bluuebunny/crossref_metadata_2025 huggingface dataset:
A Semantic Model for Embracing Privacy as Contextual Integrity in the Internet of Things (Short Paper)
Authors: Ezennaya-Gomez Salatiel , Vielhauer Claus , Dittmann Jana
Published: February 2022

Due to the increasing number of complaints alleging privacy violations against companies to data protection authorities, the translation of business goals to system design goals and the subsequent consequences for customers’ privacy poses a challenge for many companies. For this reason, there is a need to bridge the economics of privacy and threats to privacy. To this end, our work relies on the concept of privacy as contextual integrity. This framework defines privacy as appropriate information flows subjected to social norms within particular social contexts or spheres. In this paper, we introduce a preliminary version of a semantic model which aims to relate and provide understanding on how well-established business goals may affect their customers’ privacy by designing IoT devices with permission access, data acquired by sensors, among other factors. Finally, we provide a use case application showing how to use the semantic model. The model aims to be an educational tool for professionals in business informatics during the modeling and designing process of a product which may gather sensitive data or may infer sensitive information, giving an understanding of the interaction of the product and its footprint with diverse actors (humans or machines). In the future, a further complete model of the presented may also target other groups, such as law enforcement bodies, as part of their educational training in such systems.
Sampling methods for renewable gases and related gases: challenges and current limitations
Authors: Arrhenius Karine , Francini Lorena , Büker Oliver
Published: February 2022

Renewable gases, hydrogen and biomethane can be used for the same applications as natural gas: to heat homes, power vehicles and generate electricity. They have the potential to contribute to the decarbonisation of the gas grid. Hydrogen blending with existing natural gas pipelines is also proposed as a means to increase the performance of renewable energy systems. Carbon capture and storage (CCS) and carbon capture and utilisation (CCU) technologies can be an answer to the global challenge of significantly reducing greenhouse gas emissions. Due to production methods, these gases typically contain species in trace amounts that can negatively impact the equipment they come into contact with or pipelines when injected into the gas grid. It is therefore necessary to ensure proper (and stable) gas quality that meets the requirements set out in the relevant standards. The gas quality standards require the collection and transport of a representative gas sample from the point of use to the analytical laboratory; i.e., no compounds may be added to or removed from the gas during sampling and transport. To obtain a representative sample, many challenges must be overcome. The biggest challenge is material compatibility and managing adsorption risks in the sampling systems (sampling line and sampling vessels). However, other challenges arise from the need for flow measurement with non-pure gases or from the nature of the matrix. Currently, there are no conclusive results of short-term stability measurements carried out under gas purity conditions (suitable pressure, matrix, appropriate concentrations, simultaneous presence of several species).
Repeated drying and rewetting cycles accelerate bacterial growth recovery after rewetting
Authors: Leizeaga Ainara , Meisner Annelein , Rousk Johannes , Bååth Erland
Published: February 2022

Two patterns of bacterial growth response upon drying and rewetting (DRW) of soils have previously been identified. Bacterial growth can either start increasing immediately after rewetting in a linear fashion (“type 1” response) or start increasing exponentially after a lag period (“type 2” response). The effect of repeated DRW cycles was studied in three soils with different response patterns after a single DRW cycle (“type 1”, “type 2” with a short lag period and “type 2” with a long lag period). The soils were exposed to seven DRW cycles, and respiration and bacterial growth were monitored after 1, 2, 3, 5, and 7 cycles. Exposure to repeated DRW shifted the bacterial growth response from a “type 2” to a “type 1” pattern, resulting in an accelerated growth recovery to a pre-disturbance growth rate. Bacterial growth in soils that initially had a “type 1” response also tended to recover faster after each subsequent DRW cycle. The respiration patterns after DRW also indicated the same transition from a “type 2” to a “type 1” pattern. Our results show that exposure to repeated DRW cycles will shape the bacterial response to future DRW cycles, which might be mediated by a shift in species composition, a physiological adjustment, evolutionary changes, or a combination of the three.
Converted laparoscopic distal pancreatectomy: is there an impact on patient outcome and total cost?
Authors: Casadei Riccardo , Ingaldi Carlo , Ricci Claudio , De Raffele Emilio , Alberici Laura , Minni Francesco
Published: February 2022

Purpose

Recent studies have reported worse outcomes of converted laparoscopic distal pancreatectomy (CLDP) with respect to total laparoscopic (TLDP) and open (ODP). The aim of the study was to evaluate the impact of conversion on patient outcome and on total cost.

Methods

Patients requiring a conversion (CLDP) were compared with both TLDP and ODP patients. The relevant patient- and tumour-related variables were collected for each patient. Both intra and postoperative data were extracted. Propensity score matching (PSM) analysis was carried out to equate the groups compared.

Results

Two hundred and five patients underwent DP, 105 (51.2%) ODPs, 81 (39.5%) TLDPs, and 19 (9.3%) CLDPs. After PSM, 19 CLDPs, 38 TLDPs, and 38 ODPs were compared. Patients who underwent CLDP showed a significantly longer operative time (P < 0.001), and an increase in blood loss (P = 0.032) and total cost (P = 0.034) with respect to TLDP, and a significantly longer operative time (P < 0.001), less frequent postoperative morbidity (P = 0.050), and a higher readmission rate (P = 0.035) with respect to ODP.

Conclusion

Total laparoscopic pancreatectomy was superior regarding operative findings and total costs with respect to CLDP; ODP showed a higher postoperative morbidity rate and a lower readmission rate with respect to CLDP. However, the reasons for the readmission of patients who underwent CLDP were mainly related to postoperative pancreatic fistula (POPF) grade B which is usually due to pancreas texture. Thus, the majority of distal pancreatectomies can be started using a minimally invasive approach, performing an early conversion if necessary.
Polynomisches Kontaktmodell zur Abbildung pastösen Materialverhaltens in DEM-Simulationen
Authors: Platzer Felix , Fimbinger Eric
Published: February 2022

Zur Simulation pastöser Materialien in der DEM wird ein Kontaktmodell vorgestellt, welches beim Kontaktverlust zweiter ursprünglich in Kontakt befindlicher Partikel (diskrete Elemente) eine anziehende Kraft (Kohäsionskraft) basierend auf einem polynomischen Ansatz bildet. Dieses folglich kapillare Kontaktmodell ist somit in der Lage, pastöse Materialien für Industrie orientierte DEM-Simulationen nachzubilden.

Zum Abgleich der hierbei modellierten Materialien wird der Slump-Test als standardisierte und weit verbreitete Methode vorgestellt, wobei über Parametervariation ein Abgleich des im Labor festgestellten Verhaltens des pastösen Materials mit jenem Verhalten des digitalen Modells, aufgebaut als Partikelansammlung in der DEM-Simulation, durchgeführt wird.
A local singularity analysis for the Ricci flow and its applications to Ricci flows with bounded scalar curvature
Authors: Buzano Reto , Di Matteo Gianmichele
Published: February 2022

We develop a refined singularity analysis for the Ricci flow by investigating curvature blow-up rates locally. We first introduce general definitions of Type I and Type II singular points and show that these are indeed the only possible types of singular points. In particular, near any singular point the Riemannian curvature tensor has to blow up at least at a Type I rate, generalising a result of Enders, Topping and the first author that relied on a global Type I assumption. We also prove analogous results for the Ricci tensor, as well as a localised version of Sesum’s result, namely that the Ricci curvature must blow up near every singular point of a Ricci flow, again at least at a Type I rate. Finally, we show some applications of the theory to Ricci flows with bounded scalar curvature.
P2Y1 agonist HIC in combination with androgen receptor inhibitor abiraterone acetate impairs cell growth of prostate cancer
Authors: Le Hien Thi Thu , Murugesan Akshaya , Candeias Nuno R. , Ramesh Thiyagarajan , Yli-Harja Olli , Kandhavelu Meenakshisundaram
Published: February 2022

P2Y receptors belong to the large superfamily of G-protein-coupled receptors and play a crucial role in cell death and survival. P2Y1 receptor has been identified as a marker for prostate cancer (PCa). A previously unveiled selective P2Y1 receptor agonist, the indoline-derived HIC (1-(1-((2-hydroxy-5-nitrophenyl)(4-hydroxyphenyl)methyl)indoline-4-carbonitrile), induces a series of molecular and biological responses in PCa cells PC3 and DU145, but minimal toxicity to normal cells. Here, we evaluated the combinatorial effect of HIC with abiraterone acetate (AA) targeted on androgen receptor (AR) on the inhibition of PCa cells. Here, the presence of HIC and AA significantly inhibited cell proliferation of PC3 and DU145 cells with time-dependent manner as a synerfistic combination. Moreover, it was also shown that the anticancer and antimetastasis effects of the combinratorial drugs were noticed through a decrease in colony-forming ability, cell migration, and cell invasion. In addition, the HIC + AA induced apoptotic population of PCa cells as well as cell cycle arrest in G1 progression phase. In summary, these studies show that the combination of P2Y1 receptor agonist, HIC and AR inhibitor, AA, effectively improved the antitumor activity of each drug. Thus, the combinatorial model of HIC and AA should be a novel and promising therapeutic strategy for treating prostate cancer.
Insider accounts of dyslexia from research mathematicians
Authors: Lambert Rachel , Harriss Edmund
Published: February 2022

Within educational research, dyslexia and other disabilities are typically conceptualized as deficits. The theory of neurodiversity encourages researchers to conceptualize cognitive differences as natural forms of human diversity with unique sets of challenges and strengths. Using neurodiversity as our theoretical framework, we analyze the experiences of five research mathematicians with dyslexia as told through personal narratives to find common strengths and challenges for dyslexic thinkers at the highest level of mathematics. We report on 4 themes: (1) highly visual and intuitive ways of mathematical thinking, (2) issues with language and translation between forms, (3) issues with memorization of mathematical facts and procedures, and (4) resilience as a strength of dyslexia that matters in mathematics. We use our participants’ insights to explore how neurodiversity, a theory of cognitive disability developed by and for neurodiverse people, could expand opportunities for research. We call for mathematics educators to consider the strengths and challenges of dyslexic learners, as well as valuing expertise from insider perspectives.
Mitigation of groundwater iron-induced clogging by low-cost bioadsorbent in open loop geothermal heat pump systems
Authors: Fujita Claudia , Akhtar M. Shahbaz , Hidaka Ray , Nishigaki Makoto
Published: February 2022

Green energy production from natural resources can reduce emissions of greenhouse gases and pollutants from burning of fossil fuels in power plants. Recently, groundwater geothermal energy (GGE) is harnessed by deploying closed- and open-loop heat systems. In open-loop geothermal heat pump systems (OLGHPS), groundwater is reinjected into aquifer after harnessing GGE. Nevertheless, OLGHPS face noxious clogging issue because of elusive chemistry (corrosion or precipitation) of chemical species, principally of iron (Fe), in pipes and aquifers during reinjection process via oxidation reactions. Plethora of filtering materials are available for removal of ions, but these are quite expensive and environmentally unsafe. More recently, low-cost, eco-friendly, green filtering materials gain much interest. These materials can remove ions from groundwater that can minimize clogging in heat exchange systems, injection wells, and aquifer. In the present study, three filtering materials, i.e., wooden charcoal (biomaterial), yamazuna fine sand, and volcanic ash, were tested to estimate their Fe removal capacity. In upward flow mode with minimum oxygen-water contact, serial column (each with 6 ports) experiments were conducted under constant pressure head and constant velocity conditions. Columns were connected to well water having dissolved Fe concentration of 10.85 mg L−1. Sampling was done at the well, column inlets, column’s six sampling ports and column outlets, and samples were analyzed for Fe by atomic absorption spectroscopy. Related tested parameters include pH, EC, temperature, turbidity, porosity, particle diameter, and dissolved oxygen. Volcanic ash showed less Fe removal, while sand filter showed substantial reduction in velocity. Biomaterial (wooden charcoal) displayed higher Fe adsorption capacity compared to other materials that can be ascribed to its surface chemistry and functional groups. Under different flow rates, maximum Fe content of 3.5 g Fe kg−1 dry charcoal was obtained. By considering a safety factor and influence of groundwater composition, it is possible to design a biomaterial-based iron filter system to minimize Fe-induced chemical clogging in OLGHPS which is an eco-friendly, green energy source.
Fractional boundary value problems
Authors: D’Ovidio Mirko
Published: February 2022

We study some functionals associated with a process driven by a fractional boundary value problem (FBVP for short). By FBVP we mean a Cauchy problem with boundary condition written in terms of a fractional equation, that is an equation involving time-fractional derivative in the sense of Caputo. We focus on lifetimes and additive functionals characterizing the boundary conditions. We show that the corresponding additive functionals are related to the fractional telegraph equations. Moreover, the fractional order of the derivative gives a unified condition including the elastic and the sticky cases among the others.
Serum sex hormone-binding globulin levels are reduced and inversely associated with intrahepatic lipid content and saturated fatty acid fraction in adult patients with glycogen storage disease type 1a
Authors: Simons P. I. H. G. , Valkenburg O. , Telgenkamp I. , van der Waaij K. M. , de Groot D. M. , Veeraiah P. , Bons J. A. P. , Derks T. G. J. , Schalkwijk C. G. , Schrauwen-Hinderling V. B. , Stehouwer C. D. A. , Brouwers M. C. G. J.
Published: February 2022

Purpose

De novo lipogenesis has been inversely associated with serum sex hormone-binding globulin (SHBG) levels. However, the directionality of this association has remained uncertain. We, therefore, studied individuals with glycogen storage disease type 1a (GSD1a), who are characterized by a genetic defect in glucose-6-phosphatase resulting in increased rates of de novo lipogenesis, to assess the downstream effect on serum SHBG levels.

Methods

A case–control study comparing serum SHBG levels in patients with GSD1a (n = 10) and controls matched for age, sex, and BMI (n = 10). Intrahepatic lipid content and saturated fatty acid fraction were quantified by proton magnetic resonance spectroscopy.

Results

Serum SHBG levels were statistically significantly lower in patients with GSD1a compared to the controls (p = 0.041), while intrahepatic lipid content and intrahepatic saturated fatty acid fraction—a marker of de novo lipogenesis—were significantly higher in patients with GSD1a (p = 0.001 and p = 0.019, respectively). In addition, there was a statistically significant, inverse association of intrahepatic lipid content and saturated fatty acid fraction with serum SHBG levels in patients and controls combined (β: − 0.28, 95% CI: − 0.47;− 0.09 and β: − 0.02, 95% CI: − 0.04;− 0.01, respectively).

Conclusion

Patients with GSD1a, who are characterized by genetically determined higher rates of de novo lipogenesis, have lower serum SHBG levels than controls.
The Relationship Between Fuzzy Soft and Soft Topologies
Authors: Alcantud José Carlos R.
Published: February 2022

This paper attempts to forward both soft topology and fuzzy soft topology with a pioneering analysis of their mutual relationships. With each soft topology we associate a parameterized family of fuzzy soft topologies called its t-pushes. And each fuzzy soft topology defines a parameterized family of soft topologies called its t-throwbacks. Different soft topologies produce different t-pushes. But we prove by example that not all fuzzy soft topologies are characterized by their t-throwbacks. The import of these constructions is that some properties stated in one setting can be investigated in the other setting. Our conclusions should fuel future research on both fuzzy soft topology and soft topology.
How Outsourcing Social Services to NGOs Bolsters Political Trust in China: Evidence from Shanghai
Authors: Song Esther Eunhou
Published: February 2022

The Chinese Communist Party has recently acknowledged its attempts to bolster good governance by outsourcing public and social service functions to social organizations—non-profit organizations, either created by relevant government bureaus, developed through non-profit incubators, or voluntarily created civil society groups. Do these services gender political trust for the party-state? Using matching methods on an original survey data collected in communities in Shanghai, this article reveals two important findings. (1) Service efficacy—the internal belief that one can affect the content of the services show strong correlation with political trust and the relationship is stronger than that between service quality and political support. (2) There is strong evidence for credit transfer—whilst accountability for these services is attributed to grassroots actors and there is strong correlation between service efficacy and political support, political support increases only for the central government level. The results show how the new programs of social service outsourcing and incorporation of non-governmental organizations in service provision can increase support for the party-state.
Injury Rates, Patterns, Mechanisms, and Risk Factors Among Competitive Youth Climbers in the United States
Authors: Barrile Ashley M. , Feng Sing-Yi , Nesiama Jo-Ann , Huang Craig
Published: February 2022

Introduction

Competitive rock climbing is a fast-growing sport. Despite comprehensive reviews on adult climbing-related injuries, few pediatric-specific reviews exist, and studies exclusively on competitive youth climbers are needed. Objectives of this study include 1) estimating the injury rate (IR); 2) describing injury patterns and mechanisms; and 3) identifying injury risk factors in competitive youth climbers.

Methods

The study design was cross-sectional. Competitive youth climbers were included. Participants completed an anonymous questionnaire to document climbing injuries over the preceding 12 mo. Demographic data and data regarding injuries were collected. The IR was calculated. Analyses were performed to assess association between injury and multiple variables. Multivariate logistic regression was completed for significant variables to control for exposure time.

Results

The IR was 2.7 injuries per 1000 climbing hours. Hand/Finger injuries were most frequent; chronic overuse was the most common etiology. Injury severity was low overall. Risk factors significantly associated with climbing injury were climbing discipline (bouldering > sport/lead climbing), return to climbing while still in pain, finger taping, higher number of hours climbed per session and per year, climbing at higher bouldering difficulties, and unsupervised climbing.

Conclusions

The IR in competitive youth climbers was found to be lower than previously reported but higher than suggested by adult studies or those that exclude chronic injuries. Findings are consistent with types, severity, and mechanisms reported in other studies. Modifiable risk factors, especially return to climbing while still injured, warrant further prospective investigation.
“Ptychoparioid” trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada
Authors: Sundberg Frederick A. , Webster Mark
Published: February 2022

Early “ptychoparioid” trilobites are likely to play a crucial role in determining the currently unresolved phylogenetic relationships among the numerous Cambrian libristomate clades. However, such phylogenetic analyses are hindered by the fact that many species and genera of early “ptychoparioids” are known from very limited material and are typically defined only on cranidial features. Herein, we report new “ptychoparioid” assemblages from the Saline Valley Tongue, Harkless Formation at Clayton Ridge, Nevada. These middle to upper Dyeran Stage (Cambrian Series 2, Stage 4) assemblages contain well-preserved early “ptychoparioids” that are represented by articulated exoskeletons as well as isolated cranidia, rostral plates, librigenae, thoracic segments, and pygidia, which together provide morphological details for the complete or nearly complete exoskeleton of three new genera and four new species: Anebocephalus silverpeakensis n. gen. n. sp.; Coenoides scholteni n. gen. n. sp.; Harklessaspis rasettii n. gen. n. sp.; and H. parvigranulosus n. gen. n. sp. Pending a formal phylogenetic analysis, it is deemed preferable to assign these taxa to new genera rather than to shoehorn them in to potentially ill-diagnosed existing genera. These new genera are compared to the Cambrian Series 2 taxa Crassifimbra and Eokochaspis, and the Miaolingian Series taxon Elrathina, which are similar in morphology and known from sclerites other than just cranidia.

Also documented in this study are the “ptychoparioids” Crassifimbra walcotti, Cr.? sp. A, Cr. sp. B, and “ptychoparioid” spp. A, B, C, and D from the Saline Valley Tongue and the overlying Mule Spring Limestone and lowermost Emigrant Formation.

UUID: http://zoobank.org/864d4005-2676-4f3f-b676-911efde7d263
Policy Legacies, Sociopolitical Coalitions, and the Limits of the Right Turn in Latin America: The Argentine Case in Comparative Perspective
Authors: Vommaro Gabriel , Gené Mariana
Published: February 2022

After more than a decade of leftist governments in Latin America, the left turn began to reverse course, giving way to the rise of rightist political forces. Even moderate right-wing governments undertook reforms to reduce public spending. This agenda, however, encountered important obstacles. Focusing on the 2017 Argentine pension reform and based on extensive qualitative research, including in-depth interviews with key players, the findings here uphold previous work on the strength of policy legacies in opposition to promarket reforms. This study contributes to the existing theory by showing that protests against retrenchment favor the formation of opposition coalitions only in places where left-leaning governments had established inroads with organized popular sectors, maintaining relationships of coordination and collaboration. In these cases, the cost of specific reforms can jeopardize the broader project of retrenchment.
Do citizens vote against incumbents who permit local immigration? Evidence from the Mariel Boatlift
Authors: Thompson Daniel M.
Published: February 2022

Does exposure to a mass migration event cause citizens to vote against incumbents? I offer an answer to this question by studying one of the largest acute periods of migration in the US, the case of the 1980 Mariel Boatlift during which roughly 125,000 Cubans fled to South Florida. I estimate the change in support for Republican presidential candidates in Miami using the synthetic control method and fixed effects regressions with a panel of county-level and archival precinct-level election results. I find that, while Miami voters dramatically increased their support of the Republican candidate in 1980, this shift was not a local consequence of the Boatlift. Instead, the evidence suggests that Cuban support for Reagan was not a local Miami response to the Boatlift—it happened in Cuban communities throughout the US—but it was most noticeable in Miami because Miami had the largest Cuban population in the US even before the Boatlift. I also present evidence that this change in Cuban voting may have been specific to Reagan and not a broader shift against incumbents or toward Republicans. These findings suggest that, in this case, direct exposure to migration did not lead citizens to dramatically change their voting behavior.
Yield-limiting plant nutrients for maize production in northwest Ethiopia
Authors: Amare Tadele , Alemu Erkihun , Bazie Zerfu , Woubet Asmare , Kidanu Selamyihun , Alemayehu Beamlaku , Awoke Abrham , Derebe Assefa , Feyisa Tesfaye , Tamene Lulseged , Kerebh Bitewlgn , Wale Sefinew , Mulualem Aweke
Published: February 2022

The potential yield of improved maize varieties usually cannot be fully realised mainly due to inappropriate soil nutrient management practices in most parts of Ethiopia. Site-specific fertiliser recommendations are rarely used in the farming systems of Ethiopia. There is also a lack of data to develop or validate decision support tools for targeting specific crop production. A study was conducted for three consecutive rainy seasons (2016–2018) in the maize belt of the north-western parts of the Amhara National Regional State of Ethiopia. The objectives were to obtain the maximum achievable yield potential of maize, determine the most yield-limiting nutrients and create a database of maize responses to applied nutrients so that decision support tools could be developed for the study areas. Treatments were individual nutrients (nitrogen (N), phosphorus (P) and potassium (K)) and combinations of the three. In some treatments, NPK was also combined with sulphur, zinc, lime and compost. Two hybrid maize varieties (BH-540 and BH-660) adaptable to the study areas were used. BH-540 was used for the Mecha district, while BH-660 was used for the south Achefer, Jabitahnan–Burrie–Womberma districts. Maize yield increased by more than 50% due to fertiliser applications compared to without fertiliser. The study showed that the possibility of increasing maize productivity to more than 12 t ha-1for the study sites. The most yield-limiting nutrient in the study sites was N, followed by P; K was not a yield limiting. Without N the yield of both varieties was non-significant from the control (without added nutrients). Maize grain yield did not respond to application of lime, compost, zinc and sulphur. The result also showed very high variability across sites, indicating that it is important for policymakers, farmers and investors to consider site-specific fertiliser recommendations. Finally, a database containing intensive plant response to NPK for maize was generated and could be used as input in site-specific decision support tools development.
Association between female genital mutilation and girl-child marriage in sub-Saharan Africa
Authors: Ahinkorah Bright Opoku , Hagan John Elvis , Seidu Abdul-Aziz , Bolarinwa Obasanjo Afolabi , Budu Eugene , Adu Collins , Okyere Joshua , Archer Anita Gracious , Schack Thomas
Published: February 2022

Two commonly linked harmful practices that negatively impact the health of girls and women in sub-Saharan Africa, and threaten their development and quality of life, are female genital mutilation and girl-child marriage. The central focus of the study was to investigate the association between female genital mutilation and girl-child marriage in sub-Saharan Africa. Data from the most recent Demographic and Health Surveys of twelve sub-Sahara African countries were pooled. A total of 14,748 women aged 20–24 were included in the study. A multilevel logistic regression analysis was employed, with reported adjusted odds ratios (aORs) and associated 95% confidence intervals (CIs). The overall prevalence of FGM in the twelve countries was 52.19%, with the highest prevalence in Guinea (97.17%). The overall prevalence of girl-child marriage in the twelve countries was 57.96%, with the highest prevalence in Chad (78.06%). Women who had never experienced female genital mutilation were less likely to experience girl-child marriage (aOR=0.76, CI=0.71–0.82) compared with those who had ever experienced female genital mutilation. Age 24 (aOR=0.47, CI=0.43–0.52), secondary/higher level of education (aOR=0.31, CI=0.28–0.35), richest wealth quintile (aOR=0.56, CI=0.47–0.66), exposure to mass media (aOR=0.81, CI=0.74–0.88) medium community literacy level (aOR=0.63, CI=0.57–0.69) and low community socioeconomic status (aOR=0.67, CI=0.49–0.92) were found to be protective against girl-child marriage. The findings reveal that female genital mutilation is associated with girl-child marriage in sub-Saharan Africa. The continued practice will adversely affect the reproductive health outcomes of girls in the sub-region. Policies aimed at eliminating female genital mutilation and girl-child marriage should focus on compulsory basic education, poverty alleviation and increasing access to mass media. Further, campaigns should cover more communities with lower literacy levels and medium socioeconomic status.
Anatomical configurations of the optic canal in the sphenoid sinus in a Hispanic population: computed tomography based study
Authors: Treviño-Gonzalez J L , Santos-Santillana K M , Maldonado-Chapa F , Morales-Del Angel J A , Becerra-Jimenez J A
Published: February 2022

Objective

The prevalence of the optic canal anatomical variants across the sphenoid sinus varies widely among different ethnic groups. This study aimed to analyse the anatomical variants of the optic canal and their relationship to sphenoid sinus pneumatisation in a Hispanic population.

Method

A review of 320 sphenoid sinuses by high-resolution computed tomography was performed. DeLano's classification of the optic canal, presence of dehiscence, septa insertion, sphenoid sinus pneumatisation and presence of Onodi cells were established.

Results

Dehiscence of the optic canal was observed in 4.7 per cent (n =15) of the analysed sinuses. Type 4 and 3 optic canals were significantly more frequent among postsellar sphenoid sinuses than other patterns of sphenoid sinus pneumatisation (p =0.002 andp =0.018). A type 4 optic canal has a higher tendency to present inserted septum than other optic canal types (p =0.014).

Conclusion

This study described the optic canal variants in a Hispanic population, which complements existing literature addressing other ethnicities.
Toward a generalized developmental model of psychopathological liabilities and psychiatric disorders
Authors: Blanco Carlos , Wall Melanie M. , Hoertel Nicolas , Krueger Robert F. , Olfson Mark
Published: February 2022

Background

Most psychiatric disorders are associated with several risk factors, but a few underlying psychopathological dimensions account for the common co-occurrence of disorders. If these underlying psychopathological dimensions mediate associations of the risk factors with psychiatric disorders, it would support a trans-diagnostic orientation to etiological research and treatment development.

Method

An analysis was performed of the 2012–2013 National Epidemiologic Survey on Alcohol and Related Conditions III (NESARC-III), a US nationally representative sample of non-institutionalized civilian adults, focusing on respondents who were aged ⩾21 (n = 34 712). Structural equation modeling was used to identify the psychopathological dimensions underlying psychiatric disorders; to examine associations between risk factors, psychopathological dimensions and individual disorders; and to test whether associations of risk factors occurring earlier in life were mediated by risk factors occurring later in life.

Results

A bifactor model of 13 axis I disorders provided a good fit (CFI = 0.987, TLI = 0.982, and RMSEA = 0.011) including an overall psychopathology factor as measured by all 13 disorders and 2 specific factors, one for externalizing disorders and one for fear-related disorders. A substantial proportion of the total effects of the risk factors occurring early in life were indirectly mediated through factors occurring later in life. All risk factors showed a significant total effect on the general psychopathology, externalizing and fear-related factors. Only 23 of 325 direct associations of risk factors with psychiatric disorders achieved statistical significance.

Conclusion

Most risk factors for psychiatric disorders are mediated through broad psychopathological dimensions. The central role of these dimensions supports trans-diagnostic etiological and intervention research.
Multimodal meta-analysis of structural gray matter, neurocognitive and social cognitive fMRI findings in schizophrenia patients
Authors: Picó-Pérez Maria , Vieira Rita , Fernández-Rodríguez Marcos , De Barros Maria Antónia Pereira , Radua Joaquim , Morgado Pedro
Published: February 2022

Neuroimaging research has shown that patients with schizophrenia (SCZ) present brain structural and functional alterations, but the results across imaging modalities and task paradigms are difficult to reconcile. Specifically, no meta-analyses have tested whether the same brain systems that are structurally different in SCZ patients are also involved in neurocognitive and social cognitive tasks. To answer this, we conducted separate meta-analyses of voxel-based morphometry, neurocognitive functional magnetic resonance imaging (fMRI), and social cognitive fMRI studies. Next, with a multimodal approach, we identified the common alterations across meta-analyses. Further exploratory meta-analyses were performed taking into account several clinical variables (illness duration, medication status, and symptom severity). A cluster covering the dorsomedial prefrontal cortex (dmPFC) and the supplementary motor area (SMA), and the right inferior frontal gyrus (IFG), presented shared structural and neurocognitive-related activation decreases, while the right angular gyrus presented shared decreases between structural and social cognitive-related activation. The exploratory meta-analyses replicated to some extent these findings, while new regions of alterations appeared in patient subgroups with specific clinical features. In conclusion, we found task-specific correlates of brain structure and function in SCZ, which help summarize and integrate a growing literature.
‘Daddy-callin’ Mamas’ and ‘Jelly Beans’: sex work and ribaldry in the blues archive
Authors: Curtis Bruce
Published: February 2022

I present a thematic overview of sex work and ribaldry in recorded blues songs for the period c.1920–1942. My ambition is primarily documentary, to take up Paul Oliver's insistence that discussion of the blues must ultimately revolve around its ‘libidinous hub’ and to concretise Abbott and Seroff's characterisation of blues as ‘unabashedly licentious a music form as America has ever produced’. Ribald sex work songs are common in the blues archive, but have not been a focus of sustained study. A grasp of the significance of sex work provides a key to decoding creative wordplay, even as the relation between blues performers and real sex work must remain obscure.
Social justice and the judicial interpretation of international equal protection law
Authors: Altwicker Tilmann
Published: February 2022

Social justice is turning into an international concern. This development is a response to the continuous rise of socioeconomic inequality – the gap between the rich and the poor –growing in several OECD member states since the 1970s. International human rights law (IHRL) presently only establishes a weak normative framework regarding social justice. This article argues that the full potential of this framework has still not been activated by international human rights adjudication. There are several reasons for this: a complex history of ideas suggesting little common understanding of the notion of social justice, the focus of international human rights adjudication on individual rather than constitutional justice, and the priority of liberty rights over equality rights. Yet, the domination of the liberal over the social in international human rights adjudication has started to change. The article shows how the social justice concern is beginning to be incorporated into IHRL by judicial interpretation of international equal protection and non-discrimination law (international equal protection law, IEPL). Integrating the social justice concern into IEPL is a legitimate yet transformative step as it increases judicial discretion at the international level. More than many other human rights, socioeconomic equality is highly context-specific and depends on a complex factual assessment of the local circumstances. This exacerbates the institutional legitimacy challenge levelled against international human rights courts. However, the article argues that the legitimacy challenge can be alleviated by focusing more on procedural rather than a substantive international review.
Early childhood maltreatment and profiles of resilience among child welfare-involved children
Authors: Yoon Susan , Pei Fei , Logan Jessica , Helsabeck Nathan , Hamby Sherry , Slesnick Natasha
Published: February 2022

Given the high burden of child maltreatment, there is an urgent need to know more about resilient functioning among those who have experienced maltreatment. The aims of the study were to: 1) identify distinct profiles of resilience across cognitive, emotional, behavioral, and social domains in young children involved in the child welfare system; and 2) examine maltreatment characteristics and family protective factors in relation to the identified resilience profiles. A secondary analysis was conducted using data from the National Survey of Child and Adolescent Well-Being (NSCAW-II). Latent profile analysis was performed on a sample of 827 children aged 3–5 years (46% girls, Mean age = 3.96). Three distinct resilience profiles were identified: 1)low cognitive resilience(24%); 2)low emotional and behavioral resilience(20%); and 3)multidomain resilience(56%). Caregiver cognitive stimulation, no out-of-home placement, higher caregiver education level, older child age, and being a girl were associated with themultidomain resilienceprofile. The findings provide empirical support for the multifaceted nature of resilience and suggest that practitioners need to help children achieve optimal and balanced development by assessing, identifying, and targeting those domains in which children struggle to obtain competence.
Immediate maternal and fetal outcome following percutaneous mitral valve balloon commissurotomy: a 6-year single-center experience from sub-Saharan Africa
Authors: Sebah Mohammed Bedru , Mengistu Azene Dessie , Tadesse Kefelegn Dejene , Tekleab Atnafu Mekonnen
Published: February 2022

Background:

Mitral stenosis is the most common valvular heart disease during pregnancy. When severe, it leads to significant maternal and fetal morbidity and mortality. Percutaneous mitral valve balloon commissurotomy can be performed during pregnancy, and the present study aimed to describe the immediate maternal and fetal outcomes after percutaneous mitral valve balloon commissurotomy was done in a cohort of 23 pregnant patients with severe mitral stenosis in Addis Ababa, Ethiopia.

Methods:

Included in the current study were all pregnant mothers who had severe rheumatic mitral valve stenosis and who underwent percutaneous mitral valve balloon commissurotomy at the Cardiac Center of Ethiopia over 6-year period. Data were collected through chart abstraction using a structured proforma and then analysed using STATA version 13.0.

Result:

Median gestational age was 22 weeks and percutaneous mitral valve balloon commissurotomy was successful resulting in a significant increase in the mean mitral valve area of the group from 0.78 ± 0.20 cm2 to 1.89 ± 0.31 cm2 (p < 0.001). The mean mitral valve inflow gradient of the group was 23.95 ± 6.27 mmHg and 6.80 ± 2.44 mmHg, respectively, before and after the percutaneous mitral valve balloon commissurotomy procedure (p < 0.001). Post-procedure, there was no significant increment in mitral valve incompetence. The mean pulmonary artery pressure of the group decreased from 77.68 ± 23.19 mmHg to 42.31 ± 9.95 mmHg (p < 0.001). There was no fetal or maternal death following the procedure. Pregnancy ended at term gestation for 19/23 (82.6%) of the mothers and the mean birth weight of the neonates was 2800 g.

Conclusion:

Percutaneous mitral valve balloon commissurotomy procedure can safely be done for severe symptomatic rheumatic mitral stenosis in pregnancy in our setting.
Ears to the Ground: Socially engaged sound art as learning in process
Authors: Deluca Erik , Hausknecht Elana
Published: February 2022

Braiding sound–listening–learning (encouraged by composer Pauline Oliveros) with critical consciousness (inspired by educator Paulo Freire), the authors led a location-specific, socially engaged sound art project in Rhode Island (USA). The authors describe a style of socially engaged sound art that approaches the object of art as a dialogic process of learning.
Family child care home providers’ self-reported nutrition and physical activity practices, self-efficacy, barriers and knowledge: baseline findings from happy healthy homes
Authors: Sisson Susan B , Eckart Erin , Williams Bethany D , Patel Sarah M , Kracht Chelsea L , Davis Holly A , Ward Dianne S , Hildebrand Deana , Stoner Julie A , Stinner Emily , Kerr Kelly E , Salvatore Alicia
Published: February 2022

Objective:

Describe nutrition and physical activity practices, nutrition self-efficacy and barriers and food programme knowledge within Family Child Care Homes (FCCH) and differences by staffing.

Design:

Baseline, cross-sectional analyses of the Happy Healthy Homes randomised trial (NCT03560050).

Setting:

FCCH in Oklahoma, USA.

Participants:

FCCH providers (n 49, 100 % women, 30·6 % Non-Hispanic Black, 2·0 % Hispanic, 4·1 % American Indian/Alaska Native, 51·0 % Non-Hispanic white, 44·2 ± 14·2 years of age. 53·1 % had additional staff) self-reported nutrition and physical activity practices and policies, nutrition self-efficacy and barriers and food programme knowledge. Differences between providers with and without additional staff were adjusted for multiple comparisons (P < 0·01).

Results:

The prevalence of meeting all nutrition and physical activity best practices ranged from 0·0–43·8 % to 4·1–16·7 %, respectively. Average nutrition and physical activity scores were 3·2 ± 0·3 and 3·0 ± 0·5 (max 4·0), respectively. Sum nutrition and physical activity scores were 137·5 ± 12·6 (max 172·0) and 48·4 ± 7·5 (max 64·0), respectively. Providers reported high nutrition self-efficacy and few barriers. The majority of providers (73·9–84·7 %) felt that they could meet food programme best practices; however, knowledge of food programme best practices was lower than anticipated (median 63–67 % accuracy). More providers with additional staff had higher self-efficacy in family-style meal service than did those who did not (P = 0·006).

Conclusions:

Providers had high self-efficacy in meeting nutrition best practices and reported few barriers. While providers were successfully meeting some individual best practices, few met all. Few differences were observed between FCCH providers with and without additional staff. FCCH providers need additional nutrition training on implementation of best practices.
PLURAL ANCESTRAL LOGIC AS THE LOGIC OF ARITHMETIC
Authors: TATTON-BROWN OLIVER
Published: February 2022

Neo-Fregeanism aims to provide a possible route to knowledge of arithmetic via Hume’s principle, but this is of only limited significance if it cannot account for how the vast majority of arithmetic knowledge, accrued by ordinary people, is obtained. I argue that Hume’s principle does not capture what is ordinarily meant by numerical identity, but that we can do much better by buttressing plural logic with plural versions of the ancestral operator, obtaining natural and plausible characterizations of various key arithmetic concepts, including finiteness, equinumerosity and addition and multiplication of cardinality—revealing these to be logical concepts, and obtaining much of ordinary arithmetic knowledge as logical knowledge. Supplementing this with an abstraction principle and a simple axiom of infinity (known either empirically or modally) we obtain a full interpretation of arithmetic.
Design and analysis of circular microstrip patch probe array for precise specific absorption rate measurement at quad-band
Authors: Naik Bhukya Venkanna
Published: February 2022

This paper distinguishes the design and analysis of 3 × 2 circular microstrip patch probe array for specific absorption rate (SAR) measurement at quad-band. This novel approach consists of FR4 substrate radial dimension of 88 mm and it has six circular array elements with a radius of 17 mm; out of these six elements, three array elements are having rectangular slots with dimensions of 1.8 × 1.5 × 1.5 mm3. The array elements are coupled with six probes which have a dimension of 100 mm with a 2.5 mm tip radius; these six probes are embedded into a tissue-equivalent liquid-filled human head mannequin. In this mannequin, instantaneous SAR at any six positions has been investigated. The proposed design resonates at 1.8, 2.1, 2.4, and 2.5 GHz with a return loss of −11.53, −15.90, −15.73, and −25.49 dB. The circular microstrip probe array is fed by a 50 Ohm coaxial feed. In addition, the 3D human head model analysis is also presented. The precisely estimated SAR values are 0.135, 0.108, 0.167, and 0.244 W/kg at 1 g of tissue. For the traceable measurements, each source of uncertainty budget has been estimated.
Automatic Segmentation of Sinkholes Using a Convolutional Neural Network
Authors: Rafique Muhammad Usman , Zhu Junfeng , Jacobs Nathan
Published: February 2022

Sinkholes are the most abundant surface features in karst areas worldwide. Understanding sinkhole occurrences and characteristics is critical for studying karst aquifers and mitigating sinkhole‐related hazards. Most sinkholes appear on the land surface as depressions or cover collapses and are commonly mapped from elevation data, such as digital elevation models (DEMs). Existing methods for identifying sinkholes from DEMs often require two steps: locating surface depressions and separating sinkholes from non‐sinkhole depressions. In this study, we explored deep learning to directly identify sinkholes from DEM data and aerial imagery. A key contribution of our study is an evaluation of various ways of integrating these two types of raster data. We used an image segmentation model, U‐Net, to locate sinkholes. We trained separate U‐Net models based on four input images of elevation data: a DEM image, a slope image, a DEM gradient image, and a DEM‐shaded relief image. Three normalization techniques (Global, Gaussian, and Instance) were applied to improve the model performance. Model results suggest that deep learning is a viable method to identify sinkholes directly from the images of elevation data. In particular, DEM gradient data provided the best input for U‐net image segmentation models to locate sinkholes. The model using the DEM gradient image with Gaussian normalization achieved the best performance with a sinkhole intersection‐over‐union (IoU) of 45.38% on the unseen test set. Aerial images, however, were not useful in training deep learning models for sinkholes as the models using an aerial image as input achieved sinkhole IoUs below 3%.