bluuebunny/crossref_metadata_2025 huggingface dataset:
Actual situation of financial revenue and expenditure at Dak Nong Provincial General Hospital in the period of 2018-2020
Authors:   Dak Nong Provincial General Hospital, Tran Thanh Binh , Nguyen Quynh Anh ,   Hanoi University of Public Health
Published: June 2022

The study was conducted to demonstrate the current situation of financial revenue and expenditure of a general hospital in Dak Nong province in the period of 2018 - 2020. Retrospective secondary data on personnel situation, professional performance results, financial revenue and expenditure of the hospital in the years 2018-2020 was collected through data collection forms that was pre-designed. Total hospital revenue decreased from 2018 to 2019 (reducing 8.38%) and in 2020 (reducing 12.47%), of which non-business revenues accounted for more than 80% of the total earnings annually. Revenue from health insurance took a high proportion of total non-business revenues, accounting for about 67.65-84.33%. Total hospital expenditure decreased from 2018 to 2019 (falling 10.61%) and in 2020 (falling 9.47%). Spending for professional expertise accounted for more than 50% of the total recurrent expenditure in the hospital, compared to expenses for individual payments with nearly 40%. The gap between the revenue and expenditure of the hospital decreased, with the total difference for the years 2018-2020 was reported as 27,476 million VND, 5,937 million VND, and 1,840 million VND, respectively. Between 2018 and 2020, both the hospital's total revenue and expenditure decreased. The impact of the COVID-19 pandemic caused many difficulties in effectively managing financial resources and ensuring the implementation of the financial autonomy roadmap. Keywords: hospital finance, financial revenue and expenditure, Dak Nong Provincial General Hospital.
Service quality of inpatient treatment services and its influenced factors at the Medical Examination Department, Go Vap district General Hospital, Ho Chi Minh City, 2021
Authors:   Go Vap district General Hospital, Bui Duy Hung , Nguyen Duc Thanh ,   Hanoi University of Public Health, Pham Thi Huyen Chang ,   Hanoi University of Public Health
Published: June 2022

Objective: The aim of study is assessing the healthcare service quality through patient’s perception and analyzing several effects on the quality of healthcare services. Methods: The descriptive cross-sectional study, using quantitactive and qualitative method was conducted at the Outpatient Department, Go Vap district General Hospital. 250 selected patients filled the original SERVPERF questionaire which consists 22 questions about 5 dimensions of service quality including Reliability, Responsiveness, Assurance, Empathy and Tangible. Results: The main finding showed that the mean score of all the domains is 3.94. The positive inuencies on healthcare service included: training and development of human resources, modern facilities and equipment, convenient one-stop medical examination and treatment process. The negative remarkable factor is the waiting in the drug dispensing process and the medical staff's communication is sometimes inappropriate. Conclusions: The hospital’s service quality has not been evaluated well, the department needs to calculate and determine the appropriate number of human resources, improve the drug taking stage as well as develop sanctions in handling violations to improve quality and serve the increasing needs of patients. Keywords: Healthcare service quality, outpatient department, SERVPERF.
The compliance with three-step food checking and food sample storage of preparing ready-to-eat food facility in Cao Lanh city, Dong Thap province in 2021
Authors:   Hanoi University of Public Health, Nguyen Thanh Ha , Nguyen Phuoc Tho ,   Medical Center Cao Lanh City, Dong Thap Province
Published: June 2022

Objective: To describe the status of compliance with three-step food checking, food sample storage of preparing ready-to-eat food facility. Methodology: The cross-sectional study was conducted from December 2020 to April 2021at all 45 facilities preparing ready-to-eat food portion in Cao Lanh district, Dong Thap province. The checklist for 3-step food checking and storing food samples was developed based on the regulations of the Ministry of Health. The results showed that the rate of facility preparing ready-to-eat food portions that fully complied with the three-step food checking is 44.4%; in which, step 3 was the highest rate (64.4%), following was step 1 (57.8%) and the lowest was step 2 (44.4%); the rate of full compliance with the regulation on food sample storage is 48.9%. The person who directly performing the inspection carefully reviewed the instructions and principles of the three-step food checking and food sample storage, the food facility owners regularly pay attention to inspect and supervise at their facilities. Key words: three-step food checking, food sample storage, preparing ready-to-eat food facility, food safety.
The validity of the mental health literacy assessment questionnaire on anxiety disorders and depression among students in Hanoi, Viet Nam
Authors:   Hanoi University of Public Health, Nguyen Thai Quynh Chi , Dang Hoang Minh ,   Vietnam National University, Hanoi, Le Thi Kim Anh ,   Hanoi University of Public Health
Published: June 2022

Objective: The study aimed at assessing the content validity and structure validity of the mental health literacy of anxiety disorders and depression questionnaire for undergraduate students. Methods: Implemented on December, 2018, the study involved students from the two Faculties of Sociology, University of Social Sciences and Humanity and Academy of Jounalism and Communication, Ha Noi. The depression vignette instrument was adapted from Jorm et.al., translated to Vietnamese and back translated to English. Content and structure validity were done through 02 focus group discussions with 20 respondents (10 from each university) and 02 indepth interviews were carried out with 2 mental health experts. Results: The depression vignette was revised shorter and exactly described depressive symptoms. The anxiety disorder one was newly developed. Some answering items were added. Along with that, some inappropriate answering items were also deleted, and 5 choices of the question were adjusted to 4 choices as well. Conclusion: The instrument included 43 questions, among which were 32 questions on the mental health literacy of anxiety disorder and depression was confirmed the validity and could be used in the future studies on undergraduate students. Keywords: Anxiety disorder, depression, mental health literacy
Covid-19' impacts on inpatient admission changes at National Hospital of Dermatology and Venereology, Hanoi, Vietnam
Authors:   National Hospital of Dermatology and Venereology, Pham Tien Dung , Le The Vinh ,   National Hospital of Dermatology and Venereology, Pham Quoc Thanh ,   Hanoi University of Public Health
Published: June 2022

Objective: Since the Coronavirus disease in 2019 (COVID-19) was announced as a worldwide pandemic, it has affected all aspects of life, including the economy, society, and the healthcare system. The impact of COVID-19 on co-morbidities is a concern however, there are few studies on dermatological patients. To determine COVID-19's impact on the number of hospital admissions and the changes of common diseases at the National Hospital of Dermatology and Venereology. Methods: A cohort study is conducted to collect all admission over four years from Feb 2018 to Jun 2021. The dataset including 10506 records was extracted from the hospital information system database. Descriptive statistical was used to analyse the admission differences between the four- year periods. Results: The number of patients markedly decreased by about 30% in 2020 and about 60% in 2021. The male/female ratio did not change significantly between before and after the pandemic. Benign neoplasia was the greatest change from 5.9% (2018) to 21% (2021). The allergic/reactive group decreased from 40% (2018) to 25% (2021). The infectious group also decreased from 20% (2018) to 10.8% (2021). The autoimmune group fluctuated at 9%-10%. The top 10 common diseases show that the first position was psoriasis then switched to Carcinoma in situ of skin during the Covid-19 time. Conclusion: The results of this study are significant in predicting the trend of dermatology patients' admission during a pandemic. The results assist health system leaders and public health authorities in adjusting policies and procedures to suit the pandemic situation that is still complicated. Keywords: COVID-19, SARS-CoV-2, hospital admission, hospitalizations, dermatology service
Status of water quality and some related factors at connected water supply stations in Cai Lay District, Tien Giang Province
Authors:   Cai Lay District Health Center, Tien Giang Province, Nguyen Van Loi , Tran Thi Tuyet Hanh ,   Hanoi University of Public Health
Published: June 2022

Objectives: To determine the percentage of water samples taken from connected water supply stations in Cai Lay District, Tien Giang Province that met the Vietnamese Standards (QCVN 02:2009/BYT) and to determine the factors related to the water quality. Methods: The study used test results of 81 water supply stations collected from the Tien Giang Center for Disease Control in 2020 and compared these with the QCVN 02:2009/BYT. Results: 86.4% of stations had water quality that met QCVN 02:2009/BYT, 90.1% and 96.3% of samples met physicochemical and microbiological criteria. State-owned enterprises had the highest sample rate (100%), followed by the cooperative model (92.3%), the private enterprise model (88.2%), and the cooperative group model (81.0%). Water supply stations with self-inspection of water quality, with correct collection of prescribed prices, with operating models of settling and filtering systems, had better water quality. Conclusions: Water supply facilities should perform self-inspection of water quality and need to have an annual plan for renovation and upgrading of the system, including the installation of settling and filtering systems. The water fee should be raised according to regulations to have reserve funds for investment in construction and repair of water supply systems when they are degraded. Authorities need to take measures to provide technical support, convert inappropriate models, and need to take strict measures against water suppliers that do not comply with regulations. Keywords: Water quality, connected water supply stations, Cai Lay District, Tien Giang
A Spectroscopic Survey of Infrared 1–4 μm Spectra in Regions of Prominent Solar Coronal Emission Lines of Fe XIII, Si X, and Si IX
Authors: Ali Aatiya , Paraschiv Alin Razvan , Reardon Kevin , Judge Philip
Published: June 2022

The infrared solar spectrum contains a wealth of physical data about the Sun and is being explored using modern detectors and technology with new ground-based solar telescopes. One such instrument will be the ground-based Cryogenic Near-IR Spectro-Polarimeter of the Daniel K. Inouye Solar Telescope (DKIST), which will be capable of sensitive imaging of the faint infrared solar coronal spectra with full Stokes I, Q, U, and V polarization states. Highly ionized magnetic dipole emission lines have been observed in galaxies and the solar corona. Quantifying the accuracy of spectral inversion procedures requires a precise spectroscopic calibration of observations. A careful interpretation of the spectra around prominent magnetic dipole lines is essential for deriving physical parameters and particularly for quantifying the off-limb solar coronal observations from DKIST. In this work, we aim to provide an analysis of the spectral regions around the infrared coronal emission lines of Fe xiii 1074.68 nm, Fe xiii 1079.79 nm, Si x 1430.10 nm, and Si ix 3934.34 nm, aligning with the goal of identifying solar photospheric and telluric lines that will help facilitate production of reliable inversions and data products from four sets of solar coronal observations. The outputs can be integrated in processing pipelines to produce level 2 science-ready data.
Linking Atmospheric Chemistry of the Hot Jupiter HD 209458b to Its Formation Location through Infrared Transmission and Emission Spectra
Authors: Dash Spandan , Majumdar Liton , Willacy Karen , Tsai Shang-Min , Turner Neal , Rimmer P. B. , Gudipati Murthy S. , Lyra Wladimir , Bhardwaj Anil
Published: June 2022

The elemental ratios of carbon, nitrogen, and oxygen in the atmospheres of hot Jupiters may hold clues to their formation locations in the protostellar disk. In this work, we adopt gas-phase chemical abundances of C, N, and O from several locations in a disk chemical kinetics model as sources for the envelope of the hot Jupiter HD 209458b and evolve the atmospheric composition of the planet using a 1D chemical kinetics model, treating both vertical mixing and photochemistry. We consider two atmospheric pressure-temperature profiles, one with and one without a thermal inversion. From each of the resulting 32 atmospheric composition profiles, we find that the molecules CH4, NH3, HCN, and C2H2 are more prominent in the atmospheres computed using a realistic noninverted P–T profile in comparison to a prior equilibrium chemistry based work, which used an analytical P–T profile. We also compute the synthetic transmission and emission spectra for these atmospheres and find that many spectral features vary with the location in the disk where the planetary envelope was accreted. By comparing with the species detected using the latest high-resolution ground-based observations, our model suggests that HD 209458b could have accreted most of its gas between the CO2 and CH4 ice lines with a supersolar C/O ratio from its protostellar disk, which in turn directly inherited its chemical abundances from the protostellar cloud. Finally, we simulate observing the planet with the James Webb Space Telescope (JWST) and show that differences in spectral signatures of key species can be recognized. Our study demonstrates the enormous importance of JWST in providing new insights into hot-Jupiter formation environments.
X-Ray Obscuration around Supermassive Black Holes in Active Galaxies
Authors: Reines Abraham J. , Fukumura Keigo
Published: June 2022

We investigate obscuration of Active Galactic Nuclei (AGNs), identified as Supermassive Black Holes (BH) in luminous galaxies. In this model, winds of plasma particles launched from the accretion disk are photoionized by hard X-ray continua from the AGN’s corona, resulting in obscuration in the X-ray band. Many X-ray spectroscopic observations suggest a majority of AGN are obscured by an intervening gas along our line of sight. Through photoionization calculations for selected wind solutions, we simulate the observed AGN obscuration distribution. We discuss the plausibility of the model by comparing our theoretical obscuration distribution to X-ray data by producing a library of synthetic absorption spectra of X-ray continua. Using our model’s obscuration findings, we show how the obscuration distribution is dependent on the model parameters.
Species conservation profiles of the endemic spiders Troglohyphantes (Araneae, Linyphiidae) from the Alps and the North-western Dinarides
Authors: Milano Filippo , Borio Luca , Komposch Christian , Mammola Stefano , Pantini Paolo , Pavlek Martina , Isaia Marco
Published: June 2022

The genus Troglohyphantes Joseph, 1881 (Araneae, Linyphiidae) includes 131 species, mainly distributed across the main European mountain ranges. The Alps and the North-western Dinarides account for 66 species, most of them showing narrow or even point-like distributions. The majority of Troglohyphantes spiders dwell in subterranean habitats including caves, mines, soil litter, rocky debris, and other moist and shaded retreats. Despite being intensively studied from a taxonomic, ecological and biogeographic standpoints, knowledge on the status of conservation and on the potential risk of extinction of these spiders is lagging. To date, only three species have been included in the global IUCN Red List, but their status has not been updated ever since their last assessment in 1996. The aim of this contribution is to assess the Alpine and North-western Dinaric species of the genus Troglohyphantes, and to re-assess the species previously evaluated, according to the last version of the IUCN Red List categories and criteria.

Among the 66 species here considered, 62 had sufficient data to allow the quantification of their Extent Of Occurrence (EOO) and Area Of Occupancy (AOO). Most of the species have a narrow distribution range, with an estimated EOO<20,000 km2 and AOO<2,000 km2, meeting the thresholds for the inclusion in the threatened categories. Five species have a more widespread distribution (EOO>20,000 km2), extending across multiple countries. The quality of the data on distribution of four species was not sufficient to provide a reliable estimation of the distribution range.

A continuing decline in EOO, AOO and habitat quality was inferred for 30 species. The majority of them are subterranean specialised species, with a reduced thermal tolerance and a low dispersal ability. Accordingly, changes in subterranean microclimatic conditions due to climate change represent a major threat for these species. Land use change and habitat alteration were identified as additional relevant threats for several species.

A considerable proportion of the species here assessed was found in protected areas and in sites of the Natura 2000 network. In addition, 14 species are formally protected by national and sub-national legislation. At present, 25 species are listed in the regional Red Lists.

Long-term monitoring programmes, management plans for both the species and their habitats, expansion of the extant protected areas and designation of new ones, should be considered as the most effective approaches to species conservation.
Atherosclerosis is a side effect of cellular senescence
Authors: Leonova Elena I. , Chirinskaite Angelina V. , Sopova Julia V.
Published: June 2022

Atherosclerosis is a systemic autoimmune disease of the arterial wall characterized by chronic inflammation, high blood pressure, oxidative stress, and progressive loss of cell and organ function with aging. An imbalance of mac­rophage polarization is associated with many aging diseases, including atherosclerosis. The polarization toward the pro-inflammatory M1 macrophage is a major promoter of the atheroma formation. It is known that efferocytosis, or ingestion of apoptotic cells, is stimulated by M2 macrophage polarization. A failure of efferocytosis leads to the prolon­gation of chronic pathology in tissue. In addition, fat-laden macrophages contribute to the plague progression by trans­forming into foam cells in response to excess lipid deposition in arteries. In spite of the generally accepted theory that macrophages capture oxidized low-density lipoprotein by phagocytosis and become foam cells, we postulate that the main source of lipid accumulation in foam cells are senescent erythrocytes. Senescent erythrocytes lose their plasticity, which affects the rheological blood properties. It is known that their membrane contains high levels of cholesterol. There is evidence that senescent erythrocytes play a pathogenic role in the atheroma formation after breaking down during flowing through an artery bifurcation. Here we review the current knowledge on the impact of age-associated immune cells and red blood cells modifications on atherogenesis.

Graphical abstract:
Three new troglobitic Coarazuphium (Coleoptera, Carabidae, Zuphiini) species from a Brazilian hotspot of cave beetles: exploring how the environmental attributes of caves drive ground-beetle niches
Authors: Pellegrini Thais Giovannini , Ferreira Rodrigo Lopes , Zampaulo Robson de Almeida , Vieira Letícia
Published: June 2022

Three new species of troglobitic beetles of the genusCoarazuphiumare described from specimens collected in iron ore caves in the Flona de Carajás in Brazil, doubling the number of known species for the Carajás region. The new species ofCoarazuphiumare morphologically similar to the already described species from the same region and are distributed in a small geographic range. From allCoarazuphiumspecies of the region, including the new ones, two stand out,C. spinifemurandC. xingusp. nov., which are the smallestCoarazuphiumspecies. Both species have shorter legs and antennae when compared to the others. The main characteristic that differentiatesC. xikrinsp. nov.andC. kayaposp. nov.from the other two species from the Carajás region,C. tapiaguassuandC. amazonicum, is that the new species have more numerous setigerous punctures dorsally on the head. With the three new species added to the six already described congeners, the area of intense mining of the Carajás region includes the highest diversity of obligatory cave-dwelling beetles in Brazil, representing a hotspot of cave beetles.Coarazuphium xikrinsp. nov.andC. amazonicumco-occur in some of the caves of the Carajás region, which is possible due to putative niche differentiation between the species. These findings highlight the importance of maintaining legal provisions that ensure the preservation of caves, especially those most relevant regarding physical and biotic aspects, which is crucial for the conservation of Brazilian subterranean biodiversity.
Et si la France ne vendait plus d’armes ?
Authors: Refalo Alain , Vaillant François
Published: June 2022

Alain Refalo et François Vaillant reviennent sur le long chemin des campagnes menées par de nombreux militants contre les ventes d’armes en France et réaffirment l’idée du transarmement.
Être festivalière au Hellfest. Passions et transgressions féminines dans un univers culturel masculin
Authors: Guibert Christophe
Published: June 2022

Le festival Hellfest, dédié aux musiques metal, possède une notoriété qui dépasse l’auditoire ordinaire de cet univers culturel. Mais, malgré une médiatisation plus grande, les amateurs de ce style musical sont toutefois encore soumis à des stéréotypes sociaux tenaces, la surreprésentation masculine, en premier lieu, une appartenance à des catégories populaires. Or, notre étude montre que la musique metal est finalement assez peu le fait d’un goût exclusivement populaire et masculin. Cela dit, être une femme dans un festival de musique metal ne va pas de soi. Quelles sont donc les configurations socialisatrices qui sont à la base de la constitution des goûts musicaux et esthétiques dans une approche des genres ? En nous permettant de nous interroger sur les rapports sociaux de genre, en quoi ce festival participe-t‑il de l’avancée en mixité dans un bastion culturel masculin ?
Politiser l’équipement, équiper l’autonomie Enquête sur l’autoconstruction de matériel agricole en France
Authors: Goulet Frédéric , Meyer Morgan , Cardinael Céline
Published: June 2022

Cet article explore les ressorts rhétoriques et pratiques de l’autonomie technologique. Il s’appuie sur une recherche conduite autour des activités d’un organisme de formation prônant l’autoconstruction de machines agricoles, l’ Atelier Paysan . Il montre tout d’abord une pluralité de modes d’existence de l’autonomie : une autonomie dotée d’une épaisseur politique, prônée par les formateurs, et une autonomie plus pragmatique pour les agriculteurs. Seront ensuite mises en évidence l’importance des outils et des fournitures mobilisés lors des formations, constituant l’infrastructure de toute activité de construction et de maintenance. L’article argumente ainsi en faveur d’une prise en compte accrue de la dimension matérielle des processus d’autonomisation.
Margaret Thatcher et la réforme du Civil Service : les obstacles et les réalisations (1979 à 1990)
Authors: Esposito Marie-Claude
Published: June 2022

Dans le programme électoral pour les élections législatives de 1979, il n’y avait pas de référence directe à la réforme du Civil Service britannique qui était l’objet de critiques sévères à l’époque. Toutefois, les conservateurs, qui arrivèrent au pouvoir en mai 1979, s’étaient engagés à réduire la taille du gouvernement et les dépenses publiques, et à faire la chasse aux sources de gaspillage et d’inefficacité. Margaret Thatcher voulait également réaffirmer le contrôle du pouvoir politique sur le Civil Service , qu’elle considérait comme un obstacle à la réforme de l’État. En conséquence, les gouvernements Thatcher, influencés par les idées néolibérales, ont introduit des réformes qui ont servi de modèles aux autres pays. Au Royaume-Uni, la réalisation d’économies et l’amélioration de l’efficience furent d’abord prioritaires. Puis, vers la fin des années 1980, les réformes devinrent plus radicales grâce à l’introduction de mécanismes de marché et la création d’agences d’exécution autonomes (programme Next Steps ).
Édouard Balladur, un pompidolien à l’Économie et aux Finances ?
Authors: Tricaud Sabrina
Published: June 2022

L’article retrace le parcours d’Édouard Balladur depuis son entrée au cabinet de Georges Pompidou à Matignon en 1964, jusqu’à son arrivée rue de Rivoli en mars 1986. Il étudie les racines de sa pensée économique, notamment ses liens avec le gaullisme, le pompidolisme et le libéralisme. S’il critique le dirigisme économique, il n’apparaît pas comme un ultra-libéral. Il est bien davantage partisan d’un libéralisme ordonné.
Nature et suppôt. Du thomisme moderne aux lectures contemporaines du Quodlibet II de Thomas d’Aquin
Authors: Agostini Igor
Published: June 2022

Cet article se propose de retracer quelques étapes essentielles du grand débat du thomisme des xvi e et xvii e siècles sur la question de la distinction entre essence et suppôt chez Thomas d’Aquin et, notamment, sur le problème de la conciliation entre l’enseignement de l’article 3 de la quaestio  III de la Prima Pars de la Summa theologiae et la doctrine du Quodlibet II . Le but est de reconstruire un moment crucial de l’histoire du thomisme et, en même temps, de montrer la contribution possible que son étude peut apporter aux lectures contemporaines, qui doivent plus qu’elles ne le croient ou ne le reconnaissent à la tradition thomiste.
L’idée de structure ontologique du monde
Authors: Lefftz Grégoire
Published: June 2022

La philosophie analytique récente a vu naître d’importants débats de méthode concernant la bonne manière de pratiquer l’ontologie, qui voient s’opposer les partisans déclarés de Quine à ceux de Carnap. Au cœur de ces débats se trouve l’idée que le monde possède une structure ontologique propre, indépendante de notre manière de le conceptualiser ou de l’organiser. C’est cette idée qui est ici plus précisément examinée, dans le but de la clarifier. Cet article défend la thèse que, si le monde possède bien une structure intrinsèque, celle-ci est de nature physique et non ontologique. Quant à cette dernière, elle ne peut être conçue indépendamment d’une subjectivité consciente et constituante. Si cet argument est correct, il donne raison à l’école néo-carnapienne, mais surtout il étaye l’idée qu’il ne saurait y avoir d’ontologie que transcendantale, une idée dont les germes semblent être en train de poindre au sein de l’école analytique.
La prise en compte dans le contrôle de constitutionnalité des lois des garanties légales des exigences constitutionnelles
Authors: Haulbert Marine
Published: June 2022

La prise en compte des « garanties légales des exigences constitutionnelles » par le Conseil constitutionnel n’est pas spécifique à certaines catégories de normes issues du bloc de constitutionnalité. Les droits procéduraux semblent néanmoins être leur terrain de prédilection, permettant au juge de renforcer – dans une certaine mesure – le contrôle qu’il exerce sur la loi. L’effectivité de l’ensemble des droits et libertés n’en est pourtant pas favorisée, cette exigence étant nettement amoindrie en matière de droits substantiels.
La portée constitutionnelle des dispositions de la Charte de l’environnement
Authors: Deffairi Meryem
Published: June 2022

La Charte de l’environnement érige un ensemble de droits, devoirs et principes environnementaux au rang de normes de valeur constitutionnelle, mais pour autant il n’en ressort pas une « catégorie » de normes. En effet, en l’état actuel de la jurisprudence, la portée des dispositions de la Charte n’est pas uniforme. Leur applicabilité n’est pas pleinement reconnue par les juges et le contrôle opéré sur leur fondement est hésitant. L’essor d’une lecture finaliste du texte par le Conseil constitutionnel devrait permettre aux juges, non seulement, de rendre aux différentes dispositions de la Charte leur socle commun, mais aussi et surtout d’étendre le contrôle opéré sur les potentielles atteintes du législateur aux droits, devoirs et principes environnementaux.
Femtosecond Intrastromal Lenticule Implantation (FILI) for Management of Moderate to High Hyperopia: 5-Year Outcomes
Authors: Brar Sheetal , Ganesh Sri , Sriganesh Skanda Samak , Bhavsar Hemali
Published: June 2022

PURPOSE:

To report the long-term clinical experience following femtosecond intrastromal lenticule implantation (FILI) for the management of moderate to high hyperopia.

METHODS:

Eligible patients who underwent FILI for moderate to high hyperopia from July 2013 to October 2020 were included. A donor small incision lenticule extraction lenticule, matched for refractive error, was implanted into the recipient's corneal pocket created using a femtosecond laser at 160 µm depth. Visual and refractive outcomes and long-term complications were evaluated at the end of a mean follow-up of 68 ± 17.28 months (5.6 years).

RESULTS:

Forty-two eyes of 25 patients (mean age: 27.29 ± 5.52 years) were analyzed. The mean spherical equivalent reduced significantly from +5.50 ± 1.96 to +0.66 ± 1.17 diopters (D) at last follow-up visit. Thirty eyes (71%) were within ±1.00 D of spherical equivalent correction. Cumulative uncorrected distance visual acuity of 20/40 or better was achieved in 34 eyes (81%). Efficacy and safety indices were 0.86 ± 0.19 and 1.17 ± 0.39, respectively. There was a significant increase in mean keratometry (Kmean) anterior, central corneal thickness, Q-value, and corneal higher order aberrations and a decrease in Kmean posterior 2 weeks postoperatively, without any significant change in these parameters thereafter (
P
> .05). Four eyes of 3 patients underwent enhancement and another 4 eyes underwent explantation of the lenticule followed by exchange (2 eyes) and hyperopic laser in situ keratomileusis (2 eyes). No eye lost more than one line of CDVA.

CONCLUSIONS:

At 5 years of follow-up, FILI for moderate to high hyperopia showed good safety, efficacy, and reversibility. Modification of nomograms and surgical planning may be employed for further refinement of the outcomes.

[
J Refract Surg.
2022;38(6):348–354.]
Bifurcation analysis of solutions to a nonlocal phytoplankton model under photoinhibition
Authors: Zhou Yuan-Yuan
Published: June 2022

We investigate the effect of photoinhibition in a nonlocal reaction-diffusion-advection equation, which models the dynamics of a single phytoplankton species in a water column where the growth of the species depends solely on light. First, for \begin{document}$ k_0 = 0 $\end{document}, we proved that system (1)-(3) forms a strongly monotone dynamical system with respect to a non-standard cone related to the cumulative distribution function. Second, local and global bifurcation theory are used to show that the model with photoinhibition possesses multiple steady-states with the change of parameter ranges.
Asymptotic behavior of solutions to coupled semilinear parabolic equations with general degenerate diffusion coefficients
Authors: Jing Xinxin , Nie Yuanyuan , Wang Chunpeng
Published: June 2022

This paper concerns the asymptotic behavior of solutions to one-dimensional coupled semilinear degenerate parabolic equations with superlinear reaction terms both in bounded and unbounded intervals. The equations are degenerate at a lateral boundary point and the diffusion coefficients are general functions. For the problem in a bounded interval, it is shown that there exist both nontrivial global solutions for small initial data and blowing-up solutions for large ones in the case that the degeneracy is not strong. Whereas in the case that the degeneracy is strong enough, the nontrivial solution must blow up in a finite time. For the problem in an unbounded interval, blowing-up theorems of Fujita type are established. If the degeneracy of the equations at the lateral boundary point is strong enough, it is shown that any nontrivial solution must blow up in a finite time. If the degeneracy of the equations at the lateral boundary point is not strong, it is proved that the critical Fujita curve is determined by the asymptotic behavior of the diffusion coefficient at infinity. Furthermore, the critical case is also considered.
Hodge and Teichmüller
Authors: Kahn Jeremy , Wright Alex
Published: June 2022

We consider the derivative \begin{document}$ D\pi $\end{document} of the projection \begin{document}$ \pi $\end{document} from a stratum of Abelian or quadratic differentials to Teichmüller space. A closed one-form \begin{document}$ \eta $\end{document} determines a relative cohomology class \begin{document}$ [\eta]_\Sigma $\end{document}, which is a tangent vector to the stratum. We give an integral formula for the pairing of \begin{document}$ D\pi([\eta]_\Sigma) $\end{document} with a cotangent vector to Teichmüller space (a quadratic differential). We derive from this a comparison between Hodge and Teichmüller norms, which has been used in the work of Arana-Herrera on effective dynamics of mapping class groups, and which may clarify the relationship between dynamical and geometric hyperbolicity results in Teichmüller theory.
An Initial Habitat Suitability Analysis for the Red Wolf Across its Historical Range
Authors: Toivonen Lauren K. , Mossotti Regina H. , He Hong S. , Gompper Matthew E.
Published: June 2022

The red wolf Canis rufus is endemic to the southeastern United States and has been reduced to a single population occupying the Albemarle Peninsula in coastal North Carolina. To ensure species persistence and to meet conservation goals as outlined in the Red Wolf Recovery Plan (USFWS 1990, 2007, 2018a), it is important to conduct habitat suitability analyses to identify potential sites for future reintroductions. Problematically, such habitat suitability analyses are hindered by limited insight into how the red wolf once used habitat in landscapes that differ extensively from the currently occupied locality. Therefore, here we outline and parameterize a habitat suitability analysis framework for identifying and ranking potential reintroduction sites across the historical range of the species. We used a geographic information system approach to develop a habitat suitability model based on indices of landscape type (i.e., cropland, forest) and metrics based on distance from a point to nearest road-types and to human populations. We created a land-use index based on information on habitat suitability, preference, and use extracted from the literature. We then incorporated human population measures and distances to major roads to create a single model of ranked suitability throughout the study area. We further used this model to identify suitability of large (> 1,000 km2) parcels of federally managed lands. Results indicate large areas of potentially suitable lands occurring in multiple National Forests situated across the historical range of the species. This approach to habitat suitability analysis development is customizable and can be applied to other species whose historical ranges cover a variety of habitat types, but data are lacking on specifics about how the species used these habitats across their range.
Zo ver of zo dichtbij? Perceptie van de burger over de aanwezigheid van de internationale instellingen in Brussel
Authors: Foret François
Published: June 2022

La perception par les citoyens de la présence des institutions internationales à Bruxelles reste sous-étudiée. Notre étude contribue à combler ce manque via un sondage mené sur un échantillon représentatif de Bruxellois en septembre 2021. L’objectif est d’analyser les représentations et pratiques de la population locale à l’égard des institutions internationales. Nos données montrent qu’une évaluation positive est faite des apports de ces dernières en matière d’économie, d’emploi, de biens publics, d’identité et de culture. Ces bénéfices s’accompagnent néanmoins de coûts perçus en termes de risques terroristes, d'intégration d'une immigration jugée excessive et d’aliénation identitaire. En conclusion, le monde des institutions internationales semble coexister et interagir avec celui des Bruxellois ordinaires dans une relation d’acceptation empreinte de distance et d’indifférence.
Experimental proof-of-principle of heat recovery and recirculation in a reciprocating steam engine. Applicability of the technology to present electricity generating power plants and estimation of the yearly world energy saving and reduction of greenhouse gas emission
Authors: Panarella Emilio
Published: June 2022

The motivation for the present study is energy production from thermonuclear fusion, as discussed in recent works [Panarella, Phys. Essays 33, 283 (2020); 34, 256 (2021); Peretti et al., Phys. Essays 34, 596 (2021)]. The direction of research for the attainment
of the milestone of fusion energy breakeven was analyzed in depth in those works. The path of increasing the efficiency of the energy input deposition was found to be favorable relative to the alternative path of increasing the fusion energy output in ever bigger machines, as pursued for the
past seven decades by all major research programs. The input for the fusion machines is electrical energy, which is generated from conventional engines that convert heat to work. In a simulation study, it was found that the efficiency of these engines could be improved through heat recovery
and recirculation without violating the second law of thermodynamics. However, an experimental proof-of-principle was required to conclusively prove what the simulation indicated to be possible. The present study reports on such an experimental confirmation. It demonstrates experimentally
a novel thermodynamic cycle where heat is re-used and re-circulated in a reciprocating steam engine. An advanced study of the second law of thermodynamics is provided that justifies this experimental result, as well as its historical interpretation. Re-use and recirculation of heat in engines
used in power plants all over the world leads to global energy savings, as well as to significant reductions of global greenhouse gas emissions. These are estimated on a yearly time-scale with the most recent data available. Their significance regarding mitigation of climate change is highlighted.
Discretization and de-geometrization (II): Quantizing Minkowski's spacetime continuum
Authors: Epstein Harry Ian
Published: June 2022

A path toward quantizing gravity is suggested by describing the emergence of the spacetime continuum and its curvature using a mechanistic substratum model of discrete entities. By fusing pregeometry and the new mathematics of endo-geometry, a concept of a dynamically changing hyperspherical
“quantized bubble” replaces the conventional geometric point. A quantum foam is an assemblage of these interacting bubbles. The structure of the cosmos, particles, and black holes are treated as naturally emerging four-dimensional hyperspheres. An insight into dark energy is considered.
Classical physics derivation of quantization of electron elliptical orbit in hydrogenlike atom
Authors: Zeng Jiqing
Published: June 2022

On the basis of revising the quantum concept and reinterpreting Bohr's hydrogen atom structure model in classical physics, this paper deduces the elliptical orbital energy level formula of electrons in hydrogenlike atoms in detail. When the electron transition time is taken as unit
time (1 s), the energy level formula is completely consistent with Bohr Sommerfeld's atomic structure theory.
The modified fundamental equations of quantum mechanics
Authors: Wang Huai-Yu
Published: June 2022

The Schrödinger equation, Klein‐Gordon equation (KGE), and Dirac equation are believed to be the fundamental equations of quantum mechanics. Schrödinger’s equation has a defect in that there are no negative kinetic energy (NKE) solutions. Dirac’s equation
has positive kinetic energy (PKE) and NKE branches. Both branches should have low-momentum, or nonrelativistic, approximations: One is the Schrödinger equation, and the other is the NKE Schrödinger equation. The KGE has two problems: It is an equation of the second time derivative
so that the calculated density is not definitely positive, and it is not a Hamiltonian form. To overcome these problems, the equation should be revised as PKE- and NKE-decoupled KGEs. The fundamental equations of quantum mechanics after the modification have at least two merits. They are unitary
in that all contain the first time derivative and are symmetric with respect to PKE and NKE. This reflects the symmetry of the PKE and NKE matters, as well as, in the author’s opinion, the matter and dark matter of our universe. The problems of one-dimensional step potentials are resolved
by utilizing the modified fundamental equations for a nonrelativistic particle.
Mathematical extension of special relativity into three-dimensional internal acceleration
Authors: Czajko Jakub
Published: June 2022

The special theory of relativity (STR) has already been expanded onto normal and binormal subcomponents of an internal acceleration visible within 3D trihedron moving in Frenet frame (T,N,B) along the trajectory curve, in addition to the constant tangential speed of classical
STR. Now the STR is extended into tangential, normal, and binormal subcomponents of total internal acceleration in the (moving, curving, and twisting/torsing) trihedron via the varying total internal speed that is extracted from the external speed, which is allowed to vary now with the extended
proper/moving time in the external length-based space within operationally imaginary but physically real internal domain of the elapsing proper/moving time. The temporarily emerging extra internal acceleration also implies temporarily arising extra internal forces that could affect airplanes
in flight just as they affect the moving zero-dimensional mathematical point. For even an invisible, i.e., mathematically imaginary, force is still physically real active force.
Overcoming the quantum mechanics measurement problem by experiment and theory
Authors: Reiter Eric Stanley
Published: June 2022

The unknown mechanism of wave-function collapse is called the measurement problem. The problem is best portrayed by a beam-split coincidence test, usually performed with visible light. The notion that energy conservation requires quantization is challenged by considering new beam-split
tests and a threshold model (TM). An analysis of pulse heights in detectors for visible light concludes that their pulse height distribution is too broad to make the quantum/threshold distinction. This is because TM recognizes a preloaded state, understood in the loading theories of Planck,
Debye, and Millikan, but usually unrecognized. The narrow pulse height distribution of gamma-ray detectors overcomes this detector problem. In addition, a source of singly emitted radiation is required for these beam-split tests. To assure a singly emitted source, the well-known true-coincidence
test from nuclear physics is far more reliable than any test with visible light. One of my many successful beam-split coincidence tests with gamma-rays is described revealing the failure of quantum mechanics. After plotting the times between photoelectric effect pulses from the two detectors
and comparing to accidental chance, I report a seemingly two-for-one effect that contradicts a photon kind of energy conservation. My similar tests performed with alpha-rays also contradict quantum mechanics. To explain how matter can load up, I hypothesize that our electron constants h,
e, and m are maxima. Simple conserved ratios of these constants h/m, e/m, h/e, seen in equations involving electron beams, can explain how charge waves can spread, yet accumulate to measurable threshold values h, e, m,
upon absorption to convey particle-like effects.
Design of a Crooked-Wire Antenna by Differential Evolution and 3D Printing
Authors: Zhao Fei , Xu Qinghui , Zeng Sanyou
Published: June 2022

Antenna design often requires dealing with multiple constraints in the requirements, and the designs can be modeled as constrained optimization problems (COPs). However, the constraints are usually very strange, and then the feasible solutions are hard to be found. At the same time, the robustness for antenna design is an important consideration as well. To solve the above issues, the combination of differential evolution algorithm (DE) and 3D-printing technique is presented to design a new crooked-wire antenna. In the design process, DE is adopted to handle the constraints since DE is simple and efficient in finding feasible solutions. The objective of the modeled COP, which is the sum of variance of the gain, axial ratio, and VSWR over the frequency band, is used to enhance the robustness of the antenna and widen the frequency band without additional computational cost. The precision of fabricating the antenna is ensured by using 3D-printing. The design of the NASA LADEE satellite antenna is chosen as an example to verify the method of this paper.
The Relationship Between Corporate Social Responsibility and Customer Loyalty
Authors: Nguyen Dinh Toan , Van Bach Khanh , Bui Khanh Linh , Tran Ngoc Mai , Le Hoang Ngan
Published: June 2022

This study was conducted to investigate the relationship between corporate social responsibility and customers’ loyalty. The study first reviewed previous research and developed hypotheses related to the research survey data sets collected through qualitative research with questionaires answered by 386 consumers of Grab holding inc, Data were collected via internet questionnaires. Structural Equation modeling (SEM) was used to test the study hypotheses. The findings from the study indicated that customer and envirnment oriented CSR had a significant positive effect on behavioral loyalty and attitude loyalty. Employees and community oriented CSR had a significant positive effect behavioral loyalty, while the attitude loyalty had a significant positive effect behavioral loyalty. Based on the study’s empirical analysis, some implications were proposed to help enterprises on how to CSR activities in order for them to enhance their customer’s loyalty.
Uni-Directional Tape Structures Consisting of Recycled Carbon Fibres and Polyamide 6 Fibers for High-Performance Thermoplastic Composites
Authors: Khurshid Muhammad Furqan , Hasan Mir Mohammad Badrul , Hoebel Simon , Abdkader Anwar , Cherif Chokri
Published: June 2022

Carbon fibers (CF) are indispensable for lightweight applications in the automotive, aircraft, construction, and wind energy sectors. In this paper, the focus is on the development of flexible, highly customizable Uni-directional tape structures (UD-tape) from recycled carbon fibers (rCF) and thermoplastic polyamide 6 (PA 6) fibers for thermoplastic composites with outstanding mechanical properties. For the development of UD-tapes, further developments of the carding and drawing processes for the production of rCF and PA6 slivers and the development of a prototype tape production are necessary. The production of the UD-tape takes place on a modified and constructively adapted set-up, consisting of a drafting unit, thermo-fixation unit, compacting unit, followed by the wind-up unit. The composite manufactured from the UD-tapes shows a very high tensile strength of 1339 ± 28 MPa and an E-module of 84.7 ± 2.3 GPa. The processing of rCF into UD-tapes shows high ecological and economic sustainability and, thus, the efficient usage of fossil resources to protect the environment.