceptions. To this end, 128 pre-service teachers from Quebec in Canada completed a pencil-paper questionnaire of sixty minutes duration composing of six questions (four open-ended questions and two multiple choice questions with justifications). As illustrations, the following conceptual understandings have been identified in our qualitative analysis of the data collected: 1. The change of state of the matter does not require a constant temperature; 2. The temperature is a measure in degrees to indicate the level of heat of an object or person; 3. The mercury contained in a thermometer expands when it is heated so that the particles which constitute it expand; and 4. The sensation of cold (or warm) is related to the difference in temperature.</p>
Nanosecond pulsed deep-red laser source by intracavity frequency-doubled crystalline Raman laser
Authors: Zhao Hui , Li Ke-Yin , Dai Shi-Bo , Tu Zhi-Hua , Yang Qi-Guo , Zhu Si-Qi , Yin Hao , Li Zhen , Chen Zhen-Qiang 
Published: June 2021

We demonstrated a deep-red laser source by intracavity frequency-doubled crystalline Raman laser for the first time, to the best of our knowledge. The actively

Q

-switched 1314 nm

N
d

:

L
i
Y
F

4

laser was first converted to the eye-safe Raman laser using a

K
G
d

(

W
O

4

)
2

(KGW) crystal, which was subsequently frequency-doubled in a bismuth borate crystal. Benefiting from the KGW bi-axial properties, the deep-red laser source was able to lase separately at two different spectral lines at 730 and 745 nm. Under an optimal repetition rate of 4 kHz, the maximum average powers of 1.7 and 2.0 W were attained with good beam quality of

M
2

≈

1.7

. The corresponding pulse durations were determined to be 3.0 and 2.8 ns with the peak powers up to approximately 140 and 180 kW, respectively.
The impact of COVID–19 lockdown on dengue transmission in Sri Lanka; A natural experiment for understanding the influence of human mobility
Authors: Liyanage Prasad , Rocklöv Joacim , Tissera Hasitha Aravinda 
Published: June 2021

BackgroundDengue is one of the major public health problems in Sri Lanka. Its outbreak pattern depends on a multitude of drivers, including human mobility. Here we evaluate the impact of COVID–19 related mobility restriction (lockdown) on the risk of dengue in Sri Lanka.MethodologyTwo-stage hierarchical models were fitted using an interrupted time-series design based on the notified dengue cases, January 2015 to July 2020. In the first stage model, the district level impact was estimated using quasi-Poisson regression models while accounting for temporal trends. Estimates were pooled at zonal and national levels in the second stage model using meta-analysis. The influence of the extended period of school closure on dengue in children in the western province was compared to adults.FindingsStatistically significant and homogeneous reduction of dengue risk was observed at all levels during the lockdown. Overall an 88% reduction in risk (RR 0.12; 95% CI from 0.08 to 0.17) was observed at the national level. The highest impact was observed among children aged less than 19 years showing a 92% reduction (RR 0.8; 95% CI from 0.03 to 0.25). We observed higher impact in the dry zone having 91% reduction (RR 0.09; 95% CI from 0.05 to 0.15) compared to wet zone showing 83% reduction (RR 0.17; 95% CI from 0.09 to 0.30). There was no indication that the overall health-seeking behaviour for dengue had a substantial influence on these estimates.SignificanceThis study offers a broad understanding of the change in risk of dengue during the COVID–19 pandemic and associated mobility restrictions in Sri Lanka. The analysis using the mobility restrictions as a natural experiment suggests mobility patterns to be a very important driver of dengue transmission.
Major depressive episode externalizing symptoms among university students
Authors: Flesch Betina Daniele , Sica Cruzeiro Szortyka Ana Laura , Houvèssou Gbènankpon Mathias , Neitzke Höfs Fabiane , Gastal Fassa Anaclaudia 
Published: June 2021

IntroductionDepression affects 32% of university students and Major Depressive Episode (MDE) externalizing symptoms indicate the severity of the case. This study assessed MDE externalizing symptom prevalence and associated factors among university students, with emphasis on aspects related to the academic environment, including interpersonal relationships and study area chosen by students.MethodsA census was performed on new students in the first semester of 2017 at a university in Southern Brazil. Depressive symptom prevalence was assessed by the Patient Health Questionnaire-9. The multivariate analysis of the associated factors followed a hierarchical model, using Poisson regression with backward selection.ResultsMDE externalizing symptoms were present in 20% of the university students and were more frequent among females, those with brown, black or other skin color in comparison to those with white skin color. Individuals with a family history of depression, minority sexual orientation, negative self-reported academic performance, students taking courses in the area of Linguistics, Modern Languages and Arts and students who reported strong conflicts with university teachers or colleagues also had higher prevalence of externalizing symptoms.ConclusionIt is important for education institutions to train teachers to identify and deal adequately with students who have externalizing symptoms of MDE. In addition, education institutions need to pay attention to conflicts, both between students and also between students and teachers in order to take preventive measures in these circumstances.
Combination of (interferon beta-1b, lopinavir/ritonavir and ribavirin) versus favipiravir in hospitalized patients with non-critical COVID-19: A cohort study
Authors: A. Malhani Areej , A. Enani Mushira , Saheb Sharif-Askari Fatemeh , R. Alghareeb Mona , T. Bin-Brikan Roaa , A. AlShahrani Safar , Halwani Rabih , Tleyjeh Imad M. 
Published: June 2021

Objectives
Our study aims at comparing the efficacy and safety of IFN-based therapy (lopinavir/ritonavir, ribavirin, and interferon β-1b) vs. favipiravir (FPV) in a cohort of hospitalized patients with non-critical COVID-19.

Methods
Single center observational study comparing IFN-based therapy (interferon β-1b, ribavirin, and lopinavir/ritonavir) vs. FPV in non-critical hospitalized COVID-19 patients. Allocation to either treatment group was non-random but based on changes to national treatment protocols rather than physicians’ selection (quasi-experimental). We examined the association between IFN-based therapy and 28-day mortality using Cox regression model with treatment as a time-dependent covariate.

Results
The study cohort included 222 patients, of whom 68 (28%) received IFN-based therapy. Antiviral therapy was started at a median of 5 days (3–6 days) from symptoms onset in the IFN group vs. 6 days (4–7 days) for the FPV group, P <0.0001. IFN-based therapy was associated with a lower 28-day mortality as compared to FPV (6 (9%) vs. 18 (12%)), adjusted hazard ratio [aHR] (95% Cl) = 0.27 (0.08–0.88)). No difference in hospitalization duration between the 2 groups, 9 (7–14) days vs. 9 (7–13) days, P = 0.732 was found. IFN treated group required less use of systemic corticosteroids (57%) as compared to FPV (77%), P = 0.005 after adjusting for disease severity and other confounders. Patients in the IFN treated group were more likely to have nausea and diarrhea as compared to FPV group (13%) vs. (3%), P = 0.013 and (18%) vs. (3%), P<0.0001, respectively.

Conclusion
Early IFN-based triple therapy was associated with lower 28-days mortality as compared to FPV.
Screening for SARS-CoV-2 by RT-PCR: Saliva or nasopharyngeal swab? Rapid review and meta-analysis
Authors: Ibrahimi Nusaïbah , Delaunay-Moisan Agnès , Hill Catherine , Le Teuff Gwénaël , Rupprecht Jean-François , Thuret Jean-Yves , Chaltiel Dan , Potier Marie-Claude 
Published: June 2021

Background
Diagnosis of COVID-19 in symptomatic patients and screening of populations for SARS-CoV-2 infection require access to straightforward, low-cost and high-throughput testing. The recommended nasopharyngeal swab tests are limited by the need of trained professionals and specific consumables and this procedure is poorly accepted as a screening method In contrast, saliva sampling can be self-administered.

Methods
In order to compare saliva and nasopharyngeal/oropharyngeal samples for the detection of SARS-CoV-2, we designed a meta-analysis searching in PubMed up to December 29th, 2020 with the key words “(SARS-CoV-2 OR COVID-19 OR COVID19) AND (salivary OR saliva OR oral fluid)) NOT (review[Publication Type]) NOT (PrePrint[Publication Type])” applying the following criteria: records published in peer reviewed scientific journals, in English, with at least 15 nasopharyngeal/orapharyngeal swabs and saliva paired samples tested by RT-PCR, studies with available raw data including numbers of positive and negative tests with the two sampling methods. For all studies, concordance and sensitivity were calculated and then pooled in a random-effects model.

Findings
A total of 377 studies were retrieved, of which 50 were eligible, reporting on 16,473 pairs of nasopharyngeal/oropharyngeal and saliva samples. Meta-analysis showed high concordance, 92.5% (95%CI: 89.5–94.7), across studies and pooled sensitivities of 86.5% (95%CI: 83.4–89.1) and 92.0% (95%CI: 89.1–94.2) from saliva and nasopharyngeal/oropharyngeal swabs respectively. Heterogeneity across studies was 72.0% for saliva and 85.0% for nasopharyngeal/oropharyngeal swabs.

Interpretation
Our meta-analysis strongly suggests that saliva could be used for frequent testing of COVID-19 patients and “en masse” screening of populations.
Continuous glucose monitoring in obese pregnant women with no hyperglycemia on glucose tolerance test
Authors: Rahmi Rosa Maria , de Oliveira Priscila , Selistre Luciano , Rezende Paulo Cury , Pezzella Gabriela Neuvald , dos Santos Pâmela Antoniazzi , Vergani Daiane de Oliveira Pereira , Madi Sônia Regina Cabral , Madi José Mauro 
Published: June 2021

Objective
The objective of the present study was to compare 24-hour glycemic levels between obese pregnant women with normal glucose tolerance and non-obese pregnant women.

Methods
In the present observational, longitudinal study, continuous glucose monitoring was performed in obese pregnant women with normal oral glucose tolerance test with 75 g of glucose between the 24th and the 28th gestational weeks. The control group (CG) consisted of pregnant women with normal weight who were selected by matching the maternal age and parity with the same characteristics of the obese group (OG). Glucose measurements were obtained during 72 hours.

Results
Both the groups were balanced in terms of baseline characteristics (age: 33.5 [28.7–36.0] vs. 32.0 [26.0–34.5] years, p = 0.5 and length of pregnancy: 25.0 [24.0–25.0] vs. 25.5 [24.0–28.0] weeks, p = 0.6 in the CG and in the OG, respectively). Pre-breakfast glycemic levels were 77.77 ± 10.55 mg/dL in the CG and 82.02 ± 11.06 mg/dL in the OG (p<0.01). Glycemic levels at 2 hours after breakfast were 87.31 ± 13.10 mg/dL in the CG and 93.48 ± 18.74 mg/dL in the OG (p<0.001). Daytime blood glucose levels were 87.6 ± 15.4 vs. 93.1 ± 18.3 mg/dL (p<0.001) and nighttime blood glucose levels were 79.3 ± 15.8 vs. 84.7 ± 16.3 mg/dL (p<0.001) in the CG and in the OG, respectively. The 24-hour, daytime, and nighttime values of the area under the curve were higher in the OG when compared with the CG (85.1 ± 0.16 vs. 87.9 ± 0.12, 65.6 ± 0.14 vs. 67.5 ± 0.10, 19.5 ± 0.07 vs. 20.4 ± 0.05, respectively; p<0.001).

Conclusion
The results of the present study showed that obesity in pregnancy was associated with higher glycemic levels even in the presence of normal findings on glucose tolerance test.
Rappresentare la violenza di genere: Sguardi femministi tra critica, attivismo e scrittura, Marina Bettaglio, Nicoletta Mandolini and Silvia Ross (eds) (2018)
Authors: Anatrone Sole 
Published: June 2021

Review of: Rappresentare la violenza di genere: Sguardi femministi tra critica, attivismo e scrittura, Marina Bettaglio, Nicoletta Mandolini and Silvia Ross (eds) (2018)
Milan: Mimesis Edizioni, 596 pp.,
ISBN 978-8-85755-426-6, p/bk, €26.60, epub €19.99
Study on the application of a steam-foam drive profile modification technology for heavy oil reservoir development
Authors: Liu Yong , Zhao Fajun , Wu Yongxin , Xu Tianxiao , Zhu Guangmeng 
Published: June 2021

Abstract
This paper introduces a steam-foam drive profile modification technology for heavy oil development in Block Qi40 based on an in-depth study of the characteristics of heavy oil reservoir and cross flow characteristics of injected steam in Block Qi40 of Liaohe Oilfield. The performance evaluation was carried out indoors for foaming agents. Influencing factors affecting profile modification and foam injection mode selection are studied. The results show that the CX-4 foaming agent system has excellent foaming properties and foam stability at 300°C. The plugging pressure difference of core can be increased by more than 15 times at 240°C. When a 0.5 PV foaming agent system is injected, the oil displacement efficiency can reach more than 68%. The optimal concentration of the foaming agent is 0.5% and the change of resistance factor is the largest in the range of oil saturation between 15 and 20%. Foam has better plugging ability in high permeability and large pores. Furthermore, after field application effect analysis, it confirms that the steam-foam profile modification technology has an obvious effect on enhancing oil recovery.
Robust Iterative Solvers for Gao Type Nonlinear Beam Models in Elasticity
Authors: Borsos Benjámin , Karátson János 
Published: June 2021

Abstract
The goal of this paper is to present various types of iterative solvers: gradient iteration, Newton’s method and a quasi-Newton method, for the finite element solution of elliptic problems arising in Gao type beam models (a geometrical type of nonlinearity, with respect to the Euler–Bernoulli hypothesis).
Robust behaviour, i.e., convergence independently of the mesh parameters, is proved for these methods, and they are also tested with numerical experiments.
Analysis on vegetation cover changes and the driving factors in the mid-lower reaches of Hanjiang River Basin between 2001 and 2015
Authors: Zhan Yunjun , Fan Jiemeng , Meng Tingting , Li Zhongwu , Yan Yan , Huang Jiejun , Chen Di , Sui Lintong 
Published: June 2021

Abstract
The mid-lower reaches of the Hanjiang River Basin, located in the core of economic development in Hubei Province, is an integral part of the Yangtze River Economic Belt. In recent years, the watershed ecosystem has become more sensitive to climate changes and human activities, thus affecting the regional vegetation cover. To maintain a stable watershed ecosystem, it is critical to analyze and evaluate the vegetation change and its response to temperature, precipitation, and human activities in this region. This study, based on the trend analysis, partial correlation analysis, and residual analysis, evaluated the change characteristics of vegetation cover as well as the corresponding driving factors in the basin from 2001 to 2015. The results showed that (1) the overall spatial pattern of vegetation cover in the study area was “high in the west and north, lower on both sides of Hanjiang River, and lowest in the center and southeast,” and the pattern changed parabolically with the increasing elevation. (2) Over the 15 years, vegetation cover in the basin showed an increasing trend, and the increased and decreased areas were 90.72 and 9.23%, respectively. (3) The response of vegetation cover to climatic factors varies greatly depending on the increasing elevation. That is, the lag effect under the impact of temperature disappeared gradually, while it became more evident under the impact of precipitation. (4) On the whole, human activities had a positive effect on the regional vegetation cover. The negative effect in the areas around the Nanyang Basin and the positive effect in most parts of the Jianghan Plain were gradually decreased.
Structural deformation characteristics of the Lower Yangtze area in South China and its structural physical simulation experiments
Authors: Li Xiao , Hu Qiuyuan , Dong Dawei , Guo Shaobin 
Published: June 2021

Abstract
The analysis of structural deformation characteristics in the Lower Yangtze area of South China is of great significance to petroleum exploration and development in this area. Based on the geological and geophysical data, the structural deformation characteristics of the Lower Yangtze area are systematically discussed. Structural physical simulation experiments are further conducted to model the typical structural deformation systems and to discuss their dynamic mechanism. The results show that the hedging system is characterized by “asymmetric opposite hedging in the south and north” of the study area. The structural deformation on the northwest of the hedging system mainly occurred in the Middle-Late Triassic and was controlled by southeaster compression in the Indo-Chinese Period. The deformation of southeastern side of the hedging system mainly occurred in Middle-Late Jurassic and was controlled by northwester strong compression in the early period of the Yanshanian Movement. According to the development and evolution sequence of the hedging structure system in the Lower Yangtze area, Wuxi area has weak structural deformation and has not undergone intensive transformation in later periods. Also, the other factors of petroleum accumulation, including the source rock, reservoir, and sealing conditions, are superior, which make a potential area for exploration.
Chorioamnionitis after premature rupture of membranes in nulliparas undergoing labor induction: prostaglandin E2 vs. oxytocin
Authors: Gulersen Moti , Zottola Cristina , Li Xueying , Krantz David , DiSturco Mariella , Bornstein Eran 
Published: June 2021

Abstract

Objectives
To assess the risk of chorioamnionitis in nulliparous, term, singleton, vertex (NTSV) pregnancies with premature rupture of membranes (PROM) and an unfavorable cervix undergoing labor induction with either prostaglandin E2 (PGE2) or oxytocin only.

Methods
Retrospective cohort of NTSV pregnancies presenting with PROM who underwent labor induction with either PGE2 (n=94) or oxytocin (n=181) between October 2015 and March 2019. The primary outcome of chorioamnionitis was compared between the two groups. Statistical analysis included Chi-squared and Wilcoxon rank-sum tests, as well as logistic regression. For time to delivery, a Cox proportional hazard regression was used to determine the hazard ratio (HR) and adjusted HR (aHR).

Results
Baseline characteristics were similar between the two groups. Cervical ripening with PGE2 was associated with an increased rate of chorioamnionitis (18.1 vs. 6.1%; aOR 4.14, p=0.001), increased neonatal intensive care unit admissions (20.2 vs. 9.9%; aOR 2.4, p=0.02), longer time interval from PROM to delivery (24.4 vs. 17.9 h; aHR 0.56, p=<0.0001), and lower incidence of meconium (7.4 vs. 14.4%; aOR 0.26, p=0.01), compared to the oxytocin group.

Conclusions
Based on our data, the use of oxytocin appears both superior and safer compared to PGE2 in NTSV pregnancies with PROM undergoing labor induction.
A review of extraction, analytical, and advanced methods for the determination of neonicotinoid insecticides in environmental water matrices
Authors: Selahle Shirley Kholofelo , Mpupa Anele , Nomngongo Philiswa Nosizo 
Published: June 2021

AbstractNeonicotinoid insecticides are widely used to kill and prevent unwanted insects from attacking growing crops. Extensive use of insecticides in various compartments of the environment has led to adverse effect on the health of living organisms. Several analytical methodologies have been reported for extraction and quantification of neonicotinoid insecticides in various matrices. The analytical detection techniques range from traditional to modern or state of the art quantification methods. The traditional analytical techniques include gas chromatography and high-performance liquid chromatography. These methods require extensive sample pretreatment before identification, separation, and quantification of target analytes. Advanced detection techniques refer to the sensor technologies based on optical, biorecognition, molecular imprinted polymers chemical, and piezoelectric. In this review, a summary and explanation of the various traditional analytical and advanced methodologies for extraction, separation, detection, and quantification of neonicotinoid insecticides residue in water samples have been discussed.
Consumption, personal income, financial wealth, housing wealth, and long-term interest rates: a panel cointegration approach for 50 US states
Authors: Kontana Dimitra , Fountas Stilianos 
Published: June 2021

Abstract
This study investigates the long-run and short-run relationship between consumption, income, financial and housing wealth, and a long-term interest rate for the 50 US states. Using an updated set of quarterly data from 1975 to 2018, we perform panel cointegration analysis allowing for cross-sectional dependence. We obtain the following results. First, there is strong evidence for cointegration among consumption and its determinants. Second, estimates of the housing wealth and financial wealth elasticity of consumption range from 0.072 to 0.115 and 0.044 to 0.080, respectively. Finally, Granger causality tests show that there is a bidirectional short-term causality between per capita consumption, income, and financial wealth in the short run and between all the variables in the long run.
A Feminist Geopolitics of Technology
Authors: Jack Margaret , Avle Seyram 
Published: June 2021

This article proposes a feminist geopolitics of technology framework that analyzes the connections between global politics and techno-empires through the lens of feminist scholarship. This framework has three dimensions: (1) grounding in place, (2) attention to everyday surviving and thriving, and (3) community. We draw on two long-term, community-oriented ethnographic research engagements in Cambodia and Ghana to illustrate how this approach might be used. This framework provides a resource for scholars to make sense of the contrasts between dominant narratives and lived experiences, particularly encouraging more sensitive and generative approaches to analyzing the conditions and dimensions of a shifting geopolitics of technology. In writing stories of caring, thriving, and grounded alternatives, we hope to foster and support initiatives that encourage personal agency and living the full human experience amid inequality and structural violence.