bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unexpected space weather causing the reentry of 38 Starlink satellites in February 2022
Authors: Kataoka Ryuho , Shiota Daikou , Fujiwara Hitoshi , Jin Hidekatsu , Tao Chihiro , Shinagawa Hiroyuki , Miyoshi Yasunobu 
Published: October 2022

The accidental reentry of 38 Starlink satellites occurred in early February 2022, associated with the occurrence of moderate magnetic storms. A poorly understood structure of Coronal Mass Ejections (CMEs) caused the magnetic storms at unexpected timing. Therefore, a better understanding of minor CME structures is necessary for the modern space weather forecast. During this event, the “up to 50%” enhancement of air drag force was observed at ~200 km altitude, preventing the satellites’ safety operations. Although the mass density enhancement predicted by the NRLMSIS2.0 empirical model is less than 25% under the present moderate magnetic storms, the real-time GAIA simulation showed a mass density enhancement of up to 50%. Further, the real-time GAIA simulation suggests that the actual thermospheric disturbances at 200 km altitude may occur with larger amplitude in a broader area than previously thought.
Lebensstilinterventionen bei älteren Menschen mit Adipositas:
Gründe, Barrieren und Unterstützungsbedarfe – eine
qualitative Studie
Authors: Görlitz Anja , Koching Mirjam , Torbahn Gabriel , Schoene Daniel , Volland-Schüssel Käte , Ströbele-Benschop Nanette , Kemmler Wolfgang , Volkert Dorothee , Kiesswetter Eva 
Published: October 2022

Zusammenfassung
Ziel der Studie Subjektive Gründe, Barrieren sowie
Unterstützungsbedarfe älterer Menschen mit Adipositas
hinsichtlich einer Gewichtsreduktion sind bisher wenig bekannt und wurden daher
in einer qualitativen Studie untersucht.
Methodik Leitfadengestützte, problemzentrierte Interviews wurden
mit 13 Teilnehmenden (selbständig,≥65 Jahre,
BMI≥30 kg/m²) geführt und mittels
strukturierender und zusammenfassender Inhaltsanalyse nach Mayring
ausgewertet.
Ergebnisse Fast alle Teilnehmenden nannten sowohl Gründe
für (n=5 Kategorien) als auch gegen eine Gewichtsreduktion
(n=6 Kategorien). Soziale Einflüsse und Gesundheitsprobleme
wurden beiden Bereichen zugeordnet. Weitere Gründe für eine
Gewichtsreduktion waren Ästhetik, innerer Druck und Partizipation,
weitere Gründe dagegen eine geringere Lebensqualität
während der Gewichtsreduktion, Zufriedenheit mit dem aktuellen Gewicht,
das Alter sowie Frustration/Resignation aufgrund
„gescheiterter“ Gewichtsreduktionen. Als Barrieren wurden
physiologische, intrinsische, umweltbezogene und hedonische Aspekte genannt.
Hinsichtlich der Gestaltung von Gewichtsreduktionsprogrammen
präferierten die Teilnehmenden Gruppenangebote, einfache
Maßnahmen und Angebote, die eine Tagesstrukturierung
unterstützen. Neben den inhaltliche Komponenten Ernährung,
Bewegung und Verhalten wurden Beratung durch Fachkräfte und medizinische
Betreuung als wichtig angesehen.
Schlussfolgerung Die Berücksichtigung der identifizierten
komplexen Gründe, Barrieren und Unterstützungsbedarfe, als
Schlüsselkomponenten für Motivation und Adhärenz,
könnte zum Erfolg von Lebensstilinterventionen bei älteren
Menschen mit Adipositas beitragen und die Wahl patientenzentrierter
Zielgrößen unterstützen.
Evaluation of Adnexal Masses: The IOTA Concept
Authors: Manegold-Brauer Gwendolin , Timmerman Dirk , Hoopmann Markus 
Published: October 2022

AbstractOvarian lesions have a wide range of sonomorphological features with numerous different underlying benign and malignant histologies. Based on the studies conducted by the International Ovarian Tumor Analysis (IOTA) group, ovarian masses can currently be reliably characterized by ultrasound. In the following article, we explain how to use the IOTA terms and definitions and we provide insight into how to safely triage patients with an ovarian mass.
Laparoscopic versus Open Incarcerated Inguinal Hernia Repair in Children: A Systematic Review and Meta-Analysis
Authors: Zubaidi Syukri Ahmad , Ezrien Don Evana , Chen Yong , Nah Shireen Anne 
Published: October 2022

Abstract
Background Laparoscopic hernia repair (LH) is reported to have superior outcomes in pediatric inguinal hernia repair, but its advantages in incarcerated inguinal hernia (IIH) are not defined. We compare the outcomes of LH versus open hernia repair (OH) for pediatric IIH.
Methods We performed a systematic review on all published analyses of LH versus OH for IIH. We identified studies published in 2000 to 2018 from Medline, PubMed, Embase, Google Scholar, and Cochrane databases. We included only studies that compared both surgical techniques on children aged 18 years or younger. Search terms were variations of “incarcerated inguinal hernia,” “hernia repair,” “laparoscopy,” and “child.” We categorized complications as major (testicular atrophy, ascending testis, recurrence, iatrogenic visceral injury) and minor (wound infection). Heterogeneity was assessed using I2; meta-analyses were performed using random- or fixed-effects models as appropriate. Weighted mean differences (WMDs) or odds ratios (ORs), with their corresponding 95% confidence intervals (CIs), were used for analysis of continuous and dichotomous variables, respectively. Significance level was at p-value less than 0.05.
Results Our initial search yielded 549 unique citations. Eight retrospective cohort (RC) studies (584 patients) were included in the final analysis (339 LH, 245 OH). Overall, major complications (eight RC; n = 584; OR = 0.38; 95% CI: 0.17–0.88; p = 0.02) were more common in OH. When each complication was assessed individually, there were no differences between groups. The length of hospital stay in the LH group was shorter than in the OH group (five RC; n = 418; WMD = − 1.39; 95% CI, −2.56 to −0.22; p = 0.02).
Conclusion Laparoscopic repair for IIH is associated with less major complications and shorter hospital stay, but data are limited due to the absence of randomized controlled trials.
Oral Antibiotics and Organ Space Infection after Appendectomy and Intravenous Antibiotics Therapy for Complicated Appendicitis in Children
Authors: Morita Kaori , Fujiogi Michimasa , Michihata Nobuaki , Matsui Hiroki , Fushimi Kiyohide , Yasunaga Hideo , Fujishiro Jun 
Published: October 2022

Abstract
Background There is little consensus regarding management after appendectomy for complicated appendicitis in children. Recent literature suggests that patients may be safely discharged without oral antibiotics after adequate intravenous antibiotics therapy. We conducted a nationwide retrospective cohort study comparing the proportion of postoperative organ space infection between patients discharged with and without oral antibiotics after appendectomy followed by intravenous antibiotics therapy for complicated appendicitis.
Methods Using the Diagnosis Procedure Combination database, we identified patients between 3 and 18 years of age who had undergone appendectomy for complicated appendicitis between July 2010 and March 2018. Propensity score–matched analyses were performed to compare outcomes between the groups with and without oral antibiotics. The primary outcome was readmission due to organ space infection within 60 days of discharge and the secondary outcome was 60-day readmission due to any reason. Additionally, we conducted a stabilized inversed probability of treatment weighting analysis as a sensitivity analysis.
Results We identified 13,100 eligible patients who had received oral antibiotics (n = 3,501) and who had not received oral antibiotics (n = 9,599). Propensity score matching created 2,769 pairs. Readmissions due to organ space infection were 3.4% and 5.2% in the nonusers and users of oral antibiotics, respectively (p = 0.007). The oral antibiotics users also had a significantly higher proportion of readmission due to any reason than the nonusers (5.5 vs. 7.4%, p = 0.004). The sensitivity analyses demonstrated consistent results.
Conclusion Among children who had undergone appendectomy for complicated appendicitis, oral antibiotics following discharge after adequate intravenous antibiotics therapy may increase organ space infection.
Surface Properties and Wear Resistance of Injectable and Computer-Aided Design/Computer Aided Manufacturing–Milled Resin Composite Thin Occlusal Veneers
Authors: Elsahn Nesrine A. , El-Damanhoury Hatem M. , Shirazi Zainab , Saleh Abdul Rahman M. 
Published: October 2022

Abstract
Objectives This study was conducted to investigate the microhardness, surface roughness (Ra), and wear behavior of thin occlusal veneers (TOV) fabricated from different injectable composite materials and compare them to a Computer-Aided Design (CAD)/Computer-Aided Manufacturing (CAM) resin-based material.
Materials and Methods A 1-mm occusal veneer preparation was done in a mandibular right second molar typodont tooth. The prepared model was duplicated to fabricate 32 replicas and divided into four groups (n = 8). Standard TOV were fabricated either indirectly from Cerasmart blocks, Cerasmart, GC (CS), or directly from Beautifil Injectable X, Shofu (BF), G-ænial Universal injectable, GC (GU), or SonicFill 2, Kerr (SF) using the injection molding technique. All the specimens were subjected to both thermomechanical cyclic loading (TMC) in a chewing simulator. Wear measurement was conducted by three-dimensional (3D) scanning of the veneered models before and after TMC, and the difference in the volume of the sample was recorded as the volumetric material loss due to wear. Ra before and after TMC and Vickers microhardness (VHN) of the tested materials were measured using standardized samples (n = 8). Representative samples from each group were investigated under a stereomicroscope and a scanning electron microscope.
Statistical Analysis One-way analysis of variance (ANOVA) was applied to detect the effect of material on VHN and wear. Two-way ANOVA was utilized to examine the impact of material and TMC on Ra. Multiple comparisons between the groups were conducted using Tukey's post hoc test (α = 0.05). The Pearson's correlation coefficient was used to determine the relationship between hardness and wear and between roughness and wear (α = 0.05).
Results CS exhibited the highest mean VHN (p ≤ 0.001), followed by GU and SF which were statistically similar (p = 0.883) but significantly higher than BF (p < 0.001). After TMC, GU revealed the lowest Ra and volumetric wear (VW), followed by CS, BF, and SF (p < 0.5). A highly significant correlation existed between Ra and VW (p = 0.001, R
2 = 0.9803).
Conclusion The effect of TMC on the surface properties and wear resistance of the investigated TOV is material-dependent. GU injectable TOV are less influenced by TMC than CS milled TOV. In contrast, BF and SF demonstrated significant VW and Ra which might limit their clinical use as TOV.
A Novel Palladium-Based Heterogeneous Catalyst for Tandem Annulation: A Strategy for Direct Synthesis of Acridones
Authors: Gerbino Darío C. , Steingruber H. Sebastián , Mendioroz Pamela , Castro M. Julia , Volpe María A. 
Published: October 2022

AbstractIn order to develop an efficient, rapid, and modular cascade strategy for the direct synthesis of acridones, palladium supported on sulfated alumina and microwave activation are employed. Multifunctional heterogeneous palladium catalysts were prepared in order to carry out the sequential annulation via a Buchwald–Hartwig amination followed by an intramolecular annulation in a one-pot process. This new protocol represents the first report on a catalytic tandem synthesis of acridone derivatives from commercially available starting materials, under ligand-free conditions. The scope of the present methodology is extended to the generation of a library of functionalized acridones, showing high functional group compatibility, in moderate to excellent yields. The applicability of this novel transformation was demonstrated by the concise total synthesis of the natural product arborinine.
Oral Manifestations: A Reliable Indicator for Undiagnosed Diabetes Mellitus Patients
Authors: Shahbaz Maliha , Kazmi Farhat , Majeed Hanna Abdul , Manzar Saadia , Qureshi Faiza Awais , Rashid Shahrayne 
Published: October 2022

Abstract
Objectives This article identifies undiagnosed DM (UDM) cases in the Pakistani population by perceiving the signs and symptoms of DM and associating them with oral manifestations.
Material and Methods In this cross-sectional study, patients showing at least three or more classical or warning signs like polydipsia, polyuria, polyphagia, and general weakness were considered UDM cases. Detailed oral examination for gingivitis, periodontitis, halitosis, xerostomia, and tongue manifestations was done followed by the hemoglobin A1c (HbA1c) analysis.
Results Out of 5,878 patients, 214 UDM cases were identified, where 31.8% and 39.7% of the patients were diagnosed as prediabetics and diabetics, respectively, based on HbA1c analysis. Prevalence of gingivitis (97.6%), fissured tongue (91.8%), generalized periodontitis (85.9%), thick saliva (87.1%), xerostomia (84.7%), burning mouth syndrome (63.5%), yellow discoloration of tongue (57.6%), and ecchymosis/ulcers (43.5%) were more in diabetics as compared to prediabetic patients and normal population.
Conclusion The oral manifestations can be crucial for identifying UDM cases. Dentists can play a pivotal role by taking detailed history and thorough oral examination. If three or more symptoms as concluded above are present, an HbA1c analysis should be conducted to prevent preop and postop complications associated with DM.
Potential Use of Hyperbaric Oxygen Therapy in Orthodontic Treatment: A Systematic Review of Animal Studies
Authors: Akbar Yun Mukmin , Maskoen Ani Melani , Mardiati Endah , Wandawa Ganesha , Setiawan Arlette Suzy 
Published: October 2022

AbstractUnderstanding the fundamental principles of tooth movement could reduce the duration of treatment and achieve a stable outcome, resulting in patient satisfaction. Hyperbaric oxygen therapy was a modality in which a patient inhaled 100% O2 while subjected to high atmospheric pressure. Hyperbaric oxygen therapy facilitated the supply of oxygen to the human body's organs and tissues and served a variety of applications, including patient care and wound treatment. This review article aimed to describe animal studies of the potential effects of hyperbaric oxygen therapy in orthodontic therapy. It was conducted using a systematic literature review method, including searching PubMed and Google Scholar for publications relevant to the research topics. The search was filtered to include only research on orthodontic treatment and hyperbaric oxygen therapy and was published in any year. Articles that did not specify biological components of orthodontic tooth movement (OTM) were excluded. The Preferred Reporting Items identified the papers for the Systematic Reviews and Meta-Analyses (PRISMA) strategy, which resulted in the selection of 11 publications. Hyperbaric oxygen therapy affected parameters of biomarkers representing the clinical, molecular, and cellular biology of bone formation and resorption in periodontal tissues in responding to orthodontic physical forces, including alkaline phosphatase, collagen synthesis, osteoblast, osteoclast, osteocyte, type I collagen, vascular endothelial growth factor, osteocalcin, fibroblast, matrix metalloproteinase-8, transforming growth factor-β, partial pressure of oxygen, partial pressure of carbon dioxide, trabecular bone density, and tooth mobility. Hyperbaric oxygen therapy induced an inflammatory response to follow OTM events during active orthodontic therapy. Hyperbaric oxygen therapy might play a role in the tissue healing process during passive treatment. Nonetheless, additional research should be conducted to establish the efficacy of hyperbaric oxygen therapy in orthodontics.
Effect of Visual Exposure versus Obstruction upon Patient's Quantitative and Qualitative Stress Parameters Changes during Minor Oral Surgery
Authors: Subramaniam Pram Kumar , Al-Ahmad Basma Ezzat Mustafa , Mustafa Nazih Shaban , Izhan Natasha Athirah Mohd , Shukor Nur Farah Izzati Ahmad 
Published: October 2022

Abstract
Objectives Dental anxiety is ultimately related to the fear of pain, more evidently seen in surgical dental procedures. This study aimed at comparing the stress parameter differences between patients undergoing minor oral surgery (MOS) with their eyes covered (closed) versus uncovered (open) at our center.
Materials and Methods Twenty-three MOS patients were draped with eyes covered, while another 23 MOS patients were draped with eyes uncovered. Stress parameters such as systolic and diastolic blood pressures (DBP), mean arterial pressure (MAP), heart rate, random blood glucose, and Spielberger State-Trait Anxiety Inventory (STAI)-6 questionnaire score were recorded accordingly in the different intervals; then statistically analyzed later.
Results Closed eyes patients had significantly lower mean DBP and MAP (73.91 ± 6.80/88.94 ± 6.88 mm Hg) as compared with open eyes patients intraoperatively. Though significant only in the postoperative phase, the closed eyes group had a relatively lower mean heart pulse rate than the open eyes group in all surgical intervals. Postoperatively, closed eyes patients had lower mean blood glucose level as compared with open eyes group. STAI mean score revealed a higher psychological stress for closed eyes patients versus open eyes patients.
Conclusion Closed eyes patients displayed lower quantifiable physiological stress level as compared with patients undergoing MOS draped with eyes uncovered. However, in qualitative psychological context, closed eyes draped MOS patients responded poorly as compared with opened eyes draped patients under similar surgical stress.
The Clinical Characteristics and Prognosis of Children Presenting with New Onset Refractory Status Epilepticus in COVID-19 Related Multisystem Inflammatory Syndrome
Authors: Das Suman , Chatterjee Kaushani , Mondal Gobinda , Paul Dilip Kumar , Mishra Lopamudra 
Published: October 2022

AbstractMultisystem inflammatory syndrome in children (MIS-C) is a hyperinflammatory process leading to multiorgan failure and shock, occurring during the acute or post-infectious stage of severe acute respiratory syndrome coronavirus (SARS-CoV-2), and has two subtypes: para-infectious and post-infectious varieties. The new onset of refractory status epilepticus has rarely been described as the presenting feature of MIS-C. This retrospective study, conducted at Dr. B.C. Roy Post Graduate Institute of Pediatric Sciences, included children hospitalized between August 1, 2020 and July 31, 2021, with new-onset refractory status epilepticus (NORSE) and subsequently diagnosed to have MIS-C. Their clinico-demographic variables, treatment courses during hospital stays, laboratory reports, radiological and electrophysiological findings, and outcomes at discharge and follow-up over 1 year were recorded. At their 12 month visits, their motor disabilities (primary) and continuation of anti-epileptic drugs, and persistence of magnetic resonance imaging (MRI) brain abnormalities (secondary) were the outcome measures. The characteristics of the patients in the para-infectious and post-infectious groups were compared using the Mann-Whitney U test for continuous variables and the Chi-square test for categorical variables. There were eight and 10 patients in groups A and B, respectively. Patients in group B had significantly higher age, more prolonged refractory status epilepticus (RSE), use of anesthetics and ventilation, and longer pediatric intensive care unit (PICU) stay, while other clinical and laboratory parameters and short and long-term outcomes were not significantly different between the two groups. Eight patients developed hemiparesis, while two had quadriparesis in the acute stage, but 15 (83%) patients had complete recovery from their motor deficits by 1 year. At 1-year follow-up, 33 and 39% of patients, respectively, had abnormal MRI and electroencephalogram (EEG). Acute disseminated encephalitis and acute leukoencephalopathy were the most commonly observed MRI abnormalities in the acute phase, with prolonged persistence of cerebritis in patients in the post-infectious group, warranting long-term immunomodulation. Combined immunotherapy with intravenous immunoglobulin and steroids was effective in the acute phase. However, long-term anti-epileptic therapy was needed in both groups.
Prevalence, Prevention, and Treatment of Work-Related Musculoskeletal Disorders Among Microsurgeons
Authors: Zhao Ruya , Rothchild Evan , Wang Fei , Nash David , Greige Nicolas , Lala Brittany , Ricci Joseph A. 
Published: October 2022

AbstractBackground While work related musculoskeletal disorders have been well recognized among all surgeons, and microsurgeons in particular; their prevention and treatment are presently unknown. Our study aims to define the impact of musculoskeletal ailments on microsurgeons and investigate trends in microsurgeon musculoskeletal injury treatment.Methods An electronic survey was sent to all members of the American Society of Reconstructive Microsurgery. The survey solicited surgeon demographics, microsurgical volume, equipment usage, history of musculoskeletal injury, impact of injury, and interventions / treatment modalities used to address / prevent these issues.Results Of the 883 microsurgeons surveyed, 203 responded (23% response rate). The average age was 45 years (IQR 39–52 years). Most microsurgeons were male (80.8%). Musculoskeletal injury or symptoms related to microsurgery were reported by 137 respondents (67.0%). Fifty surgeons (37.9%) reported that their musculoskeletal injury had adversely affected their practice. Formal medical intervention was sought by 53 respondents (26.1%), with 17 surgeons (8.4%) undergoing surgical intervention. Self-treated was used by 127 microsurgeons (62.6%) for musculoskeletal ailments. Preventative treatments such as strength training, stretching, yoga, massages, and diet were the most beneficial, each with utilization scores of 4 out of 5.Conclusion A majority of microsurgeons experience musculoskeletal injury, and some even require surgery to treat their musculoskeletal pathology. Prophylactic practices such as strength training, stretching, yoga, massages, and diet maintenance, are the superior treatment for musculoskeletal injury. Microsurgeons should incorporate training routines in their lives as injury prophylaxis to improve their career longevity and patient care.
A 3D printed sandwich-type piezoelectric motor with a surface texture
Authors: Liu Ruixuan , Li Xiaoniu , Yu De , Cao Teng , Cao Jia , Wang Boquan , Wu Dawei 
Published: October 2022

Polymer-based piezoelectric motors have excellent properties, such as lightweight and corrosion resistance. In addition, 3D printing and customized additive manufacturing of polymers provide new opportunities for the development of piezoelectric motors with complex or special structures. In this paper, a 3D printed polymer-based sandwich-type piezoelectric motor operating in a single longitudinal mode is developed. A vibration decomposition model of the motor and an analytical model considering polymer viscoelasticity are established to analyze the dynamic characteristics and to determine the geometric structure of the motor. To increase the coefficient of friction, a polymer surface texture is utilized on the contacts. The experimental results show that the friction coefficient of the contact tip with surface texture is about 0.16, which increased by 45.5% compared to a smooth surface. The resonance frequency is 28.648 kHz, and the maximum no-load speed under 300 Vp-p is 54 r/min. Our study shows the promise of polymer-based materials in the development of the piezoelectric motor.