bluuebunny/crossref_metadata_2025 huggingface dataset:
Three decades of unveiling the complex chemistry of C-nitroso species with computational chemistry
Authors: Bianchi Pauline , Monbaliu Jean-Christophe M.
Published: November 2021

This review revisits the complex reactivity of C-nitroso derivatives through the synergistic combination of computational and synthetic organic chemistry, with an emphasis on the rationalization of mechanisms and selectivities.
Self-driven dual hydrogen production system based on a bifunctional single-atomic Rh catalyst
Authors: Peng Xianyun , Mi Yuying , Liu Xijun , Sun Jiaqiang , Qiu Yuan , Zhang Shusheng , Ke Xiaoxing , Wang Xinzhong , Luo Jun
Published: November 2021

A self-powered dual hydrogen production system constructed by combining a Zn–H2 battery and an overall hydrazine splitting unit with Rh single atoms supported on oxygen-functionalized Ti3C2Ox bifunctional catalyst achieves a promising H2 generation rate of 45.77 mmol h−1.
Performance enhanced Metal‐Semiconductor‐Metal photodetector based on double‐layer ZnO nanorods
Authors: Chu Lingling , Xu Chao , Feng Bo , Nie Chao , Hu Yunxue
Published: November 2021

This study reports that photodetectors based on double‐layer ZnO nanorods grown on AZO seed layer by hydrothermal method. Compared with the photodetectors with single‐layer nanorods, the on/off ratio of the photodetectors with double‐layer ZnO nanorods is increased by ∼2.52 times, the photoresponsivity is increased ∼5.50 times, the sensitivity is increased ∼3.34 times and the response time was shortened by 0.97 and 6.65 s, respectively. Furthermore, the photocurrent derivative also shows that the photodetectors based on double‐layer ZnO nanorods has a faster response speed.
Research on rotor unbalance magnetic pull compensation method based on modular winding d‐axis current injection
Authors: Zhang Jiaxu , Zhang Bingyi , Feng Guihong
Published: November 2021

Due to the dual air‐gap topology of the direct‐drive permanent magnet motor with inner enhance force (IEF‐DDPMM), the radial EM exciting force generated in the inner and outer air gaps when the rotor is eccentric will act on the same rotor, and the unbalanced magnetic pull (UMP) on the rotor will reduce the fatigue life of the rotor structure and bring many problems such as vibration and noise. Therefore, the rotor UMP compensation method of IEF‐DDPMM based on modular winding d‐axis current injection is proposed to suppress the harm caused by eccentricity. The expression of electromagnetic (EM) exciting force considering the cogging effect and current time harmonic without rotor eccentricity faults is derived by the analytical method. Also, the EM exciting force newly introduced due to the rotor eccentricity is analysed. The effects of different eccentricity types on torque characteristics, the fatigue life of the rotor structure and stator vibration of IEF‐DDPMM are compared and analysed by the FEM. Finally, the IEF‐DDPMM rotor eccentricity models are optimised based on the method. The performance of the motor before and after rotor UMP compensation is evaluated by FEM. The results show that the proposed method is correct and effective.
Aggregate regulation strategy of distributed energy storage under power spot market in China
Authors: Li Peng , Ma Xiyuan , Chen Man , Tan Junfeng , Yang Ping , Zhao Zhuoli , Li Yuxuan , Liu Guogang , Liu Dong , Lai Loi Lei
Published: November 2021

The reform of power spot market in China provides a new profit mode, determining energy trading strategy based on the power spot prices for distributed energy storages. However, individually accessing every distributed energy storage to the dispatch centre results in a high cost and low efficiency, which needs to be improved by connecting through the aggregator. To this end, this paper proposes a regulation mode and strategy for distributed energy storages participating in energy trading through aggregation. First, the optimal centres of distributed energy storages are searched as the aggregation centres according to the electrical distance distributed by the energy storage, and the model of each distributed energy storage aggregation group is established. On this basis, the conditional value at risk (CVaR) method is introduced to quantify the income risk brought by the fluctuation of power spot prices, following with the optimization model for day‐ahead stage and real‐time stage. Finally, case studies under multiple scenarios of power spot market verify that the regulation mode and strategy can effectively guarantee the economic profits of distributed energy storages by setting aggregation groups and reasonable risk preference coefficients.
J1721+8842: a gravitationally lensed binary quasar with a proximate damped Lyman-α absorber
Authors: Lemon C. , Millon M. , Sluse D. , Courbin F. , Auger M. , Chan J. H. H. , Paic E. , Agnello A.
Published: November 2021

High-redshift binary quasars provide key insights into mergers and quasar activity, and are useful tools for probing the spatial kinematics and chemistry of galaxies along the line of sight. However, only three sub-10-kpc binaries have been confirmed above z = 1. Gravitational lensing would provide a way to easily resolve such binaries, study them in higher resolution, and provide more sightlines, though the required alignment with a massive foreground galaxy is rare. Through image deconvolution of StanCam Nordic Optical Telescope (NOT) monitoring data, we reveal two further point sources in the known, z ≈ 2.38, quadruply lensed quasar (quad) J1721+8842. An ALFOSC/NOT long-slit spectrum shows that the brighter of these two sources is a quasar with z = 2.369 ± 0.007 based on the C III] line, while the C III] redshift of the quad is z = 2.364 ± 0.003. Lens modelling using point-source positions rules out a single source model, favouring an isothermal lens mass profile with two quasar sources separated by ∼6.0 kpc (0.73″) in projection. Given the resolving ability from lensing and current lensed quasar statistics, this discovery suggests a large population of undiscovered, unlensed sub-10-kpc binaries. We also analyse spectra of two images of the quad, showing narrow Lyα emission within the trough of a proximate damped Lyman-α absorber (PDLA). An apparent mismatch between the continuum and narrow line flux ratios provides a new potential tool for simultaneously studying microlensing and the quasar host galaxy. Signs of the PDLA are also seen in the second source, but a deeper spectrum is still required to confirm this. Thanks to the multiple lines of sight from lensing and two quasar sources, this system offers simultaneous subparsec- and kiloparsec-scale probes of a PDLA.
Epidemiological profile of child victims of everyday life injuries versus road traffic accident
Authors: Boughaleb Fadoua , Mouad Assia , Aqqaoui Loubna , Zerhouni Hicham , Ettayebi Fouad , Oubejja Houda
Published: November 2021

Unintentional injuries (UI) correspond to “unplanned” events; they include everyday life injuries (EDL), road traffic accident (RTA) and work accidents. In our pediatric context, the latter are excluded. Aim: Draw up an epidemiological profile of UI in children hospitalized for at least 24 hours and make a comparison between EDL and RTA. Material and Methods: A cross-sectional study conducted during four years, about children hospitalized for UI, in the pediatric surgical emergency department (PSE) of the children's hospital of Rabat, Morocco. Sociodemographic and medical data were analyzed by statistical software (JAMOVI). Results: 545 files were retained. EDL represented 81.9 % with a male predominance (70.4%). The median age was 8 years [4; 12] with predominance of school children (63.5%). Infants predominated in EDL (15.1%). Spring has a predominance in RTA (33%), while there is a reversal of the trend for the other seasons (p<0.05). As regards the accident, the majority occurred on weekdays. The injured body parts were multiple for the RTA (39.1%) and affected the limbs (58.5%) for the EDL (p <0.05). Radiological abnormalities were found in 79.6% of cases in EDL. The 24-hour hospital stay was for EDL (66.7%) while RTA is hospitalized beyond 48 hours (53.7%).
Health vigilance concerning female urinary tract infections: Epidemiological profile and antibiotic resistance
Authors: Farih Soumaia , Saddari Abderrazak , Noussaiba Benhamza , Araab Adnane , Yacoubi Loubna , Benaissa Elmostapha , Ben Lahlou Yassine , Maleb Adil , Elouennass Mostafa
Published: November 2021

The objectives of our work were to establish the epidemiological and bacteriological profile of female urinary tract infection at the Mohammed VI University Hospital of Oujda (Morocco), and then to study the drug resistance of the bacterial strains isolated. This is a retrospective study over 36 months including urine samples from patients hospitalized or consulting at the CHU Mohamed VI of Oujda (Morocco). Urines were processed according to the recommendations of the Medical Microbiology Reference (REMIC) and the EUCAST (European Committee on Antimicrobial Susceptibility Testing).

We collected 12556 requests for CBEU from different departments. At the top of the list was the emergency department with a rate of 37% (n= 4666) followed by outpatient clinics (33.1%; n=4226). 5% (n=630) of the CBEU were positive. Escherichia coli (E. coli ) dominated the epidemiological profile with a rate of 72.50% (n=482). E. coli was resistant to penicillins in 69.50% (n=299) of cases, protected penicillins in 34.80% (n=149), third generation cephalosporins (C3G) in 9% (n=38), fluoroquinolones in 17.5% (n=73), Trimethoprim-Sulfamethoxazole in 46% (n=196) of cases and gentamicin in 12% (n=51) of cases. None of the strains were resistant to carbapenems.

Awareness-raising on the proper use of antibiotics, issuing national recommendations for the treatment of urinary tract infections in order to standardize therapeutic regimens. Effective control of these infections requires a global prevention strategy that implies close collaboration between epidemiologists, clinicians, bacteriologists, hygienists and the health care team.
Pharmacovigilance in Covid-19 vaccines
Authors: Bahouq Hanane , Bahouq Madiha , Soulaymani Abdelmajid , Soulaymani-Bencheikh Rachida
Published: November 2021

The ongoing pandemic coronavirus disease of 2019 (COVID-19), originated from Wuhan, China, has caused universal challenging and threatening with considerable health impact and economic losses. Therefore, vaccination, as preventive and protective medical countermeasure, remains an excellent issue for reducing morbidity and mortality of this emerging infectious disease. As of April 2021 and by Emergency Use Authorization (EUA) process, 16 vaccines were authorized by at least one national regulatory authority for public use: two Ribonucleic Acid (RNA) vaccines (Pfizer–BioNTech and Moderna), seven conventional inactivated vaccines (BBIBP-CorV manufactured by Siinopharm, CoronaVac, Covaxin, WIBP-CorV, CoviVac, Minhai-Kangtai and QazVac), five viral vector vaccines (Sputnik Light, Sputnik V, Oxford–AstraZeneca, Convidecia, and Johnson & Johnson) and two protein subunit vaccines (EpiVacCorona and RBD-Dimer). As other countries, Morocco has established an anti-COVID-19 vaccine strategy in order to effectively contribute to the monitoring of vaccine safety supported by the national platform health vigilance and regulated by the National Anti-Poison and Pharmacovigilance Center (CAPM). In this review, we recorded the main current developed COVID-19 vaccines and discussed pharmacovigilance strategies and tools related safety and tolerability of those therapies. In parallel, a review of the Moroccan experience in this field is also conducted.
Physical inactivity, sedentary habits and eating habits among Moroccan adolescents
Authors: El Oirdi Hamid , Bouziani Amina , El Oirdi Aziz , Mostyafi Jaouad , Hamrani Abdeslam , El Kharrim Khadija , Belghyti Idriss
Published: November 2021

In Morocco, noncommunicable diseases were responsible for 80% of all deaths in 2016. These risk factors are closely related to diet and physical activity. Therefore, this study aims to determine the prevalence of physical activity, sedentary behaviors and eating habits among a sample of Moroccan adolescents aged 14 to 19 years.This is a cross-sectional study involving a sample of 669 (285 boys and 384 girls) recruited during the year 2019 in the Province of Sidi Kacem-Morocco. Data on sedentary behaviors, physical activity and eating habits were collected using a validated questionnaire. Overall, 38% of Moroccan adolescents did not meet the recommended duration of one hour of moderate-intensity physical activity, boys are generally more active than girls (p<0.00), and 36% of adolescents reported watching TV for more than 2 hours/day and 42% used a computer for a similar period. Girls are more sedentary than boys (p=0.005). For eating habits, there were significantly more boys than girls who met the recommended scores for healthier foods, but there were significantly more girls than boys who exceeded the score of three days of intake per week for unhealthiest foods. The prevalence of sedentary behavior, physical inactivity and unhealthy eating habits appear to be moderately high, but physical and nutritional education programs are needed to promote an active living and a healthy eating.
Burnout among call center staff in the Rabat Sale Kenitra Region
Authors: Drissi E. , Boulbaroud S. , Hami H. , Ahami A. , Azzaoui F-Z.
Published: November 2021

In Morocco, burnout remains a syndrome that is very little managed, but which nevertheless remains present and significantly affects the aids professions such as call center’s teleadvisors. The aim is to study burnout among call center staff in the Rabat, Sale and Kenitra Region using Maslash's three-dimensional model by detecting the socioeconomic factors that influence it. This study involved 121 individuals (59 men and 62 women) who responded to the MBI and to an informative questionary developed by us. The subjects have a minimum age of 22 years and a maximum age of 60 years and an average age of 31.74± 7.93.On the one hand, 13 subjects (10.74%) have a high risk of burnout, high scores of emotional exhaustion and depersonalization, and low personal achievement. The results of the gender impact were not significant. On the other hand, burnout is rarer in older age groups, which suggests that the experience of age would have a protective effect. Spirituality and sport could also have a protective effect. Burnout, very common in the aid professions, must be prevented in companies screened and taken care of by mental health professionals.
Vitamin A intake in school-aged children in Draa-Tafilalet oasis regions, southeastern of Morocco
Authors: Azekour Karima , Dadda Sakhr , Sebbari Fouzia , El Bouhali Bachir
Published: November 2021

Vitamin A has several important functions such as preventing childhood blindness and strengthening the immune system against common diseases in children. The purpose of the present work was to assess the nutritional intake of vitamin A in oasis school-age children. A cross-sectional survey was carried out among children enrolled in public primary education establishments. 4244 school-aged children were randomly selected to take part in the study. Data on dietary vitamin A intake was assessed by the 24-hour dietary recall. Socio-economic characteristics were got using an appropriate questionnaire. Over the entire sample, the median vitamin A intake was around 409.3 μg for girls and 294.5 μg for boys. The prevalence of insufficient vitamin A intake was observed in 58.3%. The prevalence of inadequate intake according to socio-demographic and economic characteristics shows girls tend to develop vitamin A deficiency compared to boys. Children from urban areas show significant percentages of inadequacy. School-aged children with illiterate parents with low monthly income were identified as at risk of having insufficient dietary intake of vitamin A. In conclusion, we have revealed an important level of inadequacy for vitamin A in the overall processed results that must be considered.
Tracking: emergency method or health vigilance in the retention of patients living with HIV/AIDS?
Authors: Lallié Hermann-Désiré , Dakoury Nicole , Nekkal Nesma , El Hattimy Faiçal , Komena Eric , Messou Eugène , Touré Siaka
Published: November 2021

There were 1.7 million HIV/AIDS-related deaths worldwide. The low retention of patients in care was a hindrance to their treatment. The objective of this study was to establish the epidemiological profile of patients, to implement “tracking” and to evaluate its effectiveness. This is a descriptive and analytical retrospective study of all patients living with HIV/AIDS enrolled from 2004 to 2012 by the non-governmental organization ACONDA-VSCI. It consisted of a series of phone calls and home visits. Results showed that 71% of the 51.703 patients enrolled were female with a sex-ratio (F/M) of 2.5. The average age of patients was 33±13 years. 47% of the patients enrolled had an unknown vital status in 2011 and only 42% of them had a telephone number. In addition, 11% of patients with unknown vital status were contacted and reintegrated into the care system. Multivariate regression analysis showed that the lack of awareness of status in patients was related to elevated CD4s, and having spent more than three years in a health center. On the other hand, being in a relationship and living in a rural area was a protective factor against the lack of knowledge of status. At the end of this study, it appears that the tracking method is an excellent method of combating the loss of sight of patients. However, it must be carried out routinely as a method of health vigilance and not a health emergency.
Technology of Natural Biocorrectors from Seafood Processing Waste
Authors: Bogdanov V.D. , Simdyankin A.A. , Pankina A.V.
Published: November 2021

Biocorrectors are dry concentrates from natural raw sources with high nutritional value due to the high content of important chemical components of food, including essential, minor, and biologically active nutrients. The raw material for the production of natural biocorrectors can be waste from cutting the fish and animal products. It is promising to use the skin of an octopus, the weight of which during cutting is up to 37% of the weight of raw materials, Pacific herring milt, which is formed during cutting in an amount of up to 12.4% of the weight of raw materials, and bivalve mantle mollusk of Primorsky scallop, accounting for about 10% of its mass. The goal of the research is to obtain dry food concentrates from seafood waste that exhibit functional properties. To preserve and form the specific properties of finished products, namely high biological value, digestibility, organoleptic indicators of concentrates, low-processing temperatures (cryotechnology) were used, which maximally preserved the composition, structure and other natural properties of raw materials. The dry seafood concentrates obtained by cryogenic technology exhibit high functionality and can be used as biocorrectors of food in order to impart high nutritional and biological value to it due to the balance of microand macronutrients.
Some Approaches to Developing a Test Method for Determining the Actual Fire Resistance Limit of Façade Translucent Structures
Authors: Eremina Tatiana , Korol’chenko Dmitry , Vasiliev Mikhail , Tanklevskiy Leonid , Eremin Mikhail
Published: November 2021

Based on the analysis of modern construction of high-rise buildings with façade translucent structures (FTS), it was established that the actual fire resistance limit of FTS for high-rise buildings should be assessed. The criterion for loss of fire resistance of a translucent façade is the collapse or fall-out of fragments of the translucent façade filling that contribute to the spread of fire in the building. By analyzing the experience of tests carried out fragments of buildings with FTS with simulated thermal and/or fire (flame torch) effects, the following factors are taken into account: wind loads with variable directions of air flows; access of fire-fighting and rescue units, etc. During full-scale FTS tests, a possible scenario of fire development is simulated, taking into account the fragment and features of the specimen, the fire load that affects the development of fire along the façade, the structural design of the FTS, – glass (conventional and fireresistant) and structural elements. The authors suggest that in order to ensure fire safety of high-rise buildings with FTS the fire-resistance limit assessment should be carried out on fragments of buildings with a simulation of thermal and/or fire impact, which is close to the real conditions.
Analysis of Liquid Piston Compressibility in the Two-Stage Hybrid Positive-Displacement Machine
Authors: Shcherba V. E. , Zanin A. V. , Pavlyuchenko E. A.
Published: November 2021

The effect of liquid compressibility in the two-stage piston hybrid positive-displacement machine with a liquid piston was considered. Based on the volume conservation equation, we developed a calculus methodology for the liquid compressibility during gas compression in the second stage of the compressor section. A numerical experiment made it possible to establish that some parameters have the greatest effect on the relative decrease in the height and velocity of the liquid layer. These parameters are the degree of pressure ratio; pipeline length; the polytropic index of the compression; the number of crankshaft revolutions. We found that the relative decrease in the liquid layer height is within 1 %, and the relative decrease in the liquid piston velocity is within 5 %. The paper analyses the liquid piston compressibility influence on the thermodynamic efficiency of the compression process and compressor performance.
Effects of an Impeller Rim and Radial Clearance on Energy Characteristics of an Axial Pump
Authors: Svoboda D. G. , Golikov V. A. , Zharkovskii A. A. , Klyuyev A. A.
Published: November 2021

The results of numerical and experimental research conducted in the Laboratory for Hydraulic Machinery Construction of Peter the Great St. Petersburg Polytechnic University are presented. The research is aimed at studying the effects of an impeller radial clearance and rim on the energy characteristic of low-pressure axial pumps of the specific speed ns≈600. It is shown that these design features of a flow duct have significant effects on stage parameters, and they have to be accounted for when verifying design and experimental characteristics of axial pumps.
Aufbaukuren
Authors: Steinbach Johannes E. , Stern Cornelia , Nebel Gudrun , Dichtl Karoline
Published: November 2021

Vier Experten stellen Aufbaukuren mithilfe von Komplexmitteln, der Gemmotherapie, Mikronährstoffen und Schüßler-Salzen.
Aufbau vor Ausleitung
Authors: Jahn Claus
Published: November 2021

Entgiftungskonzepte sind in der Naturheilkunde unverzichtbar. Die Therapie kann jedoch unwirksam sein oder sogar Schaden anrichten, wenn der Organismus nicht bereit ist zum Entgiften. Mit gezielter Anamnese und Diagnose können Behandelnde herausfinden, ob vor der Entgiftung eine allgemeine und/oder spezifische Aufbautherapie notwendig ist. Neben Präparaten für zum Beispiel die Stärkung einzelner Organe kommen für eine Aufbautherapie unter anderem Segmentbehandlungen und Lebensstiländerungen infrage.
Does the Implementation of the PRO-IMPLANT Foundation Treatment Algorithm Improve the Outcome of Chronic Periprosthetic Knee Infections? Mid-Term Results of a
Prospective Study
Authors: Hanusrichter Yannik , Frieler Sven , Gessmann Jan , Schulte Martin , Krejczy Martin , Schildhauer Thomas , Baecker Hinnerk
Published: November 2021

Background Several treatment options for chronic periprosthetic joint infections have been published in the current literature, with an on-going discussion to determine effective
management algorithms.

Objectives To compare outcomes of the two-stage exchange procedure in revision TKA prior to and after implementation of the PRO-IMPLANT Foundation treatment algorithm. The primary
endpoints were defined as (i) revisions during the interval time, (ii) duration of the interval time and (iii) successful PJI eradication.

Material and Methods Between 02/2013 and 09/2016, 122 patients were included in a single-centre cohort analysis. 55 patients were treated according to the previously used algorithm
(K1) and 67 according to the PRO-IMPLANT Foundation algorithm (K2). A minimum follow-up period of 3 years was set as the inclusion criterion. Successful eradication of infection was defined
in accordance with the consensus criteria by Diaz-Ledezma et al.

Results Successful eradication was achieved in 42 (67%) patients in K1 and 47 (85.5%) in K2 (p ≤ 0.005). The mean interval time was 88 days (range 51 – 353) in K1 and 52 days (range
42 – 126) in K2 (p ≤ 0.005). In K1, a mean of 0.8 (range 0 – 6) revisions were necessary during the interval period compared with 0.5 (range 0 – 4) in K2 (p = 0.066).

Conclusion Implementation of the PRO-IMPLANT treatment algorithm led to significant improvement in the outcome of periprosthetic joint infections. During mid-term follow-up,
infection eradication was highly successful, with decreases in the interval time as well as the number of revisions.
Thorax in osteopathischer Hand
Authors: Heller Rainer
Published: November 2021

Die Akupunktur der TCM wirkt einerseits auf die lokale Region der Nadelposition.
Andererseits soll Akupunktur auch entlang innerer Leitbahnverläufe
Effekte haben. Analog dazu kennt die osteopathische Medizin die parietale und
die viszerale Osteopathie. Es werden Parallelen bezüglich der
komplementären Vorstellungshorizonte der ganzheitlichen Systeme der
osteopathischen Medizin und der TCM gezogen. Die Besonderheiten der Anatomie der
Thoraxorgane bezüglich ihrer osteopathischen Bedeutung werden erarbeitet
und ausgewählte Schlüsseltechniken am Thorax vorgestellt.
Kontrastmittelgabe bei Niereninsuffizienz – praktische Handlungsempfehlungen
Authors: Pein Ulrich , Fritz Annekathrin , Markau Silke , Wohlgemuth Walter A. , Girndt Matthias
Published: November 2021

Noch immer sorgt die Kontrastmittelgabe bei Patienten mit Niereninsuffizienz für regelmäßige Diskussionen im klinischen Alltag. Sowohl Röntgen- als auch MR-Kontrastmittel werden überwiegend renal eliminiert und sind somit eng an die Nierenfunktion gekoppelt. Basis der Risikostratifizierung vor Kontrastmittelgabe ist die Bestimmung der eGFR. Patienten mit einer eGFR ≥ 30 ml/min benötigen eine individuelle Risikobeurteilung. Bei fortgeschrittener Niereninsuffizienz liegt das Hauptaugenmerk auf der Gewährleistung der Euvolämie. Evidenz für anderweitige Präventionsansätze findet sich aktuell nicht, weitere spezifische Maßnahmen zur Prävention einer Kontrastmittel-assoziierten Nierenschädigung sind bei heutigen Kontrastmitteln somit nicht angezeigt. Eine zeitliche Abstimmung von Kontrastmittelgabe und Dialysesitzung bei terminaler Niereninsuffizienz ist nur nach Kontrastmittel-gestützten MRT-Untersuchungen zu beachten. Eine Sonderrolle stellt nach wie vor die akute Nierenschädigung dar.
Der Einfluss von Bindungsmerkmalen und erkrankungsspezifischen Prädiktoren auf die gesundheitsbezogene Lebensqualität von älteren Patienten und Patientinnen mit Multimorbidität
Authors: Schmücker Katja , Strauß Bernhard , Tiesler Fabian , Schneider Nico , Gensichen Jochen , Brenk-Franz Katja
Published: November 2021

Ziel der Studie Untersuchung der Einflussfaktoren auf die psychische und körperliche Lebensqualität bei älteren, multimorbiden Patientinnen und Patienten ab 50 Jahren in Hausarztpraxen.

Methodik 219 Patienten mit multiplen chronischen Erkrankungen wurden zu Lebensqualität, Bindung, Depression und dem Gesundheitszustand zu Baseline und Follow-up nach 12 Monaten untersucht. Multivariate Analysen wurden durchgeführt, um potenzielle Prädiktoren zu identifizieren.

Ergebnisse Depression, Alter und die bindungsbezogene Vermeidung hatten einen negativen, der Gesundheitszustand einen positiven Einfluss auf die körperbezogene Lebensqualität. Die psychische Lebensqualität wurde negativ durch die bindungsbezogene Angst und Depression beeinflusst. Relevante Prädiktoren, welche die Lebensqualität in einem Jahr vorhersagen konnten, waren der Gesundheitszustand, Depression und Bindungsangst.

Schlussfolgerung Zur Erhaltung der Lebensqualität sollten bei multimorbiden Patienten die mentale Gesundheit und die Bindungsbedürfnisse der Patienten berücksichtigt werden.
Is Coronal Restoration a Predictor of Posttreatment Apical Periodontitis?
Authors: Persic Bukmir Romana , Paljevic Ema , Vidas Jelena , Glazar Irena , Pezelj-Ribaric Sonja , Brekalo Prso Ivana
Published: November 2021

Objectives To investigate the posttreatment apical periodontitis (AP) in endodontically treated teeth through a multivariate approach and to analyze the relative importance of quality and type of coronal restoration as predictors of periapical disease.

Materials and Methods The present study sample was drawn within 2-year period from the 1,072 consecutive patients older than 18 years, first time attending the Dental Clinic of the Clinical Hospital Center Rijeka, Croatia. A total of 1,350 endodontically treated teeth were included in the study. For each tooth, the periapical status, root filling quality, intracanal post, separated file presence, marginal bone loss, and quality and type of coronal restoration were recorded.

Statistical Analysis Chi-square tests were used to analyze the variations in the periapical status, quality of root canal filling, and quality of coronal restoration in different tooth types. The effect of explanatory variables on periapical status was explored using univariate and multivariate logistic regression models. The outcome variable was set as the presence versus absence of AP in the tooth.

Results Multivariate logistic regression analysis revealed statistically significant associations and increased risk for AP presence in molars (odds ratio [OR] = 2.15; p < 0.001), teeth positioned in mandible (OR = 1.49; p = 0.007), teeth with short length of root filling (OR = 4.08; p < 0.001), overfilled teeth (OR = 2.99; p = 0.001), and teeth with inadequate density of root filling (OR = 4.14; p < 0.001). Considering variables related to coronal restoration, neither coronal restoration type nor quality was found to be predictive for posttreatment AP. Merely, the presence of intracanal post significantly increased the odds of AP presence (OR = 1.57; p = 0.009).

Conclusion The results of the present study did not indicate that type or quality of coronal restoration may be predictors of posttreatment AP. Periapical disease was significantly associated with molars, mandibular teeth, substandard quality of root fillings, and intracanal post presence.
Papillary Carcinoma: A Rare Cause of Cutaneous Lesion on Dorsum of Nose
Authors: Sahoo Soumick Ranjan , Sarma Mandira
Published: November 2021

The skin of the nose is a common site for various benign and malignant lesions. Herein, we report a cutaneous nodular lesion on the dorsum of the nose in an 80-year-old female, which was surgically excised under local anesthesia. On histopathological examination, she was diagnosed with papillary carcinoma, a very rare disorder at such a location. The patient was followed-up and no recurrence was noted.
Infantile Systemic Hyalinosis Presenting as Pseudo-Paralysis in Infancy: Study of Six Cases
Authors: Gowda Vykuntaraju K. , Srinivas Sahana M. , Gupta Priya , Srinivasan Varunvenkat M. , Shivappa Sanjay K. , Vishwanathan Gurudatta B.
Published: November 2021

Infantile systemic hyalinosis is a very rare fatal autosomal recessive genetic disorder with a mutation in capillary morphogenesis gene-2-CMG2/Human anthrax toxin-2 ANTXR2 resulting in spindle cell proliferation, altered collagen metabolism along with extensive deposition of hyaline material in the skin and several tissues. To date only a few cases have been reported in the literature, hence we reported this series. This study is a retrospective chart review of infants diagnosed with infantile systemic hyalinosis from January 2015 through December 2020 at a tertiary care children's hospital in South India. The mean age of presentation was 9.4 months, with a male to female ratio of 1:5. All children were born of consanguineous marriage except one child. All children had symptoms at birth, painful limb movements, multiple joint stiffness, gingival thickening, skin lesions around perianal, perioral areas, and frog-like position. Three (50%) children had stiff skin. Routine tests including complete blood count, liver function test, renal function test, creatine phosphokinase, nerve conduction studies, and metabolic tests were normal in all children. Skin biopsy showed hyalinized collagenous tissue in the dermis. Genetic study results of two cases revealed pathogenic variants in ANTXR2 gene. Infantile systemic hyalinosis should be considered in infants presenting with painful limb movements. The diagnosis helped in avoiding unnecessary investigations and prognostications. The genetic information from proband mutation helped in prenatal diagnosis in two families.
Investigation of Genetic Alterations in Congenital Heart Diseases in Prenatal Period
Authors: Atli Emine Ikbal , Atli Engin , Yalcintepe Sinem , Demir Selma , Kalkan Rasime , Akurut Cisem , Ozen Yasemin , Gurkan Hakan
Published: November 2021

The prenatal diagnosis of congenital heart disease (CHD) is important because of mortality risk. The onset of CHD varies, and depending on the malformation type, the risk of aneuploidy is changed. To identify possible genetic alterations in CHD, G-banding, chromosomal microarray or if needed DNA mutation analysis and direct sequence analysis should be planned.

In present study, to identify genetic alterations, cell culture, karyotype analysis, and single nucleotide polymorphism, array analyses were conducted on a total 950 samples. Interventional prenatal genetic examination was performed on 23 (2, 4%, 23/950) fetal CHD cases. Chromosomal abnormalities were detected in 5 out of 23 cases (21, 7%). Detected chromosomal abnormalities were 10q23.2 deletion, trisomy 18, 8p22.3-p23.2 deletion, 8q21.3-q24.3 duplication, 11q24.2q24.5 (9 Mb) deletion, and 8p22p12 (16.8 Mb) deletion. Our study highlights the importance of genetic testing in CHD.
VEGFA rs3025020 Polymorphism Contributes to CALR-Mutation Susceptibility and Is Associated with Low Risk of Deep Vein Thrombosis in Primary Myelofibrosis
Authors: Villani Laura , Rosti Vittorio , Massa Margherita , Campanelli Rita , Catarsi Paolo , Carolei Adriana , Abbà Carlotta , de Silvstri Annalisa , Gale Robert Peter , Barosi Giovanni
Published: November 2021

Background Single nucleotide polymorphisms (SNPs) in vascular endothelial growth factor A (VEGFA) are associated with susceptibility to several diseases including cancer. Correlations between VEGFA rs3025020 genotypes with clinical and laboratory features of primary myelofibrosis (PMF) are unstudied.

Methods DNA was analyzed by real-time polymerase chain reaction for VEGFA rs3025020 genotypes in a cohort of 844 subjects with PMF and in two cohorts of normal subjects (N = 247 and N = 107).

Results Frequency of rs3025020 minor allele (T) was not significantly different in subjects with PMF compared with normals; however, the T-allele was more frequent in PMF subjects with a calreticulin (CALR)-mutated genotype compared with normals (35 vs. 27%; OR = 1.47 [95% CI, 1.09, 1.98] p = 0.011), especially in subjects with a CALR-type 2/type 2-like mutation (43 vs. 27%; OR = 2.01 [1.25, 3.24] p = 0.004). CALR mutants with the rs3025020 TT genotype had higher CXCR4 expression on CD34-positive blood cells, and those who carried CT/TT genotypes had lower platelet concentrations compared with other genotypes at diagnosis. Overall, subjects with the rs3025020 CT/TT genotype had a lower cumulative incidence of deep vein thrombosis in typical sites (1.6 vs. 4.2%; OR = 0.37 [0.15, 0.90] p = 0.029) and longer interval from diagnosis to first thrombosis (HR = 0.37 [0.14, 0.95] p = 0.039).

Conclusion Persons with PMF and the VEGFA rs3025020 minor T-allele are more likely to have a CALR mutation compared with other somatic driver mutations and lower cumulative incidence and hazard for deep vein thrombosis in typical sites.
Roll-to-roll manufacturing toward lab-to-fab-translation of perovskite solar cells
Authors: Yang Tae-Youl , Kim Young Yun , Seo Jangwon
Published: November 2021

Perovskite solar cells (PSCs) are emerging next-generation photovoltaics, and some breakthroughs for the commercialization have been rapidly made. To develop the technologies for large-area modules, economically feasible fabrication using a roll-to-roll (R2R) solution process may be the ultimate target for the fabrication of PSCs. In order to achieve successful R2R production of PSCs, however, several issues still need to be addressed. Roll-based continuous and scalable deposition of perovskite and charge transporting layers on a flexible substrate needs to be developed to obtain high-quality R2R-processed PSCs. There are also critical factors involved in accomplishing R2R fabrication: heat treatment at low temperature and a short processing time over the whole process with industrial-compatible methods. We briefly discuss this perspective: scalable deposition of layers, considerations for the R2R process, and progress and challenges in the R2R fabrication of the PSCs.
Weak antilocalization in topological crystalline insulator SnTe films deposited using amorphous seeding on SrTiO3
Authors: Albright Stephen D. , Zou Ke , Walker Frederick J. , Ahn Charles H.
Published: November 2021

Topological crystalline insulators (TCIs) promise spin-polarized or dissipationless transport, which can be controlled by crystal symmetry breaking through applied strain or electric field. To realize TCI devices with gate-controlled topological states, it is necessary to develop methods for depositing continuous and thin TCI films on substrates suitable for electric-field gating. Here, we present an optimized templating procedure for depositing single-orientation, continuous films of TCI SnTe on SrTiO3, which is an oxide with a wide bandgap and large dielectric constant suitable for gated devices. This process takes advantage of a thin SnTe template layer crystallized after amorphous deposition, with additional SnTe being grown by molecular beam epitaxy and monitored with in situ laser ellipsometry. Continuous, single-phase SnTe films with a (001) orientation relative to the SrTiO3 lattice are achieved. Magnetoconductivity measurements of SnTe films reveal a coexistence of weak antilocalization, consistent with topologically non-trivial states, and weak localization, consistent with trivial states from the bulk. This method of analysis may be suitable to analyze the magnetotransport characteristics of any topological material with carriers in both topological and trivial bulk states. The maximum phase coherence length is achieved for films thicker than 20 unit cells, which could be used for gated-SnTe devices.
Manipulation of crystalline structure, magnetic performance, and topological feature in Mn3Ge films
Authors: Wang Xiaolei , Zhang Chen , Yang Qianqian , Liu Lei , Pan Dong , Chen Xue , Deng Jinxiang , Zhai Tianrui , Deng Hui-Xiong
Published: November 2021

The Mn3X (where X = Ga, Ge, Sn, etc.) compounds have appealing prospects for spintronic applications due to their various crystal structures and magnetic properties for the design of reliable high-density memories. However, controlled growth of high-quality Mn3X thin films remains challenging in material science. Here, we reported the controlled film growth of Heusler alloy Mn3Ge, which could crystallize in respective tetragonal and hexagonal structures. The tetragonal D022-type Mn3Ge film exhibits strong perpendicular ferromagnetic anisotropy, while the hexagonal D019-type Mn3Ge film indicates non-collinear triangular antiferromagnetic order. From our experimental observations of structure characterizations, magnetic properties, anomalous Hall effect, and magnetoresistance measurements, we realized the manipulation of spin orientations and topological features. Majority/minority spin polarized Fermi surface and density of states of both tetragonal and hexagonal Mn3Ge structures were investigated by density functional theory calculations. Our work not only opens up technology routes toward the development of Mn3X-based devices for applications in topological spintronics and spin-torque memories but also leads to engineer the physical properties for fundamental study.
Examining social class and multilingualism through the Linguistic Landscape
Authors: Lu Xinyue , Martens Bethany , Sayer Peter
Published: November 2021

This article presents a methodological proposal for using the Linguistic Landscape (LL) to examine the intersection of
multilingualism and social class in urban settings. The article draws from a study that considered how patterns of linguistic diversity in
public signage in a mid-sized US city mapped onto socioeconomic levels. The main innovation for LL methodology is the study’s use of census
data and geographic information system (GIS) to increase representativeness using two main constructs (social class and linguistic
diversity). After presenting the project design, the challenge of creating representative mapping in the LL is considered, with the
solutions the research team generated. Finally, we discuss several practical issues specific to doing LL fieldwork in urban contexts:
access, safety, and photography.
Non-Hermitian Weyl semimetals: Non-Hermitian skin effect and non-Bloch bulk–boundary correspondence
Authors: Yang Xiaosen , Cao Yang , Zhai Yunjia
Published: November 2021

We investigate novel features of three-dimensional non-Hermitian Weyl semimetals, paying special attention to the unconventional bulk–boundary correspondence. We use the non-Bloch Chern numbers as the tool to obtain the topological phase diagram, which is also confirmed by the energy spectra from our numerical results. It is shown that, in sharp contrast to Hermitian systems, the conventional (Bloch) bulk–boundary correspondence breaks down in non-Hermitian topological semimetals, which is caused by the non-Hermitian skin effect. We establish the non-Bloch bulk–boundary correspondence for non-Hermitian Weyl semimetals: the topological edge modes are determined by the non-Bloch Chern number of the bulk bands. Moreover, these topological edge modes can manifest as the unidirectional edge motion, and their signatures are consistent with the non-Bloch bulk–boundary correspondence. Our work establishes the non-Bloch bulk–boundary correspondence for non-Hermitian topological semimetals.
A multi-frequency circularly polarized metasurface antenna array based on quarter-mode substrate integrated waveguide for sub-6 applications
Authors: Bai Hao , Wang Guang-Ming , Zou Xiao-Jun , Xie Peng , Shi Yi-Ping
Published: November 2021

A miniaturized multi-frequency circularly polarized array is designed in this paper. The antenna array is composed of three independent sub-arrays employing modified quarter-mode substrate ntegrated aveguide (QMSIW) to achieve three circularly polarized frequency bands. By introducing strip-slot, the impedance bandwidth of the antenna array is broadened while the dimension is decreased by 75% to realize miniaturization. Meanwhile, metasurface causes the impedance bandwidth of the sub-array to be further enhanced. Moreover, the metal vias are employed in the antenna array design to further achieve miniaturization. The antenna array is manufactured and measured to verify the design. Both the measured and simulated results display that the array achieves the impedance bandwidths of 10%, 11.7%, and 14.8% and axial ratio bandwidths of 8.8%, 8.0%, and 8.5% at 2.5, 3.5, and 4.8 GHz, respectively. The gain is stable in the operating band within an uncertainty of 0.7 dBi. The whole dimension is 0.92λ × 0.63λ × 0.04λ, where λ
0 is the wavelength at the lowest resonant frequency. Furthermore, the simple structure and miniaturization provides great convenience in sub-6 applications.
Recycling of buffing dust tanneries waste to prepare structural thermal insulation panels
Authors: Ulfat Wajad , Mohyuddin Ayesha , Amjad Muhammad , Saeed Shagufta , Mujahid Beenish
Published: November 2021

Thermal insulation panels were prepared by mixing the buffing dust obtained from tanneries waste with the polystyrene. The ratio in weight percentage of buffing dust, polystyrene and blowing agent was 20:77:3 respectively in these panels. The samples were prepared in co-twine extruder at 210 °C. Different physico-chemical properties were investigated for these samples that are required to analyze the usability of a material for construction. The composite panels showed better thermal insulation characteristics than the simple polystyrene boards. This study demonstrated that prepared composite panels have good thermal conductivity (0.029 W m−1–K−1 at 27 °C), density (300 Kg m−3), compression strength (6.25 ton) and water absorption (7.5%) without degradation of mechanical properties. Thermogravimetric analysis depicted that composite panels were thermally stable from 200 °C to 412 °C. FTIR analysis showed that composite has carbonyl and free amino functional groups. The SEM study explained that voids were created in the composite and homogeneousity was decreased after the addition of buffing dust. The composite had 62% of carbon and 0.2% of chromium as determined by EDX analysis. The results suggested that the prepared composite panels can be used as thermal insulation boards in building sector which will help in the recycling of waste produced by leather industry and consequently a reduction in environmental pollution.
Towards efficient description of type-C London dispersion forces between low-dimensional metallic nanostructures
Authors: Dobson John F
Published: November 2021

This paper concerns one of the remaining difficulties encountered in efficient modelling schemes for dispersion forces between nanostructures. Dispersion (van der Waals, vdW) interactions between molecules and nanostructures can be reliably described in principle by computationally intensive high-level theory, but this is often not computationally feasible in practice, so more efficient methods are continually being developed. Progress has been made with nonlocal density functionals (vdW-DFs) and with atom-based schemes (D4, MBD, uMBD). In such efficient schemes, the effects beyond additive two-atom terms have been categorized as ‘type A’, ‘type B’ and ‘type C’ non-additivity (see Dobson (2014 Int. J. Quantum Chem.
114 1157)). Atom-based models using coupled-harmonic-oscillator theory (MBD) now deal adequately with type A and type B non-additivity, but type-C effects, related to gapless collective electronic excitations, can occur in low-dimensional metals, and these are not correctly described by the efficient schemes mentioned above.

From analytic work within the direct random phase approximation (dRPA), type-C effects have long been known to cause the vdW interaction between well-separated low-d metals to fall off much more slowly with separation than is predicted by the above-mentioned efficient schemes. The slower decay means that type-C effects dominate in this asymptotic large-separation regime. It has not been clear, however, whether type-C physics contributes significantly to the vdW interaction of low-d metals near to contact, where the forces are much larger.

The present work uses recent semi-analytic dRPA results to provide some evidence that type-C effects are indeed significant near to contact between metallic carbon nanotubes, and between doped graphene sheets.

Some guidelines are therefore suggested for ways to combine the semi-analytic dRPA approach, here termed ‘SAM-dRPA’, with the existing efficient vdW algorithms described above.