bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self-Compensating Co-Magnetometer vs. Spin-Exchange Relaxation-Free Magnetometer: Sensitivity To Nonmagnetic Spin Couplings
Authors: Padniuk Mikhail , Kopciuch Marek , Cipolletti Riccardo , Wickenbrock Arne , Budker Dmitry , Pustelny Szymon 
Published: July 2021

Abstract
Searches for pseudo-magnetic spin couplings require implementation of techniques capable of sensitive detection of such interactions. While Spin-Exchange Relaxation Free (SERF) magnetometry is one of the most powerful approaches enabling the searches, it suffers from a strong magnetic coupling, deteriorating the pseudo-magnetic coupling sensitivity. To address this problem, here, we compare, via numerical simulations, the performance of SERF magnetometer and noble-gas-alkali-metal co-magnetometer, operating in a so-called self-compensating regime. We demonstrate that the co-magnetometer allows reduction of the sensitivity to low-frequency magnetic fields without loss of the sensitivity to nonmagnetic couplings. Based on that we investigate the responses of both systems to the oscillating and transient spin perturbations. Our simulations reveal about five orders of magnitude stronger response to the neutron pseudo-magnetic coupling and about three orders of magnitude stronger response to the proton pseudo-magnetic coupling of the co-magnetometer than those the SERF magnetometer. Different frequency responses of the co-magnetometer to magnetic and nonmagnetic perturbations enables differentiation between these two types of interactions. This outlines the ability to implement the co-magnetometer as an advanced sensor for the Global Network of Optical Magnetometer for Exotic Physics searches (GNOME), aiming at detection of ultra-light bosons (e.g., axion-like particles).
Bumble bee queen pheromones are context-dependent
Authors: Orlova Margarita , Amsalem Etya 
Published: July 2021

Abstract
Queen pheromones have long been studied as a major factor regulating reproductive division of labor in social insects. Hitherto, only a handful of queen pheromones were identified and their effects on workers have mostly been studied in isolation from the social context in which they operate. Our study examined the importance of behavioral and social context for the perception of queen semiochemicals by bumble bee workers. Our results indicate that a mature queen’s semiochemicals are capable of inhibiting worker reproduction only when accompanied by the queen’s visual presence and the offspring she produces, thus, when presented in realistic context. Queen’s chemistry, queen’s visual presence and presence of offspring all act in synergy to regulate worker reproduction, but none of these elements produces an inhibitory effect on its own. Our findings highlight the necessity to reconsider what constitutes a queen pheromone and suggest a new approach to the study of chemical ecology in social insects.
In Vivo Antidiabetic Efficacy, Mineral Element Composition, and Qualitative Phytochemistry of the Aqueous Leaf Extracts of Pentas zanzibarica (Klotzsch.) Vatke and Olea europaea subspecies africana (Mill.)
Authors: Moriasi Gervason Apiri , Kibiti Cromwell Mwiti , Ngugi Mathew Piero 
Published: July 2021

Abstract
Persistent hyperglycaemia is the hallmark of diabetes and is accountable for the devastating complications, which cause high morbidity and mortality. Conventional anti-diabetic agents are only palliative and characterised with limited efficacy, adverse effects, high costs, inaccessibility, prompting the need for better alternatives. Therefore, we investigated the in vivo hypoglycaemic activities, elemental composition, and qualitative phytochemistry of the aqueous leaf extracts of P. zanzibarica and O. europaea subspecies africana as potential sources of affordable, safer, accessible, and potent anti-diabetic therapies. In vivo hypoglycaemic activities of the studied plant extracts were evaluated at three dose levels of 50, 100, and 150 mg/Kg body weight (bw) in Alloxan-induced hyperglycaemic Swiss albino mice. The elemental composition of the plant extracts was analysed using the energy dispersive x-ray fluorescence spectroscopy (EDXRF System) and the atomic absorption spectrometry (AAS). Qualitative phytochemical screening was done following standard procedures. In this study, the aqueous leaf extract of P. zanzibarica, significantly (p<0.05) reduced alloxan-induced hyperglycaemia in mice from 163.26±2.24 mg/dL (at 0h) to 52.12±1.16 mg/dL (at the 4th h) at a dose of 50 mg/Kg body weight, 166.98±1.56 mg/dL (at 0h) to 48.90±1.40 mg/dL (at 4th h) at a dose of 100 mg/Kg body weight, and 168.64±2.96 mg/dL (at 0h) to 42.46±1.80 mg/dL (at 4th h) at a dose of 150 mg/Kg body weight, respectively. Similarly, the aqueous leaf extract of O. europaea subspecies africana significantly (p<0.05) reduced hyperglycaemia from 165.74±3.66 mg/dL (at 0h) to 65.26±1.46 mg/dL (at the 4th h) at a dose of 50 mg/Kg body weight, 158.14±3.49 mg/dL (at 0h) to 53.68±1.48 mg/dL (at the 4th h) at a dose of 100 mg/Kg body weight, and from 161.66±2.19 mg/dL (at 0h) to 44.48±1.35 mg/dL (at the 4th h) at a dose of 150 mg/Kg body weight, respectively Furthermore, the extracts contained chromium (Cr), zinc (Zn), magnesium (Mg), among other elements, and phytochemicals like phenols, flavonoids, and alkaloids, among others. Generally, the studied plant extracts exhibited significant hypoglycaemic efficacy in alloxan-induced hyperglycaemic mice, indicating their antidiabetic potential, and possess pharmacologically active phytochemicals and valuable minerals.
WITHDRAWN: A new Fe3O4/CuO/AC Nanocomposite for Imidacloprid Removal: Characterization, Optimization, and Adsorption Modeling
Authors: Parsaie Amrollah , Rahbar Nadereh , Baezat Mohamadreza 
Published: July 2021

Abstract
A new magnetic adsorbent (Fe3O4/CuO/AC) composed of magnetite (Fe3O4) and copper oxide (CuO) nanoparticles Impregnated with activated carbon (AC) has been fabricated and used for the first time to remove imidacloprid (IMCP) insecticide from the aqueous solutions. This composite was characterized using field emission scanning electron microscopy, Fourier transform infrared spectroscopy, x-ray diffraction, energy dispersive x-ray diffraction, and vibrating sample magnetometer. The main influential factors such as the solution pH, the adsorbent amount, temperature, agitating time, and initial pesticide concentration were also tested to evaluate the optimized condition. Based on the results obtained from isotherm and kinetic modeling, the adsorption mechanism of IMCP on Fe3O4/CuO/AC is a combination of physisorption and chemisorption phenomena. The experimental data fitted best to the Freundlich isotherm model revealing the presence of heterogeneous sites for IMCP adsorption. Besides, the kinetics results revealed that the adsorption process well fitted with pseudo-second-order model, implying that the chemisorption was determining step in adsorption process. Thermodynamic results showed the spontaneous and exothermic nature of the adsorption process. Under optimal conditions (pH 7; contact time, 10 min; initial pesticide concentration, 10 mg L-1), IMCP removal efficiency was 99.6%, indicating the excellent ability of Fe3O4/CuO/AC nanocomposite for the adsorption of this pesticide from water solutions.
A modular U-Net for automated segmentation of X-ray tomography images in composite materials
Authors: Bertoldo João Paulo Casagrande , Ferrandière Etienne Decencière , Ryckelynck David , Proudhon Henry 
Published: July 2021

Abstract
X-ray Computed Tomography (XCT) techniques have evolved to a point that high-resolution data can be acquired so fast that classic segmentation methods are prohibitively cumbersome, demanding automated data pipelines capable of dealing with non-trivial 3D images. Deep learning has demonstrated success in many image processing tasks, including material science applications, showing a promising alternative for a human-free segmentation pipeline. In this paper a modular interpretation of U-Net (Modular U-Net) is proposed and trained to segment 3D tomography images of a three-phased glass fiber-reinforced Polyamide 66. We compare 2D and 3D versions of our model, finding that the former is slightly better than the latter. We observe that human-comparable results can be achievied even with only 10 annotated layers and using a shallow U-Net yields better results than a deeper one. As a consequence, Neural Network (NN) show indeed a promising venue to automate XCT data processing pipelines needing no human, adhoc intervention.
Portada e indice
Authors: Reyes Sebastian Camilo 
Published: July 2021

La Revista Criterios, Cuadernos de Ciencias Jurídicas y Política Internacional, presenta su ejemplar número 13-2 con las líneas temáticas en:
- Dinámicas de violencia y exceso en el uso de la fuerza por parte de la fuerza pública
- Problemáticas acerca de la legitimidad en la fuerza pública
- La militarización y securitización de las instituciones civiles
- Violencia, conflicto y paz en Colombia
Private emptiers' perspectives on the regulation of faecal sludge emptying services in Sub-Saharan Africa
Authors: Lerebours Alix , Scott Rebecca , Sansom Kevin 
Published: July 2021

AbstractUsing a two-round Delphi study, 15 faecal sludge emptiers from 11 cities in Sub-Saharan Africa have expressed views on the regulation of faecal sludge emptying services. Their responses identify the regulatory mechanisms in place where they operate, their opinions of these mechanisms, and prioritisation of those considered most useful to enable safe emptying services for all urban residents. All respondents (100%) support regulation, with 80% finding the regulation they encounter useful. However, all also state that regulatory mechanisms should extend beyond only rules and sanctions, to incorporate support, incentives and pro-poor mechanisms. This study is the first to provide a first-hand account of Sub-Saharan African private emptiers' willingness to accept clear regulation. In that regard, regulation should be flexible and adapted to the context in order to facilitate fair competition, safe and satisfactory service for customers and workers alike, and to alleviate the public and environmental health risks.
Knowledge, attitudes and practices (KAP) on fecal sludge resource recovery and reuse in Dar es Salaam, Tanzania
Authors: Mkude Isabela T. , Gabrielsson Sara , Kimwaga Richard 
Published: July 2021

Abstract
Resource recovery and reuse (RRR) of fecal sludge (FS) from onsite sanitation systems describes the concept of turning human waste into valuable end products. However, studies on peoples' perceptions of FS-derived products are still limited. Guided by the knowledge, attitudes and practices framework, and data from a survey of 395 households, focus group discussions and key informant interviews, this article explores how residents in three unplanned settlements of Dar es Salaam, Tanzania view FS RRR (FS-RRR). Results indicate that residents' knowledge about FS-RRR is moderately low. Moreover, residents generally have negative attitudes toward using FS-derived products, except for those not directly consumed, such as biogas or FS-briquettes. Additionally, only a few residents have engaged in any FS-RRR practices. We conclude that to increase local acceptance of FS-RRR will require significant efforts by a multitude of actors, not least to dispel myths linked to human waste, but also to raise awareness and demonstrate the benefits and safety of FS-derived products. The Tanzanian government must take the lead in this process and should start by prioritizing the improvement of fecal sludge management (FSM) to enable such a shift.
Association of Body Mass Index and Dysmenorrhea: A Systematic Review and Meta-Analysis of Observational Studies
Authors: Bahrami Nasim , Alimoradi Zainab , Hajnasiri Hamideh , Allen Kelly-Ann 
Published: July 2021

Background:Dysmenorrhea or menstrual pain is a commonly occurring disorder in reproductive age women with different proposed risk factors, including body mass index.Objective:This study aimed to investigate the association between body mass index and dysmenorrhea using a systematic review and meta-analysis approach.Methods:Academic databases Scopus, PubMed CENTRAL, Embase, ProQuest, Science Direct, and ISI Web of Science, and Google Scholar- were searched systematically from inception until the end of February 2020. Original researches published in English with observational designs were included to examine the association of body mass index and dysmenorrhea as the primary outcome. Newcastle Ottawa scale was used to evaluate the methodological quality of the studies. Due to the variation of reported data across studies, all data were converted to Pearson correlation coefficient and corrected by transforming to fisher’s Z score. Then meta-analysis was performed using a random-effects model with Der-Simonian and Laird method.Results:A total of 61 studies with 57,079 participants, of which 25,044 reported having dysmenorrhea, were included. While publication bias was probable, results were corrected using the fill & trim method. The updated results based on this method showed that pooled Fisher’s z-score for the association of body mass index and dysmenorrhea was 0.04 (95% CI: -0.009; 0.085). The pooled estimated effect size of correlation showed a trivial to slight correlation between body mass index and dysmenorrhea with corrected fisher’s z score of 0.12 (95% CI: 0.08; 0.17, I2=95%).Conclusion:No association was found between body mass index and dysmenorrhea. But this finding should be interpreted with caution considering the included studies' limitations.
Using Visual Guides to Reduce Virtual Reality Sickness in First-Person Shooter Games: Correlation Analysis
Authors: Seok Kwang-Ho , Kim YeolHo , Son Wookho , Kim Yoon Sang 
Published: July 2021

Background
The virtual reality (VR) content market is rapidly growing due to an increased supply of VR devices such as head-mounted displays (HMDs), whereas VR sickness (reported to occur while experiencing VR) remains an unsolved problem. The most widely used method of reducing VR sickness is the use of a rest frame that stabilizes the user's viewpoint by providing fixed visual stimuli in VR content (including video). However, the earth-fixed grid and natural independent visual background that are widely used as rest frames cannot maintain VR fidelity, as they reduce the immersion and the presence of the user. A visual guide is a visual element (eg, a crosshair of first-person shooter [FPS]) that induces a user's gaze movement within the VR content while maintaining VR fidelity, whereas there are no studies on the correlation of visual guide with VR sickness.

Objective
This study aimed to analyze the correlation between VR sickness and crosshair, which is widely used as a visual guide in FPS games.

Methods
Eight experimental scenarios were designed and evaluated, including having the visual guide on/off, the game controller on/off, and varying the size and position of the visual guide to determine the effect of visual guide on VR sickness.

Results
The results showed that VR sickness significantly decreased when visual guide was applied in an FPS game. In addition, VR sickness was lower when the visual guide was adjusted to 30% of the aspect ratio and positioned in the head-tracking direction.

Conclusions
The experimental results of this study indicate that the visual guide can achieve VR sickness reduction while maintaining user presence and immersion in the virtual environment. In other words, the use of a visual guide is expected to solve the existing limitation of distributing various types of content due to VR sickness.
Communicating Guideline Recommendations Using Graphic Narrative Versus Text-Based Broadcast Screensavers: Design and Implementation Study
Authors: Sinnenberg Lauren , Umscheid Craig A , Shofer Frances S , Leri Damien , Meisel Zachary F 
Published: July 2021

Background
The use of graphic narratives, defined as stories that use images for narration, is growing in health communication.

Objective
The aim of this study was to describe the design and implementation of a graphic narrative screensaver (GNS) to communicate a guideline recommendation (ie, avoiding low-value acid suppressive therapy [AST] use in hospital inpatients) and examine the comparative effectiveness of the GNS versus a text-based screensaver (TBS) on clinical practice (ie, low-value AST prescriptions) and clinician recall.

Methods
During a 2-year period, the GNS and the TBS were displayed on inpatient clinical workstations. The numbers of new AST prescriptions were examined in the four quarters before, the three quarters during, and the one quarter after screensavers were implemented. Additionally, an electronic survey was sent to resident physicians 1 year after the intervention to assess screensaver recall.

Results
Designing an aesthetically engaging graphic that could be rapidly understood was critical in the development of the GNS. The odds of receiving an AST prescription on medicine and medicine subspecialty services after the screensavers were implemented were lower for all four quarters (ie, GNS and TBS broadcast together, only TBS broadcast, only GNS broadcast, and no AST screensavers broadcast) compared to the quarter prior to implementation (odds ratio [OR] 0.85, 95% CI 0.78-0.92; OR 0.89, 95% CI 0.82-0.97; OR 0.87, 95% CI 0.80-0.95; and OR 0.81, 95% CI 0.75-0.89, respectively; P<.001 for all comparisons). There were no statistically significant decreases for other high-volume services, such as the surgical services. These declines appear to have begun prior to screensaver implementation. When surveyed about the screensaver content 1 year later, resident physicians recalled both the GNS and TBS (43/70, 61%, vs 54/70, 77%; P=.07) and those who recalled the screensaver were more likely to recall the main message of the GNS compared to the TBS (30/43, 70%, vs 1/54, 2%; P<.001).

Conclusions
It is feasible to use a graphic narrative embedded in a broadcast screensaver to communicate a guideline recommendation, but further study is needed to determine the impact of graphic narratives on clinical practice.
Indian Active Pharmaceutical Ingredient (API) Industry- An overview on Challenges, Opportunities & Regulatory prerequisites
Authors: Singh Shefali , Popli Harvinder 
Published: July 2021

Active pharmaceutical ingredient is a chemical compound which is most important raw material to formulate a finished pharmaceutical medicine and has a pharmacological effect. India has a long history of being heavily dependent for these raw materials on China due to one major reason i.e. Low manufacturing cost. But overdependence of APIs imports from China brought various liabilities to India including supply chain disruption and price hikes during pandemic, leading to shortage of various important APIs/KSMs. This COVID 19 widespread has solidly put the center of our country on being “Atma Nirbhar”. And this activity had brought out the strengths, market patterns and opportunities in five divisions counting Healthcare, which are basic from country’s point of view. In view of changing geo-political situation and recalibrated trade arrangement, it is crucial that India become self-reliant within the generation of APIs and KSMs, which is why decreasing the Import reliance for Active pharmaceutical ingredients (APIs) & Key starting materials (KSMs) particularly from china has been focused upon with the assistance of productive linked incentive scheme (PLIS) passed by Department of pharmaceuticals, Government of India to thrive Indian API industry.
Hence, this review highlights the current state of Indian API industry, evaluates challenges, opportunities give suggestions for moving forward for self-sufficiency of APIs as well as centers on current regulatory prerequisites for Active pharmaceutical Ingredients.
COVID-19 IN MEXICO: PREPARING FOR FUTURE PANDEMICS
Authors: Loyola Benjamín Ruiz 
Published: July 2021

The COVID-19 pandemic from 2019 onwards leaves us with an imperative lesson: we must be vigilant and ready to act once a new pandemic occurs. We must have scientific teams ready to develop basic and applied research at a rapid pace; trained and qualified medical teams to act immediately, with all personal and institutional security measures at their disposal; governments determined to put aside political differences to achieve the common welfare and a population informed about prevention measures, ready to abide by the indications of experts. We review the scientific opinions (and the lack of it) from the pandemics administrators in Mexico, in morning press conferences of the Mexican president, in evening press conferences by the pandemics manager and in written and electronic media, and we talk about how this is expected to be achieved in the short term, to avoid the many mistakes that have been done so far.

Peer Review History:
Received: 1 May 2021; Revised: 15 June; Accepted: 29 June, Available online: 15 July 2021
Academic Editor: Ahmad Najib, Universitas Muslim Indonesia, Makassar, Indonesia, ahmad.najib@umi.ac.id
UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.
Received file: Reviewer's Comments:
Average Peer review marks at initial stage: 5.5/10
Average Peer review marks at publication stage: 7.0/10
Reviewer(s) detail:
Prof. Dr. Hassan A.H. Al-Shamahy, Sana'a University, Yemen, shmahe@yemen.net.ye
Dr. Bilge Ahsen KARA, Ankara Gazi Mustafa Kemal Hospital, Turkey, ahsndkyc@gmail.com
Dr. Muhammad Zahid Iqbal, AIMST University, Malaysia, drmmziqbal@gmail.com
Dr. Vanina Doris Edo’o, University of Yaounde I, Yaounde, Cameroun, vanina_edoo@yahoo.com
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