bluuebunny/crossref_metadata_2025 huggingface dataset:
Software for Course Registration of Engineering Students
Authors: Bashir Muhammad Aun
Published: August 2023

University students use web-based systems for the registration of courses. These web-based registration systems are quite expensive for some universities in developing countries and these expensive course registration systems often present difficulties to users due to their limitations. This paper presents a course registration software developed by the author and implemented to facilitate the process of student registration at the author’s college. Visual Basic .NET (VB.NET) is a versatile and modern programming language developed by Microsoft, built on the .NET Framework, which provides a robust platform for developing Windows and web applications. Visual Basic .Net was used to develop the highly interactive software. Simple text files for schedules, student lists, and course lists with pre-requisite will be used as input files. After checking the pre-requisite courses, class schedules, and exam conflicts automatically, the course list is generated for a particular student for registration. This new course registration software at the author’s department was started to use in the Fall of 2015. The software improved the complication and time-consuming approach of the registration process, executed course registration for engineering students, and also helped the academic supervision across the fall, summer, and spring semesters. After validating the software for one department, this software was implemented for the remaining departments of the author’s college and improved the registration process.
Satisfacción de los usuarios de un laboratorio clínico en un hospital de alta complejidad del norte de Perú, diciembre del 2021
Authors: Tello-Vera Stalin , Mondragón-Silva Sergio
Published: August 2023

Introduction: Satisfaction is considered a valid and key indicator of quality in medical care, which describessubjective dimensions of the patient's experience and whose relevance has increased over time. Objective:To evaluate the satisfaction of users of a clinical laboratory in a high complexity hospital in northern Peruduring December 2021. Methodology: Descriptive, prospective cross-sectional study; instrument: aSERQUAL model adapted by Yamil Adrián Guarín was used for use in clinical laboratories, which consisted of20 items for perceptions and 20 items for expectations, each item had a value between 1 and 7. It wasconsidered that there was satisfaction if the difference between perceptions and expectations was equal to orgreater than zero Results: A total of 384 patients were surveyed, 49.08% were women; 60.9% had highertechnical training, and 13.54% secondary education. A satisfied percentage of 55.99% was obtained in thetangibility dimension, while the satisfaction percentage was 59.64, 56.25, 53.39 and 59.38% in the reliability,responsiveness, security and empathy dimensions, respectively. Conclusions: The satisfaction of clinicallaboratory users fluctuated between 50 and 60%, slightly lower than what is recommended by the Ministry ofHealth.
Frecuencia y factores asociados a la dislipidemia en pacientes atendidos en un centro médico de Chiclayo, julio a diciembre del 2020
Authors: Ruiz-Ñañez Miguel Angel , Farro-Puicón Mónica
Published: August 2023

Objective. To determine the frequency and factors associated with dyslipidemia in patients treatedin a Medical Center of Chiclayo, July to December 2020. Material and methods. An analytical crosssectionalstudy was conducted on secondary data (retrospective) in a population of 1,120 patientsadmitted to the “Inkamay” Medical Center in the city of Chiclayo, during March to June 2020. Thestudy was census. The data were collected by documenting the clinical records and record books ofthe clinical laboratory. Results. The population was characterized by a median age of 53 years (IQR= 41-64), weight of 65 kg (IQR = 58-74), BMI of 26.2 Kg/M2 (IQR = 24.0-29.4) and predominance of thefemale sex (68.5%). 59.9% had dyslipidemia with high levels of cholesterol or triglyceridemia; likewise,32.6% and 42.0% had high levels of HDLc and LDLc, respectively. The bivariate analysis showed anassociation of age older than 30 years (p<0.001), overweight and obesity (p <0.001), and glycemiagreater than 126 mg/dL (p=0.007) with the higher frequency of dyslipidemia. The association of sexwith dyslipidemia was not demonstrated. Conclusions. More than half of the patients in the studypopulation had dyslipidemia with abnormally high cholesterol or triglyceridemia levels, which wererelated to older age, higher BMI, and hyperglycemia.
Literarische Interventionen? : Der Chamisso-Preis und die Transformation der Gegenwartsliteratur
Authors: Dätsch Christiane
Published: August 2023

Literaturpreise können als Spiegel der gesellschaftlichen Selbstreflexion fungieren – das trifft auch auf den 1985 ins Leben gerufenen Adalbert-von-Chamisso-Preis zu, der Autor:innen in Deutschland auszeichnet, die nicht nur ins Land, sondern auch in die deutsche Sprache
eingewandert sind. Inzwischen ist der Chamisso-Preis zum Inbegriff einer ,Literatur von den Rändern‘ her geworden, die Einblicke in unterschiedliche Migrationsprozesse und -biografien gibt, und die in den vergangenen 35 Jahren viel mediale Beachtung gefunden hat.
Dialograum: Mathematik und Lyrik
Authors: Hoyer Jennifer M.
Published: August 2023

Einführung Obwohl die Literatur und die Mathematik im globalen Norden oft als quasi Gegenpole des Denkens wahrgenommen oder sogar situiert werden, scheinen sie oft etwas miteinander zu tun zu haben. Mein besonderes Interesse gilt den mehrfachen Überschneidungen
der Lyrik mit der Mathematik, da diese zwei Denkweisen besonders eng zusammenhängen. In zwei früheren Artikeln1 habe ich behauptet und beschrieben, dass und wie die Lyrik und die Mathematik gewisse fundamentale Eigenschaften gemeinsam haben, und darauf verweise ich die
Leser, die sich für diese ausführlichere Untersuchung interessieren. In diesem Beitrag werde ich den Sachverhalt aus einem anderen Blickwinkel anschauen: Wie deutschsprachige Dichter und Mathematiker beide Denkweisen zusammenbringen, um einem größeren Publikum den eignen
Verstand und das eigene Wissensvermögen zugänglicher zu machen. Ich gebe zuerst ein Beispiel von Mathematikern des zwanzigsten Jahrhunderts, doch meine Aufmerksamkeit gilt dieses Mal hauptsächlich Verfassern des siebzehnten Jahrhunderts, da in diesem Jahrhundert das Streben
nach einem denkenden, selbstbewussten Ich, das allmählich begreift, dass es für sich Zeit und Raum in Anspruch nimmt, sich wirklich in Gang setzt. Dabei spielt ein Dialograum der Lyrik und Mathematik eine wesentliche und für aktuelle Verhältnisse vielleicht ungewöhnliche
Rolle. Im Grunde genommen handelt es sich um eine Verfeinerung der Sprache, die sowohl das kritische Denkvermögen als auch die präzise Ausdrucksfähigkeit fördert.
Die Rezeption von Ludwig II. von Bayern in der französischen Literatur des Fin-de-siècle
Authors: Thil Eric
Published: August 2023

Einleitung Die Grundlage dieses Beitrags bildet eine Bemerkung aus dem Vorwort von G. Ducrey zu G. Eekhouds Roman Escal Vigor in seiner Anthologie Romans fin-de-siècle 1890–1900, in der der Forscher darauf hinweist, dass ,,Par sa vie, et surtout
par sa mort mystérieuse […], Louis II fascina en effet toute la seconde moitié du siècle. Il devint une véritable figure mythique – celle du rêve obstinément poursuivi, mais brisé par le réel“.1 Obwohl Ducrey
vier Romane nennt, die angeblich an der ,,fortune littéraire“ beteiligt waren, musste seine Hypothese noch überprüft werden. Ludwig II., der als Ästhet und Dandy von der bürgerlichen Masse missverstanden wurde, verkörperte die Sorgen der Künstler
des europäischen Fin-de-siècle. Es ist daher nicht verwunderlich, dass seine literarische Rezeption überaus zahlreich ist. Es lassen sich jedoch zwei Kategorien unterscheiden: zum einen Werke, die sich explizit auf ihn beziehen2 und zum anderen Werke, bei
denen sich der Leser zu Recht fragen kann, ob der Protagonist nicht eine Rezeption Ludwigs II. von Bayern ist. Von Mendès (1881) bis Fraigneau (1947) sind zahlreiche Auftritte des einsamen, unverstandenen, künstlerischen und verschwenderischen Aristokraten mit einer oft zweifelhaften
Sexualität zu beobachten. Neben einem literarischen Porträt dieser außergewöhnlichen historischen Persönlichkeit möchte diese Arbeit auch die Gründe für dieses Phänomen in der literarischen Rezeption des Fin-de-siècle, insbesondere
in Frankreich, untersuchen. Handelt es sich um einen motivierten politischen Akt, da das Trauma des Krieges von 1870 noch in den Köpfen der Franzosen steckt? Ist die Dekonstruktion der Figur (zunächst als namentlich genannter Protagonist und schließlich als Erinnerung, die
in einem Exkurs heraufbeschworen wird) aus einem soziologischen Blickwinkel zu lesen, der den Verfall der Aristokratie in eine wachsende Bourgeoisie zeigt? Oder ist es nur eine Allegorie der Dekadenz, des Fin-de-siècle, oder sogar der sterbenden Sprache/Schrift? Durch die Untersuchung
dieser verschiedenen Aspekte soll dieser Artikel dazu beitragen, einige Antworten auf das Gespenst Ludwigs II. zu geben, welches die europäische Vorstellungswelt heimgesucht hat.
Unterwegs in Griechenland. Jakob Philipp Fallmerayers Fragmente aus dem Orient und Hugo von Hofmannsthals Augenblicke in Griechenland
Authors: Lindinger Stefan , Petropoulou Evi
Published: August 2023

Die griechische Landschaft, wie sie heute ist, kann den ersten Blick enttäuschen, aber nur den ersten. Das heutige Griechenland ist ein entwaldetes Land, und daher eine gewisse Härte der Konturen, die freilich das Licht mit seinem geistreichen zarten Leben umspielt. Aber vergeblich
suchen wir die ,,schwellenden Hügel“, die Fallmerayer vom Meeresstrand landeinwärts bezauberten, oder das Dickicht von Edelkastanien, Platanen und Eichen, tausend Sträucher dazwischen, in das er von einer Bergklippe sich herunterließ. Aber die schwellenden Hügel
waren in der Umgebung von Trapezunt; in das Baumdickicht blickte er vom Athoskamm herab; noch heute hat die Halbinsel Volos […] ihre berühmten Kastanienwälder; dies alles liegt außerhalb des eigentlichen Griechenland.1Mit dieser Passage, die aus dem kurzen
Essay Griechenland von 1922 stammt, stellt Hugo von Hofmannsthal eine ausdrückliche intertextuelle Beziehung zu Jakob Philipp Fallmerayers Fragmenten aus dem Orient her, die 1845 in zwei Bänden erschienen sind.2 Fallmerayers Reisebericht dient Hofmannsthal
als Matrix,3 vor deren Hintergrund er sein eigenes Griechenland erlebt. Anknüpfungspunkt ist dabei die Landschaft, um deren Gegensätzlichkeit es in diesem Zitat geht, die aber auch die beiden Texte insgesamt wesentlich bestimmt. Dabei dreht sich vieles um die subjektiven
Erwartungen, die der Reisende an Griechenland hat, und um das Bewusstsein einer zeitlichen und räumlichen Diskrepanz, alles Faktoren, die Reiseerlebnis wesentlich beeinflussen. So ist sich Hofmannsthal darüber im Klaren, dass er von einem geographisch-politischen Blickwinkel aus
betrachtet ein anderes Griechenland bereist als dasjenige, das Fallmerayer besucht hat, was ihn aber nicht hindert, diesen Vergleich vorzunehmen.
Esculentoside a Prevents Cell Damage Induced by Carbapenem-Resistant Klebsiella Pneumoniae Infection
Authors:   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China, Xu Ya , Zhang Hong ,   Department of Clinical Laboratory, The Harison International Peace Hospital Affiliated to Hebei Medical University, Hengshui City, Hebei Province, 053000, China, Xu Linlin ,   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China, Sun Yang ,   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China, Shi Chunlei ,   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China, Gao Wen ,   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China, Xu Junwen ,   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China, Shao Keke ,   Department of Clinical Laboratory, The Fourth Affiliated Hospital of Nantong University, The First People’s Hospital of Yancheng, Yancheng City, Jiangsu Province, 224000, China
Published: August 2023

We have investigated the role of Esculentoside A in the progression of carbapenem-resistant Klebsiella pneumoniae infection in Human MLE-12 cells. The results of the studies show that Esculentoside A enhances the viability of carbapenem-resistant Klebsiella pneumoniae-infected MLE-12 cells and suppresses cell apoptosis. EsA also suppresses mitochondrial damage and oxidative stress in lung epithelial cells caused by carbapenem-resistant Klebsiella pneumoniae infections. The data further confirmed that Esculentoside A could relieve mitochondrial damage, apoptosis, and oxidative stress in carbapenem-resistant Klebsiella pneumonia-infected lung epithelial cells by regulating the mitogen-activated protein kinase pathway.
FAKTOR-FAKTOR PENENTU YANG MEMPENGARUHI ADOPSI CLOUD COMPUTING DI INDONESIA
Authors: Setiawan Sharen , Gui Anderes
Published: August 2023

Today's technology is getting more and more advanced. Cloud Computing is one of the fastest growing technologies in Indonesia. Cloud Computing technology has developed in various business sectors from manufacturing companies to services. The purpose of making this paper is to answer the determining factors that have an impact on the company's decision to adopt Cloud Computing in Indonesia, using 2 approaches to the technology adoption literature. The survey conducted is a modification of the previous research which was distributed via google form, where the prospective respondents are those who work in companies in Indonesia from 12 September 2022 to 2 October 2022. There are 66 respondents who participated in this survey. The analysis uses SMART PLS3 software, which tests Conbarch Alpha, Outer Loading, Coefficient Path, Composite Reliability, Discriminant Validity. The results of this study show that compatibility, and complexity have a significant impact on perceived usefulness, top management support has a significant impact on perceived ease of use, and perceived ease of use has an impact on cloud computing adoption.
PENGEMBANGAN MODEL UNIFIED THEORY OF ACCEPTANCE AND USE OF TECHNOLOGY UNTUK PENGGUNAAN ADOPSI MOBILE PAYMENT
Authors: Sani Asrul , Pusparini Nur Nawaningtyas , Budiyantara Agus , Supit Merliani Ivone
Published: August 2023

The retention of SMEs customers is of utmost importance for mobile payment service providers, particularly those who utilize mobile payments. Indonesia experienced a significant increase in the usage of mobile payment methods during the COVID-19 outbreak. Among the commonly utilized theoretical models in the Indonesian context of M-Payment payments, the Unified Theory of Acceptance and Use of Technology (UTAUT) model stands out. This proposed model is an expanded version of the UTAUT model, incorporating additional limited factors. It encompasses six variables that consider the diverse risks and costs perceived by users. The objective of this research is to analyze consumer behavior towards mobile payment systems using the UTAUT model and identify the determinants that consistently yield significant results. Data was successfully collected from 276 SMEs customers across various regions who utilize mobile payments through ShopeePay. The proposed model applies a minor segment structure using a regression seller model approach (SEM-PLS). The findings reveal that performance expectations, effort expectations, social influence, facilitation conditions, perceived risk, and perceived costs are the most influential predictors of users' intention to use the mobile payment system. Furthermore, behavioral intentions significantly influence actual usage behavior. The conclusion drawn from this research is that it enhances our understanding of the factors that determine the adoption of the mobile payment system, particularly in Indonesia.
KLASIFIKASI DATA MINING UNTUK MENENTUKAN KUALITAS UDARA DI PROVINSI DKI JAKARTA MENGGUNAKAN ALGORITMA K-NEAREST NEIGHBORS (K-NN)
Authors: Wiranata Ade Davy , Soleman Soleman , Irwansyah Irwansyah , Sudaryana I Ketut , Rizal Rizal
Published: August 2023

Air plays an important role in maintaining the life of living things on earth. Metabolic processes that occur in the bodies of living things cannot take place without oxygen from the air. The air pollution problem in DKI Jakarta is very serious and can cause health problems such as irritation of the respiratory tract, respiratory diseases, and long-term health problems such as cardiovascular disease and lung cancer. Air pollution can also affect environmental quality, reduce visibility, and damage ecosystems. The purpose of this study is to determine the accuracy of classifying air quality in DKI Jakarta province. The data mining method that the author uses is the K-Nearest Neighbors (K-NN) algorithm. From the results of the evaluation process of the K-Nearest Neighbors (K-NN) algorithm using the K-5 fold that has been carried out using the RapidMiner tool, the results of K-2 fold accuracy of 73.97%, K-3 fold accuracy of 72.60%, K-4 fold accuracy of 72.60%, and K-5 fold accuracy of 75.35%.
Torjuntavoitto retorisena figuurina
Authors: Tilli Jouni Aleksi
Published: August 2023

Tutkin artikkelissani torjuntavoiton käyttöä sotaan liittyvässä ja poliittisessa retoriikassa vuodesta 1940 aina 2020-luvulle saakka. Analysoin torjuntavoiton käsitteen syntyä ja sitä, miten sitä on käytetty jatkosotaan liittyen. Tarkastelen myös torjuntavoittoa sodan jälkeisessä vasemmiston retoriikassa, vaaleihin liittyen sekä osana Euroopan unionin ja Suomen välisten maatalous-poliittisten neuvotteluiden arviointia. Argumenttini on, että torjuntavoitto on levinnyt alkuperäisen käyttöyhteytensä ulkopuolelle siten, että sen kutsuminen retoriseksi figuuriksi on perusteltua. Siitä on tullut iskusana, jolla on pyritty kiteyttämään niin sotilaallinen, poliittinen kuin moraalinen asetelma. Tuon esille, miten torjuntavoittoretoriikka on perustunut metaforan, synekdokeen, metonymian sekä ironian eli niin sanottujen perustrooppien monitahoiselle käytölle. Artikkelini osoittaa, miten sodan ja politiikan sanastot ovat kietoutuneet toisiinsa.
Virtavesipolitiikan liikkuminen ja kääntäminen käytännöiksi
Authors: Kortelainen Jarmo , Rannikko Pertti
Published: August 2023

Virtavesipolitiikka on terminä vakiintumassa kuvaamaan virtaavia vesiä koskevaa sääntelyä ja hallintaa. Euroopan unionissa ja kansallisella tasolla on kehitetty poliittisia välineitä, joilla pyritään palauttamaan vesiympäristön luontaista virtausta ja lajikirjoa. Voimalaitospatojen purku on noussut yhdeksi virtavesipolitiikan tavoitteista. Analysoimalla kolmen pienen vesivoimalan purkukeskustelua tutkimme, millaisten prosessien kautta laajat poliittiset pyrkimykset liikkuvat virtavesipoliittisiksi käytännöiksi. Käsitteellä ”hydrososiaalinen konteksti” tarkoitamme voimalaitoksen purkukeskusteluun kytkeytyneitä toimijoita, materiaalisia elementtejä ja ylipaikallisia yhteyksiä. Käsitteen avulla analysoimme virtavesipolitiikan toteutumista ehdollistavia ja mahdollistavia tekijöitä ja hahmottelemme käsitteellistä jäsennystä virikkeeksi voimaloiden purkua koskevalle virtavesipolitiikan tutkimukselle. Tutkimus perustuu laajaan dokumentti- ja media-aineistoon sekä eri osallistahojen haastatteluihin.
Suvaitsevaisuus, rajat ja Suomen kuvittelu
Authors: Vogt Henri , Saikkonen Inga
Published: August 2023

Pääkirjoitus 2/2023
An Unsupervised Machine Learning-based Algorithm for Detecting Weak Impulsive Narrowband Quiet Sun Emissions and Characterizing Their Morphology
Authors: Bawaji Shabbir , Alam Ujjaini , Mondal Surajit , Oberoi Divya , Biswas Ayan
Published: August 2023

The solar corona is extremely dynamic. Every leap in observational capabilities has been accompanied by unexpected revelations of complex dynamic processes. The ever more sensitive instruments now allow us to probe events with increasingly weaker energetics. A recent leap in the low-frequency radio solar imaging ability has led to the discovery of a new class of emissions, namely weak impulsive narrowband quiet Sun emissions (WINQSEs). They are hypothesized to be the radio signatures of coronal nanoflares and could potentially have a bearing on the long standing coronal heating problem. In view of the significance of this discovery, this work has been followed up by multiple independent studies. These include detecting WINQSEs in multiple data sets, using independent detection techniques and software pipelines, and looking for their counterparts at other wavelengths. This work focuses on investigating morphological properties of WINQSEs and also improves upon the methodology used for detecting WINQSEs in earlier works. We present a machine learning-based algorithm to detect WINQSEs, classify them based on their morphology, and model the isolated ones using 2D Gaussians. We subject multiple data sets to this algorithm to test its veracity. Interestingly, despite the expectations of their arising from intrinsically compact sources, WINQSEs tend to be resolved in our observations. We propose that this angular broadening arises due to coronal scattering. Hence, WINQSEs can provide ubiquitous and ever-present diagnostic of coronal scattering (and, in turn, coronal turbulence) in the quiet Sun regions, which has not been possible until date.
Type Ia Supernova Nucleosynthesis: Metallicity-dependent Yields
Authors: Keegans James D. , Pignatari Marco , Stancliffe Richard J. , Travaglio Claudia , Jones Samuel , Gibson Brad K. , Townsley Dean M. , Miles Broxton J. , Shen Ken J. , Few Gareth
Published: August 2023

Type Ia supernova explosions (SN Ia) are fundamental sources of elements for the chemical evolution of galaxies. They efficiently produce intermediate-mass (with Z between 11 and 20) and iron group elements—for example, about 70% of the solar iron is expected to be made by SN Ia. In this work, we calculate complete abundance yields for 39 models of SN Ia explosions, based on three progenitors—a 1.4 M
⊙ deflagration detonation model, a 1.0 M
⊙ double detonation model, and a 0.8 M
⊙ double detonation model—and 13 metallicities, with 22Ne mass fractions of 0, 1 × 10−7, 1 × 10−6, 1 × 10−5, 1 × 10−4, 1 × 10−3, 2 × 10−3, 5 × 10−3, 1 × 10−2, 1.4 × 10−2, 5 × 10−2, and 0.1, respectively. Nucleosynthesis calculations are done using the NuGrid suite of codes, using a consistent nuclear reaction network between the models. Complete tables with yields and production factors are provided online at Zenodo:Yields (https://doi.org/10.5281/zenodo.8060323). We discuss the main properties of our yields in light of the present understanding of SN Ia nucleosynthesis, depending on different progenitor mass and composition. Finally, we compare our results with a number of relevant models from the literature.
A CEERS Discovery of an Accreting Supermassive Black Hole 570 Myr after the Big Bang: Identifying a Progenitor of Massive z > 6 Quasars
Authors: Larson Rebecca L. , Finkelstein Steven L. , Kocevski Dale D. , Hutchison Taylor A. , Trump Jonathan R. , Arrabal Haro Pablo , Bromm Volker , Cleri Nikko J. , Dickinson Mark , Fujimoto Seiji , Kartaltepe Jeyhan S. , Koekemoer Anton M. , Papovich Casey , Pirzkal Nor , Tacchella Sandro , Zavala Jorge A. , Bagley Micaela , Behroozi Peter , Champagne Jaclyn B. , Cole Justin W. , Jung Intae , Morales Alexa M. , Yang Guang , Zhang Haowen , Zitrin Adi , Amorín Ricardo O. , Burgarella Denis , Casey Caitlin M. , Chávez Ortiz Óscar A. , Cox Isabella G. , Chworowsky Katherine , Fontana Adriano , Gawiser Eric , Grazian Andrea , Grogin Norman A. , Harish Santosh , Hathi Nimish P. , Hirschmann Michaela , Holwerda Benne W. , Juneau Stéphanie , Leung Gene C. K. , Lucas Ray A. , McGrath Elizabeth J. , Pérez-González Pablo G. , Rigby Jane R. , Seillé Lise-Marie , Simons Raymond C. , de la Vega Alexander , Weiner Benjamin J. , Wilkins Stephen M. , Yung L. Y. Aaron ,   and The CEERS Team
Published: August 2023

We report the discovery of an accreting supermassive black hole at z = 8.679. This galaxy, denoted here as CEERS_1019, was previously discovered as a Lyα-break galaxy by Hubble with a Lyα redshift from Keck. As part of the Cosmic Evolution Early Release Science (CEERS) survey, we have observed this source with JWST/NIRSpec, MIRI, NIRCam, and NIRCam/WFSS and uncovered a plethora of emission lines. The Hβ line is best fit by a narrow plus a broad component, where the latter is measured at 2.5σ with an FWHM ∼1200 km s−1. We conclude this originates in the broadline region of an active galactic nucleus (AGN). This is supported by the presence of weak high-ionization lines (N V, N IV], and C III]), as well as a spatial point-source component. The implied mass of the black hole (BH) is log (M
BH/M
⊙) = 6.95 ± 0.37, and we estimate that it is accreting at 1.2 ± 0.5 times the Eddington limit. The 1–8 μm photometric spectral energy distribution shows a continuum dominated by starlight and constrains the host galaxy to be massive (log M/M⊙ ∼9.5) and highly star-forming (star formation rate, or SFR ∼ 30 M⊙ yr−1; log sSFR ∼ − 7.9 yr−1). The line ratios show that the gas is metal-poor (Z/Z
⊙ ∼ 0.1), dense (n

e
∼ 103 cm−3), and highly ionized (log U ∼ − 2.1). We use this present highest-redshift AGN discovery to place constraints on BH seeding models and find that a combination of either super-Eddington accretion from stellar seeds or Eddington accretion from very massive BH seeds is required to form this object.
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH)
Authors: Rivilla Víctor M. , Sanz-Novo Miguel , Jiménez-Serra Izaskun , Martín-Pintado Jesús , Colzi Laura , Zeng Shaoshan , Megías Andrés , López-Gallifa Álvaro , Martínez-Henares Antonio , Massalkhi Sarah , Tercero Belén , de Vicente Pablo , Martín Sergio , Andrés David San , Requena-Torres Miguel A. , Alonso José Luis
Published: August 2023

We report the first detection in the interstellar medium (ISM) of a C2H5O2N isomer: syn-glycolamide (NH2C(O)CH2OH). The exquisite sensitivity at sub-mK levels of an ultradeep spectral survey carried out with the Yebes 40 m and IRAM 30 m telescopes toward the G+0.693–0.027 molecular cloud has allowed us to unambiguously identify multiple transitions of this species. We derived a column density of (7.4 ± 0.7) × 1012 cm−2, which implies a molecular abundance with respect to H2 of 5.5 × 10−11. The other C2H5O2N isomers, including the higher-energy anti conformer of glycolamide and two conformers of glycine, were not detected. The upper limit derived for the abundance of glycine indicates that this amino acid is surely less abundant than its isomer glycolamide in the ISM. The abundances of the C2H5O2N isomers cannot be explained in terms of thermodynamic equilibrium; thus, chemical kinetics need to be invoked. While the low abundance of glycine might not be surprising, based on the relative low abundances of acids in the ISM compared to other compounds (e.g., alcohols, aldehydes, or amines), several chemical pathways can favor the formation of its isomer glycolamide. It can be formed through radical–radical reactions on the surface of dust grains. The abundances of these radicals can be significantly boosted in an environment affected by a strong ultraviolet field induced by cosmic rays, such as that expected in G+0.693–0.027. Therefore, as shown by several recent molecular detections toward this molecular cloud, it stands out as the best target to discover new species with carbon, oxygen, and nitrogen with increasing chemical complexity.
Outflowing Helium from a Mature Mini-Neptune
Authors: Zhang Michael , Dai Fei , Bean Jacob L. , Knutson Heather A. , Rescigno Federica
Published: August 2023

We announce the detection of escaping helium from TOI 2134b, a mini-Neptune a few gigayears old. The average in-transit absorption spectrum shows a peak of 0.37% ± 0.05% and an equivalent width of W
avg = 3.3 ± 0.3 mÅ. Among all planets with helium detections, TOI 2134b is the only mature mini-Neptune, has the smallest helium signal, and experiences the lowest X-ray and ultraviolet (XUV) flux. Putting TOI 2134b in the context of all other helium detections, we report the detection of a strong (p = 3.0 × 10−5) and theoretically expected correlation between F
XUV/ρ
XUV (proportional to the energy-limited mass-loss rate) and R
*
W
avg (roughly proportional to the observationally inferred mass-loss rate). Here W
avg is the equivalent width of the helium absorption, and ρ
XUV is the density of the planet within the XUV photosphere, but the correlation is similarly strong if we use the optical photosphere. Having the lowest value on both axes, TOI 2134b anchors the relation. We encourage further observations to fill in the missing regions of this parameter space and improve estimates of F
XUV.
First Results from the JWST Early Release Science Program Q3D: Benchmark Comparison of Optical and Mid-infrared Tracers of a Dusty, Ionized Red Quasar Wind at z = 0.435
Authors: Rupke David S. N. , Wylezalek Dominika , Zakamska Nadia L. , Veilleux Sylvain , Bertemes Caroline , Ishikawa Yuzo , Liu Weizhe , Sankar Swetha , Vayner Andrey , Grace Lim Hui Xian , McCrory Ryan , Murphree Grey , Whitesell Lillian , Shen Lu , Liu Guilin , Barrera-Ballesteros Jorge K. , Chen Hsiao-Wen , Diachenko Nadiia , Goulding Andy D. , Greene Jenny E. , Hainline Kevin N. , Hamann Fred , Heckman Timothy , Johnson Sean D. , Lutz Dieter , Lützgendorf Nora , Mainieri Vincenzo , Nesvadba Nicole P. H. , Ogle Patrick , Sturm Eckhard
Published: August 2023

The [O iii] 5007 Å emission line is the most common tracer of warm, ionized outflows in active galactic nuclei across cosmic time. JWST newly allows us to use mid-IR spectral features at both high spatial and spectral resolution to probe these same winds. Here we present a comparison of ground-based, seeing-limited [O iii] and space-based, diffraction-limited [S iv] 10.51 μm maps of the powerful, kiloparsec-scale outflow in the Type 1 red quasar SDSS J110648.32+480712.3. The JWST data are from the Mid-InfraRed Instrument. There is a close match in resolution between the data sets (∼0.″6), in ionization potential of the O+2 and S+3 ions (35 eV) and in line sensitivity (1–2 × 10−17 erg s−1 cm−2 arcsec−2). The [O iii] and [S iv] line shapes match in velocity and line width over much of the 20 kpc outflowing nebula, and [S iv] is the brightest line in the rest-frame 3.5–19.5 μm range, demonstrating its usefulness as a mid-IR probe of quasar outflows. [O iii] is nevertheless intrinsically brighter and provides better contrast with the point-source continuum, which is strong in the mid-IR. There is a strong anticorrelation of [O iii]/[S iv] with average velocity, which is consistent with a scenario of differential obscuration between the approaching (blueshifted) and receding (redshifted) sides of the flow. The dust in the wind may also obscure the central quasar, consistent with models that attribute red quasar extinction to dusty winds.
Sexual dimorphism of feeding stylets in some Thysanoptera – Phlaeothripinae, with description of two new species of Haplothrips from China
Authors: Dang Lihong , Mound Laurence
Published: August 2023

Sexual dimorphism in feeding stylets is recorded among some Phlaeothripinae that have maxillary stylets long and close together in females but wider apart in males. These atypical long feeding stylets have been found in two new species of Haplothrips from China, both taken on Artemisia from Plateau zone. Two species are described and illustrated: H. helanshanensissp. nov. from Helanshan Mountain and H. longistylussp. nov. from Tibet. There is no evidence of any association between feeding behaviors and feeding stylet orientation.
Dynamical analysis of the effects of circadian clock on the neurotransmitter dopamine
Authors: Li Ying , Zhao Zhao , Tan Yuan-yuan , Wang Xue
Published: August 2023

The circadian clock is an autonomous timing system that regulates the physiological and behavioral activities of organisms. Dopamine (DA) is an important neurotransmitter that is associated with many biological activities such as mood and movement. Experimental studies have shown that the circadian clock influences the DA system and disorders in the circadian clock lead to DA-related diseases. However, the regulatory mechanism of the circadian clock on DA is far from clear. In this paper, we apply an existing circadian-dopamine mathematical model to explore the effects of the circadian clock on DA. Based on numerical simulations, we find the disturbance of the circadian clock, including clock gene mutations, jet lag and light pulses, leads to abnormal DA levels. The effects of mutations in some clock genes on the mood and behavior of mice are closely related to DA disruptions. By sensitivity analysis of DA levels to parameter perturbation, we identify key reactions that affect DA levels, which provides insights into modulating DA disorders. Sudden changes in external light influence the circadian clock, bringing about effects on the DA system. Jet lag causes transient DA rhythm desynchronization with the environment and the influence of jet lag in different directions on DA level and phase varies. Light pulses affect the amplitude and phase shift of DA, which provides a promising method for treating DA disorders through light exposure. This study helps to better understand the impact of the circadian clock on the DA system and provides theoretical support for the treatment of DA disorders.
The Lyric/Antilyric Paradigm, Hybridity, and Engaged Poetry in American and Post-Yugoslav Literature
Authors: Đurić Dubravka
Published: August 2023

The central theme of this article is hybridization in the field of American and post-Yugoslav poetry. Hybridization raises the question of the status of experimentation in the field of poetry production, and with that in mind, I juxtapose American and post-Yugoslav poetry. I posit that a strong anti-lyrical paradigm was established in post-World War II American poetry, especially in the 1970s. This was possible thanks to the activity of the Language poets who simultaneously emerged as theorists, which coincided with the turn toward theory. The hybrid poem was the result of the response of mainstream poets who took up the procedures of Language poetry and hybridized them with the lyric paradigm. On the other hand, I argue that in post-Yugoslav cultures, where the lyric paradigm has reigned almost continuously since World War II (with a brief interruption in the 1960s) elements of the experiment have returned in an amalgam of hybrid poetic procedures. Therefore, I discuss here four books by post-Yugoslav women writers Snežana Žabić, Ana Seferović, Ivana Sajko, and Nina Dragičević, highlighting the constitutive elements in their hybrid structures. Since their books are socially and politically engaged and contain documentary material, and since an important source of their hybridity is the stimulus coming from the performing arts, I place their work in the broader context of these contemporary trends.
The Effect of Silica Powder Based on Methyltrimethoxysilane and Silica Sand as a Hydrophobic Material
Authors: Mughayyirah Yuniar , Silvia Linda , Zainuri Mochammad
Published: August 2023

In this research, a hydrophobic surface has been successfully created using a mixture of silica sand and methyltrimethoxysilane (MTMS) precursor. This research aims to determine the effect of varying the volume of MTMS on the hydrophobic surface. The MTMS as silica precursor was synthesized with Stöber method. The variation used is the volume of the MTMS precursor, while the silica from silica sand is made constant. The volume variation of the MTMS precursor is 9.5 ml, 19 ml, 28.5 ml and 38 ml. The MTMS/SiO2 composite which has been synthesized then get mixed with steel ship paint and coated on the steel plate surface as a topcoat. The MTMS/SiO2 composite was further characterized by X-ray Powder Diffraction (XRD), Scanning Electron Microscopy (SEM), Water Contact Angle (WCA), and Atomic Force Microscope (AFM) which were employed to investigate crystal structure, morphology of particle, hydrophobicity on a surface, and topography of the three-dimensional surface layer respectively. The type of liquid used in the WCA characterization is seawater. XRD characterization results show that silica sand has a quartz phase, MTMS has an amorphous phase and MTMS/SiO2 composite tends to have an amorphous phase. SEM characterization show that the particle size of silica sand that has been mixed with MTMS is around 8 – 20 μm. WCA characterization show that the addition of silica powder on the topcoat increase surface roughness and WCA, so that the steel plate surface has good hydrophobic properties. The highest water contact angle obtained in this research was 109o by seawater.
Challenges and Opportunities in Password Management: A Review of Current Solutions
Authors: Fernando W. P. K. , Dissanayake D. A. N. P. , Dushmantha S. G. V. D. , Liyanage D. L. C. P. , Karunatilake C.
Published: August 2023

For over six decades, passwords have served as the primary authentication mechanism for almost all modern computer systems. However, password management is a challenging task for most computer users, and that has led users to many malpractices that open the door for most information security breaches over time. Despite many efforts, no alternative solution has ever succeeded in replacing passwords as the primary authentication mechanism. As a result, users are now heavily relying on password managers to alleviate the burden of manual password management. This paper addresses the topic of password management about different types of password managers and their inherent limitations. By evaluating the existing password management approaches and identifying potential improvements, this paper aims to signify an important research gap that exists in the study area; the need for fully automating the process of manual password management.
Prevalence of Vesicoureteral Reflux in Children with Urinary Tract Infection
Authors: Naseri Mitra , Tafazoli Niayesh , Tafazoli Nooshin
Published: August 2023

Vesicoureteral reflux (VUR) is reported in 30%–50% of children affected by urinary tract infection (UTI). We aimed to investigate the frequency of VUR in children presenting with UTI and the changes in its prevalence from birth up to 18 years. This research was an observational retrospective study in the nephrology clinic of an academic tertiary hospital during 2003–2016. Patients with UTI subjected to direct cystourethrography were enrolled (908 patients, 86.23% of girls and 13.77% of boys). They were aged from 3 days to 214 months (33 ± 33.2 months). VUR was observed in 419 of 908 (46.14%) cases. High-grade VUR (VUR Grades IV–V) and VUR were significantly more prevalent in boys (P = 0.001 for both). Only 9.2% of the VUR subjects were diagnosed after 5 years of age. The patients with VUR developed UTI at a significantly younger age compared with those without VUR (P = 0.0001). Abnormal kidney ultrasound results were significantly more common in patients with VUR than in those without VUR (P = 0.0001). The prevalence of VUR in the 1st, 2nd, 3rd, 4th, and 5th years of life was estimated to be 56.64%, 48.2%, 49.46%, 35.8%, and 45.07%, respectively. The highest and lowest VUR prevalence was 56.64% (1st year of life) and 0% (13–18 years). In addition, severe VUR was not an uncommon finding, and affected 10.7% of the total population. The results indicated a decrease in the prevalence of VUR with increased age when considering the five main age subgroups of childhood.
District Residency Programme in India
Authors: Dharmshaktu Ganesh Singh
Published: August 2023

The recently launched District Residency Programme (DRP) has been an ambitious and disruptive change in Indian postgraduate medical education. National Medical Commission (NMC) advocates community-centric objectives in the 3-month mandatory training of postgraduate medical students within their residency tenure. The understanding of problems at the community level and “working while serving” model, despite initial hiccups, is supposed to bring impactful changes in the future. A brief strength, weakness, opportunities, and threat (SWOT) analysis of this grand initiative is author’s personal perspective in this context. The initiative, although disturbing to the smooth flow of residency, may offer certain benefits. Looking it differently, from an undesirable assignment to an important learning module, is the way forward for an enriching experience.
Comparative Evaluation of Intravenous Tramadol and Dexmedetomidine for Treatment of Shivering after Spinal Anesthesia
Authors: Choudhury Siddhanta , Panda Bimal Krushna , Pradhan Diptimayee , Padhi Neha , Soren Dulal Kishun , Seth Debjani
Published: August 2023

Background:

Intraoperative shivering is a common complication in neuraxial anesthesia, with an incidence of 40%–50%. Shivering is an uncomfortable experience for the patient. It has many severe effects, such as increased oxygen consumption and carbon dioxide production, causing arterial hypoxia and myocardial ischemia. It contributes to delayed wound healing and late discharge from postanesthetic care. Our study aimed at a comparative evaluation of intravenous (IV) tramadol and dexmedetomidine to treat shivering after spinal anesthesia.

Materials and Methods:

The present work was a randomized, prospective, double-blinded study conducted at VIMSAR, Burla. One hundred patients of the American Society of Anesthesiologists Grades I and II (18–65 years of age), posted for various surgical procedures under spinal anesthesia who developed shivering, were included. After randomization, they were grouped into two groups (50 patients each). Injection dexmedetomidine (0.5 μg/kg) in Group D and injection tramadol (1 mg/kg) in Group T were given as a slow IV bolus. Grade and time taken for the onset of shivering were recorded after the spinal anesthesia. Time for cessation of shivering after IV bolus, recurrence of shivering, response rate, hemodynamic and side effects such as bradycardia, hypotension, nausea, sedation, and vomiting were analyzed.

Results:

Cessation of shivering was achieved earlier in Group D (3.04±0.94) than in Group T (6.62±1.49). The response rate was 100% in both groups. Vomiting and nausea were very high in Group T (30%). Twenty percent of patients were sedated with a sedation score of 2 in Group D only. A recurrence of shivering was observed in Group T (24%), requiring a repeat dose administration.

Conclusion:

Both tramadol and dexmedetomidine are effective in controlling shivering, but the time taken for cessation of shivering and adverse effects observed in the case of dexmedetomidine were lesser. Dexmedetomidine also provided complete cessation of shivering.
Diagnosis and treatment of female alopecia: Focusing on the iron deficiency-related alopecia
Authors: Lin Chia-Shuen , Chan Li-Yi , Wang Jen-Hung , Chang Chung-Hsing
Published: August 2023

ABSTRACT

Objectives:

Alopecia is a soft but meaningful complaint affecting women’s physical and psychological health. Female alopecia (FA) has diverse etiologies. Nonetheless, FA is stereotyped as female pattern hair loss, also known as female androgenetic alopecia, and has not been thoroughly investigated. This study aimed to identify the etiologies of FA at a tertiary medical center in Eastern Taiwan.

Materials and Methods:

This retrospective study enrolled female patients with hair loss who visited the dermatology department of (blinded information). A complete history taking was obtained, including the onset and duration of alopecia, menstruation, gynecologic diseases, psychological stress, underlying diseases, vaccination, and dietary habits, etc., Blood tests were performed, including hemoglobin (Hb), ferritin, Zn, autoimmune and thyroid profiles, etc., Iron deficiency (ID) was defined as serum ferritin level <60 ng/mL. The hair condition, ferritin, and Hb levels were monitored every 3 months after supplementation.

Results:

A total of 155 patients were recruited. The etiologies of FA were diverse; the top five etiologies were nutrient deficiencies (83.9%), autoimmune (14.8%) and thyroid (7.7%) diseases, psychological stress (12.3%), and coronavirus disease 2019 (COVID-19) vaccination (6.5%). ID accounted for 70.3% of cases. The disease duration was an important prognostic factor for the improvement of serum ferritin. Patients with subjective improvement of hair regrowth also had more increase of ferritin levels after iron supplementation. The corresponding ferritin level for female anemia (Hb: 12.0 g/dL) was 5.1 ng/mL, lower than the adequate level for hair growth (40–60 ng/mL), the corresponding Hb level of which was 13.1–13.8 g/dL.

Conclusion:

The causes of FA varied, including nutrient deficiencies, autoimmune diseases, psychological stress, thyroid diseases, and COVID-19 vaccination, etc., Therefore, a complete survey before treatment is essential. Seventy percentage of FA cases were ID-FA. We suggest to redefine the serum ferritin level ≥60 ng/mL, with the corresponding Hb ≥13.0 g/dL as the normal range for early diagnosis. Initiation of iron supplementation within 6 months would result in a better prognosis.
Pre-Service Mathematics Teachers' Pattern Conversion Ability: Generating Figural Patterns Based on Number Patterns
Authors: KILIÇ Çiğdem
Published: August 2023

In that current study, pattern conversion ability of 25 pre-service mathematics teachers (producing figural patterns following number patterns) was investigated. During the study participants were asked to generate figural patterns based on those number patterns. The results of the study indicate that many participants could generate different figural patterns effectively, mostly by using geometric shapes. Moreover, most of the participants could generate linear figural patterns successfully compared with non-linear patterns based on number patterns and used different pattern generating strategies. In that study, some of the participants had issues while generating figural patterns.
Editorial
Authors: Eriksson Inger , Polotskaia Elena
Published: August 2023

Editorial
Designing algebraic tasks for 7-year-old students - a pilot project inspired by Davydov's learning activity concept
Authors: Eriksson Inger , Jansson Anders
Published: August 2023

The issue of this article is to identify and discuss what conditions may be necessary to build into tasks to make it likely for students to be involved in an algebraic Learning Activity inspired by Davydov. Data from a pilot study was used in which a group of students (N=28) in grade 1 (7-year-olds) were invited to participate in discussions and laborations of how to decide whether two or more variables are equal or not, and making unequal “variables” equal by the help of measurement, abstract symbols and relational material. Three tasks were designed and from the analysis we will highlight five requirements for tasks that have the potential to enable students to engage in an algebraic learning activity.
A design study for an Italian fifth grade class following Davydov traces
Authors: Tortora Roberto , Mellone Maria
Published: August 2023

We present a design study developed in an Italian school. Taking inspiration from the work of the Russian psychologist V. V. Davydov, we have reformulated some activities of his curriculum for the first grade, in order to adapt them to a didactic project for a fifth grade class. In the paper we firstly expose our theoretical assumptions and the hypotheses that stand at the roots of the project. Then, after a brief description of the entire educational path, we present some excerpts of it in order to analyse the processes by which the pupils give sense to algebraic language. Finally we argue that Davydov's ideas anticipate the claims of Early Algebra, nowadays very popular within the research community.