bluuebunny/crossref_metadata_2025_split huggingface dataset:
SCATTER: A New Common Envelope Formalism
Authors: Di Stefano Rosanne , Kruckow Matthias U. , Gao Yan , Neunteufel Patrick G. , Kobayashi Chiaki 
Published: February 2023

Abstract
One of the most mysterious astrophysical states is the common envelope (CE) phase of binary evolution, in which two stars are enshrouded by the envelope shed by one of them. Interactions between the stars and the envelope shrinks the orbit. The CE can lead to mergers or to a subsequent phase of interactions. Mergers may involve any combination of two compact objects and/or stars. Some involving white dwarfs may produce Type Ia supernovae, while merging neutron stars may yield gamma-ray bursts, and merging compact objects of all kinds produce gravitational radiation. Since CEs can arise from a variety of different initial conditions, and due to the complexity of the processes involved, it is difficult to predict their end states. When many systems are being considered, as in population synthesis calculations, conservation principles are generally employed. Here we use angular momentum in a new way to derive a simple expression for the final orbital separation. This method provides advantages for the study of binaries and is particularly well suited to higher-order multiples, now considered to be important in the genesis of potential mergers. Here we focus on CEs in binaries, and the follow-up paper extends our formalism to multiple-star systems within which a CE occurs.
Black Hole Ultracompact X-Ray Binaries: Galactic Low-frequency Gravitational Wave Sources
Authors: Qin Ke , Jiang Long , Chen Wen-Cong 
Published: February 2023

Abstract
In the Galaxy, close binaries with compact objects are important low-frequency gravitational wave (GW) sources. As potential low-frequency GW sources, neutron star/white dwarf (WD) ultracompact X-ray binaries (UCXBs) have been investigated extensively. Using the Modules for Experiments in Stellar Astrophysics code, we systematically explored the evolution of black hole (BH)-main-sequence star (MS) binaries to determine whether their descendants can be detected by space-borne GW detectors. Our simulations showed that BH-MS binaries with an initial orbital period less than the bifurcation period can evolve into BH UCXBs that can be detected by LISA. Such an evolutionary channel would form compact mass-transferring BH-WD systems rather than detached BH-WD systems. The calculated X-ray luminosities of BH UCXBs that can be detected by LISA at a distance d = 1 kpc are ∼1033–1035 erg s−1 (∼1034–1035 erg s−1 for d = 10 kpc); hence, it is possible to detect their electromagnetic counterparts. It is worth emphasizing that only some BH-MS systems with an initial orbital period very close to the bifurcation period can evolve toward low-frequency GW sources whose chirp masses can be measured. The maximum GW frequency of BH UCXBs forming via the BH-MS pathway is about 3 mHz, which is smaller than the minimum GW frequency (6.4 mHz) of mass-transferring BH-WDs originating from a dynamic process. Furthermore, we obtain an initial parameter space (donor-star masses and orbital periods) of progenitors of BH UCXB-GW sources, which can be applied to future population synthesis simulations. By a rough estimation, we predict that LISA would only be able to detect a few BH UCXB-GW sources formed by the BH-MS channel.
Effect of caffeine on the amplitude of accommodation and pupil size
Authors: Naik Vaibhavi V. , Chandra Mahima 
Published: February 2023

PURPOSE:
It is a well-known fact that caffeine is an autonomic stimulant, which is said to have a significant effect on visual performance. This study was planned to investigate the effect of caffeine on the amplitude of accommodation and pupil size in adults.

MATERIALS AND METHODS:
An experimental study was conducted on 54 healthy individuals in the age range of 27–39 years. All the individuals underwent comprehensive eye examinations and were given caffeine through hot coffee (4 mg/kg). Push up method was used to measure accommodative amplitude (AOA) and pupil size was measured using millimeter scale, at baseline (before consuming coffee) and at 20, 40, and 60 min after consumption of coffee. All the measurements were taken on a random eye selected prior to the study.

RESULTS:
After consumption of caffeine, the AOA and pupil size showed a significant increase (P < 0.001) after 40 and 60 min. AOA elevated from 9.76 standard deviation (SD) ± 1.46D at baseline to 10.79 SD ± 1.55D at 60 min. Similarly, increment in pupil size from 3.53 SD ± 0.77 mm from baseline to 4.20 SD ± 0.77 mm after 60 min was recorded. There was no correlation found between AOA and pupil size at any point of time (r < 0.2).

CONCLUSION:
AOA and pupil size are affected in adults after caffeine consumption and it is important to take into account the history related to caffeine consumption before ocular and orthoptic evaluation. It can influence and alter the measurements recorded.
The impact of social media on academic performance and interpersonal relations among health sciences undergraduates
Authors: Chandrasena P. P. C. M. , Ilankoon I. M. P. S. 
Published: February 2023

BACKGROUND:
Social media has become a most inseparable part of young adults’ lives with the rapid development of information and communication technology. The study aimed to assess the use of social media and its association with academic performance, well-being, and interpersonal relation of the health sciences undergraduates.

MATERIALS AND METHODS:
A descriptive cross-sectional study was conducted among undergraduates in Faculty of Allied Health Sciences (n = 220), University of Sri Jayewardenepura, Sri Lanka. Data were collected using a pretested, self-administered questionnaire and analyzed using descriptive and inferential statistics.

RESULTS:
The response rate was 79.5%. All undergraduates (n = 175) had social media accounts, and WhatsApp was the most frequently used social media site (96.0%), followed by Facebook (70.9%), mainly for communicating (85.1%), entertainment (83.4%), and online learning (65.7%). Most undergraduates (72.0%) spent 2–5 h daily on social media sites and followed social media 1–10 times per day (54.9%). The majority of them wished to use social media for academic purposes (94.9%), and the most preferred site for academic work was WhatsApp (65.1%). Most undergraduates’ self-reported Grade Point Average (GPA) (46.3%) was <2.9. There was a statistically significant association between the mean GPA and frequencies of using social media (P = 0.02) (not daily [3.3 ± 0.3], 1–10 times a day [2.9 ± 0.4], and more than 10 times a day [3 ± 0.4]). Perceived social media addiction and duration of sleep (P = 0.02), activities of daily living (P = 0.004), and study time (P = 0.02) were found to be significantly associated.

CONCLUSIONS:
Despite the undergraduates’ willingness to use social media for academic purposes, the frequency of using social media had a significant influence on their academic performance. This highlights the importance of guidance on effective use of social media and social media addiction to improve undergraduates’ academic performance, well-being, and interpersonal relationships.
CONGRUENCES CONCERNING LEGENDRE POLYNOMIALS MODULO p^2
Authors: Kim Aeran 
Published: February 2023

In this article, we extend Z. H. Sun's congruences concerning Legendre polynomials P p−1 2 (x) to P p+1 2 (x) for odd prime p, which enables us to deduce some congruences resembling p+1 2 ∑ k=0 4pk + 4k 2 − 1 16 k (2k − 1) 2 (2k k)2 (mod p 2).
이 논문에서 우리는 Z. H. Sun의 르장드르 다항식의 합동식 P p−1 2 (x) 에서 P p+1 2 (x) (단, p는 소수) 까지를 이용해서 이 합동식과 비슷한 합동식 p+1 2 ∑ k=0 4pk + 4k 2 − 1 16 k (2k − 1) 2 (2k k)2 (mod p 2) 을 유도한다.
PENGARUH PENGELOLAAN DANA ALOKASI UMUM TAMBAHAN (DAU-T) TERHADAP KESEJAHTERAAN MASYARAKAT DI KELURAHAN KURANJI
Authors: Sarahwati Juwita Dewi , Rahmawati Iroh 
Published: February 2023

The purpose of this research was to management of additional General Allocation Fund (DAU-T) conducted in accordance with financial principles, to know the welfare of the community in Kelurahan Kuranji Kecamatan Taktakan Kota Serang, to know the influence of the management of Additional General Allocation Fund (DAU-T) on the welfare of the community in Kelurahan Kuranji Kecamatan Taktakan Kota Serang. The research methods used in this research are quantitative methods, using survey techniques. The data source in this study was the source of the subject from where the data name is commonly obtained, questionnaires and interviews. The free variable in this study was The Management of Additional General Allocation Fund (DAU-T). While the variables tied in this study was Community Welfare. The subjects in this study were the entire Kelurahan Kuranji Kecamatan Taktakan Kota Serang, where the population was 4,119 and the sample numbered 100, with an error rate of 10%. The results of this study showed that there was a significant influence between the Management of Additional General Allocation Fund (DAU-T) on the welfare of the community in Kelurahan Kuranji Kecamatan Taktakan Kota Serang
Strategi Dakwah Majelis Taklim Mushola Al-Falah Haurgeulis Dalam Meningkatkan Jamaah
Authors: Afifa Siti Syarah , Fitri Ahmad Asrof , Mulkannasir Mulkannasir 
Published: February 2023

The taklim council, as a form of preaching organization and religious studies, has now been packaged with appropriate preaching strategies in order to attract young people to study religion while not appearing outdated. The taklim council Al-Falah, which is the first place in Haurgeulis for Islamic religious studies specifically for Muslim women, was established in early 2018 with only eight members and now has around 100 members. The increase in congregations in less than two years demonstrates that the taklim council’s preaching strategy has been quite successful. This paper provides an understanding how preaching strategies uses by the taklim council Al-Falah Haurgeulis of increase in the congregation. This study uses a qualitative field research method with descriptive analysis. In-depth interviews, observation, and documentation were used to collect data. According to the findings of this study (1) formulating a preaching strategy by examining the relationship between the organization and its environment, (2) the use of preaching strategies in the field implementation process are sentimental strategies, rational strategies, and sensory strategies, (3) Do evaluations and show changes in the congregation is viewed in terms of quantity and quality.
Vulnerability of Nyabarongo River Water Abstraction to Climate Change in Rwanda
Authors: Manikuze Prosper , Nyongesah John 
Published: February 2023

Purpose: Climate change in Rwanda is a great challenge resulting from increased temperature and causing abnormal variability in weather variables and threatening the socio-economic welfare of human beings. Water resources have been subjected to degradation and pollution due to intensive and frequent rainfall that have negatively impact on water abstractions in their proximity. This study aimed at analyzing the vulnerability of the Nyabarongo river water abstraction to climate change.
Methodology: GIS and remote sensing were used to map and analyze possible changes in geophysical status of the river. Secondary data collection on temperature and rainfall for a forty years period was used to analyze the trend in climate change in Rwanda.
Findings: The results indicated that climate change in Rwanda has resulted in extreme weather events that resulted in inundations and floods of Nyabarongo River and its wetland that exacerbated the changes in geophysical status such as river flow pathway and meandering. This has resulted in washing away of some water abstraction facilities around the river and the distancing from such facilities leading to interference with abstraction. It was also found out that dry season’s markedly diminished water available for abstraction in the river and impacting negatively on the groundwater recharge.
Unique Contribution to Theory, Practice and Policy: The findings can stimulate decision makers in water resources management to initiate and roll out similar studies countrywide and serve as baseline to adopt measures and strategies for the sustainable management of the resources. The findings also call for Water users to take into consideration of climate impacts during the studies, designs and implementation of water use project for the sustainable exploitation of water resources.
Gambaran Budaya Organisasi Keperawatan Di Rumah Sakit Santa Elisabeth Medan Tahun 2020
Authors: Parhusip Betaria Sonata 
Published: February 2023

Abstrak:
Budaya organisasi merupakan komitmen organisasi untuk mencapai tujuan. melalui budaya organisasi dapat membangun komitmen dalam diri karyawan. Rumah Sakit Santa Elisabeth Medan memiliki Visi, Misi, dan budaya organisasi yang sudah mapan sejak berdirinya Rumah Sakit. Struktur organisasi menjunjung tinggi budaya organisasi kerena salah satu ujung tombak untuk meningkatkan Asuhan keperawatan . Penelitian bertujuan untuk mengetahui gambaran budaya organisasi di Rumah Sakit Santa Elisabeth Medan Tahun 2020. Penelitian ini menggunakan rancangan penelitian deskriptif. Teknik pengambilan sampel menggunakan teknik proportional sampling, dengan populasi 202 orang, jumlah responden 30 orang. Instrumen yang di gunakan adalah kuesioner. Hasil penelitian budaya organisasi di Rumah Sakit Santa Elisabeth Medan Tahun 2020 dengan indikator disiplin yang terlaksana 97,80%, tidak terlaksana 2,20 %, indikator inisisatif yang terlaksana 71,60% tidak terrlaksana 28,30%, indikator responsif yang terlaksana 85,60%, idikator komunikasi yang terlaksana 90,60%, tidak terlaksana 9,40%, dan indikator kerjasama yang terlaksana 87,70% , tidak terlaksana 12,30%. Kesimpulan : budaya organisasi di Rumah Sakit Santa Elisaebth Medan terlaksana. Saran agar mempertahankan budaya organisasi untuk menigkatkan mutu pelayan rumah sakit.
Gambaran Beban Kerja Perawat Di Rumah Sakit Santa Elisabeth Medan
Authors: Siagian Bernita Martlin 
Published: February 2023

Beban kerja merupakan kondisi membebani yang di alami pekerja dalam bekerja baik secara fisik maupun non fisik atau merupakan waktu yang dibutuhkan perawat dalam menangani pasien per hari di sebuah unit Rumah Sakit dalam melaksanakan kegiatan keperawatan langsung maupun perawatan tidak langsung. Beban kerja penting untuk mengetahui kapasitas kerja perawat agar terdapat keseimbangan antara tenaga perawat dengan beban kerja. Beban kerja yang terlalu banyak dapat menurunkan produktifitas perawat itu sendiri yang dapat menyebabkan penurunan mutu pelayanan keperawatan. Penelitian bertujuan mengetahui gambaran beban kerja perawat di Rumah Sakit Santa Elisabeth Medan Tahun 2020. Penelitian ini menggunakan rancangan penelitian deskriptif. Teknik pengambilan sampel menggunakan teknik proportional sampling, dengan jumlah populasi 69 orang dan jumlah responden 30. Instrumen yang di gunakan lembar observasi. Hasil penelitian beban kerja perawat kategori berat pada shift pagi : 43 %, shift sore 30%, shift malam 24% di karena tindakan keperawatan langsung pada shift pagi lebih tinggi dari pada shift sore dan malam. Untuk total tindakan keperawatan didapatkan rata-rata perawatan langsung shift pagi 458 menit (29,4%), perawatan tidak langsung 476 menit (30,5%) dan non keperawatan 626 menit (40,0%) sehingga didapatkan beban kerja ringan di seluruh ruangan intensif . Saran agar perawat tetap meningkatkan pelayanan yang optimal di rumah sakit
THE ROLE OF BUMDES IN IMPROVING WELFARE IN TOLONDADU II VILLAGE, BOLAANG UKI SUB-DISTRICT BOLAANG MONGONDOW SELATAN DISTRICT
Authors: Tontoli Rina , Aryati Hamzah  , Yahya Siskawati 
Published: February 2023

The purpose of compiling the final project report is to find out the role of BUMDes Minanga Jaya in improving welfare in Tolondadu II Village, Bolaang Uki District, South Bolaang Mongondow Regency.
Data obtained through observation, interviews and comments using descriptive methods. There were 3 informants in writing this final report, namely Ms. Aisa Gobel, Mr. Risno Masaguni and Mr. Abubakar Tuadingo.
Report on the Final Results of Writing the Role of BUMDes as a Motivator in Tolondadu II Village, Bolaang Mongondow Selatan Regency, as the spearhead and pioneer of Business Entities.
Combined wind lidar and cloud radar for high-resolution wind profiling
Authors: Dias Neto José , Nuijens Louise , Unal Christine , Knoop Steven 
Published: February 2023

Abstract. This paper introduces an experimental setup for retrieving horizontal wind speed and direction profiles with a high temporal and vertical resolution for process studies and validation of convection-permitting model simulations. The CMTRACE (tracing convective momentum transport in complex cloudy atmospheres) campaign used collocated wind lidar and cloud radar measurements to retrieve seamless wind profiles from near the surface up to cloud tops. It took place in Cabauw, the Netherlands, between 13 September and 3 October 2021. The intermediate processing steps for generating the level 1 and level 2 data, such as second trip echoes filtering, offset correction, wind retrieval, re-gridding, and flagging, are described. In level 1 (https://doi.org/10.5281/zenodo.6926483, Dias Neto, 2022a), the data from lidar and radars are kept in the original spatial and temporal resolution, while in level 2 (https://doi.org/10.5281/zenodo.6926605, Dias Neto, 2022b), they are regridded to a common spatial and temporal resolution. Statistical analyses of the lidar's and radar's wind speed and direction profiles indicate a correlation higher than 0.95 for both variables. The bias of wind direction and speed calculated between radar's and lidar's observations are 0.24∘ and −0.16 m s−1, respectively. The foreseen initial application of the datasets includes the study of convective momentum transport and its validation in regional weather forecasts and large-eddy simulation hindcasts.
Performance Structural Analysis of U2C Building with the Kobe Earthquake Spectrum
Authors: Yusra Andi , Mustafa Andi , Refiyanni Meidia , Zakia Zakia 
Published: February 2023

An investigation into the performance of the building structure in receiving the earthquake load must ensure that the building structure is able to receive it within safe limits. A non-linear approach is generally done through pushover analysis. The purpose of this study is to find out how the behavior or performance of building structures when receiving earthquake loads. The analysis is carried out by modeling the structure of the building using the help of the STERA 3D application. Then it is done by entering the Kobe earthquake spectrum data into the software. From the results of the analysis, the value of the deviation between directional levels X 0.0058 m with a base shear of 10,090 KN was obtained. While the Y direction capacity curve has the largest displacement of 0.0084 m with a base shear of 13,270 KN. The result of structural deviation when the performance point is reached for X direction and Y direction loading of 0.0042 m and 0.0063 m, resulting in a yellow color at each point of the column and beam relationship which means that it is still within the range of 1 U 5 (AMP (response force) analysis), this indicates that the condition of the building structure remains safe during an earthquake.
PERANCANGAN SISTEM PENYALUR PETIR EKSTERNAL DI AREA TANGKI TIMBUN INTEGRETED TERMINAL X
Authors: Ametembun Jovita Anggela 
Published: February 2023

Industri Minyak dan Gas Bumi adalah industri dengan tingkat kecelakaan tinggi. Sistem safety pada industri ini harus selalu dioptimalkan demi mencegah terjadinya kecelakaan. Tingginya kecelakaan dalam Industri minyak dan gas di Indonesia terjadi karena sambaran petir, Penyalur petir sebagai penghantar muatan negatif dari petir ke tanah harus optimal agar terhindar dari potensi tersambar petir. Hasil evaluasi pada area berbahaya Tangki Timbun BBM Integreted Terminal X mempunyai tiga tiang penyalur petir yang belum bisa mencakup keseluruhan area maka harus dilakukan optimasi dengan penambahan sistem penyalur petir yang sesuai dengan standar. Evaluasi dan optimasi Sistem Penyalur Petir dilakukan berdasarkan SNI 03-7015-2004 Tentang Sistem Proteksi Petir Pada Bangunan. Hasil evaluasi menyatakan Area Tangki Timbun BBM berada pada tingkat proteksi pertama yang mana sangat berpotensi tersambar petir karena tempat penampungan BBM yang berbahaya dan mudah terbakar. Sistem safety Penyalur Petir kemudian dioptimasi dengan penambahan 1 tiang sistem penyalur petir untuk mencover area yang belum terproteksi.
Latin America and the Caribbean: trade relations in the face of global geopolitical fragmentation risks
Authors: Campos Rodolfo , Timini Jacopo 
Published: February 2023

RationaleA geopolitical fragmentation of world trade, i.e. the emergence of two blocs that restrict trade with countries in the other bloc, has recently become a more likely prospect. How does this geopolitical risk affect the trade and economic outlook for Latin America and the Caribbean?Takeaways•Countries in Latin America and the Caribbean differ in terms of both their trade openness and the geographical structure of their trade.•They are therefore heterogeneously exposed to the risk of geopolitically fragmented trade.•We quantify each country’s exposure and analyse how Latin America can harness greater trade integration with the European Union to reduce the costs of a potential fragmentation of world trade.
DYNAMICS OF FOOD SUPPLY POLICIES IN THE MIDDLE OF ISRAELI-PALESTINIAN CONFLICT
Authors: Bdeer Phd Sarhan 
Published: February 2023

The long-lasting conflict between Israel and the Palestinians led to many consequences, unwanted by both sides. Both intentional and unintentional policy decisions brought about extreme security measures taken by Israel which heavily influence Israeli and Palestinian economics and welfare, especially the food market and trade. Right now, it is very hard to trade from both sides since there are too many restrictions, regulations and rules.
Public policies in the issues called controlling hurt not only the markets, but the country system itself as public policies have made a very hard criteria to match while trading, especially in the food market, and it led to major losses in welfare on both sides. Moreover, policies that are intended to deal with supply and demand are constantly in a danger zone because of the everlasting conflict, which have major impacts on economy as a whole, and particularly food markets. Examples of such disasters are the following: leaking of nuclear energy and natural disasters and significant changes in the geopolitical arena which leaves both sides uncertain about their future.
INSÉCURITÉ ET BILINGUISME DANS LE SUD-OUEST CAMEROUN: ANALYSE DES INTERACTIONS NUMÉRIQUES AUTOUR D’UN CAS INÉDIT D’ENLÈVEMENT D’ÉTUDIANTS
Authors: Nguemo Kengmo Joseph , Djiala Mellie Diderot 
Published: February 2023

In Cameroon, the current crisis affecting the two Anglophone regions strongly influences media and language people use to communicate. This paper focuses on the bilingual interaction amongst ASTI students in their shared WhatsApp group at a moment when one of their mates has just been kidnapped by unidentified individuals. The corpus analyzed is thus part of messages shared by those seeking solutions to the release of their mate. Our study is meant to be qualitative, using methodological tools of conversation analysis as well as the sociolinguistic theory related to language use in context. We aim to investigate the use of the two linguistic codes, especially English and French, within the body of the conversation about kidnapping. The paper begins with an overview of the usefulness of communication in social media in the context of crisis and follows with analysis of the alternate use of English and French by group members, and lastly, we assess how borrowing and code-switching used by the group members accommodate with the bilingualism promoted by the State of Cameroon. Our main conclusion is that the mixed use of English and French in the same body of conversation must in our context be regarded as a sign of cohesion, solidarity or togetherness amongst speakers.