bluuebunny/crossref_metadata_2025_split huggingface dataset:
PRAKTIK JUAL BELI DENGAN SISTEM PRE ORDER PERSPEKTIF HUKUM EKONOMI SYARI’AH (Studi Kasus Di Toko Online HelloByl_Aesthetic)
Authors: Ahmad Izzan  , Widaningsih Santini , Syaripudin Enceng Iip 
Published: October 2023

Abstrak
Jual beli merupakan kegiatan tukar menukar barang dengan harta benda berupa uang. Terdapat dua jenis jual beli dalam praktiknya, yaitu jual beli secara langsung dan jual beli secara tidak langsung. Jual beli langsung contohnya jual beli di pasar dan minimarket yang secara langsung bertemu untuk memilih barang yang akan dibeli. Sedangkan jual beli tidak langsung dilakukan secara online biasa dikenal dengan istilah Electronic Commerse (E-Commerse) yang memudahkan para konsumen dalam berbelanja karena konsumen tidak lagi harus datang langsung ke toko, tetapi hanya perlu membuka smarthphone, membuka toko online kemudian membeli barang yang dibutuhkan. Sistem pre order atau disebut PO adalah sistem berjualan dimana seseorang penjual menerima order atas suatu produk yang ditawarkan di media marketplace atau media sosial. Toko HelloByl_Aesthetic merupakan toko online (marketplace) yang menggunakan sistem pre order sebagai salah satu alternatif dalam penjualan produknya. Penelitian ini memiliki tujuan untuk mengetahui sistem jual beli pre order dalam Islam. Selain itu, penelitian ini bertujuan ntuk mengetahui praktik jual beli dengan sistem pre order yang dilakukan di toko online HelloByl_Aesthetic sehingga pada akhirnya penulis ingin menganalisis mengenai pandangan hukum ekonomi syari’ah terhadap sistem jual beli pre order di toko online HelloByl_Aesthetic.
Penelitian lapangan (field research) adalah jenis penelitian yang digunakan dalam penelitian ini, yaitu penelitian dimana peneliti langsung melihat ke lapangan untuk mengadakan pengamatan atas suatu fenomena dalam keadaan alamiah. Fenomena yang menjadi objek penelitian adalah toko online HelloByl_Aesthetic. Teknik pengumpulan data yang digunakan adalah observasi, wawancara dan dokumentasi. Dari data tersebut diolah kemudian dianalisis dengan menggunakan metode analisis data melalui tahap reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian ini menunjukkan bahwa praktik jual beli dengan sistem pre order atau ba’i salam yang dilakukan di toko online HelloByI_Aesthetic dilihat dari syarat-syarat pre order, terdapat syarat yang tidak terpenuhi yaitu dalam penyediaan barang yang akan dijual belum tersedia di penjual. Apabila dilihat dari sudut pandang prinsip ekonomi syariah telah sesuai dengan prinsip-prinsip hukum ekonomi syariah.
Kata kunci: Jual Beli, Pre Order, Ba’i Salam.
TINJAUAN HUKUM EKONOMI SAYARI’AH TENTANG JUAL BELI MELALUI JASA GO-FOOD
Authors: Sulthonuddin Bung Hijaj , Sabani Ai Mutmainah 
Published: October 2023

Fitur layanan Go-food dalam aplikasi Go-jek merupakan layanan jual beli antara konsumen dengan penjual melalui prantara pengemudi Go-jek. Ketertarikan mengkaji layanan Go-food adalah adanya perbedaan pendapat dalam perspektif hukum islam mengenai keabsahan jual beli menggunakan layanan tersebut.
Tujuan penelitian ini yaitu untuk mengetahui sistem jual beli melalui jasa Go-food, mekanisme jual beli melalui jasa Go-food di aplikasi Go-jek, serta untuk mengetahui perspektif hukum ekonomi Syari’ah tentang jual beli melalui jasa Go-food di aplikasi Go-jek. Penelitian ini termasuk kedalam jenis penelitian kualitatif dengan teknik pengumpulan data yang digunakan yaitu wawancara, observasi, dan dokumentasi. Dari data tersebut dianalisis melalui tahap reduksi data, penyajian data, kemudian penarikan kesimpulan.
Berdasarkan hasil penelitian ini ditemukan bahwa mekanisme jual beli melalui jasa Go-food di aplikasi Go-jek pada dasarnya sama dengan jual beli online seperti biasa. Dalam perspektif hukum ekonomi Islam, jual beli melalui jasa Go-food masuk kedalam akad Ba’i As-Salam, bisa juga menggunakan akad istishna dan akad qardh. Selain itu, jual beli tersebut telah memenuhi rukun dan syarat jual beli serta sudah sesuai dengan prinsip jual beli, sehingga jual beli melalui jasa Go-food di aplikasi Go-jek boleh dan halal.
Kata Kunci : Hukum Ekonomi Syariah, Jual Beli, Gojek, Gofood
The Importance of Perinatal Care Practices in Determining Pregnant Women's Satisfaction with Birth
Authors: ÖCAL Ece , ALKAN AKALIN Senem , ÖZÇELİK OTCU Serap Mutlu 
Published: October 2023

Aim: Perinatal care services constitute an inseparable structure of the “safe motherhood” approach introduced by the World Health Organization (WHO) in 1987. In the Antenatal Care Guide published by WHO in 2016, they revealed that the woman should perform eight antenatal follow-ups during the pregnancy period. The “Antenatal Care Monitoring Protocol”, which was revised by the Ministry of Health in Turkey in 2017, emphasized that at least four antenatal follow-ups should be made for each pregnant woman. The main purpose of perinatal services is; Regular monitoring of the pregnant and fetus by health personnel, having a healthy pregnancy and delivery process, preventing and determining risky situations, and meeting the psychosocial and medical needs of the pregnant. Our study was carried out as a descriptive and relationship seeker in order to determine the satisfaction of mothers with their birth in the perinatal care practices given in a university hospital.
Material and Methods: The sample part of the study was accepted as 60 women who applied to the delivery room of İstanbul University Çapa Medical Faculty to give birth, and 60 women who gave birth by cesarean section. The data obtained are; It was obtained by using the “Descriptive Information Form”, “Optimality Index-Turkey (OI-TR) Case Report Form”, “Maternal Satisfaction Assessment at Delivery Scale (DAMDÖ) (Normal Birth)” and Maternal Satisfaction Assessment at Birth (Cesarean Section)”.
Results: When the results obtained in the research are interpreted; Perinatal CV index (PPI) score of 87.61% and optimality index (OI) score of 79.11% of the women in the research group; PPI score of 90.16% and OI score of 76.11% of women who had vaginal delivery; It was revealed that the PPI score of women who gave birth by cesarean section was 85.07% and the OI score was 82.12%.
Conclusion: When the DAMDÖ scores according to the delivery type were examined, it was determined that the women who gave birth in both ways had a high level of satisfaction with the birth.
A Case Series of Butane Intoxication Fatalities in the Southeastern Anatolia Region of Türkiye
Authors: DÜNDAR Ahmet Sedat , ALTIN İsmail 
Published: October 2023

Aim: Volatile solvent abuse (VSA), is the third most common form of substance abuse after alcohol and cigarettes. The aim of this study was to determine the incidence of fatalities due to butane gas.
Material and Methods: From 8,075 autopsies conducted in our center in Şanlıurfa, Türkiye in a 10-year period, 10 deaths were determined to be due to butane gas intoxication.
Results: All the fatalities were males (mean age: 17.6 years). Friends reported chronic use of lighter gas by the fatalities prior to the incident. In contrast, close relatives stated that it was the first instance of VSA. The preferred inhalation methods were bagging (i.e., inhaling gas from a plastic bag, n=4) and direct inhalation (i.e., spraying the gas directly in the mouth, n=6). The scene of incident findings revealed more than one lighter gas cartridge at the scene in nine cases and many lighters at the scene in one case. The autopsy examinations revealed minimal grazing on the body in three cases and no traumatic findings in seven cases. Butane was detected in blood samples in all 10 cases and in lung tissue samples in eight cases. In all 10 cases, there were areas of intra-alveolar swelling, edema, and bleeding in the lungs.
Conclusion: The actual incidence of VSA-related deaths is likely much higher than the number of reported cases, as our center is located near the Syrian border and has one of the highest populations of children and young people in Türkiye.
High Salt-Induced Hyperosmolality Reduces in Vitro Survival and Proliferation of Pre-B Cells
Authors: YABAŞ Mehmet 
Published: October 2023

Aim: B cells of the adaptive immunity are critical for protection against the vast majority of pathogens through the production of specific antibodies. A number of signaling pathways and transcription factors control B cell development. Environmental factors, including diet, are also important in determining how B cell develop and function. Here, the effects of hyperosmolality induced by elevated salt on the survival, IL-7-induced proliferation and differentiation of pre-B cells were tested in vitro.
Material and Methods: The wk3 pre-B cell line generated from SLP65–/– mice was used. Hyperosmolality in the cell culture medium was created by increasing the salt concentration with the addition of 40 mM NaCl. Wk3 pre-B cells were cultured in standard (normal NaCl) and high salt (+40 mM NaCl) medium, followed by flow cytometric analysis.
Results: It was found that hyperosmolality caused by high salt reduced survival and induced apoptosis in wk3 pre-B cells. In addition, hyperosmolality inhibited IL-7-induced proliferation of pre-B cells. Conversely, pre-B cells treated with high salt were able to differentiate normally into IgM+ immature B cells when IL-7 was removed.
Conclusion: These findings suggest that the hyperosmolar microenvironment induced by high salt may play a key role in B cell development in the bone marrow.
PARENTALIDADE ATRAVÉS DA DISCIPLINA POSITIVA E OS REFLEXOS NA ADOLESCÊNCIA:
Authors: Hughes Sento Se Jurema , Strack Miriam Medeiros , Ferreira Sónia Mairos Baptista 
Published: October 2023

A adolescência caracteriza-se por transformações e mudanças. Muitas vezes os jovens são incompreendidos e, por vezes, os responsáveis usam métodos ortodoxos, para impor o respeito através da força, ameaça e/ou punição. Os adolescentes deixaram de ser crianças e ainda não são adultos, não se reconhecem em seus corpos que estão mudando, nem compreendem as alterações a que estão submetidos. As famílias deveriam orientar no que está acontecendo, se colocar como parceiros. Algumas famílias têm aproveitado para se aproximarem de seus jovens através de trocas constantes e contínuas. Algumas famílias mantêm a crença de que os jovens estão submissos aos pais até que se sustentem. Essa mudança de paradigma não é rápida e está longe de ser fácil. A Disciplina Positiva prima por uma educação respeitosa, através da comunicação não violenta, contribuindo para o desenvolvimento de boas competências emocionais. O objetivo principal da pesquisa é identificar o que já existe publicado acerca dessa temática. Trata-se da revisão bibliográfica no Portal de Periódicos Capes (Catálogo de Teses e Dissertações) e Repositório de Acesso Aberto de Portugal (RCAAP), em Portugal.
“Sosyal Medya ve Hemşirelik” Dersinin Hemşirelik Öğrencilerinin Sosyal Medyaya Özgü Epistemolojik İnançları ile Eleştirel Düşünme Motivasyonları ve Eğilimleri Üzerine Etkisi
Authors: IŞIK Burçin , ÇAKI Burcu , KUŞLU Sebahat , GÜNGÖRMÜŞ Zeynep 
Published: October 2023

Amaç: Bu çalışma, “Sosyal Medya ve Hemşirelik” dersinin, hemşirelik öğrencilerinin sosyal medyaya özgü epistemolojik inançları ile eleştirel düşünme motivasyonu ve eğilimleri üzerine etkisini belirlemek amacıyla planlanmıştır.
Yöntem: Prospektif tipteki bu araştırmanın evrenini 2020 - 2021 eğitim-öğretim yılı bahar döneminde “Sosyal Medya ve Hemşirelik” dersini alan 93 hemşirelik bölümü 1. sınıf öğrencileri oluşturmuştur. Araştırmanın verileri, “Sosyal Medya ve Hemşirelik” dersi kapsamında, Eleştirel Düşünme Motivasyonu Ölçeği, California Eleştirel Düşünme Eğilimi Ölçeği ve Sosyal Medyaya Özgü Epistemolojik İnançlar Ölçeği aracılığıyla dört defa tekrarlı ölçümler sonucunda toplanmıştır.
Bulgular: Araştırma sonucuna göre, öğrencilerin, sosyal medyaya özgü epistemolojik inançlarının ve eleştirel düşünme motivasyonlarının dört ölçüm sonucuna göre yüksek düzeyde olduğu, eleştirel düşünme eğilimlerinin ise düşük düzeyde olduğu saptanmıştır. Sosyal medyaya özgü epistemolojik inançlar, eleştirel düşünme motivasyonu ve eleştirel düşünme eğiliminin 1. ve 4. ölçümleri arasında pozitif yönde anlamlı ilişki belirlenmiştir.
Sonuç: Öğrencilere bilgiyi sorgulama, bilginin kaynağına ulaşma ve doğru bilgiyi seçme, eleştirel düşünme gibi becerileri kazandıracak seçimlik derslerin hemşirelik eğitim programlarına eklenmesi ve derslerde, öğrencileri düşünmeye ve sorgulamaya yönelten öğretim yöntemlerinin kullanımına daha fazla yer verilmesi önerilebilir.
V1507 CYGNI (HD187399): A Highly Evolved, Enigmatic Interacting Binary System with an Eccentric Orbit
Authors: Davidge T. J. 
Published: October 2023

Abstract
The properties of the interacting, eccentric orbit binary V1507 Cyg (HD187399) are examined with spectra that cover wavelengths from 0.63–0.68 μm. The spectrum of the brightest star is similar to that of the B8 I star β Ori, although with absorption lines that show substructure possibly related to a varying tidal field. The bulk of the Hα emission in the spectrum appears to be associated with this star. Evidence is presented that the period of the system has been stable over timescales of many decades, arguing against large-scale mass transfer at the current epoch. Absorption and emission lines are identified that originate in an expanding asymmetric envelope around the companion, and component masses of 6.4 ± 0.9 and 14.0 ± 0.9 M
⊙ are found, where the former applies to the brighter star and an inclination of 46° has been assumed. Mass transfer has thus progressed to the point where the mass ratio has reversed. It is argued that the brighter star is an α Cyg variable, and that it is those light variations that dominate the system light curve. V1507 Cyg is observed at or near the center of a diffuse H i bubble that is detected at 408 and 1420 MHz. It is suggested that the eccentric orbit is the result of evolution in a hierarchical system, in which a now-defunct massive third body recently disturbed the orbit of the stars in V1507 Cyg, thereby disrupting mass transfer.
Cross Correlation of Pencil-beam Galaxy Surveys and Line-intensity Maps: An Application of the James Webb Space Telescope
Authors: Visbal Eli , McQuinn Matthew 
Published: October 2023

Abstract
Line-intensity mapping (IM) experiments seek to perform statistical measurements of large-scale structure with spectral lines such as 21 cm, CO, and Lyα. A challenge in these observations is to ensure that astrophysical foregrounds, such as galactic synchrotron emission in 21 cm measurements, are properly removed. One method that has the potential to reduce foreground contamination is to cross correlate with a galaxy survey that overlaps with the IM volume. However, telescopes sensitive to high-redshift galaxies typically have small field of views compared to IM surveys. Thus, a galaxy survey for cross correlation would necessarily consist of pencil beams that sparsely fill the IM volume. In this paper, we develop the formalism to forecast the sensitivity of cross correlations between IM experiments and pencil-beam galaxy surveys. We find that a random distribution of pencil beams leads to very similar overall sensitivity as a lattice spaced across the IM survey and derive a simple formula for random configurations that agrees with the Fisher matrix formalism. We explore examples of combining high-redshift James Webb Space Telescope (JWST) observations with both an SPHEREx-like Lyα IM survey and a 21 cm experiment based on the Hydrogen Epoch of Reionization Array (HERA). We find that the JWST-SPHEREx case is promising, leading to a total signal-to-noise ratio of ∼5 after 100 total hours of JWST (at z = 7). We find that HERA is not well-suited for this approach owing to its drift-scan strategy, but that a similar experiment that can integrate down on one field could be.
Quantifying Poynting Flux in the Quiet Sun Photosphere
Authors: Tilipman Dennis , Kazachenko Maria , Tremblay Benoit , Milić Ivan , Martínez Pillet Valentin , Rempel Matthias 
Published: October 2023

Abstract
Poynting flux is the flux of magnetic energy, which is responsible for chromospheric and coronal heating in the solar atmosphere. It is defined as a cross product of the electric and magnetic fields, and in ideal MHD conditions it can be expressed in terms of the magnetic field and plasma velocity. Poynting flux has been computed for active regions and plages, but estimating it in the quiet Sun (QS) remains challenging due to resolution effects and polarimetric noise. However, with the upcoming DKIST capabilities, such estimations will become more feasible than ever before. Here, we study QS Poynting flux in SUNRISE/IMaX observations and MURaM simulations. We explore two methods for inferring transverse velocities from observations—FLCT and a neural network–based method DeepVel—and show DeepVel to be the more suitable method in the context of small-scale QS flows. We investigate the effect of azimuthal ambiguity on Poynting flux estimates, and we describe a new method for azimuth disambiguation. Finally, we use two methods for obtaining the electric field. The first method relies on an idealized Ohm’s law, whereas the second is a state-of-the-art inductive electric field inversion method PDFI_SS. We compare the resulting Poynting flux values with theoretical estimates for chromospheric and coronal energy losses and find that some of the Poynting flux estimates are sufficient to match the losses. Using MURaM simulations, we show that photospheric Poynting fluxes vary significantly with optical depth, and that there is an observational bias that results in underestimated Poynting fluxes due to an unaccounted shear term contribution.
Disk and Envelope Streamers of the GGD 27-MM1 Massive Protostar
Authors: Fernández-López M. , Girart J. M. , López-Vázquez J. A. , Estalella R. , Busquet G. , Curiel S. , Añez-López N. 
Published: October 2023

Abstract
We present new Atacama Large Millimeter/submillimeter Array 0.98 mm observations of the continuum emission and several molecular lines toward the high-mass protostellar system GGD 27-MM1, driving the HH 80-81 radio jet. The detailed analysis of the continuum and the CH3CN molecular emission allows us to separate the contributions from the dust content of the disk (extending up to 190 au), the molecular content of the disk (extending from 140–360 au), and the content of the envelope, revealing the presence of several possible accretion streamers (also seen in other molecular tracers, such as CH3OH). We analyze the physical properties of the system, producing temperature and column density maps, and radial profiles for the disk and the envelope. We qualitatively reproduce the trajectories and line-of-sight velocities of the possible streamers using a theoretical model approach. An ad hoc model of a flared disk comprising a hot dust disk embedded in cold gas fits the H2S emission, which revealed the molecular disk as a crescent shape with a prominent central absorption. Another fit to the central absorption spectrum suggests that the absorption is probably caused by different external cold layers from the envelope or the accretion streamers. Finally, the analysis of the rotation pattern of the different molecular transitions in the molecular disk suggests that there is an inner zone devoid of molecular content.
Negative Lags on the Viscous Timescale in Quasar Photometry and Prospects for Detecting More with LSST
Authors: Secunda Amy , Greene Jenny E. , Jiang 姜 Yan-Fei 燕飞 , Yao Philippe Z. , Zoghbi Abderahmen 
Published: October 2023

Abstract
The variability of quasar light curves can be used to study the structure of quasar accretion disks. For example, continuum reverberation mapping uses delays between variability in short and long wavelength bands (short lags) to measure the radial extent and temperature profile of the disk. Recently, a potential reverse lag, where variations in shorter wavelength bands lag the longer wavelength bands at the much longer viscous timescale, was detected for Fairall 9. Inspired by this detection, we derive a timescale for these long negative lags from fluctuation propagation models and recent simulations. We use this timescale to forecast our ability to detect long lags using the Vera Rubin Legacy Survey of Space and Time (LSST). After exploring several methods, including the interpolated cross-correlation function, a Von-Neumann estimator, javelin, and a maximum-likelihood Fourier method, we find that our two main methods, javelin and the maximum-likelihood method, can together detect long lags of up to several hundred days in mock LSST light curves. Our methods work best on proposed LSST cadences with long season lengths, but can also work for the current baseline LSST cadence, especially if we add observations from other optical telescopes during seasonal gaps. We find that LSST has the potential to detect dozens to hundreds of additional long lags. Detecting these long lags can teach us about the vertical structure of quasar disks and how it scales with different quasar properties.
The Radiation Environments of Middle-aged F-type Stars
Authors: Cruz Aguirre F. , France K. , Nell N. , Kruczek N. , Fleming B. , Hinton P. C. , Ulrich S. , Behr P. R. 
Published: October 2023

Abstract
Far-ultraviolet (FUV) emission lines from dwarf stars are important driving sources of photochemistry in planetary atmospheres. Properly interpreting spectral features of planetary atmospheres critically depends on the emission of its host star. While the spectral energy distributions (SEDs) of K- and M-type stars have been extensively characterized by previous observational programs, the full X-ray to infrared SED of F-type stars has not been assembled to support atmospheric modeling. On the second flight of the Suborbital Imaging Spectrograph for Transition-region Irradiance from Nearby Exoplanet host stars (SISTINE-2) rocket-borne spectrograph, we successfully captured the FUV spectrum of Procyon A (F5 IV-V) and made the first simultaneous observation of several emission features across the FUV bandpass (1010–1270 and 1300–1565 Å) of any cool star. We combine flight data with stellar models and archival observations to develop the first SED of a mid-F star. We model the response of a modern Earth-like exoplanet’s upper atmosphere to the heightened X-ray and extreme UV radiation within the habitable zone of Procyon A. These models indicate that this planet would not experience significant atmospheric escape. We simulate observations of the Lyα transit signal of this exoplanet with the Hubble Space Telescope (HST) and the Habitable Worlds Observatory (HWO). While marginally detectable with HST, we find that H i Lyα transits of potentially habitable exoplanets orbiting high radial velocity F-type stars could be observed with HWO for targets up to 150 pc away.