bluuebunny/crossref_metadata_2025_split huggingface dataset:
Behavioral Efficacy of a Sexual Health Mobile App for Men Who Have Sex With Men: Randomized Controlled Trial of Mobile Messaging for Men
Authors: Sullivan Patrick Sean , Stephenson Rob , Hirshfield Sabina , Mehta Cyra Christina , Zahn Ryan , Bauermeister Jose A , Horvath Keith , Chiasson Mary Ann , Gelaude Deborah , Mullin Shelby , Downing Jr Martin J , Olansky Evelyn Jolene , Wiatrek Sarah , Rogers Erin Q , Rosenberg Eli , Siegler Aaron J , Mansergh Gordon 
Published: February 2022

Background
Gay, bisexual, and other men who have sex with men (GBMSM) face the highest burden of HIV in the United States, and there is a paucity of efficacious mobile health (mHealth) HIV prevention and care interventions tailored specifically for GBMSM. We tested a mobile app combining prevention messages and access to core prevention services for GBMSM.

Objective
This study aims to measure the efficacy of the Mobile Messaging for Men (M-cubed) app and related services to increase HIV prevention and care behaviors in diverse US GBMSM.

Methods
We conducted a randomized open-label study with a waitlist control group among GBMSM in 3 groups (low-risk HIV-negative group, high-risk HIV-negative group, and living-with-HIV [LWH] group) recruited online and in venues in Atlanta, Detroit, and New York City. Participants were randomly assigned to receive access to the app immediately or at 9 months after randomization. The app provided prevention messages in 6 domains of sexual health and offered ordering of at-home HIV and sexually transmitted infection test kits, receiving preexposure prophylaxis (PrEP) evaluations and navigation, and service locators. Serostatus- and risk-specific prevention outcomes were evaluated at baseline, at the end of the intervention period, and at 3, 6, and 9 months after the intervention period.

Results
In total, 1226 GBMSM were enrolled and randomized; of these 611 (49.84%) were assigned to the intervention group and 608 (99.51%) were analyzed, while 615 (50.16%) were assigned to the control group and 612 (99.51%) were analyzed. For high-risk GBMSM, allocation to the intervention arm was associated with higher odds of HIV testing during the intervention period (adjusted odds ratio [aOR] 2.02, 95% CI 1.11-3.66) and with higher odds of using PrEP in the 3 months after the intervention period (aOR 2.41, 95% CI 1.00-5.76, P<.05). No changes in HIV prevention or care were associated with allocation to the intervention arm for the low-risk HIV-negative and LWH groups.

Conclusions
Access to the M-cubed app was associated with increased HIV testing and PrEP use among high-risk HIV-negative GBMSM in 3 US cities. The app could be made available through funded HIV prevention providers; additional efforts are needed to understand optimal strategies to implement the app outside of the research setting.

Trial Registration
ClinicalTrials.gov NCT03666247; https://clinicaltrials.gov/ct2/show/NCT03666247

International Registered Report Identifier (IRRID)
RR2-10.2196/16439
Study of high-temperature behavior of a heat-protective coating of zirconium dioxide by laser heating
Authors: Tsareva I. N. , Krivina L. A. , Berdnik O. B. , Razov E. N. 
Published: February 2022

When studying the high-temperature behavior of the heat-protective coating of zirconium dioxide, the method of laser heating has been tested. The coating was applied by the method of high-energy plasma spraying on the intermetallic sublayer of the Ni–Co–Cr–Al–Y system made of a powder material of the composition (ZrO2 + 7% Y2O3) of spherical morphology.The aim of this work was to study the processes of structural-phase transformations, melting and crystallization occurring in a ceramic coating material under the action of a single laser pulse with a duration of 14 ms with different energies (5, 10, 15, and 20 J). It was found that after spraying, the coating in the initial state has a two-phase composition (T-ZrO2 + K-ZrO2), and a layered microstructure with a columnar structure of zirconium dioxide grains. Laser heating with a pulse energy of 5 J stimulates the phase transformation T-ZrO2 → K-ZrO2, the appearance of porosity and microcracks. With an increase in the pulse energy to 10 and 15 J, the processes of melting and ultrafast crystallization, accompanied by grain refinement, intensively occur on the coating surface. According to the theoretical estimates, the reflow processes affect surface layers with a thickness of 2.2 to 6.6 μm, and phase transformations take place at a depth of ~11 μm. With an increase in the laser pulse energy to E = 20 J, the process of destruction of the coating was initiated by the mechanism of cracking with delamination of fragments of the surface layer 5–10 μm thick.The laser heating method is recommended as an express diagnostics for comparative tests of the heat resistance of ceramic coatings obtained by different methods and from different starting materials.
Genotypic variation rather than ploidy level determines functional trait expression in a foundation tree species in the presence and absence of environmental stress
Authors: Eisenring Michael , Lindroth Richard , Flansburg Amy , Giezendanner Noreen , Mock Karen , Kruger Eric 
Published: February 2022

Background and Aims: At the population level, genetic
diversity is a key determinant of a tree species’ capacity to cope with
stress. However, little is known about the relative importance of the
different components of genetic diversity for tree stress responses. We
compared how two sources of genetic diversity, genotype and cytotype
(i.e. differences in ploidy levels) influence growth, phytochemical, and
physiological traits of Populus tremuloides in the presence and
absence of environmental stress.
Methods: In a series of field studies, we first assessed
variation in traits across diploid and triploid aspen genotypes from
Utah and Wisconsin under nonstressed conditions. In two follow-up
experiments, we exposed diploid and triploid aspen genotypes from
Wisconsin to individual and interactive drought stress and defoliation
treatments and quantified trait variations under stress.
Key Results: We found that 1) tree growth and associated traits
did not differ significantly between ploidy levels under nonstressed
conditions. Instead, variation in tree growth and most other traits was
driven by genotypic and population differences. 2) Genotypic differences
were critical for explaining variation of most of functional traits and
their responses to stress. 3) Ploidy level played a subtle role in
shaping traits and trait stress responses, as its influence was
typically obscured by genotypic differences. 4) As an exception to the
third conclusion, we showed that triploid trees expressed minimally
higher levels of foliar defenses, photosynthesis, and rubisco activity
under well-watered conditions, and displayed slightly greater drought
resilience than diploids.
Conclusion: Although ploidy level can strongly influence the
ecology of tree species, those effects may be relatively small in
contrast to the effects of genotypic variation in highly diverse
species.
Students' Social Care During the COVID-19 Pandemic: How Do School and Family Make Collaboration to Develop it?
Authors: Aziz Rahmat , Novezry Ai Rinda , Siswoyo Selina Rahmawati , Mustofa Mohammad Hasan , Hady M. Samsul 
Published: February 2022

Learning during the COVID-19 pandemic has caused difficulties that have not been resolved by the school and family, failing to develop social care characters in students. The presence of teachers who are not ready to teach online due to inadequate abilities and facilities Learning activities to develop Students' Social Care during the COVID-19 period have created various difficulties for teachers, parents, and students. Challenges that are not responded to appropriately by schools and families have resulted in low social care characteristics. This paper aimed to describe the social care character of students and analyzed the role of schools (teachers) and families (parents) during the learning process. This paper is research on data collected through an open questionnaire and online interviews. An open questionnaire was given to 24 students from three high schools in Malang, East Java Province. In addition, data were also obtained from ten teachers and nine parents. Teachers and parents have difficulty developing social care characters, resulting in the students' low social care character. The selection of the suitable learning model during the pandemic and harmonious cooperation between schools and families become a determinant of success in the learning process of students' social care characters. Thus, the online learning process should change the mindset of teachers and parents that the teacher-centred learning process is not suitable for a student-based learning process as learning actors who have the authority to seek and produce knowledge.
Penggunaan Masker pada Saat Aktivitas Fisik di Saat Pandemi Covid-19
Authors: Wicaksono Arif , Nurfianti Arina 
Published: February 2022

Kebijakan untuk mencegah meluasnya penyebaran virus covid-19 berdampak terhadap aktivitas masyarakat. Hal ini menyebabkan aktivitas fisik masyarakat berkurang dan berpengaruh terhadap kekebalan tubuh serta kesehatan masyarakat. Penelitian ini bertujuan untuk mengetahui penggunaan masker oelh masyarakat pada saat aktivitas fisik di saat pandemic covid-19. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian deskriptif kualitatif. Hal tersebut karena penelitian ini dideskripsikan menggunakan kata-kata tidak menggunakan angka. Pengumpulan data dilakukan dengan observasi. Hasil penelitian ini menunjukkan bahwa masyakarat telah menggunakan masker saat aktivitas fisik. Masyarakat dapat menggunakan masker saat melakukan aktivitas fisik dan hal ini merupakan pilihan bersifat individual yang berhubungan dengan mekanisme adaptasi individu dan bervariasi dibandingkan dengan individu lain.
ETNOKIMIA: EKSPLORASI POTENSI KEARIFAN LOKAL SASAK SEBAGAI SUMBER BELAJAR KIMIA
Authors: Wahyudiati Dwi , Fitriani Fitriani 
Published: February 2022

Sebagian besar pendidik mengalami kesulitan mengintegrasikan segitiga kimia dalam pembelajaran sehingga mahasiswa mengalami kesulitan dalam memahami konsep kimia yaitu pada domain mikroskopik dan simbolik. Adanya kesulitan tersebut berdampak pada rendahnya hasil belajar kognitif, afektif, dan psikomotorik mahasiswa Terlebih lagi sumber belajar yang tersedia saat ini masih terfokus pada konsep-konsep yang bersifat abstrak tanpa diintegrasikan dengan pengalaman keseharian peserta didik sehingga materi kimia menjadi sulit dipahami. Adapun tujuan penelitian ini adalah untuk menganalisis bentuk relevansi kearifan lokal Sasak dengan materi kimia dan menggali potensi kearifan lokal Sasak sebagai sumber belajar pada mata kuliah Kimia Dasar. Jenis penelitian ini merupakan penelitian etnografi. Teknik pengumpulan data yang digunakan adalah teknik observasi, wawancara, dan dokumentasi. Data yang diperoleh dianalisis menggunakan teknik analisis kualitatif yang merupakan gabungan model Miles & Huberman dan Spradley. Berdasasrkan hasil penelitian diperoleh kesimpulan antara lain bentuk relevansi kearifan lokal Sasak dengan materi kimia dapat ditinjau berdasarkan perspektif atau pendekatan analogi, representasi, apersepsi, visualisasi dan interpretasi dan potensi kearifan lokal Sasak lombok sebagai sumber belajar pada mata kuliah Kimia Dasar yaitu pada 5 pokok bahasan antara lain materi dan perubahannya pemisahan dan pembuatan campuran, struktur atom sistem periodik unsur, dan ikatan kimia terintegrasi kearifan lokal Sasak.
Faktor - Faktor Yang Mempengaruhi Kesiapan Aparatur Desa dalam Implementasi Pengelolaan Keuangan Dana Desa pada Masa Pandemi Covid-19
Authors: Ramadhan Wahyu , Arza Fefri Indra 
Published: February 2022

This study aims to determine the effect of communication, human resource competence, resistance to change and leadership commitment to the readiness of the apparatus in managing village funds during the pandemic. The population of this research is all Nagari apparatus in XX Koto District. The sample used is 72 respondents with total sampling technique. This study uses quantitative methods by distributing questionnaires directly. This study was tested using multiple regression analysis. The results obtained from this study indicate that communication and resistance to change have no significant effect on the readiness of village officials in managing village funds during the pandemic, while human resource competence and leadership commitment have a significant positive effect on the readiness of village officials in managing village funds during the pandemic.
Pengaruh Corporate Social Responsibility, Mekanisme GCG terhadap Manajemen Laba: Pada Perusahan Manufaktur yang Terdaftar di Bursa Efek Indonesia
Authors: Zulkarnain Rizki , Helmayunita Nayang 
Published: February 2022

The purpose of this study was to analyze the effect of CSR disclosure, independent commissioner, audit committee and managerial ownership on earnings management. The data used in this study are annual and financial reports in manufacturing companies listed on the indonesia stock exchange (idx) in the period 2015-2019. The method of taking data samples using purposive sampling method based on certain criteria. Based on the retrieval method obtained A sample of 195 companies. Hypothesis testing in this study uses multiple linear regression analysis. The results show that the independen commissioner, the audit committee has no effect on earnings management and the CSR disclosure of managerial ownership has an effect on earnings management.
Faktor-Faktor yang Mempengaruhi Tingkat Pengungkapan Wajib LKPD Kabupaten/Kota di Kalimantan Selatan
Authors: Pramesti Shindy Putri , Misran Alfian 
Published: February 2022

This study tested and proved the effect of intergovernmental revenue, regional wealth, regional expenditure, and human development index on the level of mandatory disclosure of local government financial statements in South kalimantan. The independent variables in this study is intergovernmental revenue, regional wealth, regional expenditure, and human development index. Meanwhile, the dependent variable in this study is level of mandatory disclosure of local government financial statements. Population of this research covers 13 districts and cities within South Kalimantan in the period 2015-2018. The sample was selected using purposive sampling method and obtain of 52 local government financial statements. The analysis technique used on this study is multiple linear regression by SPSS 25 program. The result showed the variable intergovernmental revenue have effect on the level of mandatory disclosure. Variable regional wealth, regional expenditure and human development index do not have effect on the level of mandatory disclosure. This study also indicate that average of mandatory disclosure in South Kalimantan province is 77,98%.
Analisis Prediksi Kebangkrutan pada Perusahaan Manufaktur Sub Sektor Food & Beverages Yang Terdaftar di Bursa Efek Indonesia: Menggunakan Model Altman, Springate, dan Grover
Authors: Nasmi Widia , Afriyenti Mayar 
Published: February 2022

The objective of this research is to determine (1) the prediction of bankruptcy of manufacturing companies in the food and beverages sub-sector listed on the Indonesia Stock Exchange by using the Altman, Springate and Grover models in the 2016 to 2019 period, and (2) to find out the differences in the results of bankruptcy predictions, and also to determine the level of accuracy of the five models in predicting bankruptcy. Sampling method used Purposive Sampling with some criterias which produce 14 samples of food and beverages firms for 5 years of data observation. The results indicate that, first, by using the Altman models, it is predicted that two companies will experience bankruptcy. Altman model and Grover model predict three companies to go bankrupt, while the Springate model predicts four companies to go bankrupt. Second, there is no significant difference between the Altman, Springate and Grover models in predicting the bankruptcy rate of food and beverages sub-sector companies listed on the Indonesia Stock Exchange. Third, the Springate model is a model that has the highest level of accuracy in predicting the bankruptcy of the food and beverages sub-sector, which has an accuracy rate of 92.86%.
Determination of black spots by using accident equivalent number and upper control limit on rural roads of Thailand
Authors: Treeranurat Wanit , Suanmali Suthathip 
Published: February 2022

Abstract
The Department of Rural Roads (DRR) is one of the highway authorities in Thailand responsible for over 48 000 kilometres of rural roads and highway networks. One of its responsibilities is to provide better road safety management. In road safety procedures, black spots are usually identified by observing the frequency of accidents at a particular road section. This research aims to develop a model that includes levels of accident severity in the black spot identification process. The classification of severity levels includes fatalities, serious injuries, minor injuries, and damaged property only. The Analytic Hierarchy Process (AHP) is employed to derive the weight of each severity level. The identification model is developed using Equivalent Accident Number (EAN) and Upper Control Limit (UCL). The data applied in the model are obtained from the road accident investigation of DRR. Five roads — Nakhon Ratchasima 3052, Chonburi 1032, Nonthaburi 3021, Samutprakarn 2001 and Chiangmai 3029 — have been selected based on the top frequency accident recorded in the last three years. Based on the results of black spots identified in the study, most accidents occurred from frontal and rear-ended impacts due to exceeded speed limits. The article discusses recommendations.
Use of Target Costing methodology in the construction of wood-aluminium windows — case study
Authors: Potkány Marek , Krajčírová Lucia , Stasiak-Betlejewska Renata 
Published: February 2022

Abstract
The paper concerns the practical application of Target Costing to a specific product of the woodworking industry with a particular emphasis on customer needs and value analysis principles concerning individual components and functions of the product — a wood-aluminium window Gemini Quadrat FB. Based on principles of value analyses, the study used the functional cost analysis, the quantified target cost index of relevant components and the target cost chart for the allowable cost of components. Two levels of the q parameter — 5 % and 10 % — were used to construct the target cost chart. The target price (EUR 513.19) was assessed. The target production cost was at the level of allowable production costs (EUR 379.31). The results were used to confirm that the ideal value of the target cost index was not achieved for any component, and a higher value of the parameter q can be marked as soft. The paper provides assumptions for the assessment of possible alternatives and potential corrections. The case study presents the description of the Target Costing methodology along with the nuanced characteristics of the approaches used by various authors and the strengths and benefits of using the method.
Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels
Authors: Skiepko Teodor 
Published: February 2022

Abstract
The air cooled automotive condensers under study are of brazed aluminium tube and center, consisting of one row array of horizontal parallel multi-port flat tubes with louver fins on air side. Each tube is with a number of smooth parallel minichannels for internal flow of refrigerant. The analysis uses decomposition of the condenser along refrigerant flow path into specific different zones as follows: two single phase zones, namely: superheated and subcooled, and a few zones of two phase flow that can appear along some specific condensation paths to be: annular/intermittent/bubble or annular/annular-wavy/intermittent/bubble or annular/wavy/stratified. The approach presented is based on experimental correlations for heat transfer and pressure drop. The heat transfer prediction is performed using ε – NTUo methodology. The results of the analysis refer to overall heat transfer rate, heat transfer in particular zones, pressure gradients heat transfer coefficients, vapour quality, condensation paths.
Analysis of the time efficiency of skidding technology based on the skidders
Authors: Orlovský Lukáš , Messingerová Valéria , Danihelová Zuzana 
Published: February 2022

Abstract
The time efficiency and principles of ergonomics related to timber skidding are based on the time consumption per work cycle as well as on the time consumption per individual work operations. Regarding the demands on the environmental requirements and ever increasing cost of work, it is necessary to objectively evaluate the inevitable time consumption required for timber skidding using all technologies. The paper summarised the results of time studies for skidder technologies. The time study compares the time consumption and productivity of cable skidders and cable-grapple skidders, with the main focus on developing time prediction models. The main aim of the study was to objectify the skidder time consumption and establish the impact of production factors on the time consumption of partial work operations of skidders. Within the time study 231 work cycles were measured, and 53 snapshots of work day with using methods continual time study. The overall time consumption of the work cycle and gross production rate of the monitored cable and cable-grapple skidders is affected by the following production factors: the skidding distance, volume of skidded logs and number of skidded logs. The impact of individual production factors on the overall time consumption of the work cycle is different for each group of skidders. Non-operation times of the skidder operators’ shifts represent 24.6% with the highest part taken by the technical operation of the work place. The mean gross production rate of the monitored skidders varied from 33.3 to 6.91 m3 h−1.
Habitat selection of semi-free ranging European bison: Do bison preferred natural open habitats?
Authors: Zikmund Miloslav , Ježek Miloš , Silovský Václav , Červený Jaroslav 
Published: February 2022

Abstract
European bison (Bison bonasus) were successfully reintroduced in many free or semi-free areas across Europe during the last decades. Due to the increased numbers, the conflicts between human activities and bison are more frequent. Therefore the knowledge about spatial activity and habitat preference in new regions is the need for management decision making. We studied daily and seasonal habitat use of the semi-free European bison herd in the Czech Republic from 2014 to 2019. The lead cows of the herd were collared with the GPS devices with a 30-minutes GPS fixes interval. The bison herd strongly preferred the managed open areas and supplementary feeding stations during the seasons (Jacob´s index from 0.49 to 0.99). On the contrary, they avoided the forest type and unmanaged open habitats (Jacob´s index from −0.23 to −0.69). The managed meadows and feeding places they used almost exclusively during the night while the forest during the day-light.