bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cosmic Reionization On Computers: The Galaxy–Halo Connection between 5 ≤ z ≤ 10
Authors: Zhu 朱涵 Hanjue 珏 , Avestruz Camille , Gnedin Nickolay Y. 
Published: August 2020

Abstract
We explore the connection between the stellar component of galaxies and their host halos during the epoch of reionization (5 ≤ z ≤ 10) using the CROC (Cosmic Reionization on Computers) simulations. We compare simulated galaxies with observations and find that CROC underpredicts the abundance of luminous galaxies when compared to observed UV luminosity functions, and analogously the most massive galaxies when compared to observed stellar mass functions. We can trace the deficit of star formation to high redshifts, where the slope of the star formation rate to stellar mass relation is consistent with observations, but the normalization is systematically low. This results in a star formation rate density and stellar mass density that are systematically offset from observations. However, the less luminous or lower stellar mass objects have luminosities and stellar masses that agree fairly well with observational data. We explore the stellar-to-halo mass ratio (SHMR), a key quantity that is difficult to measure at high redshifts and that models do not consistently predict. In CROC, the SHMR decreases with redshift, a trend opposite to some abundance-matching studies. These discrepancies uncover where future effort should be focused in order to improve the fidelity of modeling cosmic reionization. We also compare the CROC galaxy bias with observational measurements using Lyman-break galaxy samples, finding reasonable consistency.
Structure and Spectroscopic Properties of Hydrocalcium Isocyanide Isomers: Plausible Astronomical Ca-bearing Molecules
Authors: Redondo Pilar , Largo Antonio , Barrientos Carmen 
Published: August 2020

Abstract
Recently, the first Ca-bearing molecule discovered in space, calcium isocyanide, CaNC, has been detected in the IRC+10216 circumstellar envelope. Related to CaNC are closed-shell stable molecules of [C, Ca, H, N] composition. One of the isomers with this composition is hydrocalcium isocyanide, HCaNC, which belongs to the hydrometal isocyanide/cyanide group of compounds, among which hydromagnesium isocyanide, HMgNC, is, to date, the only one detected in space. In this work, we have performed a study of the [C, Ca, H, N] isomers that are systems of possible interstellar interest by using quantum theoretical methodologies. The analysis of the relative energies predicts three low-lying isomers: c-HCa–NC (1A′), hydrocalcium isocyanide, HCaNC (1Σ), and hydrocalcium cyanide, HCaCN (1Σ). At the composite level, HCaNC (1Σ) and HCaCN (1Σ) were located 0.87 and 4.84 kcal mol−1, respectively, above the c-HCa–NC (1Σ) isomer. Interconversion processes between these isomers have been studied to analyze their stability. Isomer HCaNC is characterized as a transition state and thus directly isomerizes to the c-HCa–NC minimum. The isomerization process of HCaCN → c-HCa–NC shows a small barrier of about 0.76 kcal mol−1 (∼382 K) above HCaCN, at the highest level of theory employed in this work, suggesting that HCaCN could easily isomerize into the most stable isomer, c-HCa–NC. Our results predict two low-lying isomers, namely, c-HCa–NC (1A′) and hydrocalcium cyanide, HCaCN (1Σ), as possible candidates for experimental or radioastronomical detection. For these isomers, we provide predictions for their vibrational and rotational spectroscopic parameters that could aid in their eventual characterization in the laboratory or in space.
Nuclear Structures of 17O and Time-dependent Sensitivity of the Weak s-process to the 16O(n,γ)17O Rate
Authors: He Meng , Zhang Shi-Sheng , Kusakabe Motohiko , Xu Sizhe , Kajino Toshitaka 
Published: August 2020

Abstract
We revisit the radiative neutron capture reaction 16O(n,γ)17O of astrophysical interest, based on the new reevaluated cross-section data. Several potentials are proposed to predict direct capture cross sections. The contributions from single-particle resonances to total capture cross section are quantitatively considered in Breit–Wigner formalism, taking into account the interference term between direct capture and resonant cross sections, which is crucial for the description of the behavior around the resonance energies. A new cross section is achieved based upon χ
2-fittings for optimized resonance parameters using Minuit code, and it has a largely improved agreement with updated experimental data. Statistical errors are also evaluated for the total and Maxwellian-averaged cross sections. It is confirmed that the direct captures dominate the total cross sections; however, resonant contribution also becomes progressively more important as the energy increases to 100 keV. Resonance contribution can increase the reaction rates for energy region 50 keV < E < 100 keV by 5% ± 5%–25% ± 5%, and around 8% ± 5% in comparison with KADoNiS v0.3 rate and the latest data evaluations, respectively. We show a detailed propagation of the uncertainty in the 16O(n,γ) reaction rate to abundances of nuclei, including s-nuclei during the weak s-process with a multi-zone nuclear network calculation. Although an enhanced rate of 16O(n,γ) diminishes the s-process efficiency in the 25 M
☉ stellar model adopted from the Modules for Experiments in Stellar Astrophysics, it can lead to larger abundances of neutrons as well as 22Ne in the late epoch of C burning.
Regularity theory of Kolmogorov operator revisited
Authors: Kinzebulatov Damir 
Published: August 2020

AbstractWe consider Kolmorogov operator

$-\Delta +b \cdot \nabla $
with drift b in the class of form-bounded vector fields (containing vector fields having critical-order singularities). We characterize quantitative dependence of the Sobolev and Hölder regularity of solutions to the corresponding elliptic equation on the value of the form-bound of b.
Psycho-Cognitive Predictors of Eye Healthcare Seeking Behaviours among Secondary School Students in South-West Nigeria
Authors: Aham-Onyebuchi Ugochi O. , Atulomah Nnodimele O. 
Published: August 2020

Purpose: Poor eye healthcare seeking behaviour remains a global challenge among youth populations, especially in sub-Saharan Africa. This has further impeded global efforts in eliminating avoidable causes of blindness among at-risk individuals and directly accounts for poor outcomes in their quality of life and the potentials of their contribution to economic development. This study sought to investigate the psychocognitive predictors of eye healthcare seeking behaviours of secondary school students in a semi-urban community of south-west Nigeria.Methods: This was a cross-sectional survey design that adopted a multistage sampling technique to collect data in respect of demographic characteristics and psycho-cognitive disposition of 422 consenting students attending eight secondary schools in Ikenne LGA, Ogun State. A self-administered 57-item validated instrument was used for data collection. Data collected were analyzed using descriptive statistics of frequency, tables, means, standard deviation and multiple regression with statistical significance at 5% level.Results: Demographics of the respondents revealed that 44.3% were between the ages of 15 and 17 while 56.4% of the respondents were female. Psycho-cognitive disposition of respondents comprising knowledge of eye care, attitudinal disposition towards eye care were significant predictors (p≤.0001), while perceived threat/susceptibility to eye infections was also a significant predictor (p=.017).Conclusion: The eye healthcare seeking behaviours of secondary school students in the study remained poor. Quality eye health education on good ocular hygiene and promotion programmes need to be conducted for the students to increase their eye healthcare seeking behavior.
Keywords: Eye healthcare seeking, blindness, cognitive factors
Accommodative-Convergence Mechanism failure in HIV-Positive Non Presbyopic Patient on Highly Active Anti-Retroviral Therapy: A case report
Authors: Hassan Sadiq , Ebisike Philips I. , Timothy Christopher O. , Chedi Basheer A.Z. , Sani Rabi Y. , Habib Saudat G. 
Published: August 2020

Purpose: Accommodative-convergence mechanism failure could occur in non presbyopic HIV- sero positive patients on Highly Active Anti-Retroviral Therapy (HAART). This could be due to either direct neuronal infection by HIV, pathologic changes of the lens or the ciliary body or adverse effects of some individual drugs constituting the HAART regimen on the cranial nerves which play vital roles in the mechanism of accommodation and convergence.
Case report: This is a case report of an accommodative- convergence mechanism failure in HIV positive non presbyopic 32-year-old male patient that was on HAART for more than five years. He presented with distance visual acuity (VA) of OD: 6/9 +2, OS: 6/9, and near visual acuity (NVA) of N24 both eyes, 3Δ esophoria at distance and 4Δ esophoria at near. Amplitude of accommodation (AA) was 3.50D and accommodative convergence/accommodation (AC/A) ratio was 6/1. Following comprehensive evaluation, his refractive correction was OD: Plano/-0.50DC X 180 6/5 and OS: Plano/-0.50DC X 90 6/5 at distance with near addition (Add) 2.50D N5. This was prescribed for regular wear in form of D-Top bifocal lens.
Conclusion: These findings showed that HIV sero-positive adults on HAART could develop accommodativeconvergence mechanism failure, which may be characterized by low amplitude of accommodation, receded near point of convergence and high non presbyopic reading addition. These conditions may be under-recognized and need for reading addition of a non presbyopic age is often overlooked.
Key Words: Accommodative-Convergence, HIV, Lateral Phoria, Refractive error.
A Comparative Analysis of the Activities of “5+1” Formats’ Launched in Central Asia with Participation of the US, Republic of Korea, Japan, and the EU
Authors: Alekseenkova E. 
Published: August 2020

Central Asia as a region has become a subject of scientific research not so long ago. Complicated historic background that includes the long period of being a part of another states influenced rather seriously the feeling of subjectivity of the countries of the region. As a result, after the collapse of the USSR in 1991 a difficult period commenced when the countries of the region started to construct their own political and economic relations with foreign counterparts including their neighbors, regional and global powers. During this more then 25-years long period of independence countries of Central Asia have accumulated rich experience of interaction with the US, China, Russia, the EU, Japan, South Korea and other states interested in the region in terms of their own national interests.Besides bilateral relations with Central Asian states some of these countries are trying now to develop multilateral formats of interaction with the region. Divergent national interests, peculiarities of socioeconomic and political development of Central Asian states inevitably influence their relations with other countries and the efficiency of multilateral formats. “5+1” dialogues with Central Asian states are being developed by the US, the EU, Japan and South Korea. These formats differ in their goals, mechanisms, areas of cooperation and give participants possibilities to realize different national interests.The paper presents an analysis of these formats aiming to reveal the principal interested actors, preliminary results and possibilities for further development. The analysis could be helpful for strategic planning of Russia’s approaches to relation with Central Asian states.
India’s Approaches to the Problem of Energy Security
Authors: Artyushkin V. , Parshin P. 
Published: August 2020

Since the ration between production and consumption of electricity in the context of present and future demands of various countries determines the level of their energy security, it is this ration which is the main object of the research reported in the article. The case of India, with its huge population, rapid economic growth of the last decade and obvious scarcity of energy resources is of special interest and importance. The consideration of different indicators of demographic situation in the country shows that the number of population and the dynamics of its growth are still the main factors which determine prospects for solution of India’s energy security problem -The paper analyses the situation of energy demand and supply across all sources of energy available to India and identify the directions along which the most effective and efficient projects can be realized. Due to its obvious peculiarities, a special attention is paid to the nuclear program of Indian, and, particularly, to the supply of Uranium necessary for instigation of nuclear energy production. The importance of the current moment is emphasized, when, in the context of limited energy resources, both Indian Government and society should decide what segments of population and branches of economy are to be given priorities to in meeting their growing demands, and how the priorities can be realized.
Jewish extremist and terrorist organizations in Israel
Authors: Krylov A. V. 
Published: August 2020

This article is an extension of the research material published in the previous issue of the Journal “International Analytics” (2016, vol. 3 (17), p. 45–58), and focused on the activity of the Jewish paramilitary groups in Palestine before the establishment of the State of Israel in 1948. Originally the conspiratorial Jewish extremist organization opposed the policy of the Jewish immigration restraint which had been carried out by the socialist countries, especially the USSR. Some ultra-Orthodox groups, such as the Union of Zealots, used openly the terrorist methods in the struggle against the development of Israel as a secular and democratic state. After the war of 1967 and the Israeli occupation of the Arab territories the orthodox-nationalists, who formed the vanguard of the “Movement for Greater Israel”, created an underground network of extremist armed organizations. From the beginning, the activities of these groups were contrary to the Israeli Law on the Fight against Terror. The term commonly used for the Jewish underground groups in Hebrew is “mahteret”. There have been several dozen groups of this kind in the history of the Israeli settlements movement. The most famous of them are “Kach” (“Thus”) and “Kahane Chai” (“Kahane Lives”).The initiator and inspirer of the “Jewish Underground” was an American Orthodox Rabbi Meir Kahane. He founded a political settlement party “Kach” which had legally existed until in 1988 a ban on the list of its candidates in the parliamentary elections was imposed by the Supreme Court of Israel because of the accusations of the denial of the democratic character of the state of Israel and the promotion of racism. The activities of both organizations were declared terrorist and banned in the USA and some other countries.The article analyses religious, philosophical and political routes of the modern ideology of Israeli orthodox nationalists who participate in the settlement movement on the occupied Arab territories as well as the illegal activities of the most famous parties and organizations supporting the policy of the extension of the Israeli jurisdiction over the occupied Arab territories.
The U.S. and Allies’ Forward-Based BMD Systems: An Emerging Threat to Strategic Stability
Authors: Kuznetsov I. 
Published: August 2020

The subject of this expert study is an evaluation of risks and potential threats of globalization of the U.S. and the allied BMD systems as well as of their sea-based deployments as the most important component of integrated forward-based BMD systems. Negative consequences of the large-scale deployments of these systems for negotiating strategic arms limitations as well as for reversibility of the existing treaties are evident in the midterm perspective.The versions of “moderate” qualitative and quantitative estimations of these plans and programs promoted by the U.S. and allied countries allow to become firmly convinced about intentions to create the phenomena of “a window of vulnerability” for the Russia’s SLBM and ICBM retaliation potential. This temporal interval tends to widen, owing to a lower limit by a deployment closer to seashore of defense installations and objects in the depth of territory, as well as, by a shorter time-reaction to launches of the strategic retaliation forces by sea-based BMD’s.The most possible scenarios of the deployment of ships equipped with BMD’s and organized in groups that are engaged in “active-offensive” missions show the unavoidable necessity to include “a less favorable scenario” in the Russia’s strategic planning. The calculations adduced by the author give serious grounds to suggest that realization of corresponding plans of shipbuilding and deployments in the mid-term perspective will create conditions for reversibility of the existing strategic balance and totally undermine negotiating processes on arms control.
PENGARUH BESAR ARUS PENGELASAN TERHADAP KEKUATAN TARIK SABUNGAN LAS KAMPUH I
Authors: Muddin Saripuddin , Rival Rival , Akbar Akbar 
Published: August 2020

Kemajuan di bidang industri dewasa ini adalah salah satu wujud perkembangan teknologi, khususnya teknologi pengelasan yang semakin maju dan pesat.Secara luas penggunaan teknologi ini telah dipergunakan dalam penyambungan logam pada konstruksi bangunan dan konstruksi mesin.Di samping untuk pembuatan konstruksi baja, proses las juga dapat dipergunakan untuk reparasi misalnya untuk mengisi lubang-lubang coran, membuat lapisan keras pada perkakas, mempertebal bagian-bagian yang telah haus, dan reparasi lainnya. Metode penelitian Proses pembuatan specimen uji dilakukan dengan langkah – langkah sebagai berikut: Membuat specimen uji dengan menggunakan gergaji besi atau gerinda dengan ukuran yang telah di tentukan sesuai dengan standar pengujian 80 mm x 12 mm x 6 mm sebanyak 12 spesimen uji. Membuat model variasi kampuh yang telah ditentukan yaitu kampuh I, kampuh V dengan masing – masing sudut 300 dan kampuh X dengan masing - masing sudut 60o. Hasil Penelitian Nilai kekuatan tarik sambungan las kampuh I lebih tinggi di bandingkan dengan kampuh V, dan kampu X. dimana kekuatan tarik sambungan kampuh I sebesar 50,29 kgf/mm2, kampuh V 47,29 kgf/mm2, dan kampuh X sebesar 44,72 kgf/mm2 hal ini sebabkan lebih meratanya distribusi logam las dengan distribusi yang lebih kecil. Setiap peningkatan besar arus pengelasan pada setiap variasi kampuh mengakibatkan penurunan nilai kekuatan tarik hal ini sebabkan oleh laju pendingin yang lambat proses pendinginan yang lambat tersebut menjadi penyebab turunnya tingkat kekuatan tarik material.
PENGARUH SINYAL TERIMA GPS UNTUK APLIKASI LAND MOBILE SATELIT PADA WILAYAH URBAN DAN SUB URBAN
Authors: Karim Saktiani , Hasanuddin Zulfajri , Baharuddin Merna 
Published: August 2020

Teknologi Informasi dan Telekomunikasi saat ini merupakan teknologi yang memiliki
perkembangan yang sangat cepat, hal ini didasari oleh kebutuhan manusia dalam berbagai aspek
kehidupan seperti bisnis, pendidikan, industri dan sebagainya. Kebutuhan akan infomasi,
penyampaian dan penerimaan pesan, mobilitas, hasil kerja yang akurat dan teliti, serta berbagai
permasalah lain dalam modernisasi kehidupan itulah yang mendorong perkembangan teknologi
dengan cepat contohnya adalah teknologi pemetaan lokasi bumi atau biasa disebut GPS. Penelitian
ini bertujuan untuk Mengetahui karakteristik propagasi sinyal GPS pada daerah rural, urban, dan
sub urban dalam hal ini pada daerah Kotamadya Pare-Pare dan Kabupaten Sidrap dan menentukan
lokasi yang dapat digunakan oleh user untuk mendapatkan hasil yang maksimal (signal strength
yang baik). Pengukuran sinyal terima oleh perangkat penerima GPS garmin dilakukan dengan
menggunakan program yang telah diintegrasikan kedalam software Linux Ubuntu 12.04.
Pegukuran dilakukan dengan dua cara yakni secara fixed(diam) dan mobile(tracking). Data yang
diperoleh memiliki beberapa informasi tentang posisi dari user, kekuatan sinyal terima, azimuth,
elevasi, SNR dll. Nilai SNR yang diperoleh saat pengukuran dijadikan sebagai acuan dalam
menganalisis performansi sinyal satelit. Perubahan nilai SNR pada setiap pengukuran
mengindikasikan bahwa karakteristik signal strength yang diperoleh dari setiap kondisi wilayah
penelitian berbeda – beda. Karakteristik signal strength pada setiap lokasi penelitian sangat
dipengaruhi oleh kondisi geografis bumi, kondisi lingkungan, dan keadaan cuaca saat pengambilan
data. Hal ini dijelaskan oleh data – data yang diperoleh pada saat pengambilan data. Nilai SNR
maksimum yang diperoleh dalam pengambilan data adalah 50 – 53 dBHz pada wilayah Sub Urban
kota Pangkajene Sidrap, sedangkan SNR minimum dalam pengambilan data diperoleh pada wilayah
urban di pusat pertokoan kota Pare-pare.
IDENTIFIKASI KANDUNGAN LOGAM (Pb) DALAM AIR SUMUR DISEKITAR TEMPAT PEMBUANGAN AKHIR (TPA) CADIKA DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM (SSA)
Authors: Musrawati Musrawati 
Published: August 2020

Analisis Kadar Logam (Pb) Air sumur di Sekitar Tempat Pembuangan Akhir (TPA) Cadika dengan Spektrofotometri Serapan Atom (SSA) Penelitian ini bertujuan untuk mengetahui adanya logam Timbal (Pb) pada air sumur TPA Cadika . Pada penelitian ini dilakukan uji kuantitatif dengan menggunakan metode spektrofotometri serapan atom. Hasil penelitian menunjukkan kandungan logam Timbal (Pb) dan terdeteksi dalam sampel air sumur.di TPA Cadika. Kadar Timbal (Pb) pada ketiga sampel yaitu pada air sumur A 0,16224 mg/L, air sumur B 0,17650 mg/L dan air sumur C yaitu 0,21210 mg/L Dari hasil pemeriksaan menunjukkan bahwa kadar Timbal (Pb) pada air sumur A, B, dan C melebihi dari standar yang ditentukan. berdasarkan KEPMENKES No. 907/MENKES/SK/VII/2002 Lampiran II Peraturan Menteri Kesehatan Nomor 416/MEN.KES/PER/IX/1990.
PENGARUH KOMPETENSI, MOTIVASI, DAN KEDISIPLINAN TERHADAP KINERJA KARYAWAN PT. BANK MALUKU CABANG UTAMA AMBON
Authors: Tehuayo Haris , Labusab Labusab 
Published: August 2020

Penelitian ini bertujuan untuk mengetahui dan menganalisis factor apa saja yang pempengaruhi Kinerja Karyawan PT. Bank Maluku Cabang Utama Ambon.Pelaksanaan penelitian dilakukan pada PT. Bank Maluku Cabang Utama Ambon, dengan jumlah responden sebanyak 60 orang. Jenis penelitian mengunakan analisis deskriptif, yakni dengan menilai seberapa besar makna dari jawaban yang diberikan pada masing-masing item pertanyaan. Hasil penelitian menunjukan bahwa faktor Kompetensi, Motivasi, Kedisiplinan, berpengaruh secara bersama-sama terhadap Kinerja Karyawan Pada PT. Bank Maluku Cabang Utama Ambon.Sedangkan secara parsial Variabel kompetensi berpengaruh tidak signifikan terhadap kinerja karyawan.
SISTEM INFORMASI HASIL BELAJAR SISWA PADA SMKN 2 SOMBA OPU GOWA
Authors: Perdana Ayu Lestari , Fatmawati Suci , Andrie Andrie 
Published: August 2020

Data dan informasi mempunyai peranan yang sangat penting dalam proses pengambilan keputusan baik di instansi pemerintah maupun swasta, begitu juga dalam lingkungan SMKN 2 Somba Opu Gowa, selama ini tata usaha dan guru – guru masih menggunakan sistem manual dalam mengolah data siswa mulai dari penggelompokan, pengorganisasian, dan penyajian datanya masih menggunakan sistem manual.Untuk itu perlu dibangun suatu rancangan sistem informasi yang lebih memudahkan pekerjaan tata usaha (operator) dalam pengaturan, pengelompokan, pengorganisasian maupun pencarian data siswa dengan menggunakan bahasa pemprograman Visual Basic 2010 dalam pengolahan database sistem informasi hasil belajar siswa di SMKN 2 Somba Opu Gowa. Dan untuk analisa data penulis menggunakan Metode White Box dalam pengujiannya (Flowchart dan Flowgraft). Hasil rancangan sistem informasi yang dibangun akan memudahkan pengambilan keputusan, tata usaha dan guru-guru dalam menyajikan informasi secara cepat, tepat, efisien, dan akurat baik kepada siswa, orang tua siswa dan bagi masyarakat yang ingin mendapatkan informasi tentang hasil belajar siswa SMKN 2 Somba Opu Gowa.