bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hyperthermic Intra Peritoneal Chemotherapy (HIPEC)
Authors: Sonia P Abraham  , Malini Rachel C.V  , Daisy Sheeba  
Published: August 2022

Abdominal cancer in advanced stages known to be less responsive to any treatment modalities has gained positive results with HIPEC procedure done after a complete cyto-reductive surgery. HIPEC causes selective cell killing of the malignant cell, enhances the drug potency and increases the tissue penetration by the chemo therapeutic agent. It also causes regional dose intensification. Proved to be a successfully emerging option it is the need of the hour for the perioperative nurse to be updated with the latest knowledge, skill, and trends regarding HIPEC.
De inition: HIPEC is a highly concentrated, heated chemotherapy treatment that is delivered directly into the abdomen during surgery.
The Correlation Between Students Achievement In Vocabulary And Speaking Ability at Grade 8 Junior High School Students
Authors: Zulfiana Rifda 
Published: August 2022

ABSTRACT
This research aimed to find out the correlation between students’ vocabulary mastery and speaking ability at grade 8 of SMP Negeri. This research was quantitative research which used correlational technique design. The sample of the research was 30 students of grade eight selected by clustering sampling. The instruments used in the research were vocabulary test and speaking test. Vocabulary test consisted of 50 questions of multiple choices, and speaking test in the form of role play. The research data were in the form of interpretation of students’ vocabulary and speaking test results, and their correlation. Based on data analysis, it was found that students’ vocabulary mastery and speaking ability were fair. They were proved by the mean score 65 for vocabulary mastery and 68 for speaking ability. Moreover, there was strong correlation between students’ vocabulary mastery and speaking ability. It was shown by the rvalue = 0,703 .

Keywords:Students’ Achievement, Vocabulary, Speaking
Molecular Chemistry for Dark Matter. II. Recombination, Molecule Formation, and Halo Mass Function in Atomic Dark Matter
Authors: Gurian James , Jeong Donghui , Ryan Michael , Shandera Sarah 
Published: August 2022

Abstract
Dissipative dark matter predicts rich observable phenomena that can be tested with future large-scale structure surveys. As a specific example, we study atomic dark matter, consisting of a heavy particle and a light particle charged under a dark electromagnetism. In particular, we calculate the cosmological evolution of atomic dark matter focusing on dark recombination and dark molecule formation. We have obtained the relevant interaction rate coefficients by rescaling the rates for normal hydrogen, and evolved the abundances for ionized, atomic, and molecular states using a modified version of Recfast++ (which we have released publicly at

a

a

https://github.com/jamesgurian/RecfastJulia

). We also provide an analytical approximation for the final abundances. We then calculate the effects of atomic dark matter on the linear power spectrum, which enter through a dark photon diffusion and dark acoustic oscillations. At formation time, the atomic dark matter model suppresses halo abundances on scales smaller than the diffusion scale, just as warm dark matter models suppress the abundance below the free-streaming scale. The subsequent evolution with radiative cooling, however, will alter the halo mass function further.
Molecular Chemistry for Dark Matter. III. DarkKROME
Authors: Ryan Michael , Shandera Sarah , Gurian James , Jeong Donghui 
Published: August 2022

Abstract
Dark matter that is dissipative may cool sufficiently to form compact objects, including black holes. Determining the abundance and mass spectrum of those objects requires an accurate model of the chemistry relevant for the cooling of the dark matter gas. Here we introduce a chemistry tool for dark matter, DarkKROME, an extension of the KROME software package. DarkKROME is designed to include all atomic and molecular processes relevant for dark matter with two unequal-mass fundamental fermions, interacting via a massless-photon-mediated U(1) force. We use DarkKROME to perform one-zone collapse simulations and study the evolution of temperature–density phase diagrams for various dark sector parameters. DarkKROME is publicly available at https://bitbucket.org/mtryan83/darkkrome.
Molecular Chemistry for Dark Matter
Authors: Ryan Michael , Gurian James , Shandera Sarah , Jeong Donghui 
Published: August 2022

Abstract
Molecular cooling is essential for studying the formation of substructure of dissipative dark-matter halos that may host compact objects such as black holes. Here, we analyze the reaction rates relevant for the formation, dissociation, and transition of hydrogenic molecules while allowing for different values of the physical parameters: the coupling constant, the proton mass, and the electron mass. For all cases, we rescale the reaction rates for the standard molecular hydrogen, so our results are valid as long as the dark matter is weakly coupled and one of the fermions is much heavier than the other. These results will allow a robust numerical treatment of cosmic structure, in particular for minihalos for which molecular cooling is important, in a dissipative dark-matter scenario.
Spatially Resolved Observations of Betelgeuse at λ7 mm and λ1.3 cm Just prior to the Great Dimming
Authors: Matthews L. D. , Dupree A. K. 
Published: August 2022

Abstract
We present spatially resolved observations of Betelgeuse (α Orionis) obtained with the Karl G. Jansky Very Large Array at λ ∼ 7 mm (44 GHz) and λ ∼ 1.3 cm (22 GHz) on 2019 August 2, just prior to the onset of the historical optical dimming that occurred between late 2019 and early 2020. Our measurements suggest recent changes in the temperature and density structure of the atmosphere between radii r ∼ 2R⋆ and 3R⋆. At λ7 mm the star is ∼20% dimmer than in previously published observing epochs between 1996 and 2004. We measure a mean gas temperature of T

B
= 2270 ± 260 K at r ∼ 2.1R⋆, where R
⋆ is the canonical photospheric radius. This is ∼2σ lower than previously reported temperatures at comparable radii and >1200 K lower than predicted by previous semiempirical models of the atmosphere. The measured brightness temperature at r ∼ 2.6R
⋆ (T

B
= 2580 ± 260 K) is also cooler than expected based on trends in past measurements. The stellar brightness profile in our current measurements appears relatively smooth and symmetric, with no obvious signatures of giant convective cells or other surface features. However, the azimuthally averaged brightness profile is found to be more complex than a uniform elliptical disk. Our observations were obtained approximately 6 weeks before spectroscopic measurements in the ultraviolet revealed evidence of increases in the chromospheric electron density in the southern hemisphere of Betelgeuse, coupled with a large-scale outflow. We discuss possible scenarios linking these events with the observed radio properties of the star, including the passage of a strong shock wave.
Swift J0503.7−2819: a Short-period Asynchronous Polar or Stream-fed Intermediate Polar
Authors: Halpern J. P. 
Published: August 2022

Abstract
We analyze a 7.4 hr XMM-Newton light curve of the cataclysmic variable Swift J0503.7−2819, previously classified using optical periods as an intermediate polar (IP) with an orbital period of 0.0567 days. A photometric signal at 975 s, previously suggested to be the spin period, is not present in X-rays and is readily understood as a quasiperiodic oscillation. The X-ray light curve instead shows clear behavior of a highly asynchronous polar or stream-fed IP. It can be described by either of two scenarios: one that switches between one-pole and two-pole accretion, and another in which accretion alternates fully between two poles. The spin periods in these two models are 0.0455 days and 0.0505 days, respectively. The spin frequency ω is thus either 24% faster or 12% faster than the orbital frequency Ω, and the corresponding beat period between spin and orbit is 0.231 days or 0.462 days. Brief absorption events seen in the light curve are spaced in a way that may favor the longer spin and beat periods. These periods are confirmed and refined using data from the Transiting Exoplanet Survey Satellite and the Asteroid Terrestrial-impact Last Alert System. The short beat cycle of Swift J0503.7−2819 makes it well-suited to resolving this common dilemma, which amounts to deciding whether the main signal in the power spectrum is ω or 2ω − Ω.
Third and Fourth Harmonics of Electromagnetic Emissions by a Weak Beam in a Solar Wind Plasma with Random Density Fluctuations
Authors: Krafft C. , Savoini P. 
Published: August 2022

Abstract
Electromagnetic emissions



3

and



4

at the third and fourth harmonics of the plasma frequency ω

p
were observed during the occurrence of type II and type III solar radio bursts. Two-dimensional particle-in-cell simulations are performed using a weak beam, high space and time resolutions, and a plasma with density fluctuations of a few percent, for parameters relevant to regions of type III bursts. For the first time, a detailed study of the different wave coalescence processes involved in the generation of



3

and



4

waves is presented and the impact of density fluctuations on the wave interaction mechanisms is demonstrated. Energy ratios between the second, third, and fourth harmonics



2

,



3

, and



4

are consistent with space observations. It is shown that, in both homogeneous and inhomogeneous plasmas, the dominant processes generating



3

(



4

) are the coalescence of



2

(



3

) with a Langmuir wave, in spite of the random density fluctuations modifying the waves’ resonance conditions by energy transport in the wavevector space and of the damping of Langmuir waves. The role of the backscattered (forward-propagating) Langmuir waves coming from the first (second) cascade of the electrostatic decay of beam-driven Langmuir waves is determinant in these processes. Understanding such wave coalescence mechanisms can provide indirect information on Langmuir and ion acoustic wave turbulence, the average level of density inhomogeneities, and suprathermal electron fluxes generated in solar wind regions where the harmonics manifest. Causes for the rarity of their observations are discussed.
Lyα Halos around [O iii]-selected Galaxies in HETDEX
Authors: Lujan Niemeyer Maja , Bowman William P. , Ciardullo Robin , Gronke Max , Komatsu Eiichiro , Fabricius Maximilian , Farrow Daniel J. , Finkelstein Steven L. , Gebhardt Karl , Gronwall Caryl , Hill Gary J. , Liu Chenxu , Cooper Erin Mentuch , Schneider Donald P. , Tuttle Sarah , Zeimann Gregory R. 
Published: August 2022

Abstract
We present extended Lyα emission out to 800 kpc of 1034 [O iii]-selected galaxies at redshifts 1.9 < z < 2.35 using the Hobby–Eberly Telescope Dark Energy Experiment. The locations and redshifts of the galaxies are taken from the 3D-HST survey. The median-stacked surface brightness profile of the Lyα emission of the [O iii]-selected galaxies agrees well with that of 968 bright Lyα-emitting galaxies (LAEs) at r > 40 kpc from the galaxy centers. The surface brightness in the inner parts (r < 10 kpc) around the [O iii]-selected galaxies, however, is 10 times fainter than that of the LAEs. Our results are consistent with the notion that photons dominating the outer regions of the Lyα halos are not produced in the central galaxies but originate outside of them.
New Developments and Future Vision of the Nomenclatural Database IPNI and the Taxonomic Database WCVP
Authors: Govaerts Rafaël , Hartley Helen , Krieger Jonathan , Wrankmore Emma 
Published: August 2022

IPNI (International Plant Names Index) has been providing nomenclatural data in one form or another for the past 138 years. Over the past decade, great progress has been made in improving the data and making it accessible via a new website. We will be showcasing the new features that have been added to the website, in particular the latest addition, name registration. While obligatory name registration has already been in place for fungi for a decade, we will be highlighting the opportunities it will bring to vascular plant sciences and our ever-increasing pace of data needs. Name registration will lighten the burden of finding newly published names and entering them into the IPNI database, allowing the IPNI curation team to focus on other aspects that have been left behind, like data standardisation. We will also be revisiting some of the longstanding features of IPNI like the LSID (Life Sciences Identifier), which has been used on the IPNI website since its launch in the year 2000, even though new projects still continue to invent their own identifiers. We will look into why this is and how these can improve the efficiency of curating databases that contain plant names, including WFO (World Flora Online).
For the past 34 years, the IPNI data have been the basis for the taxonomic database, WCVP (World Checklist of Vascular Plants), which records both synonymy and biogeography of vascular plants. Since 2014, both these datasets are curated as part of the same team resulting in greater coordination and data improvements on both sides. WCSP contains some 200,000 names that are not in IPNI and the process has now started to add them to IPNI. IPNI LSIDs have also been added to WCVP, increasing the opportunities of linking to other programmes, like WFO. A widespread utilisation of IPNI LSIDS would offer the opportunity to combine different global plant checklists, allowing users to choose under which taxonomy they want to see data and forego the requirement for one globally agreed taxonomy. However, IPNI and WCVP are still stand-alone legacy database systems, which limit their functionality in a continually changing landscape of user needs.
Although half of the WCVP data have been reviewed by experts, more integrated access is needed to speed up the review of the other half and continued direct access by these expert groups, including some of the TENs (Taxonomic Expert Networks) established for WFO. We will investigate the possible synergies that may be possible by combining the day-to-day grind of WCVP data management and expert input.
The lived experiences of mothers who have children with congenital abnormalities in the Gert Sibande district
Authors: Mazibuko Thandeka B. , Ramukumba Tendani , Ngwenya Nomusa 
Published: August 2022

Background: Mothers are regarded as primary care givers. The experience of having a child with congenital abnormality may have an impact on their psychological well-being. It was observed that the psychological well-being of mothers is often unattended by health professionals, including nurses and their families. Mothers make adjustments in their daily lives to ensure the child’s activities of daily living are attended. Therefore, this raises the need for the experience of mothers who have children with congenital abnormalities in the Gert Sibande district to be explored. Gert Sibande was chosen because it has been observed that several mothers who visit the clinic and outpatient department have children with congenital abnormalities.Objectives: The purpose of this study was to explore and describe the lived experiences of mothers who have children with congenital abnormalities.Method: A phenomenological study was conducted. Purposive sampling of 12 participants was done. The study used adjusted ecological model of health for guidance. Data gathering was done by self-report using unstructured face-to-face interviews until data saturation was reached.Results: Five themes emerged from the study, which include ‘being hurt emotionally’, ‘sense of guilt’, ‘acceptance’, ‘support from family’ and ‘community reaction to the congenital abnormality’. The findings show that mothers were affected by having children with congenital abnormalities.Conclusion: The study revealed that mothers of children with congenital abnormalities experienced devastation, denial, guilt and lack of acceptance of their child’s condition. The study indicates that mothers require support from health care professionals, family and the community.
Using signalling theory to assess the Government of Ghana’s risk communication during the COVID-19 pandemic
Authors: Owusu Ansah Martin , Afeafa Ry-Kottoh Lucy , Ameza-Xemalordzo Enya B. , Aawaar Godfred 
Published: August 2022

Background: The proliferation of information through social media and on other communication networks during the corona virus disease 2019 (COVID-19) era altered information transfer in many countries. The content of the messages from government officials, media coverage and alternative narratives, affected the level of compliance in adhering to the various health protocols amongst the public.Aim: This article aimed to determine the relationship between the message used, media coverage, alternative narratives, the public’s attitude towards staying at home and their commitment to stay at home during the COVID-19 pandemic campaign period in Ghana.Setting: A total of 352 respondents was sampled from the Kumasi metropolis.Methods: A survey sample strategy and a convenience sampling technique were used while structural equation modelling with Partial least square (PLS) version 3.0 was used for the analysis.Results: The study revealed that the nature of media coverage employed and the alternative narratives had a significant positive effect on the attitude of the respondents, whilst the content of the message had insignificant effects on the attitude of the public. Finally, the attitude of the people had a significant positive influence on their respective commitment to stay home.Conclusion: Developing countries in Africa need to fight pandemics using purely subsidised health officials or directorates rather than have government-appointed health experts and officials spearheading activities during a pandemic.Contribution: This study contributes to the clear understanding on some COVID-19 misinformation, the distinctive cost it poses to public health delivery in developing economies and the potential strategy of using neutral public health persons to curb the spread of the virus.
Experiences of neurofeedback therapists in treating attention-deficit hyperactivity disorder
Authors: Oliveira Jessica , Pellow Janice , Tsele-Tebakang Tebogo , Solomon Elizabeth M. 
Published: August 2022

Background: Neurofeedback is a neurostimulatory biofeedback behavioural therapy that regulates brain wave levels for optimal cognitive functioning. It has shown promising results for the treatment of attention-deficit hyperactivity disorder (ADHD).Aim: To explore and describe the experiences of neurofeedback therapists (NTs) using neurofeedback to treat children and adults with ADHD and their experience of its role and value in treating this condition.Setting: Interviews were conducted in participants’ private consultation rooms in Gauteng, South Africa.Methods: In this qualitative study using a descriptive phenomenological approach, six registered NTs with experience of treating ADHD were interviewed. Participants were asked: ‘Tell me about your experiences of neurofeedback with ADHD patients in your practice.’ Responses were audio-recorded, transcribed and underwent thematic analysis.Results: Participants experienced neurofeedback as an effective treatment for ADHD and other coexisting conditions, such as anxiety and insomnia. Participants felt that the neurofeedback process facilitates a beneficial therapeutic relationship and integrates well with other treatment methods. Challenges faced in practice included certain underlying comorbidities, home environment, poor patient compliance and NTs’ level of expertise, which impact treatment outcomes.Conclusion: Neurofeedback therapists expressed an overall positive perception of the value of neurofeedback to reduce ADHD symptom severity and improve quality of life, particularly when used as part of a multimodal approach. Participants identified a need for further education and awareness regarding the use of neurofeedback for ADHD.Contribution: This study has contributed to our understanding of the role of neurofeedback in treating ADHD in the South African setting.
In pursuit of increasing the application of tele-audiology in South Africa: COVID-19 puts on the alert for patient site facilitator training
Authors: Khoza-Shangase Katijah 
Published: August 2022

Background: The coronavirus disease 2019 (COVID-19) presented and highlighted new and unanticipated challenges to the provision of clinical services, raising an urgency for the application of different models of service delivery, including tele-audiology. In many tele-audiology encounters, a site facilitator is needed at the patient site to help with the hands-on aspects of procedures, and the implications of this requirement are significant for the resource-constrained African context.Objectives: The aim of this scoping review was to investigate published evidence on training provided to patient site facilitators (PSFs) for tele-audiology application to guide the South African audiology community in tele-audiology application initiatives.Method: Electronic bibliographic databases including Science Direct, PubMed, Scopus MEDLINE and ProQuest were searched to identify peer-reviewed publications, published in English, between 2017 and 2021 related to training of PSFs. The guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) were followed during the screening process as well as for illustrating the process.Results: Findings are discussed under four key themes: (1) type of tele-audiology and the implications thereof, (2) length of training and its implications, (3) diversity in the range of PSFs used and its implications for the training, and (4) heterogeneity in the training.Conclusion: The findings highlight important considerations for tele-audiology application within the African context, specifically decision-making around who can serve in the role of PSFs, as well as content and nature of training required, with implications for policy and regulations as well as human resource strategy. These findings are important for the COVID-19 pandemic era and beyond.