bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Machine Learning–based Direction-of-origin Filter for the Identification of Radio Frequency Interference in the Search for Technosignatures
Authors: Pinchuk Pavlo , Margot Jean-Luc 
Published: January 2022

Abstract
Radio frequency interference (RFI) mitigation remains a major challenge in the search for radio technosignatures. Typical mitigation strategies include a direction-of-origin (DoO) filter, where a signal is classified as RFI if it is detected in multiple directions on the sky. These classifications generally rely on estimates of signal properties, such as frequency and frequency drift rate. Convolutional neural networks (CNNs) offer a promising complement to existing filters because they can be trained to analyze dynamic spectra directly, instead of relying on inferred signal properties. In this work, we compiled several data sets consisting of labeled pairs of images of dynamic spectra, and we designed and trained a CNN that can determine whether or not a signal detected in one scan is also present in another scan. This CNN-based DoO filter outperforms both a baseline 2D correlation model and existing DoO filters over a range of metrics, with precision and recall values of 99.15% and 97.81%, respectively. We found that the CNN reduces the number of signals requiring visual inspection after the application of traditional DoO filters by a factor of 6–16 in nominal situations.
Results From an Einstein@Home Search for Continuous Gravitational Waves From G347.3 at Low Frequencies in LIGO O2 Data
Authors: Ming J. , Papa M. A. , Eggenstein H.-B. , Machenschalk B. , Steltner B. , Prix R. , Allen B. , Behnke O. 
Published: January 2022

Abstract
We present results of a search for periodic gravitational wave signals with frequencies between 20 and 400 Hz from the neutron star in the supernova remnant G347.3-0.5 using LIGO O2 public data. The search is deployed on the volunteer computing project Einstein@Home, with thousands of participants donating compute cycles to make this endeavour possible. We find no significant signal candidate and set the most constraining upper limits to date on the amplitude of gravitational wave signals from the target, corresponding to deformations below 10−6 in a large part of the band. At the frequency of best strain sensitivity, near 166 Hz, we set 90% confidence upper limits on the gravitational wave intrinsic amplitude of

h

0

90
%

≈
7.0
×

10

−
26

. Over most of the frequency range our upper limits are a factor of 20 smaller than the indirect age-based upper limit.
A Spectral Survey of CH3CCH in the Hot Molecular Core G331.512-0.103
Authors: Santos Julia C. , Bronfman Leonardo , Mendoza Edgar , Lépine Jacques R. D. , Duronea Nicolas U. , Merello Manuel , Finger Ricardo 
Published: January 2022

Abstract
A spectral survey of methyl acetylene (CH3CCH) was conducted toward the hot molecular core/outflow G331.512-0.103. Our APEX observations allowed the detection of 41 uncontaminated rotational lines of CH3CCH in the frequency range between 172 and 356 GHz. Through an analysis under the local thermodynamic equilibrium assumption, by means of rotational diagrams, we determined T
exc = 50 ± 1 K, N(CH3CCH) = (7.5 ± 0.4) × 1015 cm2, X[CH3CCH/H2] ≈ (0.8–2.8) × 10−8, and X[CH3CCH/CH3OH] ≈ 0.42 ± 0.05 for an extended emitting region (∼10″). The relative intensities of the K = 2 and K = 3 lines within a given K-ladder are strongly negatively correlated to the transitions’ upper J quantum number (r = −0.84). Pure rotational spectra of CH3CCH were simulated at different temperatures, in order to interpret this observation. The results indicate that the emission is characterized by a nonnegligible temperature gradient with upper and lower limits of ∼45 and ∼60 K, respectively. Moreover, the line widths and peak velocities show an overall strong correlation with their rest frequencies, suggesting that the warmer gas is also associated with stronger turbulence effects. The K = 0 transitions present a slightly different kinematic signature than the remaining lines, indicating that they might be tracing a different gas component. We speculate that this component is characterized by lower temperatures and therefore larger sizes. Moreover, we predict and discuss the temporal evolution of the CH3CCH abundance using a two-stage zero-dimensional model of the source constructed with the three-phase Nautilus gas-grain code.
Biodiversity of macrophyte communities and associated aquatic organisms in lakes of the Vologda Region (north-western Russia)
Authors: Philippov Dmitriy , Ivicheva Ksenya , Makarenkova Nadezhda , Filonenko Igor , Komarova Aleksandra 
Published: January 2022

This paper provides current data on the biodiversity of boreal lakes of the Vologda Region (north-western Russia), including macrophytes (vascular plants and macroscopic algae) and macrophyte inhabitants (invertebrates and microalgae). The raw data, given in two datasets (Sampling event dataset and an Occurrence dataset) and presented in the form of GBIF-mediated data, were collected from 139 lakes (macrophytes between 2005 and 2021, macrophyte inhabitants between 2014 and 2020). The dataset contains materials on the diversity of vascular plants (Tracheophyta, 3225 occurrences; Bryophyta, 155; Marchantiophyta, 16), macro- and microalgae (Ochrophyta, 546 occurrences; Chlorophyta, 193; Charophyta, 153; Cyanobacteria, 139; Cryptophyta, 86; Myzozoa, 33; Euglenozoa, 27; Rhodophyta, 8; Bigyra, 1) and aquatic invertebrates (Arthropoda, 1408 occurrences; Annelida, 487; Mollusca, 263; Platyhelminthes, 36; Cnidaria, 11). This paper summarises previously unpublished materials in a standardised form.
The paper summarises the data collected during the long-term phytodiversity studies in a series of lakes of different types (Vologda Region, north-western Russia). Data on algae and invertebrates diversity were obtained in 60 different plant communities of aquatic, semi-aquatic and coastal plants or their combinations. A total of 6787 occurrences were included in the dataset, published in the global biodiversity database (GBIF) for the first time. According to the GBIF taxonomic backbone, the dataset comprised 837 taxa, including 711 lower-rank taxa (species, subspecies, varieties, forms). New records of 47 species rare and protected in the Vologda Region are given: 43 species of plants, three species of animals and one species of Cyanobacteria.
Multiple irregularities and thrombus in a patient with COVID-19 presenting with ST-segment elevation myocardial infarction: a case report
Authors: Shah Bhupesh , Shah Harshal , Shah Darshil 
Published: January 2022

Background: Multiple thrombi are likely to develop in Coronavirus Disease 2019 (COVID-19) patients. Hence, achieving successful outcomes following catheterization becomes quite challenging in such patients.
Case presentation: We report a challenging case of a 36-year-old female with ST-Segment Elevation Myocardial Infarction (STEMI). Coronary angiography revealed multiple irregularities in the coronary tree as well as thrombi. Although computed tomography imaging of the thorax was normal, reverse transcription-polymerase chain reaction (RT-PCR) confirmed the diagnosis of COVID-19. The outcome was good TIMI flow after a successful Primary Angioplasty in Acute Myocardial Infarction (PAMI), and the patient was isolated and then switched to oral anticoagulants (clopidogrel) for dual antiplatelet therapy (DAPT) therapy.
Conclusion: This case emphasizes the management of a COVID-19 patient for PAMI.
Pengaruh Promosi, Kualitas Pelayanan, dan Implementasi Syariah terhadap Minat Masyarakat Menggunakan Jasa Pegadaian Syariah
Authors: Ruhaniah Nia , Tanjung Hendri , Hakiem Hilman 
Published: January 2022

This study aims to determine how much influence the promotion, service quality, and implementation of sharia has on people's interest in using sharia pawnshops. This study uses quantitative methods by distributingquestionnaires online or google forms to respondents with criteria aged 20-40 years and knowing about sharia pawnshops. This research was conducted in the city of Depok with a total of 100 respondents. In this study, it was found that the promotion and service quality variables had a significant effect, while the sharia implementation variable had no significant effect. In addition, in this study it was also found that the Y variable could be explained by 71.3% by the X variable. and the remaining 28.7% was explained by other variables outside the study.
Keyword: Promotion, Service Quality, Syariah Implementation, and Interest
Pengaruh Literasi Keuangan Syariah, Islamic Branding, dan Religiusitas terhadap Keputusan Mahasiswa Dalam Menggunakan Jasa Perbankan Syariah
Authors: Salim Fajriah , Arif Suyudi , Devi Abrista 
Published: January 2022

This study aims to determine the effect of Islamic financial literacy, Islamic branding, and religiosity on student decisions in using Islamic banking services. The dependent variable in the study is student decisions, while the independent variables are Islamic financial literacy, Islamic branding, and religiosity. The data in this study were collected through questionnaires distributed to active FAI students class 2017-2018 who had transacted using Islamic banks. The research method used is quantitative. The population in this study are active students of FAI class 2017-2018 who have transacted using Islamic banks, with data collected totaling 100 respondents. The data analysis tool used in this study uses the Partial Least Square (PLS) approach. The results of this study indicate that there is a positive and significant influence of the Islamic financial literacy variable, Islamic branding on student decisions in using Islamic banking services, while the religiosity variable has a positive but not significant effect on student decisions in using Islamic banking services.
Keywords: Using Islamic Banking Services, Islamic Financial Literacy, Islamic Branding, Religiosity, and Student Decisions
Analisis Mekanisme dan Penerapan Akad pada Pembiayaan Kepemilikan Emas:
Authors: Gunawan Teguh , Kosim Ahmad Mulyadi , Sutisna Sutisna 
Published: January 2022

Gold is becoming an attractive commodity as an investment option in the future. Gold is also an item with a high demand and many benefits ranging from asset protection, precautionary interests, Hajj savings needs, and investments. Islamic banks then see this potential by providing gold ownership financing products. The financing of gold ownership can be accommodated by Islamic banks. Purchases with the installment method can be done and become an alternative way for people to be able to invest in gold commodities. Gold becomes attractive on the basis of the consideration that gold is an object that has a value that tends to be stable so that it can be useful as a protector of property from the risk of inflation. This study uses qualitative research with a qualitative descriptive approach. The data collection technique used is the interview and documentation method. Interviews were conducted with BJB Syariah Bank Pajajaran Branch. The results showed that the mechanism and application of the contract on gold ownership financing products at the Pajajaran branch of BJB Syariah Bank generally involved third parties as suppliers who provided goods in the form of gold which became the object of the transaction. The contracts used in this product are Murabahah and Rahn contracts, Murabahah contracts for gold ownership financing products at Bank BJB Syariah Pajajaran Branch, namely for buying and selling gold between customers and BJB Syariah banks with agreed agreements and margins. While the rahn contract is for storing gold until a predetermined time.
Keywords: Gold Ownership Financing, Murabahah Contract, Rahn Contract
Efecto de los microorganismos eficaces (me), en la crianza de tilapia nilótica
Authors: Ríos-Ramírez Orlando , Bardales-del-Aguila Lionel 
Published: January 2022

Los alevines de tilapia nilótica fueron criados en el Centro Agropecuario Miraflores, se crio 3000 unidades de tilapias, estos fueron en un estanque general y luego fueron distribuidos en tres estanques, haciendo un total de 1 000 tilapias por estanques, la densidad de siembra fue 4 tilapias / m2. La alimentación fue en base a un producto comercial cuya dieta de alimentación fue de dos veces al día, esto fue para todos los tratamientos. Se utilizó un diseño completamente al azar, la duración del experimento fue de 120 días, los tratamientos fueron los siguientes; estanque 1 (testigo), estanque 2 (EM en el agua), estanque 3 (EM en el alimento), la alimentación fue en base a un producto comercial en el caso del estanque 3 se adicionó el producto comercial más el EM. Se evaluó el 5 % de la población del estanque que son 50 tilapias, las evaluaciones de biomasa y conversión alimenticia se hizo semanalmente, teniendo 16 evaluaciones. Los resultados fueron analizados en cada variable mediante la prueba de medias y desviación estándar, varianza. Se mejoró la calidad de agua en el estanque 1 y 2 con el uso de microorganismos eficientes, teniendo mejor parámetro en turbidez, oxígeno disuelto, ph y reducción de amonio. El aprovechamiento del recurso hídrico en los estanques 2 y 3 fue mayor la que nos brindó parámetros superiores al estanque. El uso de microorganismos eficientes (ME), redujo hasta en un 88% de microorganismos patógenos en el estanque 2 y un 53% en el estanque 3. Se aumentó el rendimiento de la conversión alimenticia con el uso de microorganismos eficaces, teniendo mejor índice en el estanque 3.
CAPITAL ADEQUACY AND DEPOSIT MONEY BANK'S RETURN ON ASSET (ROA) IN NIGERIA
Authors: Adeoti  , Akinroluyo, Bankole Isaac 
Published: January 2022

This study investigated capital adequacy and Deposit Money Bank's (DMB) Return on Asset (ROA) in Nigeria in which the effect of capital to asset ratio on bank's profit margin and the relationship between solvency and asset turnover was examined. The study population of the study comprised Nigeria deposit money banks listed on the floor of Nigeria Stock Exchange as at 2021. Sample of bank selected was Zenith Plc, Guaranty Trust Bank Plc (GTB), First Bank Nigeria Limited, Access Bank Plc, and United Bank for Africa Plc based on global ranking order and the fact that they are listed on Nigeria Stock Exchange. To determine the effect of capital adequacy on banks performance, Ordinary Least Square (OLS) regression model was employed the data collected within the period of 2006-2020. The findings of this study revealed coefficient of 0.080034 implies 1% change in capital to asset ratio would lead to 8% increase change in profit margin ratio and p-value of 0.042223 shows that CTA has statistical significant effect on profit margin of the selected banks within the period under study; coefficient of 0.04587 implies 1% change in solvency would lead to 4.58% change in asset turnover of the selected DMBs under the period studied, p-value of 0.0000611 shows that SOLV has statistical significant relationship with ATU of the selected banks within the period under study. The study recommends bank decision makers should give consideration for its solvency status and capital to asset ratio when investigating factors affecting bank’s actualization objective. In addition, DMBs in Nigeria should ensure that they maintain above minimum capital to asset ratio level in order to guarantee an efficient profit margin. Also, the ability of DMBs to meet their short and medium term financial obligations must be fortified in order to keep the performance at per.
Keywords: Capital Adequacy, Return on Asset, Capital to Asset Ratio, Solvency, Profit Margin and Asset Turnover.
Capture Codes for Better Geology
Authors: Williams Dean K. 
Published: January 2022

Abstract
Automated core logging technology is starting to replace geologists in the core shed. Often-cited justifications for this include increased speed, multivariate sensors, and the perception that manual logging can be subjective and produces inconsistent data. An alternative is to keep the geologists and replace subjectivity with objectivity. The common practice of selecting lithology from a predetermined list of rock types can force subjective decisions. These lead to data inconsistencies that tend to increase as the rocks become progressively hydrothermally altered. A system of capture codes following the maxim, “first observe, then interpret,” is proposed as a tool to improve coding consistency and collect geologic data with greater resolution. The codes capture empirical geologic observations in a systematic and comprehensive fashion to produce a compact, computer-friendly format that facilitates data synthesis, analysis, and 3-D visualization. Capture codes do not replace any existing project or standardized company summary codes for rock types, alteration facies, or degree and style of mineralization. They capture the underlying, specific geologic observations required to make correct and consistent summary code categorizations. In other words, capture codes are empirical data, while summary codes are often subjective labels. Utilization of the codes improves the understanding of the project geology and consistency in coding between geologists, while simultaneously strengthening their field skills. After reading this article, a geologist should be able to pick up any rock and capture code the lithology and, if applicable, its alteration and mineralization as well.
On some characteristic features of daily rainfall over Madhya Maharashtra
Authors: AGASHE P. S. , PADGALWAR K. V. 
Published: January 2022

Information in processed form, is often needed to meet the demands in agriculture, hydrology and other water-related human activities. In this context, daily rainfall continue to be of prime importance since it is the daily rainfall which, when accumulated gives weekly, monthly or seasonal totals. This paper deals with some of the characteristic features of daily rainfall at nine selected stations in Madhya Maharashtra. The study is based on daily rainfall data of June to September months for 10 years (1991-2000).
Depending upon rainfall amounts (or lack of it), a day has been categorized as rainy day, drizzle day or dry day. Making use of the concept of evapotranspiration, rainy day has been further divided into crop rainy day. Distribution of these various classes of days, their contribution to monthly totals and relationship among them, have been obtained and discussed. The rainy days have been used to obtain mean daily rainfall intensity and its association with monthly rainfall, examined through a series of regression equations. Frequency of heavy falls i.e., rainfall exceeding 25 mm in a day have been determined and its contribution to monthly rainfall, evaluated.
There seems to be a tendency for the rainy days and the rainfall to be below normal in recent years. Perfectly dry weather could prevail nearly half of June and July months over the region. Heavy rainfall contributes substantially to the monthly total. During June and September mean daily rainfall intensity is perhaps weakly related with the monthly rainfall.
Role Of Ultrasound In Assessment Of Endometrial Thickness In Secretory Phase Of Infertile Females
Authors: Zahra Hurmat , Farooq Syed Muhammad Yousaf , Tul Sughra Syeda Khadija , Asad Naveed , Nimra  , Ul Din Hassam , Zainab Aneeqa , Latif Kiran , Un Noor Kashaf 
Published: January 2022

Infertility in women is caused by a variety of hereditary and acquired uterine problems. Ultrasound has been found to be a good, quick, safe, and cost-effective way to assess the size, quantity, and location of abnormalities and to measure endometrial thickness in different phases of menstrual cycle.Objective: The main objective of this study wasto evaluate roleof ultrasound in assessment of endometrial thickness in infertile females of secretory phase. Methods: This is a descriptive study, including eighty two females age 24 to 46 years from University ultrasound clinic, Lahore after the approval of ethical committee of Allied health sciences, University of Lahore. Informed consent was taken before including the subjects in the study. Data was collected according to data collection sheets. Results: The results showed that primary infertility (54.9%) is more in females than secondary infertility (45.1%). There were 10(47.6%) females in primary infertility with 9-12mm endometrial thickness and 11(52.4%) in secondary infertility. 24(57.1%) females in primary infertility with 13-16mm endometrial thickness and 18(42.9%) in secondary infertility. 11(68.8%) females in primary infertility with 17-20mm endometrial thickness and 5(31.3%) in secondary infertility. 3(100%) females in secondary infertility with 21-24mm endometrial thickness.Conclusion: Female patients who initially taking infertility treatment had less endometrial thickness in proliferative phase; their endometrial thickness maybe increased in early secretory phase or at 21st day of their menstrual cycle but they had lost their chance to conceive the pregnancy in proliferative phase due to less endometrial thickness. The females should know the normal endometrial thickness in different phases of their menstrual cycle to conceive the pregnancy. This study shows ultrasound plays a vital role in detecting endometrial thickness in infertility treatment.
Changes in Czech Family Law in Light of the Principles of European Family Law
Authors: Králíčková Zdeňka 
Published: January 2022

Czech family law has recently been re-codified as part of the new Civil Code. The intention of its main drafters was to build on the values and traditions of Christian-Jewish culture in the Czech Republic and to enrich Czech family law with a new dimension, especially in relation to international human rights conventions and developments in the field of human rights in general. Some sections have also been significantly influenced by the Principles of European Family Law (PEFL) developed by the Commission on European Family Law (CEFL) aiming at ‘better law’ and the harmonization of family law systems in Europe. It was stressed that the Principles of European Family Law regarding Divorce and Maintenance Between Former Spouses, the Principles of European Family Law regarding Parental Responsibilities and the Principles of European Family Law regarding Property Relations Between Spouses were published during the time of recodification of the new Civil Code and took into consideration. However, the Principles of European Family Law regarding the Property, Maintenance and Succession Rights and Duties of Couples in de facto Unions were published later. It is unclear whether the concept of unmarried cohabitation will be a challenge for Czech legislators. One can agree with the view that the new private law code should, in principle, cover all private law matters, including family law, as is customary in countries with comparable legal environments. And finally, the article was focused on the pending drafts, as developments in this area are not over, as further changes are on the way.