bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reliability analysis of boom of new lifting equipment based on improved wolf swarm algorithm
Authors: Guan Huashen , Tang Bo , Zhou Xiangman , Tan Haoxin , Liang Zhuwei , Li Ye , Sun Guofu , Zhang Junjie 
Published: September 2022

AbstractAiming at the low accuracy or inability to solve the problem when the traditional reliability optimization method deals with the practical engineering reliability analysis problem, this paper proposes a structural reliability analysis method using the improved wolf swarm algorithm (IWSA). Firstly, the reliability optimization mathematical model is established with the minimum reliability index as the objective function and the limit state equation as the equality constraint. Then the augmented multiplier method is used to transform the constrained optimization mathematical model into an unconstrained optimization mathematical model. Finally, IWSA is used to solve the problem. The proposed method is applied to a numerical example and an engineering example. The computation results of the proposed method in solving the numerical example are compared with the Monte Carlo simulation (MCS), which verifies that the proposed method in this paper has good calculation accuracy. The maximum deformation under the working condition is used as the target to establish a limit state function, and the reliability index is obtained by the proposed method combining with the finite element analysis software, which provides a certain theoretical guiding significance for the reliability analysis of engineering structures.
Reduced Steroid Synthesis in the Follicular Fluid of MTHFR 677TT Mutation Carriers: Effects of Increased Folic Acid Administration
Authors: Pavlik Roman , Hecht Stephanie , Noss Ulrich , Soldin Offie P. , Mendu Rao D. , Soldin Steven J. , Lohse Peter , Thaler Christian J. 
Published: September 2022

Abstract
Objective To compare steroid profiles in the follicular fluid (FF) from women homozygous for the methylenetetrahydrofolate reductase (MTHFR) 677C>T mutation and wildtype controls
and to correlate it with the folic acid administration scheme applied at the time of oocyte retrieval.
Design Retrospective single center study.
Subjects and Methods Infertile patients treated by using assisted reproductive techniques were genotyped routinely for the MTHFR 677C>T mutation. In 2006 they had received folic
acid supplementation doses of 400 µg daily per os. This group was designated Group-400 (n = 10). From 2008 onwards, all of our infertility patients received a daily dose of 800 µg folic acid
per os. Women from this group were designated Group-800 (n = 28). FF were collected and a panel of steroid hormones (estradiol, estrone, estriol, cortisol, progesterone, 17-OH progesterone,
testosterone, androstenedione, aldosterone, DHEA, and DHEA-S) was measured by isotope dilution liquid chromatography-tandem mass spectrometry employing atmospheric pressure photo ionization
(APPI).
Results In Group-400, the FF hormone profile confirmed a significant reduction of estradiol in homozygous 677TT carriers (0.52 ± 0.08-fold, exact p = 0.032) and for the first time
also revealed significantly reduced estriol concentrations in these individuals (0.54 ± 0.05-fold, p = 0.016), as compared to wildtype controls. In Group-800, no significant differences were
found for concentrations of any of the steroid hormones between homozygous 677TT carriers and wildtype controls.
Conclusions The current findings support and extend previous reports on reduced concentrations of specific steroid hormones in follicular fluids of homozygous MTHFR 677C>T
mutation carriers. The restoration of the FF hormone profile by elevated-dose folic acid supplementation might impact performing ART in infertile women with the MTHFR 677TT-genotype. Further
adequately powered studies are necessary to verify our finding and to demonstrate the clinical effect of enhanced folic supplementation on ovarian function.
One-Step Simultaneous Synthesis of an Industrially Important Rubber Accelerator and a Lubricant Additive by Disulfide Bond Contraction
Authors: Xu Hao-Xing , Fu Shun-Guo , Tao Yu-Hong , Wang Xiao , Luo Peng-Hao , Song Zhi-Qiang , Zhang Yan , Zhang Zhi-Liang 
Published: September 2022

AbstractA sustainable and atom-economic synthesis of the widely used rubber accelerator tetramethylthiuram monosulfide (TMTM) from tetramethylthiuram disulfide is reported. Triphenyl phosphite (TPPi) is employed as a green reductant to replace the usual sodium cyanide, which poses a severe safety risk due to its high toxicity. The new process proceeds smoothly under mild conditions with an excellent yield of TMTM. This single-step one-pot method also has the potential for producing the industrially important lubricant additive O,O,O-triphenyl thiophosphate as a high-added-value byproduct.
Potentised Black Lead in the Treatment of Polycystic Ovarian Syndrome: An Evidence-Based Case Report
Authors: Rajachandrasekar Bhuvaneswari , Sunny Anita 
Published: September 2022

AbstractPolycystic ovarian syndrome (PCOS) is a common condition among females of the childbearing age group. The exact cause of PCOS is unknown and increased levels of male hormones are believed to cause anovulation. It can cause several long-term complications, including infertility, metabolic disorders and cardiovascular disorders. PCOS is diagnosed based on Rotterdam diagnostic criteria. Globally, the estimated prevalence of PCOS ranges between 5 and 15%. The prevalence in south India is 6%. In this case report, a case of PCOS successfully treated with individualised medicine Graphites is given. The improvement is evident from symptomatic relief and decreased ovarian volume on ultrasonography abdomen and pelvis after 9 months of homeopathic treatment. Subsequently, the patient conceived. Thus, homeopathic medicine was found effective in the treatment of this PCOS case.
Hailey-Hailey Disease Treated with Individualised Homoeopathy—An Evidence-Based Case Report
Authors: Dastagiri P. , Pratap Nirmala 
Published: September 2022

AbstractHailey-Hailey disease (HHD) is a rare autosomal dominant skin disorder presented as blistering dermatosis with recurrent erythematous plaques, leading to erosions, fissures and vegetations seen in the skin folds. Prevalence of this disease occurs in 1 to 4 per 100,000 affected between third and fourth decade, mostly either under-reported or misdiagnosed. Under standard conventional treatment, recurrence and remissions are typical. Therefore, it affects the quality of life compared with other skin disorders. However, with the individualised homoeopathic medicine, Psorinum, this rare case was treated without topicals; no recurrence of the complaints and adverse effects were observed in 1 year of follow-up. Furthermore, changes in the dermatology life quality of life questionnaire score from 20 (at baseline) to zero have been noticed; the modified Naranjo criteria for homeopathy total score was +9 out of +13, providing evidence attributed by the intervention. This case report reinforces that individualised homoeopathic intervention is beneficial in rare skin disorders like HHD, and pooling such data will develop future research concepts in this area.
Risk Assessment of Red Cell Transfusion in Congenital Heart Disease
Authors: Zürn Christoph , Höhn René , Hübner David , Umhau Markus , Kroll Johannes , Kari Fabian A. , Humburger Frank , Maier Sven , Stiller Brigitte 
Published: September 2022

Abstract
Background The storage time of packed red blood cells (pRBC) is an indicator of change in the product's pH, potassium, and lactate levels. Blood–gas analysis is a readily available bedside tool on every intensive care ward to measure these factors prior to application, thus facilitating a calculated decision on a transfusion's quantity and duration.Our first goal is to assess the impact of storage time on pH, potassium, and lactate levels in pRBC. The influence of those parameters in the transfused children will then be evaluated.
Methods In this retrospective study, we conducted blood–gas analyses of pRBC units before they were administered over 4 hours to neonates, infants, and children in our pediatric cardiac intensive care ward. All patients underwent regular blood–gas analyses themselves, before and after transfusion.
Results We observed a highly significant correlation between the storage time of pRBC units and a drop in pH, as well as an increase in potassium and lactate of stored red cells (p< 0.0001). Median age of recipients with a complete blood–gas dataset was 0.1 (interquartile range [IQR] = 0.0–0.7) years; median pRBC storage duration was 6 (IQR = 5–8) days. Further analyses showed no statistically significant effect on children's blood gases within 4 hours after transfusion, even after stratifying for pRBC storage time ≤7 days and >7 days.
Conclusion Stored red blood cells show a rapid decrease in pH and increase in potassium and lactate. Slow transfusion of these units had no adverse effects on the recipients' pH, potassium, and lactate levels.
Italians locked down: people’s responses to early COVID-19 pandemic public health measures
Authors: Romano Virginia , Ancillotti Mirko , Mascalzoni Deborah , Biasiotto Roberta 
Published: September 2022

AbstractAt the beginning of 2020, the widespread diffusion of SARS-CoV-2 rapidly became a worldwide priority. In Italy, the government implemented a lockdown for more than two months (March 9–May 18). Aware of the uniqueness of such an experience, we designed an online qualitative study focused on three main dimensions: daily life during the lockdown, relationships with others, and public health issues. The aim was to gain insights into people’s experiences of, and attitudes toward, the changes caused by public health measures implemented as a response to the COVID-19 pandemic. We conducted 18 semi-structured interviews with Italian residents. The interviewees were recruited through mediators using purposive sampling to obtain a balanced sample with respect to age, gender, education, and geographical residence. Interviews were analyzed through qualitative content analysis. The lockdown affected a variety of aspects of people’s life, resulting in a significant re-shaping of daily activities and relationships. These changes, which entailed both positive and negative aspects, were met with resilience. Even though public health measures were generally considered acceptable and adequate, they were also perceived to generate uncertainty and stress as well as to reveal tensions within the public health system. When tasked with imagining a scenario with saturated intensive care units and the need for selection criteria, respondents showed a tendency to dodge the question and struggled to formulate criteria. Media and news were found to be confusing, leading to a renewed critical attitude toward information. The findings shed some light on the impact of the lockdown on people’s daily life and its effects on relationships with others. Furthermore, the study contributes to an understanding of people’s reasons for, and capacity to respond to, emergency public health measures.
Psychosocial indicators of individual behavior during COVID 19: Delphi approach
Authors: Abbas Wijdan , Eltayeb Shahla 
Published: September 2022

AbstractThe COVID-19 pandemic revealed the weakness of the health care system to incorporate indicators of human behavior in the rapid response to the virus. This study aims to establish consensus on the psychosocial indicators of COVID-19 preventive behaviors during the initial phase of the outbreak in Arab countries. This qualitative study used a combined scoping review of the literature to develop the 24 psychosocial indicators and the Delphi approach with a panel of 27 experts from nine Arab countries to achieve a consensus on preventive behavior indicators. The most robust agreement with an average rating of at least 4 was found for five social indicators including Belief System with an average rating (5). Income Status average rating (4.9). Family Commitment average rating (4). Faith average rating (4). Kinship System average rating (3.9). Four psychological indicators were identified namely Self-Efficacy with an average rating of (5). Perception of Hazard with an average rating of (4.5). Motivation with an average rating of (4.5). Stigma with an average rating of (4.2). The nine indicators provide a strong base for redesigning pandemic control interventions. The Delphi study demonstrates the feasibility of a participatory approach during the outbreak of COVID-19. Moreover, future interventions need to accommodate individual psychological and social determinants to increase adherence and decrease resistance to public health guidelines.
Single motherhood in Ghana: analysis of trends and predictors using demographic and health survey data
Authors: Ayebeng Castro , Dickson Kwamena Sekyi , Seidu Abdul-Aziz , Amo-Adjei Joshua 
Published: September 2022

AbstractThe rising rate of single-mother families has gained scholarly and policy attention. Understanding the dynamics in the socio-economic and demographic transformations that have led to the relatively high single-mother families in Ghana is important to advance policy and intervention to mitigate adverse effects of single motherhood. The study sought to examine the trends and predictors of single motherhood in Ghana from 1993 to 2014. This paper was based on data from the last five waves of the Ghana Demographic and Health Survey. Descriptive statistics of proportions with Chi-square test and binary logistic regression were used to assess individual and contextual factors associated with single motherhood in Ghana. The proportion of single motherhood increased significantly over the period from 14.1% in 1993 to 19.5% in 2014. Premarital birth emerged as the major pathway to single motherhood. Among individual factors, the likelihood of single motherhood declines as age at first sex [OR = 0.58; 95% CI = 0.48,0.70] and first birth [OR = 0.43; CI = 0.32,0.59] were 25 years and above. Also, Contraceptive users were less likely to be single mothers than non-users. Contextually, women who profess Islam [OR = 0.58; 95% CI = 0.46, 0.74] were less likely to be single mothers than women who had no religious affiliation. We observed that, after accounting some important factors, women with higher economic status—richer [OR = 0.76; 95% CI = 0.59,0.96] and richest [OR = 0.57; 95% CI = 0.31,0.56] were less likely to be single mothers than poorest women. The findings give an impression of single mothers being over-represented among economically poor women. Policies and programmes meant to mitigate adverse effects of single motherhood should also focus on empowering single mothers and their children as a way of alleviating poverty and improve the well-being of children in this family type, as well as enhance Ghana’s capacity to attain the Sustainable Development Goal 1, particularly target 1.2.
Intrinsically enhanced anomalous Hall conductivity and Hall angle in Sb-doped magnetic Weyl semimetal Co3Sn2S2
Authors: Shen Jianlei , Zhang Shen , Liang Tingting , Wang Jing , Zeng Qingqi , Wang Yibo , Wei Hongxiang , Liu Enke , Xu Xiaohong 
Published: September 2022

The emerging magnetic topological materials bring a new opportunity to obtain giant transverse transport effects. In this work, a greatly enhanced anomalous Hall effect (AHE) is obtained in electron-doped magnetic Weyl semimetal Co3Sn2−xSbxS2, showing a maximum anomalous Hall conductivity (AHC) of ∼1600 Ω−1 cm−1 and an anomalous Hall angle of ∼26%. Based on the qualitative and quantitative analysis of scaling models, the enhanced AHC comes from the intrinsic mechanism related to the Berry curvature of the topological band structures. A small amount of electron doping still makes the EF around the gapped nodal rings. At the same time, disorder doping leads to the splitting and broadening of bands, which enhance the Berry curvature and intrinsic AHC. Our work provides an important guidance for the design and development of large AHE in magnetic topological materials.
Analogy in action
Authors: Glaz Adam 
Published: September 2022

Abstract
Analogy as structural similarity is assumed to play a fundamental role in human cognition. This study is
concerned with analogies between spatiotemporal orientation, linguistically-coded perspectival frames, and cultural
experience. Two major types of orientational frames, and thus of cultural perspectival frames, are postulated:
egocentric and allocentric. Those, however, may also be combined into complex hybrid configurations. A case study of a
sample of press discourse is offered, where the egocentric, allocentric, and hybrid perspectival frames are shown to
be interwoven. Ultimately, it is hypothesised that the frames can be extrapolated onto the level of conventionalised,
communal perspectives, i.e. cultural models. Analogy is thus shown to be a powerful, robust cognitive mechanism
operating across a variety of domains.
Collective identity construction in the covid-19 crisis
Authors: Zhang Cun , Liu Guiling , Zhang Shuang 
Published: September 2022

Abstract
Since the pandemic broke out in 2020, China has widely presented the covid crisis in its mass media and actively
constructed collective identity thereof to mobilize medical workers, unify political stances, boost domestic solidarity, and
promote international support. This paper combines the Discourse-Historical Approach and a multimodal perspective to investigate
how the Chinese state-run news agency People’s Daily discursively achieves these purposes on TikTok. A
combination of qualitative and quantitative methods is used to present the high-frequency topoi of justifying the crisis and
referential and predicational strategies of shaping collective identity within, which can fall into four dimensions: positive
Self, negative Self, negative Others, and positive Others.
The linguistic resources can be intensified/mitigated by visual-aural ensembles, which can draw the audience’s attention and
arouse their emotional attachments. This study also summarizes the embedded values in the discourses and situates them in
socio-political contexts.
Integrated assessment of the supply–demand relationship of ecosystem services in the Loess Plateau during 1992–2015
Authors: Wang Dan , Liang Youjia , Peng Shouzhang , Yin Zhangcai , Huang Jiejun 
Published: September 2022

ABSTRACT
Landscape alterations and ecosystem services (ES) are crucial elements that affect the socio-ecological development of ecologically fragile regions. To provide scientific support for the land-use planning and regional ecological restoration to achieve sustainable development goals (SDGs) in the Loess Plateau from 1992 to 2015, this study proposes an integrated assessment framework for assessing the supply – demand match and equilibrium of ES combining potential relationships between landscape alterations, ES, and sustainable development at the county and regional scales. Results show that more than 85% of local counties have a supply – demand mismatch in terms of ecosystem services. Supply – demand distributions for provisioning and supporting services were relatively balanced compared to cultural services, which were imbalanced. Although the overall supply – demand relationship is relatively balanced because of the significant influence of ecological restoration, it shows an increasing trend toward imbalance as human – land conflict is prominent in some regions. SDGs emphasize on specific ES information such as ecosystem conservation, sustainable agriculture, and urban construction. Furtherly, positive impacts from landscape dynamics can improve the supply capacity of the ES and contribute to regional sustainability.
Spatial patterns and influencing factors of intraurban particulate matter in the heating season based on taxi monitoring
Authors: Liu Chong , Hu Yuanman , Chang Yu , Liu Miao , Xiong Zaiping , Chen Tan , Li Chunlin 
Published: September 2022

ABSTRACT

Urbanization has introduced a series of environmental problems worldwide, and particulate matter (PM) is one of the main threats to human health. Due to the lack of high-resolution, large-scale monitoring data, few studies have analyzed the intraurban spatial distribution pattern of PM at a fine scale. In this study, portable air monitors carried by five taxis were used to collect the concentrations of PM
1
, PM
2.5
and PM
10
for five months in Shenyang during the heating season. The results showed that high concentrations of PM were distributed in the suburbs, while relatively low concentration areas were found in the central area. Agricultural, industrial and development zones had higher concentration values among the eight observed types. The PM concentration exhibited strong spatial autocorrelation based on Moran’s I index analysis. Meteorological factors were the most important influencing factors of the three pollutants, and their total contribution rate accounted for more than 80% among the 13 factors according to boosted regression trees analysis. The taxi monitoring method we proposed was a more efficient and feasible method for monitoring urban air pollution and could obtain higher spatial-temporal resolution data at a lower cost to elucidate the region’s dynamic air pollution distribution patterns.
Cyclic spacetimes through singularity scattering maps. Plane-symmetric gravitational collisions
Authors: Le Floch Bruno , LeFloch Philippe G , Veneziano Gabriele 
Published: September 2022

Abstract
We study the plane-symmetric collision of two gravitational waves and describe the global spacetime geometry generated by this collision. We formulate the characteristic initial value problem for the Einstein equations, when Goursat data describing the incoming waves are prescribed on two null hypersurfaces. We construct a global solution representing a cyclic spacetime based on junction conditions associated with a prescribed singularity scattering map, as we call it. This amounts to a detailed analysis of the Goursat and Fuchsian initial value problems associated with singular hyperbolic equations, when junction conditions at interfaces are prescribed. We introduce a partition into monotonicity diamonds (that is, spacetime domains) and we construct the solution by concatenating domains across interfaces of timelike, null, or spacelike type.
On the intrinsically flat cosmological models in a lattice
Authors: Bittencourt Eduardo , Gomes Leandro G , Santos Grasiele B 
Published: September 2022

Abstract
In this manuscript we investigate the intrinsically flat (space-flat) spacetimes as viable cosmological models. We show that they have a natural geometric structure which is suitable to describe inhomogeneous matter distributions forming a periodic pattern throughout the space. We prove theorems for their local representation and for existence and uniqueness of the Einstein’s equations with these periodic boundary conditions. We also find an interesting class of exact solutions, which illustrates the applicability of such spacetimes in cosmology, with an early time behavior close to homogeneity and isotropy and a late time aspect with peaks and voids in the matter distribution.
Analysis of the regimes of feedback effects in quantum dot laser
Authors: Lu Ying , Hu Xiao , Tang Mingchu , Cao Victoria , Yan Jie , Wu Dingyi , Park Jae-Seong , Liu Huiyun , Xiao Xi , Chen Siming 
Published: September 2022

Abstract
We investigated the optical feedback effects on the static and dynamic characteristics of 1.3 μm quantum-dot (QD) Fabry–Pérot laser under reflection from −40 dB up to −8 dB. The onset of coherence collapse is determined as −14 dB from the optical and electrical spectra. Although the degradation in small signal modulation is reported above this critical feedback level, transmission operation with available eye diagram under higher feedback is demonstrated. Under 10 Gb s−1 modulation, there is no obvious degradation in eye diagram regarding the eye shape and extinction ratio up to feedback ratio of −8 dB. The higher feedback tolerance of QD laser under large signal modulation is attributed to the impact of gain compression. This high-speed feedback-resistant operation also indicates that QD laser is a promising light source for isolator-free photonic integrated circuits.