bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluación del nivel de seguridad informática desplegado en las instituciones de educación superior de la red RIT II
Authors:   Instituto Tecnológico Universitario Rumiñahui, Cajamarca Gerardo , Ron Mario , Chamorro Patricio , Genovez Carlos
Published: January 2023

El objetivo de la presente investigación es determinar una línea base sobre la realidad de la seguridad de la información en los institutos de educación superior de la red RIT II, para lo cual se analizó la información obtenida en la encuesta realizada al Instituto Universitario Rumiñahui, relacionada al nivel de seguridad tecnológica con la que cuenta dicha institución. El problema que mayormente se evidencia es la falta de políticas de seguridad de la información y la no implementación de controles para el manejo de información y seguridad en la infraestructura de acuerdo al análisis de los resultados obtenidos. El objetivo es identificar las vulnerabilidades que presentan los Institutos Tecnológicos Superiores del Ecuador con la finalidad que estos riegos posteriormente sean mitigados con la elaboración de políticas y controles que permitan minimizar el impacto en caso de producirse un evento de seguridad. Se aplicó el método deductivo y la investigación de exploración para examinar la información obtenida de las encuestas generadas utilizando el marco de referencia ISO / IEC 27001 -27002 para definir un estándar de análisis de aceptación mundial. Este análisis pudo determinar las vulnerabilidades más críticas a las que se encuentra expuesta la institución educativa objetivo del presente estudio. Como resultado de esta investigación se encontró que el índice de seguridad de las instituciones analizadas es medianamente aceptable en sus controles de seguridad, pero se evidencia que no existe la utilización de marcos de seguridad referenciales.
Postpartum Depression: Neglected Issue in Maternal Health
Authors: Ola Mousa  , Sarah Yahya Al Sabati  , Fatemah Al Khars
Published: January 2023

Mental health challenges can develop during the prenatal and postpartum periods when women face physical,mental, and social adjustments. The major public health concern is postpartum depression, which poses aserious threat to mothering and has serious consequences for families. The number of women who experiencedepression during pregnancy or within the first 12 months after giving birth ranges from 10 to 20 percent.The clinics primarily use questionnaires to diagnose patients. Treatment options include psychotherapy andantidepressant medications. Postpartum depression and the factors associated with postpartum depressionamong women of childbearing age are the focus of this review.
A Study to Assess the Occupational Stress among Staff Nurses Working in Narayana General Hospital, Nellore
Authors: Pavithramma Gangaram
Published: January 2023

Background: Stress is intensified as a non specific response to an internal and external environmental changesor threat 1. Occupational stress is a harmful physical and emotional response that occurs when the requirementof the job do not match with the capabilities. Nurse is the one who spend with the patient for 24 hours. So it’snecessary to understand the nurses occupational stress level.“A study to assess the occupational stress among staff nurses working in Narayana general hospital, Nellore”,was conducted in partial fulfillment of requirement for degree of Master of Science in Nursing at NarayanaCollege of nursing, Dr. NTR University, Andhra Pradesh.Objectives: To assess the level of occupational stress among staff nurses working in Narayana general hospital,Nellore.To find the association between the level of occupational stress among staff nurses with selected sociodemographic variables.Method: Descriptive research design and convenient sampling technique was adopted among 200 samples ofstaff nurses in Narayana general hospital based on the inclusion and exclusion criteria. Data was collected byusing tool which consist of socio demo graphic variables and work stress scale which consist of 30 questions.Data was analyzed and interpreted by using descriptive and inferential statistical methods.Results: Results shows that the level of occupational stress, 140 (70%) of respondents had Mild occupational stress,58(29%) of respondents had Moderate occupational stress and 2(1%) of respondents had severe occupationalstress.In association of the level of occupational stress with socio demographic variables, there is no significantassociation between the Age, Sex, Experience, Qualification, Area of working, Marital status, Religion with levelof occupational stress but there is a significant association of Designation Area of living with occupational stress.Conclusion: Overall finding showed that, 70% of respondents had Mild occupational stress, 29% had moderateoccupational stress and 1% had severe occupational stress. So the null hypothesis is rejected. These findingsinfluenced the need for formulating an information guide sheet to manage occupational stress among staffnurses working Narayana general hospital, Nellore.
The Related Factors to Nursing Documentation at General Hospital Dr. Zainoel Abidin Banda Aceh
Authors: Saumalina  , Marlina  , Said Usman
Published: January 2023

Nursing documentation is written information resulting from the nursing process to patients. Good documentation reflects accuracy in providing services. Inadequate supervision and motivation are some problems that affected to the nursing documentation. This study aimed to determine the factors related to nursing documentation at the General Hospital dr. Zainoel Abidin Banda Aceh. This study used a quantitative study; analytic survey with a cross-sectional approach. The sample sizes are 185 respondents on nurses and 185 medical records. Data collection tools are in the form of questionnaires to the nurses and observation sheets to the medical records. Data analysis was performed with chi-square and logistic regression tests. The results showed that the variables related to nursing documentation were supervision (p-value=0.00 0) and motivation (p-value=0.008). The factor most related to nursing documentation is supervision with an OR value of 6.0 52. Supervision has the most to do with nursing documentation. Periodic supervision and the presence of new technology in terms of documentation can improve the quality of nursing documentation.
A Study to Assess the Effectiveness Of Structured Teaching Programme on Knowledge Regarding Hand Exercise in Prevention of AV Fistula Dysfunction among Hemodialysis Patient In Selected Hospital, Tumkur
Authors: Shilpa Rani R  , Eswarappa S  , Dayanand C  , Balaji M. S.  , Geethanjali S
Published: January 2023

Health is wealth; this phrase is very popular because happiness lies in the health of man. Good health helps to develop charm, grace, and happy mind. Kidneys are a pair of bean shaped organs located either side of the lower back just below the rib cage. Renal failure is the severe impairment or total lack of kidney function. Chronic Renal Failure (CRF) develops insidiously overtime and necessitates the initiation for long term survival.1 Dialysis is used to remove fluid and uremic waste products from the body when the kidneys are not able to do so. It is the best method to use arteriovenous fistula (AVF) as a vascular access. Compared to other vascular access such as venous catheter and a synthetic graft, arteriovenous fistula is most used method as it has fewer complications. Complications can occur even if we are careful, but are much less common if you take a few precautions. Hand exercise is essential to perform in prevention of AV fistula dysfunction. The aim of the study was to assess the effectiveness of Structured Teaching Programme on knowledge regarding Hand exercise among Hemodialysis patients in selected hospital, Tumkur.Methods: n evaluative approach with pre-experimental one group pre-test post-test design was used with purposive sampling technique to select the sample (N=50). A structured knowledge questionnaire was used to assess the Knowledge and STP was administered to find its effectiveness. The collected data was analyzed by using Descriptive statistics like mean, median and standard deviation, and inferential statistics like paired and independent‘t’ test was included to test the hypothesis and Chi-square test was included to test the association of knowledge scores with demographic variables.Results: The mean percentage of post-test knowledge score (79.09 %) was higher than the mean percentage of pre-test knowledge score (36.54%). The calculated’ value [t (49) = 21.01] is greater than the table value (0.05, 49df) = 1.96. It showed a significant difference between mean pre- and post- test knowledge scores. Calculated x2 values are showed no significant association between any of the variables with their post-test knowledge scores. Therefore, no significant association was found between these other variables and post-test knowledge level of Hemodialysis patients.

Interpretation & Conclusion: The findings of the study showed that there was a deficit in knowledge ofHemodialysis patients before administration of STP. The results indicated that the STP is effective in increasingthe knowledge of Hemodialysis patients on Hand exercise.
Therapeutic Communication Experience of Nurses With Chemotherapy Patients in a General Hospital
Authors: Yenni Harianthy  , Asniar Asniar  , Marthoenis Marthoenis
Published: January 2023

Cancer patients have special communication needs. Therapeutic communication can help patients, families, and care teams make decisions and improve patients’ well-being and quality of life. This study aimed to understand the therapeutic communication experience of nurses with patients undergoing chemotherapy. This study employed a descriptive phenomenology design using in-depth interviews involving eight key participants and one associate participant. The key participants were nurse practitioners, and the associate participant was the vice head of the chemotherapy ward. The results of interviews and field notes were analyzed using Colaizzi’s method of data analysis. Nine themes emerged from this study that is therapeutic communication is perceived as beneficial for patients, therapeutic communication is perceived as useful for nurses, patient conditions that hinder therapeutic communication, nurse conditions that interfere with therapeutic communication, personal therapeutic communication strategies, interpersonal therapeutic communication strategies, regular chemotherapy training, training for ongoing therapeutic communication, and chemotherapy-related information media to facilitate therapeutic communication. The study results suggest the need for chemotherapy training and continuous therapeutic communication for nurses in the chemotherapy ward of a general hospital.
Dry needling for physical therapy of scar. A protocol for a systematic review
Authors:   Electromyography and Pelvic Floor Muscles Laboratory, Department of Physical Medicine, Institute of Physiotherapy and Health Sciences, Academy of Physical Education,40-065 Katowice, Poland., Chmielewska Daria , Malá Jitka , Kobesova Alena , Opala-Berdzik Agnieszka , Nocuń Magdalena , Kuszewski Michał , Dolibog Patrycja , Dolibog Paweł , Stania Magdalena
Published: January 2023

Review question / Objective: The research question was defined according to the PICOS criteria: P - participants of any age with a scar / keloid / hypertrophic scar. I - interventions: local management with needling, dry needling, acupuncture or combination of local needling / dry needling / acupuncture with distal acupuncture. C - comparator: local intervention (physical therapy) aimed at scar, keloid or hypertrophic scar treatment or no treatment. O - objectives: changes in pain associated with scar, keloid or hypertrophic scar. Pigmentation, vascularity, height / thickness, pliability / plasticity, itchiness of the scar area. S - study design: The articles were included based on the following inclusion criteria: full text articles in English, randomized controlled trials, clinical trials, case reports, case-series, case control studies.
MATHEMATICAL MODEL OF THE ELECTRICITY PRICES ON THE SPOT MARKET
Authors: Vedran Uran
Published: January 2023

The price on the electricity market is constantly changing. Owing to the characteristics of electricity market the future movement of the price is relatively hard to predict. For this reason the following three processes are applied: the process of the future electricity price movement according to the geometric Brownian motion, the mean reversion process, and the price spikes process. The paper discusses all three processes, including their definitions, formulas and applications, as well as their upsides and downsides.
Propuesta de Evaluación Formativa para el aprendizaje autónomo en estudiantes del sexto de primaria de una institución educativa, Talara 2022
Authors: Juárez Cruz Carmen Rosa
Published: January 2023

Esta investigación busca desarrollar una propuesta basada en procesos de evaluación formativa para favorecer el aprendizaje autónomo de los estudiantes de sexto grado de Primaria en un contexto global del aprendizaje. Asume el enfoque cuantitativo de tipo no experimental transaccional, puesto que se recopilaron datos en un momento determinado sin manipular variable. Usa el diseño descriptivo que busca caracterizar el aprendizaje autónomo de los estudiantes de sexto grado de Primaria de una institución educativa de Talara, en la región Piura. A partir los resultados de la información recogida de los estudiantes que afirman ser acompañados en su proceso de aprendizaje; sin embargo, no siempre los criterios de evaluación propuestos por los docentes durante la retroalimentación en el aula, son entendibles. Ello evidencia una necesidad formativa en la institución educativa en mención, a partir de ello se diseñó la propuesta de un modelo de evaluación formativa orientado hacia el desarrollo del aprendizaje autónomo del estudiante.
EXPLORATION OF THE CULTURAL ASPECTS OF HINDI FOOD EXPRESSIONS CONCERNING HINDI FOREIGN LANGUAGE EDUCATION
Authors: Sharma Dwivedi Anand Prakash
Published: January 2023

Food is rooted in human evolution. The form of food and the communication system both have been ever-evolving parallel with society and culture. Thus food and communication are near related to social customs and cultural practices. Due to the growing interest in gastronomy globally, food is now considered a significant source for exploring a geographical area's cultural characteristics. Like other civilizations and cultures, food and culture in India go hand in hand, which we can see in expressions of diverse Indian languages. Hindi, though a modern Indian language, however, is deeply rooted in the cultural past. Therefore, the tradition of cultural perception and social practice is active as a background of Hindi expressions. In this study, I have tried to explore Hindi food expressions' cultural aspects essential in making meaning. I have also tried to explain that, historically, how food and communication are related to each other. Without knowing the cultural message, it isn't easy to receive the meaning of an expression in totality. I believe this study will be useful for Hindi foreign language education.
Uma análise da reprovação e da evasão no ensino médio catarinense usando microdados administrativos
Authors: Resende Max Cardoso de , Petterini Francis Carlo
Published: January 2023

A partir de um inexplorado banco de microdados longitudinais de alunos do ensino médio da rede pública catarinense, o artigo analisa três pontos pouco abordados na literatura sobre a reprovação e a evasão no Brasil. O primeiro é que em dados administrativos a evasão é parcialmente observada por meio do atrito, e discute-se como contornar isso com uma tabulação sistemática da informação. Segundo, no caso catarinense, é possível observar a renda familiar, o que não acontece no Censo Escolar, do Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira (Inep); então, essa pesquisa pode ser a primeira a modelar evasão e reprovação com dados administrativos, se controlando por essa covariável. Terceiro, faz-se uma abordagem econométrica, assumindo-se que fatores não observáveis podem afetar concomitantemente a reprovação e a evasão. Assim, estima-se que o efeito da derradeira reprovação na probabilidade de evasão, tendo-se o controle das características do aluno e da escola, estaria próximo de 35 pontos percentuais (p.p.). No entanto, esse efeito seria mais perto de 20 p.p., para estudantes que não estão em distorção idade-série, e poderia chegar a 45 p.p., para alunos que já reprovaram alguma vez antes.
Efecto de la interrupción del secado mecánico en la calidad física y sensorial del café
Authors: Pabón Jenny , Osorio Valentina
Published: January 2023

El secado es una etapa clave para la conservación de la calidad del café durante el almacenamiento y la trilla, es así como prácticas inadecuadas pueden tener impactos negativos tanto en la apariencia del grano como en la generación de defectos sensoriales. El presente trabajo evaluó el efecto de la interrupción del secado mecánico bajo un diseño factorial 2x4+1, con dos tiempos de secado inicial (6 y 12 horas), cuatro tiempos de interrupción (12, 24, 36 y 48 horas) y un testigo con secado mecánico sin interrupción. Para los tratamientos con interrupción se determinó el contenido de humedad intermedia del café pergamino. Se observó que en promedio cuando se aplicó un tiempo de secado de 12 horas se alcanza a disminuir el contenido de humedad a valores de 42,29%, con diferencias de 4,97% y 9,90% con los tratamientos de secado de 6 horas y humedad inicial del café lavado, respectivamente. Para la variable almendra sana se obtuvo un valor promedio de 76,76% y no hubo diferencias entre los tratamientos. En cuanto a la proporción de muestras con defecto sensorial, independiente del tiempo de secado inicial, después de 36 horas de interrupción se incrementa la proporción de defectos sensoriales. El análisis de varianza mostró efecto sobre las variables de calidad sensorial a favor del testigo que no presentó defectos y tuvo puntaje promedio de 81,15. El defecto predominante fue terroso y, según prueba de Dunnett, los tratamientos de menor tiempo de secado inicial y mayor interrupción son diferentes al testigo.
Target Selection and Validation of DESI Luminous Red Galaxies
Authors: Zhou Rongpu , Dey Biprateep , Newman Jeffrey A. , Eisenstein Daniel J. , Dawson K. , Bailey S. , Berti A. , Guy J. , Lan Ting-Wen , Zou H. , Aguilar J. , Ahlen S. , Alam Shadab , Brooks D. , de la Macorra A. , Dey A. , Dhungana G. , Fanning K. , Font-Ribera A. , Gontcho S. Gontcho A. , Honscheid K. , Ishak Mustapha , Kisner T. , Kovács A. , Kremin A. , Landriau M. , Levi Michael E. , Magneville C. , Manera Marc , Martini P. , Meisner Aaron M. , Miquel R. , Moustakas J. , Myers Adam D. , Nie Jundan , Palanque-Delabrouille N. , Percival W. J. , Poppett C. , Prada F. , Raichoor A. , Ross A. J. , Schlafly E. , Schlegel D. , Schubnell M. , Tarlé Gregory , Weaver B. A. , Wechsler R. H. , Yéche Christophe , Zhou Zhimin
Published: January 2023

The Dark Energy Spectroscopic Instrument (DESI) is carrying out a five-year survey that aims to measure the redshifts of tens of millions of galaxies and quasars, including 8 million luminous red galaxies (LRGs) in the redshift range 0.4 < z ≲ 1.0. Here we present the selection of the DESI LRG sample and assess its spectroscopic performance using data from Survey Validation (SV) and the first two months of the Main Survey. The DESI LRG sample, selected using g, r, z, and W1 photometry from the DESI Legacy Imaging Surveys, is highly robust against imaging systematics. The sample has a target density of 605 deg−2 and a comoving number density of 5 × 10−4
h
3 Mpc−3 in 0.4 < z < 0.8; this is a significantly higher density than previous LRG surveys (such as SDSS, BOSS, and eBOSS) while also extending to z ∼ 1. After applying a bright star veto mask developed for the sample, 98.9% of the observed LRG targets yield confident redshifts (with a catastrophic failure rate of 0.2% in the confident redshifts), and only 0.5% of the LRG targets are stellar contamination. The LRG redshift efficiency varies with source brightness and effective exposure time, and we present a simple model that accurately characterizes this dependence. In the appendices, we describe the extended LRG samples observed during SV.
The Giant Accreting Protoplanet Survey (GAPlanetS): Optimization Techniques for Robust Detections of Protoplanets
Authors: Adams Redai Jéa I. , Follette Katherine B. , Wang 王 Jason 劲飞 , Leonard Clare , Balmer William , Close Laird M. , Dacus Beck , Males Jared R. , Morzinski Katie M. , Palmo Joseph , Pueyo Laurent , Spiro Elijah , Treiber Helena , Ward-Duong Kimberly , Watson Alex
Published: January 2023

High-contrast imaging has afforded astronomers the opportunity to study light directly emitted by adolescent (tens of megayears) and “proto” (<10 Myr) planets still undergoing formation. Direct detection of these planets is enabled by empirical point-spread function (PSF) modeling and removal algorithms. The computational intensity of such algorithms, as well as their multiplicity of tunable input parameters, has led to the prevalence of ad hoc optimization approaches to high-contrast imaging results. In this work, we present a new, systematic approach to optimization vetted using data of the high-contrast stellar companion HD 142527 B from the Magellan Adaptive Optics Giant Accreting Protoplanet Survey (GAPlanetS). More specifically, we present a grid search technique designed to explore three influential parameters of the PSF subtraction algorithm pyKLIP: annuli, movement, and KL modes. We consider multiple metrics for postprocessed image quality in order to optimally recover at Hα (656 nm) synthetic planets injected into contemporaneous continuum (643 nm) images. These metrics include peak (single-pixel) signal-to-noise ratio (S/N), average (multipixel average) S/N, 5σ contrast, and false-positive fraction. We apply continuum-optimized KLIP reduction parameters to six Hα direct detections of the low-mass stellar companion HD 142527 B and recover the companion at a range of separations. Relative to a single-informed, nonoptimized set of KLIP parameters applied to all data sets uniformly, our multimetric grid search optimization led to improvements in companion S/N of up to 1.2σ, with an average improvement of 0.6σ. Since many direct imaging detections lie close to the canonical 5σ threshold, even such modest improvements may result in higher yields in future imaging surveys.
MAVEN Observations of Whistler-mode Waves Within the Magnetic Dips in the Martian Ionopause/Ionosphere
Authors: Wang Jing , Yu Jiang , Chen Zuzheng , Xu Xiaojun , Li Kun , Cui Jun , Cao Jinbin
Published: January 2023

Whistler-mode waves are natural and common electromagnetic emissions observed both surrounding planets and their moons with and without intrinsic magnetic field. Numerous observations have shown that the magnetic dip is a favorable region for the whistler-mode wave generation in the Earth’s magnetosphere. However, up to now, seldom observations of these waves have been reported in such regions at Mars. Based on the measurements from Mars Atmosphere and Volatile EvolutioN mission, quasi-parallel propagating whistler-mode waves are observed within magnetic dip structures in the Martian ionopause and ionosphere. Correspondingly, significant electron beams in the antiparallel direction are observed, and a linear instability analysis shows that f
pe/f
ce becomes extremely large (∼1500) inside the magnetic dip. Thus, the electron minimum resonant energy of whistler-mode waves decreases to several eV, which increases the number density of resonant beam electrons. Such beam electron distribution results in the necessary free energy for the whistler-mode wave growth. Our study indicates magnetic dips may be favorable regions for the whistler-mode wave excitation even in the Martian ionosphere, which has an extremely high f
pe/f
ce but does not have a global intrinsic magnetic field.
Pegasus IV: Discovery and Spectroscopic Confirmation of an Ultra-faint Dwarf Galaxy in the Constellation Pegasus
Authors: Cerny W. , Simon J. D. , Li T. S. , Drlica-Wagner A. , Pace A. B. , Martínez-Vázquez C. E. , Riley A. H. , Mutlu-Pakdil B. , Mau S. , Ferguson P. S. , Erkal D. , Munoz R. R. , Bom C. R. , Carlin J. L. , Carollo D. , Choi Y. , Ji A. P. , Manwadkar V. , Martínez-Delgado D. , Miller A. E. , Noël N. E. D. , Sakowska J. D. , Sand D. J. , Stringfellow G. S. , Tollerud E. J. , Vivas A. K. , Carballo-Bello J. A. , Hernandez-Lang D. , James D. J. , Nidever D. L. , Castellon J. L. Nilo , Olsen K. A. G. , Zenteno A. ,   DELVE Collaboration
Published: January 2023

We report the discovery of Pegasus IV, an ultra-faint dwarf galaxy found in archival data from the Dark Energy Camera processed by the DECam Local Volume Exploration Survey. Pegasus IV is a compact, ultra-faint stellar system (

r

1

/

2

=

41

−
6

+
8

pc; M

V
= −4.25 ± 0.2 mag) located at a heliocentric distance of

90

−
6

+
4

kpc

. Based on spectra of seven nonvariable member stars observed with Magellan/IMACS, we confidently resolve Pegasus IV’s velocity dispersion, measuring

σ

v

=

3.3

−
1.1

+
1.7

km s−1 (after excluding three velocity outliers); this implies a mass-to-light ratio of

M

1

/

2

/

L

V
,
1

/

2

=

167

−
99

+
224

M

⊙

/

L

⊙

for the system. From the five stars with the highest signal-to-noise spectra, we also measure a systemic metallicity of [Fe/H] =

−

2.63

−
0.30

+
0.26

dex, making Pegasus IV one of the most metal-poor ultra-faint dwarfs. We tentatively resolve a nonzero metallicity dispersion for the system. These measurements provide strong evidence that Pegasus IV is a dark-matter-dominated dwarf galaxy, rather than a star cluster. We measure Pegasus IV’s proper motion using data from Gaia Early Data Release 3, finding (μ

α*, μ

δ
) = (0.33 ± 0.07, −0.21 ± 0.08) mas yr−1. When combined with our measured systemic velocity, this proper motion suggests that Pegasus IV is on an elliptical, retrograde orbit, and is currently near its orbital apocenter. Lastly, we identify three potential RR Lyrae variable stars within Pegasus IV, including one candidate member located more than 10 half-light radii away from the system’s centroid. The discovery of yet another ultra-faint dwarf galaxy strongly suggests that the census of Milky Way satellites is still incomplete, even within 100 kpc.
X-Ray Properties of NGC 253's Starburst-driven Outflow
Authors: Lopez Sebastian , Lopez Laura A. , Nguyen Dustin D. , Thompson Todd A. , Mathur Smita , Bolatto Alberto D. , Vulic Neven , Sardone Amy
Published: January 2023

We analyze image and spectral data from ≈365 ks of observations from the Chandra X-ray Observatory of the nearby, edge-on starburst galaxy NGC 253 to constrain properties of the hot phase of the outflow. We focus our analysis on the −1.1 to +0.63 kpc region of the outflow and define several regions for spectral extraction where we determine best-fit temperatures and metal abundances. We find that the temperatures and electron densities peak in the central ∼250 pc region of the outflow and decrease with distance. These temperature and density profiles are in disagreement with an adiabatic spherically expanding starburst wind model and suggest the presence of additional physics such as mass loading and nonspherical outflow geometry. Our derived temperatures and densities yield cooling times in the nuclear region of a few million years, which may imply that the hot gas can undergo bulk radiative cooling as it escapes along the minor axis. Our metal abundances of O, Ne, Mg, Si, S, and Fe all peak in the central region and decrease with distance along the outflow, with the exception of Ne, which maintains a flat distribution. The metal abundances indicate significant dilution outside of the starburst region. We also find estimates of the mass outflow rates, which are 2.8 M
⊙ yr−1 in the northern outflow and 3.2 M
⊙ yr−1 in the southern outflow. Additionally, we detect emission from charge exchange and find it makes a significant contribution (20%–42%) to the total broadband (0.5–7 keV) X-ray emission in the central and southern regions of the outflow.
Effects of the Central Mass Concentration on Bar Formation in Disk Galaxies
Authors: Jang Dajeong , Kim Woong-Tae
Published: January 2023

While bars are common in disk galaxies, their formation conditions are not well understood. We use N-body simulations to study the formation and evolution of a bar in isolated galaxies consisting of a stellar disk, a classical bulge, and a dark halo. We consider 24 galaxy models that are similar to the Milky Way but differ in the mass and compactness of the classical bulge and halo concentration. We find that the bar formation requires

(

Q

T
,
min

/

1.2
)

2

+

(
CMC

/

0.05
)

2

≲
1

, where

Q

T
,
min

and CMC refer to the minimum value of the Toomre stability parameter and the central mass concentration, respectively. Bars tend to be stronger and longer, and to rotate more slowly, in galaxies with a less massive and less compact bulge and halo. All bars formed in our models correspond to slow bars. A model with the bulge mass of ∼10%–20% of the disk under a concentrated halo produces a bar similar to that of the Milky Way. We discuss our findings in relation to other bar formation criteria suggested by previous studies.
Digging into the Galactic Bulge: Stellar Population and Structure of the Poorly Studied Cluster NGC 6316
Authors: Deras Dan , Cadelano Mario , Ferraro Francesco R. , Lanzoni Barbara , Pallanca Cristina
Published: January 2023

High-resolution Hubble Space Telescope optical observations have been used to analyze the stellar population and the structure of the poorly investigated bulge globular cluster NGC 6316. We constructed the first high-resolution reddening map in the cluster direction, which allowed us to correct the evolutionary sequences in the color–magnitude diagram (CMD) for the effects of differential reddening. A comparison between the CMDs of NGC 6316 and 47 Tucanae revealed strikingly similar stellar populations, with the two systems basically sharing the same turnoff, subgiant branch, and horizontal branch morphologies, indicating comparable ages. The red giant branch in NGC 6316 appears slightly bluer than in 47 Tucanae, suggesting a lower metal content. This has been confirmed by the isochrone fitting of the observed CMD, which provided us with updated values of the cluster age, distance, average color excess, and metallicity. We estimated an absolute age of 13.1 ± 0.5 Gyr, consistent with the age of 47 Tucanae, an average color excess E(B − V) = 0.64 ± 0.01, and a true distance modulus (m − M)0 = 15.27 ± 0.03 that sets the cluster distance at 11.3 kpc from the Sun. In addition, the photometric estimate of the cluster metallicity suggests [Fe/H] ≈ −0.9, which is ∼0.2 dex smaller than that of 47 Tucanae. We also determined the gravitational center and the density profile of the system from resolved stars. The latter is well reproduced by a King model. Our results confirm that NGC 6316 is another extremely old relic of the assembly history of the Galaxy.
A Machine-learning Approach to Predict Missing Flux Densities in Multiband Galaxy Surveys
Authors: Chartab Nima , Mobasher Bahram , Cooray Asantha R. , Hemmati Shoubaneh , Sattari Zahra , Ferguson Henry C. , Sanders David B. , Weaver John R. , Stern Daniel K. , McCracken Henry J. , Masters Daniel C. , Toft Sune , Capak Peter L. , Davidzon Iary , Dickinson Mark E. , Rhodes Jason , Moneti Andrea , Ilbert Olivier , Zalesky Lukas , McPartland Conor J. R. , Szapudi István , Koekemoer Anton M. , Teplitz Harry I. , Giavalisco Mauro
Published: January 2023

We present a new method based on information theory to find the optimal number of bands required to measure the physical properties of galaxies with desired accuracy. As a proof of concept, using the recently updated COSMOS catalog (COSMOS2020), we identify the most relevant wave bands for measuring the physical properties of galaxies in a Hawaii Two-0- (H20) and UVISTA-like survey for a sample of i < 25 AB mag galaxies. We find that with the available i-band fluxes, r, u, IRAC/ch2, and z bands provide most of the information regarding the redshift with importance decreasing from r band to z band. We also find that for the same sample, IRAC/ch2, Y, r, and u bands are the most relevant bands in stellar-mass measurements with decreasing order of importance. Investigating the intercorrelation between the bands, we train a model to predict UVISTA observations in near-IR from H20-like observations. We find that magnitudes in the YJH bands can be simulated/predicted with an accuracy of 1σ mag scatter ≲0.2 for galaxies brighter than 24 AB mag in near-IR bands. One should note that these conclusions depend on the selection criteria of the sample. For any new sample of galaxies with a different selection, these results should be remeasured. Our results suggest that in the presence of a limited number of bands, a machine-learning model trained over the population of observed galaxies with extensive spectral coverage outperforms template fitting. Such a machine-learning model maximally comprises the information acquired over available extensive surveys and breaks degeneracies in the parameter space of template fitting inevitable in the presence of a few bands.
Forward Modeling of Galaxy Populations for Cosmological Redshift Distribution Inference
Authors: Alsing Justin , Peiris Hiranya , Mortlock Daniel , Leja Joel , Leistedt Boris
Published: January 2023

We present a forward-modeling framework for estimating galaxy redshift distributions from photometric surveys. Our forward model is composed of: a detailed population model describing the intrinsic distribution of the physical characteristics of galaxies, encoding galaxy evolution physics; a stellar population synthesis model connecting the physical properties of galaxies to their photometry; a data model characterizing the observation and calibration processes for a given survey; and explicit treatment of selection cuts, both into the main analysis sample and for the subsequent sorting into tomographic redshift bins. This approach has the appeal that it does not rely on spectroscopic calibration data, provides explicit control over modeling assumptions and builds a direct bridge between photo-z inference and galaxy evolution physics. In addition to redshift distributions, forward modeling provides a framework for drawing robust inferences about the statistical properties of the galaxy population more generally. We demonstrate the utility of forward modeling by estimating the redshift distributions for the Galaxy And Mass Assembly (GAMA) survey and the Vimos VLT Deep Survey (VVDS), validating against their spectroscopic redshifts. Our baseline model is able to predict tomographic redshift distributions for GAMA and VVDS with respective biases of Δz ≲ 0.003 and Δz ≃ 0.01 on the mean redshift—comfortably accurate enough for Stage III cosmological surveys—without any hyperparameter tuning (i.e., prior to doing any fitting to those data). We anticipate that with additional hyperparameter fitting and modeling improvements, forward modeling will provide a path to accurate redshift distribution inference for Stage IV surveys.
Searching for Molecular Jets from High-mass Protostars
Authors: Rodríguez Tatiana M. , Hofner Peter , Edelman Isaac , Araya Esteban D. , Rosero Viviana
Published: January 2023

We report Very Large Array observations in the Q band toward 10 ionized jet candidates to search for SiO emission, a well-known shocked gas tracer. We detected 7 mm continuum counterparts toward 90% of the jet candidates. In most cases, the jet candidate is located toward the center of the 7 mm core, and the high masses (≈100 M
⊙) and densities (≈107 cm−3) of the cores suggest that the central objects are very young high-mass protostars. We detected SiO J = 1–0 emission associated with six target sources. In all cases, the morphology and spectrum of the emission is consistent with what is expected for molecular jets along an outflow axis, thus confirming the jet nature of 60% of our sample. Our data suggest a positive correlation between the SiO luminosity L
SiO, and both the bolometric luminosity L
Bol and the radio luminosity S

ν

d
2 of the driving sources.
The Dark Energy Camera Plane Survey 2 (DECaPS2): More Sky, Less Bias, and Better Uncertainties
Authors: Saydjari Andrew K. , Schlafly Edward F. , Lang Dustin , Meisner Aaron M. , Green Gregory M. , Zucker Catherine , Zelko Ioana , Speagle 沈 Joshua S. 佳士 , Daylan Tansu , Lee Albert , Valdes Francisco , Schlegel David , Finkbeiner Douglas P.
Published: January 2023

Deep optical and near-infrared imaging of the entire Galactic plane is essential for understanding our Galaxy’s stars, gas, and dust. The second data release of the Dark Energy Camera (DECam) Plane Survey extends the five-band optical and near-infrared survey of the southern Galactic plane to cover 6.5% of the sky, ∣b∣ ≤ 10°, and 6° > ℓ > −124°, complementary to coverage by Pan-STARRS1. Typical single-exposure effective depths, including crowding effects and other complications, are 23.5, 22.6, 22.1, 21.6, and 20.8 mag in g, r, i, z, and Y bands, respectively, with around 1″ seeing. The survey comprises 3.32 billion objects built from 34 billion detections in 21,400 exposures, totaling 260 hr open shutter time on the DECam at Cerro Tololo. The data reduction pipeline features several improvements, including the addition of synthetic source injection tests to validate photometric solutions across the entire survey footprint. A convenient functional form for the detection bias in the faint limit was derived and leveraged to characterize the photometric pipeline performance. A new postprocessing technique was applied to every detection to debias and improve uncertainty estimates of the flux in the presence of structured backgrounds, specifically targeting nebulosity. The images and source catalogs are publicly available at http://decaps.skymaps.info/.
On the taxonomic validity of Boiga whitakeri Ganesh et al., 2021 with new insights on Boiga dightoni (Boulenger, 1894) (Reptilia: Squamata: Colubridae)
Authors: Narayanan Surya , Das Sandeep , Anvar Y. Muhammed , Tillack Frank , Mohapatra Pratyush P. , Gower David J. , Rajkumar K. P. , Deepak V.
Published: January 2023

Colour polymorphism has been previously reported in several colubrid snakes including Boiga spp. In this paper, we report colour variations within the poorly known southern Indian Boiga dightoni, provide the first molecular data for this species, from two localities (including the type locality) and compare them with data from other congeners. Additionally, we provide detailed dentition and hemipenis descriptions for B. dightoni. Molecular data for B. dightoni show very little difference (0.2–0.4% 16S; 0.9–1.2% cyt b) to the recently described Boiga whitakeri, also from southern India. We have re-examined and present new information on the pholidosis of the type specimens of B. whitakeri and reconsider its taxonomic status. On the basis of molecular data and overlapping morphological characteristics, we argue that Boiga whitakeri and Boiga dightoni are conspecific, and place B. whitakeri under the subjective synonymy of the latter. Furthermore, we show that colour polymorphism in B. dightoni is a gender-independent character and that both colour morphs are found in high as well as low elevations and partly in sympatry. A revised key to the Boiga ceylonensis complex is provided.
Taxonomic study of the genus Kuvera Distant, 1906 (Hemiptera, Fulgoromorpha, Cixiidae) with descriptions of two new species from China
Authors: Zhi Yan , Yang Lin , Chen Xiang-Sheng
Published: January 2023

Two new species of genusKuveraDistant, 1906,Kuvera campylotropaZhi & Chen,sp. nov.andK. elongataZhi & Chen,sp. nov., and a new Chinese record,K. basarukiniEmeljanov, 1998, are described and illustrated from China. The females of two other species ofKuvera,K. laticeps(Metcalf, 1936) andK. ussuriensis(Vilbaste, 1968), are described for the first time. An updated identification key to Chinese species ofKuverais given.
The prognostic value of comprehensive geriatric assessment on the management of older patients with small cell lung cancer
Authors: Chun You Jin , Kim Kwang Joon , Lee Ji Yeon , Choi Ji Won , Kim Tae Hee , Kim Hye Ryun , Cho Byoung Chul , Hong Min Hee , Kim Chang Oh
Published: January 2023

Background/Aims: The prognostic value of a comprehensive geriatric assessment (CGA) for the management of older small cell lung cancer (SCLC) patients remains to be established.Methods: A retrospective cohort enrolled 21 SCLC patients over 65 years from March 2018 to 2019 at the Yonsei Cancer Center. The CGA included the following instruments: frailty, body mass index, sarcopenia (circumference of arm and calf, Timed Up and Go test, grip strength), comorbidity, polypharmacy, activities of daily living (ADL), Instrumental ADL, nutrition, depression, and cognitive function. The correlations of oncological and geriatric variables with overall survival (OS) were determined. The log-rank test with Cox model and Kaplan-Meier method were used for the analysis.Results: The median age was 75 years (range, 67 to 85). All patients had the Eastern Cooperative Oncology Group performance status 0–2. The median survival was 9.93 months (range, 1.53 to 36.30). Among CGA parameters, ADL and nutritional status had significant differences in OS in univariate analysis. In multivariate analysis, only nutritional status was independently associated with survival (hazard ratio, 0.17; 95% confidence interval, 0.05 to 0.57). Median OS for low nutritional status was 5.63 months and the normal nutrition group was 15.5 months (p = 0.004).Conclusions: Pre-treatment nutritional status measured by CGA appears to be a predictor of OS in older SCLC patients. However, for further generalization of the implication of CGA in SCLC, a larger scale study with prospective design is strongly needed.
Justice, Equity, and Inclusion in a School of Nursing: A Quality Improvement Program
Authors: Gona Clara M. , Pusey-Reid Eleonor , Reidy Patricia A. , Truong Kimberly A. , Tagliareni M. Elaine
Published: January 2023

Background:

Despite the increased racial and ethnic diversity in the general population of the United States, the nursing workforce remains mostly White. Schools of nursing (SON) have increased recruitment and enrollment; however, students who represent racial and ethnic minoritized groups experience microaggressions, injustice, and social exclusion. This quality improvement program sought to equip faculty with skills to create a just and inclusive SON. The program was guided by the Institute for Healthcare's Model for Improvement.

Method:

Five workshops were developed and implemented during two semesters. Workshops were led and moderated by a diversity, equity, and inclusion consultant.

Results:

After the workshops, participants committed to create an inclusive environment, intervene when microaggressions occurred, implement curricular changes, and recognize themselves as members of a privileged group. Postworkshop discussions and reflections led to new initiatives in the SON.

Conclusion:

This faculty development program demonstrates programs to enhance justice, equity, and inclusion can be implemented successfully within SON.

[
J Nurs Educ
. 2023;62(1):20–27.]
Final-Year Nursing Students' Experiences During the COVID-19 Pandemic: A Scoping Review
Authors: El Hussein Mohamed Toufic , Dosani Aliyah , Al-Wadeiah Nada
Published: January 2023

Background:

The transitional experience from final-year nursing students (FYNS) to newly graduated RNs (NGRN) challenges individuals' professional and personal identities. Multiple studies have documented the experiences of FYNS graduating in the pandemic, but no studies have synthesized the findings.

Method:

This scoping review examined the barriers and facilitators FYNS experience as they transitioned to become NGRN during the coronavirus disease 2019 (COVID-19) pandemic. Databases were searched for relevant articles, and articles published in peer-reviewed journals between 2019 and 2021 that focused on the support of FYNS in clinical settings in North America, Europe, and Australia were included.

Results:

Three themes were identified: emotional turmoil and coping, clinical competence and readiness for practice, and teaching strategies.

Conclusion:

This review revealed important insight on how the pandemic affected FYNS' transition to practice and identified gaps in the literature for future research.

[
J Nurs Educ
. 2023;62(1):6–11.]
Dynamics of a predator-prey model with fear effects and gestation delays
Authors: Wang Yaping , Shao Yuanfu , Chai Chuanfu
Published: January 2023

Recent studies have shown that, in addition to direct predation, fear of predators alters the physiological behavior of prey. Based on this fact, this paper investigates a three-species food chain based on ratio-dependent and Beddington-DeAngelis type functional responses, which incorporates fear effects and two gestation delays. The positivity, boundedness and existence of equilibrium points of the system are investigated, and the local stability behavior of the equilibrium points and the occurrence of Hopf-bifurcation when the time lag parameters exceed the critical values are studied by analyzing the corresponding characteristic equations. The main results show that Hopf-bifurcation occurs when the time delay parameters attain the thresholds. Finally, numerical simulations are performed to verify our main results.
Practical teaching method innovation decisions related to labor and reading at agricultural colleges based on entropy-fuzzy AHP combination weights
Authors: Yin Shi , Guo Fengyu , Yu Yuanyuan , Li Yibo , Ullah Kifayat
Published: January 2023

Due to the rapid development of the economy, science, and technology, we have noticed a trend where less and less attention is being paid to the modernization and development of labor and reading concerning agricultural teaching methods. Using the entropy weight method and the analytic hierarchy process, this paper empirically evaluates the practical aspects of interdisciplinary farming at agricultural colleges. In addition, it analyzes problems with current practical teaching methods from the perspectives of curriculum materials, practical education, educational platforms, and teachers. We also put forward corresponding ideas and suggestions for practical teaching methods related to interdisciplinary farming. The results show the following: ⅰ) A student's sense of responsibility to develop agriculture should be cultivated by integrating the cultural elements of agriculture with science curricula. ⅱ) Faculties with knowledge of interdisciplinary practices should be set up to improve students' abilities regarding practical activities. ⅲ) A practical teaching platform should be established to provide conditions for interdisciplinary integration. ⅳ) The previous conclusion requires schools to cultivate high-level teachers to maximize their leading role; only in this way can the process of agricultural education be comprehensively promoted. In this paper, by studying practical farming teaching methods at agricultural colleges and universities, we found that farming culture can be enhanced by educational culture. The cultivation of agricultural talents in the new era can be aided by helping students understand and appreciate agriculture, and by disseminating farming culture, agricultural talent can be cultivated among these students. Furthermore, this study focuses on cultivating excellent talent in terms of technical agriculture and rural management, thus combining theory and practice, which will promote the spirit of labor among students, as well as professional quality. This will ensure the constant innovation of agricultural and nonagricultural professional services for agriculture, rural areas, and farmers.