bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fermi-Liquid Nonadiabatic Highly Compressed Cesium Iodide Superconductor
Authors: Talantsev Evgueni F. 
Published: November 2022

The experimental discovery that compressed sulfur hydride exhibits superconducting transition temperature of Tc=203 K by Drozdov et al. (Nature 2015, 525, 73–76) sparked studies of compressed hydrides. This discovery was not a straightforward experimental examination of a theoretically predicted phase, but instead it was a nearly five-decade-long experimental quest for superconductivity in highly compressed matters, varying from pure elements (hydrogen, oxygen, sulfur), hydrides (SiH4, AlH3) to semiconductors and ionic salts. One of these salts was cesium iodide, CsI, which exhibits the transition temperature of Tc≅1.5 K at P=206 GPa (Eremets et al., Science 1998, 281, 1333–1335). Detailed first principles calculations (Xu et al., Phys Rev B 2009, 79, 144110) showed that CsI should exhibit Tc~0.03 K (P=180 GPa). In an attempt to understand the nature of this discrepancy between the theory and the experiment, we analyzed the temperature-dependent resistance in compressed CsI and found that this compound is a perfect Fermi liquid metal which exhibits an extremely high ratio of Debye energy to Fermi energy, ℏωDkBTF≅17. This implies that direct use of the Migdal–Eliashberg theory of superconductivity to calculate the transition temperature in CsI is incorrect, because the theory is valid for ℏωDkBTF≪1. We also showed that CsI falls into the unconventional superconductors band in the Uemura plot.
EMPIRICAL EVIDENCE OF THE IMPACT OF INTEREST RATE, GOVERNMENT EXPENSES, MONEY SUPPLY AND REAL EFFECTIVE EXCHANGE RATE ON ECONOMIC GROWTH – THE CASE OF NORTH MACEDONIA
Authors: Seferi Liridona , Seferi Zufer , Mustafa Harun 
Published: November 2022

The main purpose of this paper is to analyze the impact of interest rates, government expenses, money supply and real exchange rates on the economic growth of the Republic of North Macedonia. A country's economic groëth refers to the growth of that country's Gross Domestic Product (GDP). The interest rate is one of the determining factors of economic groëth. Despite the challenging macroeconomic environment and other influencing factors, the Republic of North Macedonia in recent years has maintained low inflation rates and interest rates.
Empirical analysis of the paper is based on data obtained from the Central Bank of Republic of North Macedonia on a quarterly basis for the period from 2008 to 2020. Through the use of co integration tests (Johanensen test), Granger causality test, autocorrelation test, VAR, ARCH and GARCH process, it is verified that the rate interest rate is a determining variable and has a long-term relationship with economic groëth.
The co integration test (Johannesen test) shoës that in all equations the results are statistically significant and the variables have a long-run relationship betëeen them. Then the use of the Granger test of causality notes that money supply causes interest rate changes; they also cause a change in economic groëth.
The unit root test is used to determine the level of integration of variables .The use of the Granger causality test then points out that the money supply causes changes on interest rate ; GDP also causes interest rate changes. The interest rate causes the change of economic groëth. Government spending causes the change of economic groëth. The effective exchange rate causes the change of economic growth.
Evidence of co integration allowed the application of the VAR model, which enabled the identification of variables that affect economic groëth in the Republic of North Macedonia, both in the short and long term.
In the end, all variables are tested together and it turns out that logarithmic GDP and interest rates have an impact on economic growth.
The conclusions from the data analysis are that all variables are interrelated and have an impact on economic growth.
Also there can be identified and other economic factors that have impact on economic growth that are not included on this paper.
Strategi Pengelolaan dan Pengembangan Kawasan Hutan Mangrove di Dusun Tangkolak Timur Kabupaten Karawang
Authors: Sam'un Mohamad , Rom Ali Fikri Mohamad , Ayu Lestari Zeni , Triadi Triadi , Dwi Rahmawat Tasyah 
Published: November 2022

Pengelolaan hutan mangrove belum optimal dan pemanfaatannya secara ekonomi masih terbatas. Kawasan mangrove dapat memberikan dampak positif bagi tumbuh kembangnya perekonomian masyarakat pesisir. Penelitian ini bertujuan untuk mencari strategi pengelolaan dan pengembangan kawasan hutan mangrove di Dusun Tangkolak Timur Karawang. Penelitian dilakukan di Dusun Tangkolak Timur Desa Sukakerta Kecamatan Cilamaya Wetan Kabupaten Karawang. Merupakan penelitian kualitatif ditunjang data kuantitatif dengan pendekatan studi kasus. Data diperoleh dengan wawancara mendalam, observasi participant, telaahan dokumentasi dan Focus Group Discussion. Penelitian ini bertujuan (a). Melakukan identifikasi kondisi eksisting hutan mangrove (b). Identifikasi pengelolaan dan pemanfaatan hutan mangrove oleh masyarakat sekitar (c). Melakukan analisis strategi pengelolaan dan pengembangan kawasan hutan mangrove. Perumusan strategi dilakukan dengan analisis SWOT. Berdasarkan hasil penelitian dapat disimpulkan bahwa strategi utama adalah perlu dibuat perencanaan pembangunan/pengembangan dan pengelolaan kawasan mangrove secara komprehensif dan terintegrasi dengan melibatkan berbagai lintas sektor dari unsur pemerintah, swasta dan masyarakat. Kemudian disusul dengan membuat program kerja dan usulan pembangunan kawasan mangrove serta melakukan jejaring kinerja (network system) pembangunan antara pemerintah, swasta dan masyarakat
Na+ diffusion in Na
x
Co[Fe(CN)6]0.90 film as investigated by transmission image
Authors: Iwaizumi Hiroki , Shibata Takayuki , Moritomo Yutaka 
Published: November 2022

Abstract
Diffusion of alkali metal ions plays an important role in the rate property of the battery. Here, we investigated macroscopic Na+ diffusion in a thin film of Na
x
Co[Fe(CN)6]0.90 (NCF90) by means of transmitted light intensity image at 540 nm. The distribution of the Na+ concentration (x) was determined against the elapsed time (t). We found that the diffusion constant (D) for Na+ shows x-dependence as D = 6.0 × 10−8 − (1.6 − x) 6.0 × 10−8 cm2 s−1. The average D value (=3.0 × 10−8 cm2 s−1) is much larger than the reported value (=0.5 × 10−10 cm2 s−1 M. Takachi, Y. Fukuzumi, and Y. Moritomo, Dalton Trans. 45, 458 (2016)) of Na
x
Co[Fe(CN)6]0.88 (x = 0.8) determined by the electrochemical impedance spectroscopy. The large D value evaluated in the present investigation is ascribed to the fast intergrain Na+ diffusion process.
Training on Using Microsoft Word to Support AKM Success for Grade 5 Students at SDN 1-2 Cibunar
Authors: Sahidin Didin , Loekman Arief , Hasanah Ninah , Nugraha Nanan , Hermayanti Putri 
Published: November 2022

Abstract
Cibunar Village is one of the villages in Tarogong Kidul District, Garut Regency, West Java. Here there are two elementary schools with limited availability of supporting facilities for formal education and extra activities. The ability to use Microsoft Word is one of the factors that can support the success of AKM, therefore training activities on the use of Microsoft Word for 5th grade students of SDN 1-2 Cibunar are very much needed. This activity aims to provide education about the use of Microsoft Word. This activity is carried out using a simple material presentation and practice method. The results of the training show that the average pre-test score of participants is 30.00 while the average post-test score of participants is 75.00. These results indicate that the training activities have an impact on increasing participants' understanding and skills in using computers and operating Microsoft Word applications.

Abstrak
Desa Cibunar merupakan salah satu desa yang ada di Kecamatan Tarogong Kidul Kabupaten Garut Jawa Barat. Di sini terdapat dua buah Sekolah Dasar yang ketersediaan fasilitas pendukung pendidikan formal dan kegiatan ekstra yang terbatas. Kemampuan pada penggunaan Microsoft Word merupakan salah satu faktor yang dapat menunjang keberhasilan AKM, oleh karena itu kegiatan pelatihan penggunaan Microsoft Word untuk siswa kelas 5 SDN 1-2 Cibunar sangat dibutuhkan. Kegiatan ini bertujuan memberikan edukasi tentang penggunaan Microsoft Word. Kegiatan ini dilaksanakan dengan metode presentasi materi dan praktik sederhana. Hasil pelatihan menunjukan nilai rata-rata pre test peserta adalah 30,00 sedangkan nilai rata- rata post test peserta adalah 75,00. Hasil tersebut menunjukan bahwa kegiatan pelatihan menunjukan adanya dampak peningkatan dalam pemahaman dan keterampilan peserta dalam penggunaan komputer dan pengoperasian aplikasi Microsft Word.
Waste Management And Separation Education Organic And Inorganic Manufacturing And Place Waste From Bamboo
Authors: Rahmawati Rena , Castriani Refi Lestari , Afnuria Pasya 
Published: November 2022

AbstractThe surabaya village is a village situated in Surabaya, the Balubur Limbangan subdistrict, the Garut district, west Java province. The village of 2 Surabaya was a prosperous village with the majority of its population's livelihoods including creations as caged and clay-grids. The awareness and care to handle the waste by peasant people 2 seemed to be lacking. The habit of burning garbage still runs deep in the peasant community to deal with the garbage problem. Besides, burning up human garbage is the quickest way to address the problem. As well as the garbage control approach to children through the practice of garbage makes them happy that there is something they can make from the garbage at their own pace and the hope of their future creativity can be spoiled in dealing with the problem of garbage and the presence of kader environmental in their village

Abstrak Dusun 2 Surabaya merupakan dusun yang terletak di Desa Surabaya, Kecamatan Balubur Limbangan, Kabupaten Garut, Provinsi Jawa Barat. Dusun 2 Surabayamerupakan desa yang makmur dengan mayoritas mata pencaharian penduduknya meliputi kreasi sebagai pengrajin sangkar dan cobek dari tanah liat. Kesadaran dan kepedulian untuk menangani sampah oleh masyarakat dusun 2 terlihat masih sangat kurang. Kebiasaan membakar sampah masih mendarah daging di masyarakat dusun dalam menangani permasalahan sampah. Disamping itu dengan membakar sampah dirasa masyarakat adalah cara yang paling cepat dalam menangani permasalahan tersebut. Serta pendekatan pengendalian sampah kepada anak-anak melalui kegiatan pembuatan prakarya dari sampah membuat mereka senang karena ada sesuatu yang dapat mereka buat dari sampah dengan usaha mereka sendiri dan harapannya kreatifitas mereka kedepannya dapat terasah dalam menangani masalah sampah dan muncul kaderkader peduli lingkungan di dusun mereka
Pengaruh Operating Capacity terhadap Financial Distress Dalam Model Pengukuran Springate pada Perusahaan Manufaktur Bursa Efek Indonesia (BEI) Periode Tahun 2016 - 2020
Authors: Rahmadianti  
Published: November 2022

Penelitian ini menganalisis tentang pengaruh operating capacity terhadap financial distress dalam model pengukuran Springate. Unit analisis dalam penelitian ini adalah perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia (BEI) periode tahun 2016 - 2020. Metode penelitian yang digunakan adalah metode deskriptif dan verifikatif dengan pendekatan kuantitatif. Populasi dalam penelitian ini adalah 195 perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode tahun 2016 - 2020. Teknik pengambilan sampel yang digunakan dalam penelitian ini adalah teknik non-probability sampling dengan jenis purposive sampling. Terdapat 48 perusahaan yang memenuhi kriteria sampel penelitian. Hasil dari penelitian menunjukkan bahwa operating capacity berpengaruh negatif terhadap financial distress dalam model pengukuran Springate.
Parameterstudie zum Unrundwalzen von Ellipsen/Parameter study for non-circular rolling of ellipses
Authors: Roe Christopher , Kriwall Mareile , Schledewitz Erwin , Stonis Malte , Behrens Bernd-Arno 
Published: November 2022

Im Unrundwalzen wird die Machbarkeit untersucht, mehrere zueinander versetzte, lokal unrunde Formelemente in ein zylindrisches Halbzeug zu walzen. Ein Teilgebiet der Untersuchungen ist das Walzen von zwei elliptischen Abschnitten. Aus drei unterschiedlichen Berechnungskonzepten für die Bestimmung der Werkzeuggravur wurde einer für eine simulative Parameterstudie gewählt. Die Haupteinflussgrößen, unter anderem die Länge und Breite der Gravur, und ein Prozessfenster wurden identifiziert.

Non-circular rolling investigates the feasibility of rolling several mutually offset and locally non-round shaped elements into a cylindrical semi-finished product. A sub-area of investigations is the rolling of two elliptical sections. From three different calculation methods for determining the tool engraving one was chosen for a simulative parameter study. The main influencing variables, including length and width of the engraving and a process window were identified.
Wasserstoff: Zweilagige-Rohre für Pipelines/Robust, inexpensive and producible on site: two-layer tubes for hydrogen pipelines
Authors: Schieck Frank , Albert André , Galiev Elmar 
Published: November 2022

Für eine klimaneutrale Energieversorgung ist grüner Wasserstoff unverzichtbar. Transport und Zwischenspeicherung von gasförmigem Wasserstoff über weite Strecken erfordern jedoch ein dauerhaft haltbares Pipeline-Netz. Existierende Pipeline-Systeme genügen dieser Anforderung nur bedingt, insbesondere, wenn die Rohrleitungen zur Gasspeicherung mit dynamischen Drücken beaufschlagt werden. Die sogenannte Wasserstoffversprödung führt dabei vor allem im Bereich von Schweißnähten und allgemein bei höherfesten Werkstoffen zu Ermüdungsrissen. Abhilfe könnten mehrlagige, im Verfahren der Innenhochdruck-Umformung (IHU) hergestellte Rohre schaffen, wie vom Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU im Rahmen von Forschungsarbeiten nachgewiesen. Großer Vorteil des Verfahrens: Umschließende Werkzeuge werden nicht benötigt, die Fertigung ist damit auch für sehr lange Rohrsegmente und in direkter Nähe von Pipeline-Baustellen möglich.

Green hydrogen is indispensable for a climate-neutral energy supply. However, the transport and intermediate storage of gaseous hydrogen over long distances requires a durable pipeline network. Today‘s pipeline systems do not yet meet this requirement to a certain extent, especially when the pipelines for gas storage are subjected to dynamic pressures. Hydrogen embrittlement leads to fatigue cracks, especially in the area of weld seams and generally in high-strength materials. The Fraunhofer Institute for Machine Tools and Forming Technology IWU has now demonstrated experimentally that multi-layer tubes produced using the Hydroforming process can provide a remedy. The great advantage of the process: enclosing tools are not required, production is thus possible for very long tube segments and also in the direct vicinity of pipeline construction sites.
Endovascular laser coagulation in varicose vein relapses in the lower extremities
Authors: Chernookov A. I. , Kandyba S. I. , Silchuk E. S. , Dolgov S. I. , Atayan A. A. , Lebedeva Yu. N. , Ramazanov A. A. 
Published: November 2022

Objective. To study the effectiveness of endovascular laser coagulation in patients with recurrent varicose veins in their lower extremities.Material and methods. Outcomes after the treatment of 54 patients with varicose vein relapses in the lower extremities were analyzed. Under the tumescent anesthesia, endovascular laser coagulation was made: in 5 patients – stump of the great saphenous vein; in 22 patients – recanalized, residual and preserved subcutaneous venous trunks; in 27 patients – insufficient communicating veins of the thigh and lower leg.Results and discussion. In average, surgery lasted for 31 ± 0.6 minutes; intensity of the postoperative pain syndrome was 3.4 ± 0.4 points. Early postoperative complications were registered in 1 (1.8 %) patient, side effects in the form of hyperpigmentation and paraesthesia – in 4 (7.4 %). In 12 months, all operated patients demonstrated an improvement in all parameters of their quality of life by 29.2– 40 %; cosmetic outcome after surgery was 7.8 points out of a ten-point scale. The long-term observation revealed the relapse in varicose veins only in 1 (1.8 %) patient.Conclusion. The justified use of endovasal laser coagulation in patients with relapses of varicose veins in the lower extremities allows to avoid manipulations in the area of scar-altered tissues, to reduce tissue damage and duration of surgery, to improve patients’ quality of life, to avoid additional incisions as well as to improve cosmetic outcomes after surgery.
Galactic Settlement of Low-mass Stars as a Resolution to the Fermi Paradox
Authors: Haqq-Misra Jacob , Fauchez Thomas J. 
Published: November 2022

Abstract
An expanding civilization could spread rapidly through the Galaxy, so the absence of extraterrestrial settlement in the solar system implies that such expansionist civilizations do not exist. This argument, often referred to as the Fermi paradox, typically assumes that expansion would proceed uniformly through the Galaxy, but not all stellar types may be equally useful for a long-lived civilization. We suggest that low-mass stars, and K-dwarf stars in particular, would be ideal migration locations for civilizations that originate in a G-dwarf system. We use a modified form of the Drake equation to show that expansion across all low-mass stars could be accomplished in 2 Gyr, which includes waiting time between expansion waves to allow for a close approach to a suitable destination star. This would require interstellar travel capabilities of no more than ∼0.3 lt-yr to settle all M-dwarfs and ∼2 lt-yr to settle all K-dwarfs. Even more rapid expansion could occur within 2 Myr, with travel requirements of ∼10 lt-yr to settle all M-dwarfs and ∼50 lt-yr to settle all K-dwarfs. The search for technosignatures in exoplanetary systems can help to place constraints on the presence of such a “low-mass Galactic Club” in the Galaxy today.
Hunting for Neutrino Emission from Multifrequency Variable Sources
Authors: Chang Yu-Ling , Arsioli Bruno , Li Wenlian , Xu Donglian , Chen Liang 
Published: November 2022

Abstract
Pinpointing the neutrino sources is crucial to unveil the mystery of high-energy cosmic rays. The search for neutrino source candidates from coincident neutrino-photon signatures and objects with particular electromagnetic flaring behaviors can increase our chances of finding neutrino emitters. In this paper, we first study the temporal correlations of astrophysical flares with neutrinos, considering a few hundred multifrequency sources from the Atacama Large Millimeter/submillimeter Array, the Wide-field Infrared Survey Explorer (WISE), Swift, and Fermi in the containment regions of IceCube high-energy alerts. Furthermore, the spatial correlations between blazars and neutrinos are investigated using the subset of 10 yr IceCube track-like neutrinos with around 250,000 events. In a second test, we account for 2700 blazars with different types of flaring stages in addition to their position. No significant neutrino emissions were found from our analyses. Our results indicate an interesting trend showing that the infrared flaring phases of WISE blazars might be correlated with the arrival times of the neutrino alerts. A possible overflow of neutrinos associated with two of our selected blazar samples is discussed in detail. One is characterized by a significant flaring lag in infrared with respect to γ-rays, as seen for TXS 0506+056, and the other is characterized by highly simultaneous infrared and γ-ray flares. Our investigation suggests the need to improve current multifrequency light-curve catalogs to pair with the advent of more sensitive neutrino observatories.
Experimental Determination of the Dissociative Recombination Rate Coefficient for Rotationally Cold CH+ and Its Implications for Diffuse Cloud Chemistry
Authors: Paul Daniel , Grieser Manfred , Grussie Florian , von Hahn Robert , Isberner Leonard W. , Kálosi Ábel , Krantz Claude , Kreckel Holger , Müll Damian , Neufeld David A. , Savin Daniel W. , Schippers Stefan , Wilhelm Patrick , Wolf Andreas , Wolfire Mark G. , Novotný Oldřich 
Published: November 2022

Abstract
Observations of CH+ are used to trace the physical properties of diffuse clouds, but this requires an accurate understanding of the underlying CH+ chemistry. Until this work, the most uncertain reaction in that chemistry was dissociative recombination (DR) of CH+. Using an electron–ion merged-beams experiment at the Cryogenic Storage Ring, we have determined the DR rate coefficient of the CH+ electronic, vibrational, and rotational ground state applicable for different diffuse cloud conditions. Our results reduce the previously unrecognized order-of-magnitude uncertainty in the CH+ DR rate coefficient to ∼20% and are applicable at all temperatures relevant to diffuse clouds, ranging from quiescent gas to gas locally heated by processes such as shocks and turbulence. Based on a simple chemical network, we find that DR can be an important destruction mechanism at temperatures relevant to quiescent gas. As the temperature increases locally, DR can continue to be important up to temperatures of ∼600 K, if there is also a corresponding increase in the electron fraction of the gas. Our new CH+ DR rate-coefficient data will increase the reliability of future studies of diffuse cloud physical properties via CH+ abundance observations.
Signatures of r-process Enrichment in Supernovae from Collapsars
Authors: Barnes Jennifer , Metzger Brian D. 
Published: November 2022

Abstract
Despite recent progress, the astrophysical channels responsible for rapid neutron capture (r-process) nucleosynthesis remain an unsettled question. Observations of the kilonova following the gravitational-wave-detected neutron star merger GW170817 established mergers as one site of the r-process, but additional sources may be needed to fully explain r-process enrichment in the universe. One intriguing possibility is that rapidly rotating massive stars undergoing core collapse launch r-process-rich outflows off the accretion disks formed from their infalling matter. In this scenario, r-process winds are one component of the supernova (SN) ejecta produced by “collapsar” explosions. We present the first systematic study of the effects of r-process enrichment on the emission from collapsar-generated SNe. We semianalytically model r-process SN emission from explosion out to late times and determine its distinguishing features. The ease with which r-process SNe can be identified depends on how effectively wind material mixes into the initially r-process-free outer layers of the ejecta. In many cases, enrichment produces a near-infrared (NIR) excess that can be detected within ∼75 days of explosion. We also discuss optimal targets and observing strategies for testing the r-process collapsar theory, and find that frequent monitoring of optical and NIR emission from high-velocity SNe in the first few months after explosion offers a reasonable chance of success while respecting finite observing resources. Such early identification of r-process collapsar candidates also lays the foundation for nebular-phase spectroscopic follow-up in the NIR and mid-infrared, for example, with the James Webb Space Telescope.