bluuebunny/crossref_metadata_2025_split huggingface dataset:
High-resolution Observations of the Low Atmospheric Response to Small Coronal Heating Events in an Active Region Core
Authors: Testa Paola , Bakke Helle , Rouppe van der Voort Luc , De Pontieu Bart 
Published: October 2023

Abstract
High-resolution spectral observations of the lower solar atmosphere (chromosphere and transition region) during coronal heating events, in combination with predictions from models of impulsively heated loops, provide powerful diagnostics of the properties of the heating in active region cores. Here, we analyze the first coordinated observations of such events with the Interface Region Imaging Spectrograph (IRIS) and the CHROMospheric Imaging Spectrometer (CHROMIS), at the Swedish 1 m Solar Telescope (SST), which provided extremely high spatial resolution and revealed chromospheric brightenings with spatial dimensions down to ∼150 km. We use machine-learning methods (k-means clustering) and find significant coherence in the spatial and temporal properties of the chromospheric spectra, suggesting, in turn, coherence in the spatial and temporal distribution of the coronal heating. The comparison of IRIS and CHROMIS spectra with simulations suggests that both nonthermal electrons with low energy (low-energy cutoff ∼5 keV) and direct heating in the corona transported by thermal conduction contribute to the heating of the low atmosphere. This is consistent with growing evidence that nonthermal electrons are not uncommon in small heating events (nanoflare to microflares), and that their properties can be constrained by chromospheric and transition region spectral observations.
Discovery of a Planar Black Hole Mass Scaling Relation for Spiral Galaxies
Authors: Davis Benjamin L. , Jin 金 Zehao 泽灏 
Published: October 2023

Abstract
Supermassive black holes (SMBHs) are tiny in comparison to the galaxies they inhabit, yet they manage to influence and coevolve along with their hosts. Evidence of this mutual development is observed in the structure and dynamics of galaxies and their correlations with black hole mass (M
•). For our study, we focus on relative parameters that are unique to only disk galaxies. As such, we quantify the structure of spiral galaxies via their logarithmic spiral-arm pitch angles (ϕ) and their dynamics through the maximum rotational velocities of their galactic disks (v
max). In the past, we have studied black hole mass scaling relations between M
• and ϕ or v
max, separately. Now, we combine the three parameters into a trivariate M
•–ϕ–v
max relationship that yields best-in-class accuracy in prediction of black hole masses in spiral galaxies. Because most black hole mass scaling relations have been created from samples of the largest SMBHs within the most massive galaxies, they lack certainty when extrapolated to low-mass spiral galaxies. Thus, it is difficult to confidently use existing scaling relations when trying to identify galaxies that might harbor the elusive class of intermediate-mass black holes (IMBHs). Therefore, we offer our novel relationship as an ideal predictor to search for IMBHs and probe the low-mass end of the black hole mass function by utilizing spiral galaxies. Already with rotational velocities widely available for a large population of galaxies and pitch angles readily measurable from uncalibrated images, we expect that the M
•–ϕ–v
max fundamental plane will be a useful tool for estimating black hole masses, even at high redshifts.
Empreintes économiques, politiques et culturelles de la colonisation française de l’Afrique
Authors: Coquery-Vidrovitch Catherine 
Published: October 2023

Des premières « intentions coloniales », au milieu du XVII e siècle, marquées par le commerce des esclaves à l’embouchure du fleuve Sénégal, à la veille des indépendances : le présent article donne un aperçu général des empreintes de la colonisation française de l’Afrique dans les domaines économique, politique et culturel.
Pour une approche entrepreneuriale de la recherche scientifique : opportunité, écosystème et business model
Authors: Koubaa Salah 
Published: October 2023

Cet article tente de mettre en valeur le métier de chercheur dans le domaine de l’économie et de la gestion. L’objectif est de positionner la réflexion dans une posture entrepreneuriale en permettant de rapprocher le métier de chercheur et sa raison d’être de l’entrepreneur. L’opportunité est le concept clé de cette tentative de rapprochement pour expliquer les postures épistémologiques souvent utilisées dans les thèses. On tente également de situer l’action du chercheur dans une perspective d’action en s’appuyant sur des concepts préalablement établis afin d’évaluer l’apport de sa production. L’article consiste à parvenir à ce que l’on peut qualifier de recherche orientée vers l’action ou de connaissance actionnable en proposant un modèle scientifique pour le chercheur, similaire au business model de l’entrepreneur. La relation entre les pratiques entrepreneuriales et la recherche est dialectique et en quête de sens. Ce rapprochement est réalisé en utilisant les perspectives philosophiques de l’entrepreneuriat comme point d’entrée afin d’aborder les postures épistémologiques souvent débattues dans la recherche scientifique. L’accent est mis sur l’« opportunité » pour l’entrepreneur et sur le « gap » pour le chercheur. Ainsi, le lien concerne également l’écosystème entrepreneurial et l’écosystème scientifique afin de mettre en évidence l’outil du « business model » largement utilisé dans l’entrepreneuriat pour aider les scientifiques à agir et à produire des connaissances exploitables.
Côté pile ou côté face : regard croisé des différents acteurs de l’accompagnement entrepreneurial
Authors: Pouka Pouka Marie Romuald , Ondoua Biwolé Viviane 
Published: October 2023

L’objet du présent article est d’apprécier le processus d’accompagnement entrepreneurial du point de vue simultané des accompagnants et accompagnés. De nature exploratoire, l’étude qualitative passe en revue 18 entretiens semi-structurés dans deux structures d’accompagnement au Cameroun. Les résultats révèlent que, contrairement à la littérature qui décrit le processus d’accompagnement comme bienveillant, il est source de conflits et présente des carences en termes d’attentes divergentes entre accompagnants et accompagnés. Il apparaît alors qu’à l’opposé de la perception partagée selon laquelle les structures d’accompagnement sont des outils performatifs, ils génèrent des dérives qui devraient constituer des pistes de recherches ultérieures.
Amyloid-beta and tau protein beyond Alzheimer’s disease
Authors: Abyadeh Morteza , Gupta Vivek , Paulo Joao A. , Mahmoudabad Arezoo Gohari , Shadfar Sina , Mirshahvaladi Shahab , Gupta Veer , Nguyen Christine T.O. , Finkelstein David I. , You Yuyi , Haynes Paul A. , Salekdeh Ghasem H. , Graham Stuart L. , Mirzaei Mehdi 
Published: October 2023

AbstractThe aggregation of amyloid-beta peptide and tau protein dysregulation are implicated to play key roles in Alzheimer’s disease pathogenesis and are considered the main pathological hallmarks of this devastating disease. Physiologically, these two proteins are produced and expressed within the normal human body. However, under pathological conditions, abnormal expression, post-translational modifications, conformational changes, and truncation can make these proteins prone to aggregation, triggering specific disease-related cascades. Recent studies have indicated associations between aberrant behavior of amyloid-beta and tau proteins and various neurological diseases, such as Alzheimer’s disease, Parkinson’s disease, and amyotrophic lateral sclerosis, as well as retinal neurodegenerative diseases like Glaucoma and age-related macular degeneration. Additionally, these proteins have been linked to cardiovascular disease, cancer, traumatic brain injury, and diabetes, which are all leading causes of morbidity and mortality. In this comprehensive review, we provide an overview of the connections between amyloid-beta and tau proteins and a spectrum of disorders.
Surgical Management of Vision Loss in Cerebral Venous Thrombosis: Case Series from a Tertiary Care Stroke Center
Authors: Reddy Taallapalli Ashok Vardhan , Seshagiri Doniparthi V. , Reddy Haripriya Krishna , Patwardhan Ameya A. , Joshi Tarachand H. , Shukla Dhaval , Kulkarni Girish B. , Mustare Veerendra Kumar , Ramakrishnan Subasree 
Published: October 2023

Abstract

Background and Purpose:
Cerebral venous thrombosis (CVT) presenting as vision loss is uncommon. Raised intracranial tension in CVT is proposed as one of the mechanisms (13.2%). There are still unknown underlying mechanisms to explain vision loss in CVT. The safety and outcome of the surgery (optic nerve sheath fenestration [ONSF] or theco-peritoneal shunt [TPS]) to reduce intracranial hypertension and prevent vision loss has not been studied.

Methods:
A retrospective case record review of CVT patients with impending vision loss who underwent ONSF/TPS from 2007 to 2019 was performed from the stroke registry. All patients had formal neuro-ophthalmological evaluation and documentation of visual acuity, supplemented by visual field assessments by perimetry in a subset of patients. Safety and outcomes were assessed based on vision improvement and adverse effects after the surgery.

Results:
Among approximately 1400 patients with CVT admitted in the stroke ward over 12 years, surgery for rescuing vision was done in 18. Among these, the males were 6, and the females were 12. The mean age of presentation was 24 (range 18–52 years). All of them had headaches and progressive blurring of vision with papilledema. The number of patients who underwent TPS was 13, ONSF was 1, and both were 4. In the TPS group (26 eyes), vision improved in 15 eyes (57.7%), remained status-quo in 8 eyes (30.7%), and worsened in 3 eyes (11.5%). Four patients underwent both surgeries; three eyes improved, two remained status quo, and three worsened. One patient underwent ONSF, and his vision remained status quo (no perception of light). Three patients (17.6%) of the TPS group had minor complications (low-pressure headache, subdural hygroma), and five (29.4%) had major complications like subdural hemorrhage, abdominal wound infection, and meningitis.

Conclusion and Implications:
In patients with CVT, adequate vision monitoring is mandatory. Shunt surgeries (especially TPS) may help in stabilizing/improving vision in CVT patients with impending vision loss, despite adequate anti-edema measures (53.8% improved). Early diagnosis and precise decisions in referring for surgery are crucial.
Median Nerves’ Electrical Activation Reduces Ipsilateral Brachial Arteries’ Blood Flow and Diameter
Authors: Ege Fahrettin , Kazci Ömer 
Published: October 2023

Purpose:
Our main objective in this study was to determine whether there is a difference between ipsilateral and contralateral brachial arteries’ flow parameters in response to median nerves’ electrical activation.

Material and Methods:
The study was conducted in healthy and active subjects. The arterial diameter and flow were measured using the probe from the brachial artery. Then, the median nerve was stimulated for 5 seconds via the bipolar stimulus electrode. Arterial diameter and flow were measured once more with the Doppler transducer, which kept going to monitor continuously just after the fifth stimulus. After a week, the same subjects are invited for the purpose of measuring the contralateral brachial arteries’ vasomotor response to the same stimulus.

Results:
Before electrical stimulation, the median flow rate was 72.15 ml/min; after stimulation, the median flow rate was 39.20 ml/min. The drop in flow after stimulation was statistically significant (P < 0.001). While the median value of brachial artery vessel diameter before median nerve stimulation in the entire study group was 3.50 mm, the median value of vessel diameter after stimulation was 2.90 mm. After stimulation, the median nerve diameter narrowed statistically significantly (P < 0.001). As for the contralateral brachial in response to the right median nerves’ activation, no significant flow or diameter change was found (P = 0.600, P = 0.495, respectively).

Conclusion:
We discovered that electrical stimulation of the median nerve caused significant changes in ipsilateral brachial artery blood flow and diameter in healthy volunteers. The same stimulation does not result in flow parameter changes in the contralateral brachial artery.
Efficacy and Safety of a Skin Healing Cream in Mild-to-Moderate Eczema in a Mixed Population Including Infants: An Open-label, Single-arm Study
Authors: Dhar Shilpa , Patel Trupti , Bapna Arohi , Raghavan Govindarajan 
Published: October 2023

Abstract

Introduction:
Atopic dermatitis is an inflammatory skin condition that begins in infancy, characterized by extreme skin dryness, excoriations, and erythema. A completely natural product with plant extracts and vegetable oils was developed to manage eczema and associated conditions in a mixed population including infants.

Materials and Methods:
An open-label, single-arm, single-center study was conducted to evaluate the safety and efficacy of the test product on eczema severity. A total of 58 subjects, including infants, children, and adults aged 0 months to 60 years, diagnosed with mild-to-moderate eczema, were included. The subjects applied a small amount of product on the affected area twice daily for 14 days. Three-Item Severity (TIS) score, Eczema Area and Severity Index (EASI) change, and symptomatic relief were assessed at various time points.

Results:
The TIS score in children significantly reduced from baseline at 24 h (12.22%), day 7 (52.26%), and day 14 (79.74%), (all P <0.0001). Similarly, a statistically significant reduction in EASI was observed in adults at day 7 (13.68%) and day 14 (30.87%) (all P < 0.0001), which continued to offer relief throughout the study duration. Irritation significantly decreased from baseline throughout the study duration to day 14 (75.17%) (P < 0.0001). A significant reduction in other symptoms including dryness, itching, rashes, and edema was also seen from day 7 to day 14 (P < 0.0001).

Conclusion:
The test product was found to be safe and effective in reducing eczema severity and associated conditions in infants and adults. It promotes the development of healthy neonatal skin and hence can be considered as a skin-healing cream for infants.
A Review of Dermal Melanocytosis
Authors: Gautam Manjyot , Shingala Kajomi 
Published: October 2023

Abstract
Dermal melanocytosis is a histological term used to describe a clinical spectrum of cutaneous diseases which present as bluish-gray pigmentation of the skin. The most common forms include the Mongolian spot (MS), nevus of Ota, nevus of Ito, and dermal melanocyte hamartoma sharing similar etiologies and histologic findings but different associations and prognosis. Although these lesions usually resolve by 1 to 2 years of age, widespread aberrant MSs, nevus of Ota, and nevus of Ito can persist into adulthood and can become a great concern for the patients regarding the pigmentation and health risk associated with the same. An extensive literature search was done; all clinical trials, randomized double-blind or single-blind controlled trials, open-label studies, retrospective studies, reviews, case series, and case reports concerned with dermal melanocytosis were screened. The selected articles were retrieved; the final manuscript was prepared, analyzed, and presented in a narrative fashion.
Lambert series of logarithm, the derivative of Deninger’s function
$R(z),$
and a mean value theorem for
$\zeta \left (\frac {1}{2}-it\right )\zeta '\left (\frac {1}{2}+it\right )$
Authors: Banerjee Soumyarup , Dixit Atul , Gupta Shivajee 
Published: October 2023

AbstractAn explicit transformation for the series
$\sum \limits _{n=1}^{\infty }\displaystyle \frac {\log (n)}{e^{ny}-1}$
, or equivalently,
$\sum \limits _{n=1}^{\infty }d(n)\log (n)e^{-ny}$
for Re
$(y)>0$
, which takes y to
$1/y$
, is obtained for the first time. This series transforms into a series containing the derivative of
$R(z)$
, a function studied by Christopher Deninger while obtaining an analog of the famous Chowla–Selberg formula for real quadratic fields. In the course of obtaining the transformation, new important properties of
$\psi _1(z)$
(the derivative of
$R(z)$
) are needed as is a new representation for the second derivative of the two-variable Mittag-Leffler function
$E_{2, b}(z)$
evaluated at
$b=1$
, all of which may seem quite unexpected at first glance. Our transformation readily gives the complete asymptotic expansion of
$\sum \limits _{n=1}^{\infty }\displaystyle \frac {\log (n)}{e^{ny}-1}$
as
$y\to 0$
which was also not known before. An application of the latter is that it gives the asymptotic expansion of
$ \displaystyle \int _{0}^{\infty }\zeta \left (\frac {1}{2}-it\right )\zeta '\left (\frac {1}{2}+it\right )e^{-\delta t}\, dt$
as
$\delta \to 0$
.
Performance analysis of atomic magnetometer and bandwidth‐extended loop antenna in resonant phase‐modulated magnetic field communication system
Authors: Lee Hyun Joon , Oh Jung Hoon , Kim Jang‐Yeol , Cho In‐Kui 
Published: October 2023

AbstractTelecommunications through an electrically conductive medium require the use of carrier bands with very‐low and ultralow frequencies to establish radiofrequency links in harsh environments. Recent advances in atomic magnetometers operating at very‐low frequencies have facilitated the reception of digitally modulated signals. We demonstrate the transmission and reception of quadrature phase‐shift keying (QPSK) signals using a multi‐resonant loop antenna and atomic magnetometer, respectively. We report the measured error vector magnitude according to the symbol rate for QPSK modulation and analyze the bandwidth of a receiver based on the atomic magnetometer. The multi‐resonant loop antenna noticeably enhances the bandwidth by over 70% compared with a single‐loop antenna. QPSK modulation for a carrier frequency of 20 kHz and symbol rate of 150 symbols per second verifies the feasibility of demodulation, and the measured error vector magnitude and signal‐to‐noise ratio are 7.29% and 30.9 dB, respectively.
Control of the BLDC Motor Using Ant Colony Optimization Algorithm for Tuning PID Parameters
Authors: Poudel Yam Krishna , Bhandari Pratap 
Published: October 2023

A key component of industrial applications is the DC motor. Hence, due to their superior features and performance, Brushless DC (BLDC) motors are more suitable for fractional kilowatt motor’s applications. Albeit, for the purpose of controlling the speed of Brushless DC motor easily, it is quite difficult for obtaining the best controlling performance through the use of the conventional approaches of tuning. In order to search the Proportional – Integral - Derivative (PID) tuning parameters optimally for the different controllers taken into consideration, the use of modern bio-inspired metaheuristic technique called Ant Colony Optimization (ACO) algorithm is employed. This paper particularly discusses and presents on the tunning parameters of . The performance of traditional controller and novel approach is compared, analyzed and presented. Brushless DC motor is buildup in MATLAB and the usage, importance, efficiency and strength of the proposed approach is validated against traditional tunning methods. The obtained result shows better performance of the proposed system with the aid of the proposed controllers for different speed trajectories of the drive when compared with that of the classical Proportional – Integral - Derivative (PID) controllers. Ant Colony Optimization (ACO) seems to be the one of the most effective tuning techniques of Proportional – Integral - Derivative (PID) controllers. This research has significant impact on modern control applications.

Received: 9 June 2023 | Revised: 20 September 2023 | Accepted: 10 October 2023

Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.

Data Availability Statement
Data available on request from the corresponding author upon reasonable request.
Identification of Key Gene Modules and Novel Transcription Factors in Tetralogy of Fallot Using Machine Learning and Network Topological Features
Authors: Charles Sona , Natarajan Jeyakumar 
Published: October 2023

Tetralogy of Fallot (TOF) is a combinatorial congenital abnormality comprising of ventricular septal defect (VSD), pulmonary valve stenosis, a misplaced aorta and a thickened right ventricular wall. Biologically relevant module identification from transcriptome data may be considered as a binary classification problem. We utilized publicly accessible mRNA expression data to extract the differentially expressed genes (DEGs) and further weighted gene co-expression network analysis to identify ten modules in TOF. Network topological properties of modular and non-modular genes were considered as features for binary classification. We applied SVM, Random Forest, Decision Trees, KNN and Naïve Bayes algorithm to network features. Random Forest and decision tree algorithms displayed an accuracy of 99.1% and 98% respectively. All the methods, in combination predicted 71 common genes which were used to construct a gene regulatory network. The network was expanded to include 30 miRNAs targeting the genes. Interestingly, 39 out of 71 genes were transcription factors out of which ELN, SOX6 and FOXO3 genes are novel candidates in TOF. The work also provides a sub-module of genes and miRNAs supported by statistical models as prospective candidates to be biomarkers.

Received: 18 August 2023 | Revised: 27 September 2023 | Accepted: 8 October 2023

Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.

Data Availability Statement
The data that support this work are available upon reasonable request to the corresponding author.
COVID-19-associated neurological sequelae: A case series on cerebral microbleeds and encephalopathy
Authors: Safan Abeer Sabry , Imam Yahia , Khatib Mohamad Y. , Wraidat Mohammad Al , Altermanini Mohammad M. , Al-Mughalles Salah A. , Al-Assaf Anood , Olish Mariam , Elshafei Moustafa S. , Nashwan Abdulqadir J. 
Published: October 2023

Background: Critical illness-associated cerebral microbleeds and leukoencephalopathy connected to coronavirus disease 2019 (COVID-19) infection are emerging areas of concern in current medical literature.
Methods: We reviewed cases of patients with COVID-19-associated neurological manifestations to study the prevalence and outcome of such conditions.
Case Series Findings: Our review yielded seven distinct patients. Six exhibited cerebral microbleeds, primarily localized in the juxtacortical white matter and the corpus callosum. In contrast, one individual presented with leukoencephalopathy. Tragically, of these patients, five succumbed to their ailments. One was discharged with mild cognitive impairments, while another underwent a tracheostomy and was subsequently moved to a long-term care establishment.
Conclusion: Our findings underscore the significance of neuro-radiological observations in those grappling with severe manifestations of COVID-19, drawing attention to the possible neurological repercussions of the virus.