bluuebunny/crossref_metadata_2025_split huggingface dataset:
Molecular-Biological Factors Influencing Diagnostic Reliability of the Results of Laboratory Studies Based on PCR Analysis Technologies. Report I
Authors: Костюк С.А. , Полуян О.С. 
Published: March 2022

Тема лабораторных ошибок в постановке полимеразной цепной реакции (ПЦР) в режиме реального времени или менеджмент риска ошибок продолжает оставаться весьма актуальной и недостаточно изученной, требующей выделения отдельного направления в области применения технологий молекулярно-биологического анализа. Разрозненные, недостаточно систематизированные знания, касающиеся фундаментальных основ обеспечения процедуры молекулярно-биологического исследования, не позволяют специалистам ПЦР-лабораторий практического здравоохранения эффективно организовать работу по выявлению лабораторных ошибок, которые могут возникать на любом из этапов процедуры исследования, носить методический или аналитический характер.Разработать единую типовую модель борьбы с лабораторными ошибками при проведении ПЦР-исследований сложно, поскольку каждая лаборатория может отличаться от других по своей организационной структуре, видам оборудования, используемым реагентам, перечню видов исследований. В этой связи необходимо на основе научного анализа возможных лабораторных ошибок сформировать профессиональное мышление у врачей лабораторной диагностики, работающих в практическом здравоохранении. Этой проблеме и посвящена настоящая публикация.
The topic of laboratory errors in real-time PCR or the error risk management continues to be very relevant and insufficiently studied, requiring a separate direction in the application of molecular biological analysis technologies. Scattered, insufficiently systematized knowledge regarding the fundamental principles of the molecular biological research procedure does not allow the specialists of PCR laboratories of practical health care to effectively organize the work on detectinglaboratory errors that may occur at any stage of the research procedure and have either methodical or analytical nature.It is difficult to develop a single standard model for combating laboratory errors during PCR studies, because each laboratory may differ from others in its organizational structure, types of equipment, the used reagents, and the list of types of studies. In this regard, it is necessary, on the base of a scientific analysis of possible laboratory errors, to form professional thinking among laboratory diagnostics doctors that work in practical health care. This problem is the subject of this publication.
SINTESIS NANOPARTIKEL Fe3O4–POLIETILEN GLIKOL (PEG) 6000 DARI PASIR BESI PANTAI HAIS SEBAGAI ADSORBEN LOGAM KADMIUM (Cd)
Authors: Tatinting Gabriel Dinnydio , Aritonang Henry F , Wuntu Audy D 
Published: March 2022

Telah dilakukan penelitian tentang sintesis nanopartikel Fe3O4 dari pasir besi pantai Hais dengan metode kopresipitasi dan digunakan sebagai adsorben logam kadmium (Cd). Dalam sintesis nanopartikel tersebut digunakan polietilen glikol (PEG) 6000 sebagai agen penstabil ukuran partikel. Nanopartikel yang dihasilkan dikarakterisasi menggunakan X-Ray diffractometry (XRD) dan Scanning electron microscope (SEM) dan hasil penelitian menunjukkan bahwa dengan penambahan PEG 6000 dapat mempengaruhi ukuran partikel Fe3O4 yang dihasilkan. Selanjutnya nanopartikel Fe3O4-PEG 6000 dianalisis kemampuannya sebagai adsorben logam Cd menggunakan spektofotometer serapan atom (AAS). Hasil penelitian menunjukkan bahwa kemampuan nanopartikel Fe3O4-PEG 6000 dalam menyerap logam Cd lebih baik jika dibandingkan dengan nanopartikel Fe3O4 tanpa penambahan PEG 6000.ABSTRACK A research has been carried out on the synthesis of Fe3O4 nanoparticles from the iron sand of Hais beach using the coprecipitation method and the material was used as an adsorbent for Cadmium (Cd) metal. In the synthesis of these nanoparticles, polyethylene glycol (PEG) 6000 was used as a particle size stabilizer. The resulting nanoparticles were characterized using X-Ray diffractometry (XRD) and Scanning electron microscope (SEM) and the results showed that the addition of PEG 6000 could affect the particle size of Fe3O4 produced. Furthermore, Fe3O4-PEG 6000 nanoparticles were analyzed for their ability to adsorb Cd2+ ion using Atomic adsorption spectroscopy (AAS). The results showed that the ability of Fe3O4-PEG 6000 nanoparticles to adsorb Cd2+ ion was better than that of Fe3O4 nanoparticles without the addition of PEG 6000.
Evaluation of visible region in volumetric 3D display using a rotating helical screen
Authors: Wakatsuki Karin , Fujikawa Chiemi , Omodani Makoto 
Published: March 2022

Abstract
We have proposed a volumetric 3D display in which cross-sectional images are projected on a rotating helical screen. One of challenges of this method is an existence of invisible regions generated depending on observation angle. Invisible region is determined as the sum of dark region as a result of oblique incidence of the projected light on the screen and blind region as a result of blocking light paths to the viewpoint by the screen body. The larger invisible region was shown against the higher viewpoint to the helical screen. It was also shown that invisible region mainly located in the distant side from the viewpoint and in the neighboring region to the rotation axis of the screen. Our evaluation results show that the cylindrical display volume provided by a helical screen offers enough visible region at the viewpoint side and the periphery: indispensable regions for 3D displays.
Uncooled Si infrared photodetector for 2 μm wavelength using stimulated emission by dressed photons
Authors: Kadowaki Takuya , Kawazoe Tadashi , Sugeta Masaki , Sano Masahiko , Mukai Takashi 
Published: March 2022

Abstract
A Si infrared photodetector that operates without requiring to be cooled was fabricated, and its properties were evaluated. The function of this device is to detect, as an electrical signal, carrier density changes due to stimulated emission utilizing a phonon-assisted process via dressed photons. The photosensitivities of this device were 0.21 A W−1, 0.03 A W−1, and 0.01 A W−1 for wavelengths of 1.3 μm, 1.6 μm, and 2.0 μm, respectively, when the forward current density was 50 A cm−2, and the device exhibited a higher sensitivity for wavelengths greater than the cutoff wavelength.
Kombinasi Metode Analytic Hierarchy Process dan Weighted Product pada Rekomendasi Pemilihan Tempat Kost
Authors: Sudiarjo Aso , Hikmatyar Missi 
Published: March 2022

Penerapan Teknologi informasi sudah banyak di implementasikan di berbagai aspek bidang kehidupan, tak terkecuali bidang properti. Dengan banyaknya rumah kost yang berada di kota tasikmalaya dan tingginya permintaan konsumen yaitu, mahasiswa, pelajar, karyawan perantau dalam menggunakan jasa sewa rumah kost untuk hunian sementara di kota Tasikmalaya, membuat konsumen harus teliti dalam memilih tempat kost yang sesuai dengan kriteria-kriteria yang diinginkan. Permasalahan yang terjadi terkadang konsumen sering merasa bingung saat harus memutuskan untuk menyewa rumah kost mana yang seuai keinginan. Oleh karena itu penelitian ini bertujuan untuk membantu konsumen dalam menentukan tempat kost yang tepat dan sesuai dengan kebutuhan. Sistem yang dibangun menggunakan kombinasi metode AHP (Analytic Hierarchy Process) dan WP (Weighted Product). Metode AHP digunakan untuk menghitung bobot dari setiap kriteria sedangkan metode WP digunakan dalam perankingan untuk mendapatkan alternatif kost terbaik. Terdapat 6 kriteria yang digunakan dalam sistem ini, yaitu: harga, jenis kost, fasilitas, lokasi, lahan parkir dan keamanan. Sedangkan WP dipilih karena memiliki kemampuan menganalisis alternative menjadi bentuk perangkingan dengan proses yang cepat dan mudah. Metode yang digunakan dalam pengembangan aplikasi ini mengadaptasi dari metode SLDLC (System Development Life Cycle). Hasil dari penelitian ini berupa prototife aplikasi yang dapat merekomendasikan tempat kost yang sesuai kebutuhan
Perbedaan Kualitas Seksual Wanita dengan Kontrasepsi Hormonal dan Non Hormonal di Desa Kamulyan Kecamatan Tambak
Authors: Herniyatun Herniyatun , Andriani Gea , Astutiningrum Diah 
Published: March 2022

The Family Planning Program (KB) is aims to regulate the birth spacing of children, the ideal age to give a birth, regulate pregnancy, and carry out promotions, protections, assistance according to reproductive rights to build a happy family. Contraceptives that used in Indonesia are categorized as hormonal contraception and non-hormonal contraception. According to research, hormonal contraceptives have side effects that can reduce sexual libido. Decreased libido has affects for a person's sexual quality.
Determins the The Different Of Sexual Quality In Women With Hormonal And Non Hormonal Contraceptions In Kamulyan Village Tambak District
The type of this research was a quantitative research method and used a cross-sectional approach. The sample of this research was 128 respondents, which were taken using accidental sampling. Data analysis used Independent sample t-test test, with a questionnaire with 17 questions items for took a sample.
Result: Independent sample t-test test showed that the average result for hormonal contraception was 62.11 and the average for non-hormonal contraception was 60.10. And p=0.030 (<0.05).
There was a different of sexual quality in women between use hormonal contraception and non-hormonal contraception in Kamulyan village, Tambak district, with was p value: 0.030 (<0.05).
ТИПИЗАЦИЯ ВИРУСА ГРИППА ПТИЦ МЕТОДОМ ОТ-ПЦР
Authors: Өрқара* Ш.Д. , Сандыбаев Н.Т. , Табынов К.К. 
Published: March 2022

Вспышки птичьего гриппа среди диких и домашних птиц все больше являются частым явлением во всем мире. За последние 15 лет вспышки гриппа птиц, в частности вызванные вирусами H5, происходящими из линии A/Goose/Guangdong/1/1996, возникшей в Юго-Восточной Азии в 1996 г., все чаще происходили в Европе и Азии. В период с 2005 по 2020 год в мире было выявлено не менее десяти глобальных вспышек ВПГ H5, что привело к массовой гибели домашних и диких птиц. В последние годы применение молекулярных методов для обнаружения вирусных нуклеиновых кислот стало важным инструментом для выявления вируса гриппа птиц и идентификации подтипов гемагглютинина (HA) и нейраминидазы (NA). К числу таких методов относится ОТ-ПЦР. Обратная транскриптазная - полимеразная цепная реакция – реакция синтеза ДНК-копии (кДНК) на матрице РНК с использованием специального фермента – обратной транскриптазы, также называемой ревертазой. Затем кДНК амплифицируется с помощью полимеразной цепной реакции (ПЦР). В данной статье представлены результаты типирования вируса гриппа птиц методом ПЦР. В 2020 году в одном из частных подворий на территории Алматинской области был отмечен падеж домашней птицы, с симптомами похожими на вирус птичьего гриппа. В результате проведенных лабораторных исследований был типирован вирус гриппа птиц подтипа H5 методом ОТ-ПЦР.
ФУНКЦИОНАЛДЫ БАҒЫТТАҒЫ ЙОГУРТТАРДЫҢ САПА КӨРСЕТКІШТЕРІН ЗЕРТТЕУ
Authors: Жүсіп* Н.А. , Байтукенова С.Б. 
Published: March 2022

Зерттеу жұмыстарының барысында сиыр сүтінен көкөніс шырындарымен және жеміс-жидек шәрбаттарымен байытылған функционалды бағыттағы йогурттардың тәжірибелік үлгілері жасалып, олардың органолептикалық және физика-химиялық көрсеткіштеріне қол жеткізілді.
Өсімдік тектес шикізат көздерімен байытылған йогурттардың сыртқы түрі және консистенциясын, дәмі мен иісін, түсін анықтауда органолептикалық әдістер қолданылды.
Сапаны органолептикалық бағалау көкөніс шырындарымен және жеміс-жидек шәрбаттарымен байытылған йогурттардың барлық ұсынылған үлгілері жоғары органолептикалық қасиетке ие екендігін көрсетті, ең жақсы органолептикалық қасиеттерге қаражидек және алша шәрбаттары қосылған йогурттар, 3,2% майлылықты қызылша шырыны мен қаражидек шәрбатымен байытылған «Қызылша-қаражидек» йогурты ең жоғары 9,9 ұпайға ие болды.
Физикалық-химиялық сапа көрсеткіштерін зерттеу нәтижелері функционалды бағыттағы йогурт үлгілерінің құрамындағы майдың, ақуыздың, ҚМСҚ массалық үлестерінің, қышқылдығының, фосфатаза немесе пероксидазаның МЕМСТ 31981-2013 талаптарына сәйкес келетіндігін көрсетті.
Оңтайлы сақтау шарттарын орнату мақсатында йогурттардың тұтынушылық қасиеттерінің өзгеруіне зерттеулер өндірілген күннен бастап 3, 5 және 7-ші күндері жүргізіліп, жетінші күн сақтаудың соңында 3,2% майлылықты қызылша шырынымен және қаражидек шәрбатымен байытылған «Қызылша-қаражидек», сәбіз шырынымен және алша шәрбатымен байытылған «Сәбіз-алша», балдыркөк шырынымен және алма шәрбатымен байытылған «Балдыркөк-алма» йогурттарының үлгілерін органолептикалық бағалауда сәл төмен ұпайға ие болуы тек «Дәмі мен иісі» көрсеткіші бойынша ғана ұпай бағасының аздап төмендеуіне тікелей байланысты екендігі байқалды.
Сонымен, сақтаудың жетінші күніндегі көкөніс шырынымен және жеміс-жидек шәрбатымен байытылған йогурттардың физика-химиялық көрсеткіштерін зерттеу нәтижесінде, олардың оңтайлы сақтау мерзімінің 7 күнді құрайтындығы белгіленді.
ОБОСНОВАНИЕ МЕТОДА ОПРЕДЕЛЕНИЯ ПОКАЗАТЕЛЕЙ КАЧЕСТВА ПЛОДОВ ЯБЛОК С ИСПОЛЬЗОВАНИЕМ МАШИННОГО ЗРЕНИЯ
Authors: Нуртулеуов А.Н. , Молдажанов А.К. , Кулмахамбетова* А.Т. , Зинченко Д.А. 
Published: March 2022

В статье рассмотрены обоснование методов и алгоритмов определения показателей качества яблок с использованием машинного зрения для дальнешей сортировкой их на категории. Основными показателями качества согласно стандартам является его внешний вид (окрас), размер (величина), вес и форма.
Для исследования работоспособности алгоритма и программы получения и обработки изображения, а также вычисления его характерных признаков оценки показателей качества разработана и изготовлена экспериментальная автоматизированная установка (АУ), основными компонентами которой являются оптическая камера, тензометрический датчик и микрокомпьютер Raspberry Pi4 на основе которого было создана эта установка.
В результате исследований было установлено, что наиболее современным и актуальным решением является определении основных стандартов качеств с помощью автоматизации процесса сортировки с использованием оптико-электронных методов, а именно с использованием средств машинного зрения.
Результаты статистической обработки показали, что значения диаметров при ручном измерении и измерении на АУ незначительно отличаются, значения массы яблок при ручном взвешивании на весах и измеренные на АУ автоматизированным методом практически совпадают, относительная ошибка не превышает 0,8 %. Большим преимуществом использование машинного зрения при определении показателей качества яблок, является то, что есть более точная возможность определять долю окраса яблок, а данный показатель является одним из важнейших показателей качества, который влияет на продажную стоимость.
Prediction of Astrometric-microlensing Events from Gaia eDR3 Proper Motions*

†
Authors: Klüter Jonas , Bastian Ulrich , Demleitner Markus , Wambsganss Joachim 
Published: March 2022

Abstract
Astrometric microlensing is a unique tool to measure stellar masses. It allows us to determine the mass of the lensing star with an accuracy of a few percent. In this paper, we update, extend, and refine our predictions of astrometric-microlensing events based on Gaia’s early Data release 3 (eDR3). We selected about 500.000 high-proper-motion stars from Gaia eDR3 with μ
tot > 100 mas yr−1 and searched for background sources close to their paths. We applied various selection criteria and cuts in order to exclude spurious sources and co-moving stars. By forecasting the future positions of lens and source, we determined epoch of and angular separation at closest approach, and determined an expected positional shift and magnification. Using Gaia eDR3, we predict 1758 new microlensing events with expected shifts larger than 0.1 mas between the epochs J2010.5 and mid J2066.0. Further, we provide more precise information on the angular separation at closest approach for 3084 previously predicted events. This helps to select better targets for observations, especially for events that occur within the next decade. Our search lead to the new prediction of an interesting astrometric-microlensing event by the white dwarf Gaia eDR3-4053455379420641152. In 2025 it will pass by a G = 20.25 mag star, which will lead to a positional shift of the major image of

δ

θ

+

=

1.2

−
0.5

+
2.0

mas

. Since the background source is only ΔG = 2.45 mag fainter than the lens, also the shift of the combined center of light will be measurable, especially using a near-infrared filter, where the background star is brighter than the lens (ΔKs = −1.1 mag).
A Large-scale Approach to Modeling Molecular Biosignatures: The Diatomics
Authors: Cross Thomas M. , Benoit David M. , Pignatari Marco , Gibson Brad K. 
Published: March 2022

Abstract
This work presents the first steps to modeling synthetic rovibrational spectra for all molecules of astrophysical interest using a new approach implemented in the Prometheus code. The goal is to create a new comprehensive source of first-principles molecular spectra, thus bridging the gap for missing data to help drive future high-resolution studies. Our primary application domain is for molecules identified as signatures of life in planetary atmospheres (biosignatures), but our approach is general and can be applied to other systems. In this work we evaluate the accuracy of our method by studying four diatomic molecules, H2, O2, N2, and CO, all of which have well-known spectra. Prometheus uses the transition-optimised shifted Hermite (TOSH) theory to account for anharmonicity for the fundamental ν = 0 → ν = 1 band, along with thermal-profile modeling for the rotational transitions. To this end, we expand TOSH theory to enable the modeling of rotational constants. We show that our simple model achieves results that are a better approximation of the real spectra than those produced through an harmonic approach. We compare our results with high-resolution HITRAN and ExoMol spectral data. We find that modeling accuracy tends to diminish for rovibrational transition away from the band origin, thus highlighting the need for the theory to be further adapted.
Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and Chromium
Authors: den Hartogh Jacqueline , Petö Maria K. , Lawson Thomas , Sieverding Andre , Brinkman Hannah , Pignatari Marco , Lugaro Maria 
Published: March 2022

Abstract
Isotope variations of nucleosynthetic origin among solar system solid samples are well documented, yet the origin of these variations is still uncertain. The observed variability of 54Cr among materials formed in different regions of the protoplanetary disk has been attributed to variable amounts of presolar, chromium-rich oxide (chromite) grains, which exist within the meteoritic stardust inventory and most likely originated from some type of supernova explosion. To investigate if core-collapse supernovae (CCSNe) could be the site of origin of these grains, we analyze yields of CCSN models of stars with initial masses 15, 20, and 25 M
⊙, and solar metallicity. We present an extensive abundance data set of the Cr, Mg, and Al isotopes as a function of enclosed mass. We find cases in which the explosive C ashes produce a composition in good agreement with the observed 54Cr/52Cr and 53Cr/52Cr ratios as well as the 50Cr/52Cr ratios. Taking into account that the signal at atomic mass 50 could also originate from 50Ti, the ashes of explosive He burning also match the observed ratios. Addition of material from the He ashes (enriched in Al and Cr relative to Mg to simulate the make-up of chromite grains) to the solar system’s composition may reproduce the observed correlation between Mg and Cr anomalies, while material from the C ashes does not present significant Mg anomalies together with Cr isotopic variations. In all cases, nonradiogenic, stable Mg isotope variations dominate over the variations expected from 26Al.
Recovery of TESS Stellar Rotation Periods Using Deep Learning
Authors: Claytor Zachary R. , van Saders Jennifer L. , Llama Joe , Sadowski Peter , Quach Brandon , Avallone Ellis A. 
Published: March 2022

Abstract
We used a convolutional neural network to infer stellar rotation periods from a set of synthetic light curves simulated with realistic spot-evolution patterns. We convolved these simulated light curves with real TESS light curves containing minimal intrinsic astrophysical variability to allow the network to learn TESS systematics and estimate rotation periods despite them. In addition to periods, we predict uncertainties via heteroskedastic regression to estimate the credibility of the period predictions. In the most credible half of the test data, we recover 10% accurate periods for 46% of the targets, and 20% accurate periods for 69% of the targets. Using our trained network, we successfully recover periods of real stars with literature rotation measurements, even past the 13.7 day limit generally encountered by TESS rotation searches using conventional period-finding techniques. Our method also demonstrates resistance to half-period aliases. We present the neural network and simulated training data, and introduce the software butterpy used to synthesize the light curves using realistic starspot evolution.
The Origin of Exponential Star-forming Disks
Authors: Wang Enci , Lilly Simon J. 
Published: March 2022

Abstract
The disk components of galaxies generally show an exponential profile extending over several scale lengths, both in mass and star formation rate, but the physical origin is not well understood. We explore a physical model in which the galactic gas disk is viewed as a “modified accretion disk” in which coplanar gas inflow, driven by viscous stresses in the disk, provides the fuel for star formation, which progressively removes gas as it flows inward. We show that magnetic stresses from magneto-rotational instability are the most plausible source of the required viscosity, and construct a simple physical model to explore this. A key feature is to link the magnetic field strength to the local star formation surface density,

B

tot

∝

Σ

SFR

α

. This provides a feedback loop between star formation and the flow of gas. We find that the model naturally produces stable steady-state exponential disks, as long as α ∼ 0.15, the value indicated from spatially resolved observations of nearby galaxies. The disk scale length h
R is set by the rate at which the disk is fed, by the normalization of the B
tot–ΣSFR relation and by the circular velocity of the halo. The angular momentum distribution of the gas and stars within the disk is a consequence of the transfer of angular momentum that is inherent to the operation of an accretion disk, rather than the initial angular momentum of the inflowing material. We suggest that magnetic stresses likely play a major role in establishing the stable exponential form of galactic disks.