bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ein prognostisches Windfeldmodell für die neue VDI-Richtlinie 3783 Blatt 1/A prognostic wind field model for the new VDI guideline 3783 sheet 1
Authors: Schalau Sebastian , Schalau Bernd , Michel Simon , Schalau Tobias 
Published: April 2023

Zurzeit befindet sich die VDI-Richtlinie 3783 Blatt 1 in der Überarbeitung, wobei ein Modellwechsel auf ein Lagrange’sches Partikelmodell erfolgt. Für die Berechnung der Gasausbreitung mit Gebäuden ist ein Windfeld erforderlich. Mit AUSTAL wird auch das diagnostische Windfeldmodell TALdia zur Verfügung gestellt, das mittels empirischer Ansätze die Rezirkulationszonen von Gebäuden und Hindernissen modelliert. Ein prognostisches Windfeldmodell auf Grundlage der Navier-Stokes-Gleichungen sollte bei komplexen Bebauungssituationen bessere Berechnungsergebnisse liefern, was aber mit einem größeren Berechnungsaufwand verbunden ist. Im Rahmen eines IGF-Forschungsvorhabens wurde das prognostische Windfeldmodell OFWind als Open Source – Software entwickelt. Im Vergleich mit den experimentellen Ergebnissen des Forschungsvorhabens wird die Anwendbarkeit der beiden Windfeldmodelle bei drei komplexen Bebauungssituationen untersucht.

Abstact The VDI guideline 3783 sheet 1 is currently being revised, with a model change to a Lagrangian particle model taking place. A wind field is required for the calculation of gas propagation with buildings. With AUSTAL, the diagnostic wind field model TALdia is also made available, which models the recirculation zones of buildings and obstacles using empirical approaches. A prognostic wind field model based on the Navier-Stokes equations should provide better calculation results for complex development situations, but this involves a greater calculation effort. As part of an IGF research project, the prognostic wind field model OFWind was developed as open source software. In comparison with the experimental results of the research project, the applicability of the two wind field models is examined for three complex building situations.
Therapeutic effects of traditional Chinese medicine fumigating plus Yang-He decoction for patients with ankylosing spondylitis: A systematic review and network meta-analysis
Authors:   Shanghai Songjiang Fangta Hospital of TCM, Li Xuan , Wang Junjie , Mao Jing , Li Yunnan 
Published: April 2023

Review question / Objective: To assess the therapeutic effects of combined TCMF with YHD for AS patients. Condition being studied: Traditional Chinese medicine fumigating (TCMF) and Yang-He decoction (YHD) are widely used for ankylosing spondylitis (AS), whether combined used TCMF and YHD provides superior therapeutic effects for AS remained unclear. Eligibility criteria: (1) Patients: adult patients diagnosed with AS; (2) Treatments: TCMF plus YHD, TCMF, YHD, and WM; (3) Outcomes: the primary endpoint was effective rate, and the secondary endpoints including Visual Analogue Scale (VAS) score, Schober test (ST), thoracic expansion (TE), finger-floor distance (FFD), pillow-wall distance (PWD), spinal column activity (SCA), morning stiffness time (MST), Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Functional Index (BASFI), erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP); and (4) Study design: the study had to have RCT design.
Intermittency of Magnetic Discontinuities in the Near-Sun Solar Wind Turbulence
Authors: Wu Honghong , Huang Shiyong , Wang Xin , Yuan Zhigang , He Jiansen , Yang Liping 
Published: April 2023

Abstract
The intermittency domain is in the magnetohydrodynamic inertial range but just above the dissipation range and contains the intermittent structures that influence the spectral index. However, the nature of these structures is still under debate and how they affect the higher-order scaling behavior in the near-Sun solar wind turbulence remains to be investigated. Here we use the magnetic field data measured by Parker Solar Probe in the near-Sun solar wind. We identify the intermittency by partial variance of increments method and conduct the multiorder structure functions analyses in the intermittency domain before and after removing the intermittency. We also perform for the first time the scaling analyses on the fluctuations of magnetic field direction given by the rotational angle

θ
=

cos

−
1

(

B

1

·

B

2

)

/

∣

B

1

∣
∣

B

2

∣

, in which
B

1 and
B

2 are the magnetic fields measured at two instants. We find that the multifractal scaling of the magnetic field could be predicted by the log-Poisson intermittency model with 2D sheetlike structures and a simple Kolmogorov −5/3 monoscaling recovers after the removal of the intermittency. We also find a similar behavior for the scalings of θ, suggesting that magnetic discontinuities are involved in the energy transfer process of solar wind turbulence.
Effect of various training on exercise capacity and lung functions in cystic fibrosis patients: a systematic review
Authors: Beg H. , Parveen AM. , Saif A. , Khan Z. 
Published: April 2023

Abstract
The purpose of this review is to investigate the effects of various exercise training interventions on cystic fibrosis (CF) patients. We conducted electronic database search from SCOPUS, PubMed and Web of science from 01.01.2000 till 28.03.2022. Among 484 articles retrieved, 9 were found to be eligible for our review. Studies which investigated the effect of exercise training on exercise capacity (VO2peak), forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), oxygen saturation (SpO2), peak heart rate (HRpeak), peak work rate (WRpeak) and peak minute ventilation (VEpeak) were included. The quality assessment was done using a Cochrane risk of bias tool and all the studies demonstrated high risk of bias. Three studies demonstrated improvement in exercise capacity (VO2peak) post training. One study demonstrated significant improvement in WRpeak post training. Two studies demonstrated significant improvement in pulmonary function. The review suggested that exercise training has proven to be an effective tool in improving pulmonary function and exercise capacity in individuals with CF and can be considered to use in clinical settings. CF population can benefit from long term exercise training program.
Mean Quality of Life of Hypertensive and Diabetic Patients: A Comparative Study of Patients in Secondary and Tertiary Health Facilities in Kaduna State, Nigeria
Authors: Oyefabi Adegboyega Moses , Oyefabi Blessing Omotejohwo , Ejembi Clara , Onajole A T , Ogunsina Modupe Arinola , Nwankwo Bilkisu 
Published: April 2023

Introduction:
Hypertension and diabetes have become major non-communicable diseases of public health importance globally, considering the magnitude of the diseases, the propensity to worsen the patients’ quality of life and the associated mortality. This study compared the health-related quality of life (HRQOL) of hypertensive and diabetic patients in both tertiary and secondary health facilities in Kaduna State, north-western Nigeria.

Materials and Methods:
This was a descriptive comparative cross-sectional study amongst 325 patients, of which 93 (28.6%) were from the tertiary and 232 (71.4%) were from the secondary facilities. All eligible respondents participated in this study. Data were analysed with SPSS version 25 and STATA SE 12, t-test for comparison of two means, Chi-square and multivariate analyses were performed with P < 0.05.

Results:
The mean age was 55.72 ± 13 years. Two-thirds, 197 (60.6%), were hypertensive only, 60 (18.5%) were diabetic only (18.5%) and 68 (20.9%) were hypertensive diabetic. For the hypertensive only at the tertiary facility, the mean scores for vitality (VT) (68.0 ± 5.97, P = 0.01), emotional well-being (EW) (77.33 ± 4.52, P = 0.0007) and bodily pain (BP), (74.17 ± 5.94, P = 0.05) were significantly higher for tertiary compared with those at secondary facilities. The mean HRQOL for the people with diabetes only at the tertiary facilities also showed statistically significant higher scores for VT (72.2 ± 61, P = 0.01), social functioning (72.2 ± 8.4, P = 0.02), EW (75.44 ± 4.9, P = 0.001) and BP (85.56 ± 7.7, P = 0.01) when compared with the secondary facilities.

Conclusion:
Patients managed by specialists at the tertiary health facility had better HRQOL than those managed at the secondary health facilities. Continued medical education and the use of standard operating procedures are recommended for improved HRQOL.
Gouvernance et performance bancaire, quelles relations ? Application au secteur bancaire Algérien
Authors: Talhaoui Fares , Azzaoui Khaled 
Published: April 2023

Ce travail de recherche porte sur l’étude de l’impact des mécanismes internes et externes de gouvernance sur la performance bancaire. À partir d’un échantillon composé de 12 banques commerciales algériennes (6 banques publiques et 6 banques privées) sur une période de 13 années (2007 à 2019), nous analysons à l’aide de l’économétrie des données de panel, la relation qui pourrait exister entre les différentes variables de gouvernance, à savoir : les caractéristiques du conseil d’administration (CA), la concentration du capital et la réglementation des fonds propres sur la performance bancaire. Nos résultats indiquent que la plupart des mécanismes de gouvernance ont un impact significatif sur la performance bancaire.
This research work focuses on the study of the impact of internal and external governance mechanisms on banking performance. From a sample made up of 12 Algerian commercial banks (6 public banks and 6 private banks) over a period of 13 years (2007 to 2019), we analyze using panel data econometrics the relationship could exist between the different governance variables, namely: the characteristics of the board of directors (CA), the concentration of capital and the regulation of capital on bank performance. Our results indicate that most governance mechanisms have a significant impact on banking performance.
The impact of international capital flows on the economic growth in Algeria during the period 1990-20
Authors: Djalab Zohra , Said Ali Naas 
Published: April 2023

This study examined the effect of international capital flows on economic growth in Algeria for the period, 1990 to 2018. This study relied on four core channels of international capital flows which includes foreign direct investment (FDI), official development assistance (ODA), personal remittances (REM), and external debt stock (EXTDS) into Algeria. We found that all channels of international capital flows were not statistically significant in the short and long-run except the foreign direct investment.We result from this study that Algeria needs deep reforms in order to attract more foreign capital, especially creating an appropriate environment In order for these flows to contribute substantially to economic growth.
L'étude a examiné l'effet des entrées de capitaux internationaux sur la croissance économique de l'Algérie pour les périodes 1990 à 2018. L'étude a utilisé quatre principaux canaux d'entrées de capitaux internationaux, qui comprennent l'investissement direct étranger (IDE), l'aide publique au développement (APD), les envois de fonds personnels (REM) et le stock de dette extérieure (EXTDS) en Algérie.Nous avons constaté que tous les résultats n'étaient pas statistiquement significatifs à court et à long terme, à l'exception de l'investissement étranger direct.Nous avons appris de cette étude que l'Algérie a besoin de réformes profondes afin d'attirer plus de capitaux étrangers, en particulier en créant un environnement approprié pour que ces flux contribuent de manière substantielle à la croissance économique.
Increasing returns to GNI per capita and the human development index (HDI)
Authors: Saha Jean Claude 
Published: April 2023

Since 1990, UNDP has considered GNI per capita as a microeconomic variable that yields decreasing marginal material welfare in the calculation of HDI. Consequently, international inequality of development is significantly and unrealistically reduced. In this paper we support that GNI per capita is a macroeconomic variable with increasing marginal material welfare at the national level. We then propose an alternative method of transforming GDP per capita into material welfare. We use this formula on HDI data of the year 2016. We obtained a new HDI_2016 for all UN countries; this new HDI_2016 is associated with a new ranking of countries and with a significant and realistic increase in international inequality of development measure.
Depuis 1990, le PNUD considère le PNB par tête, dans le calcul de l’IDH, comme une variable microéconomique dont l’utilité marginale est décroissante. Ceci a pour conséquence de réduire anormalement l’inégalité de niveaux de développement perçu entre nations. Dans cet article, nous soutenons que le PIB par tête est un agrégat macroéconomique dont l’utilité marginale pour les citoyens d’un pays est plutôt croissante. Nous proposons alors une formule alternative de calcul de la composante bien-être matériel de l’IDH. Une application sur les données de l’IDH de l’année 2016 nous donne un nouvel IDH_2016 pour tous les pays considérés par le PNUD. Ce nouveau IDH_2016 modifie significativement le classement des pays et ramène l’inégalité internationale de niveau de développement à un niveau plus réaliste.
Télétravail en période de crise sanitaire : Etat des lieux de quelques entreprises Algériennes
Authors: Mebarki Naceur M 
Published: April 2023

En termes d’organisation du travail, la crise sanitaire (Covid-19) a eu des effets et implications sur les méthodes de travail. A cet effet, beaucoup d’entreprises ont lancé le télétravail. Dans notre travail, nous nous proposons d’analyser la réaction de certaines entreprises algériennes à cette nouvelle situation. Notre étude pointe de nombreux bénéfices du télétravail et les nécessaires axes d’amélioration pour sa mise en oeuvre dans les entreprises n’ayant pas encore initié cette démarche. De plus, elle soulève l’existence de quelques difficultés qui limitent le développement du télétravail en Algérie ; certaines sont d’ordre technique et d’autres sont liées au manque d’un cadre réglementaire qui gère les relations de travail de ce mode de travail.
In terms of work organization, the health crisis (Covid-19) has had effects and implications on working methods. To this end, many companies have launched telework. Our work proposes to analyze the reaction of some Algerian companies to this new situation. Our study points to many benefits of telework and the necessary areas for improvement for its implementation in companies that have not yet initiated this approach. In addition, it raises the existence of some difficulties that limit the development of teleworking in Algeria, some are technical and others are related to a lack of a regulatory framework that manages the labor relations of this mode of job.
Performance Evaluation of Home-developed Four-row Animal Drawn Precision Maize Planter using a Pair of Bull to Plant SAMMAZ 17 Maize Variety in Samaru-Zaria, Nigeria
Authors: Ahmed K. , Saleh A. , Kalu G. , Musa A. D. , Amonye M. C. 
Published: April 2023

Realization of optimum yield per hectare in maize production has always been a challenge especially when using home-developed equipment. The objectives of this research was to evaluate the effect of ground speed, hopper seed quantity and planting depth on plant spacing, germination count, and seed delivery rate of a home-developed four-row animal drawn precision maize planter using a pair of bull to plant SAMMAZ 17 maize variety on a harrowed field. It was drawn by a pair of bull in a 3×3×2 randomized complete block experimental design. The treatment factors were three levels of hopper seed quantity (25%, 50% and 100%), three levels of ground speed (2.16, 2.88, and 3.6 km/h) and two levels of planting depth (15 and 25 mm). The results showed that the effects of planting speed, seed quantity and planting depth were highly significant on the planting performance of the machine. The optimum mean seed spacing, germination counts, field efficiency and seed delivery rate of 23.52 cm, 100 %, 86.9% and 20.3 kg/ha respectively were obtained. The study show that optimum seed stand could be achieved with home-developed planted for optimum yield when ground speed, hopper seed quantity and planting depth were varied appropriately.
Evaluation of Phytochemical Constituents of Fresh Roots Aqueous and Ethanolic Extracts of the Medicinal Plants of Uvaria chamae, Anthocleista djalonensis and Euadenia eminens
Authors: Okereke A. , Sanni O. , Mbonu J. , Onuoha O. , Tiamiyu O. A. , Adewole A. R. , Okpuzor J. 
Published: April 2023

Phytochemicals are bioactive plant chemicals nutrients typically found in fruits, vegetables, grains, and other plant foods which may provide desirable health benefits beyond basic nutrition and can help reduce risks of major chronic diseases. This study was conducted to evaluate the phytochemical constituents of fresh roots ethanolic and aqueous extracts of medicinal plants of Uvaria chamae, Anthocleista djalonensis and Euadenia eminens using standard methods of phytochemical screening and Gas Chromatography - Mass Spectrometry (GC-MS) analysis. Phytochemical screening revealed a diverse array of phytochemical constituents such as alkaloids, flavonoids, phenols, tannins, saponins, isoprenoids, steroids, phlobatanins and cardiac glycosides. The results of GC-MS analysis of aqueous and ethanolic extracts of U. chamae revealed the presence of four and fourteen compounds respectively. Aqueous and ethanolic extracts of A. djalonensis had ten and seventeen compounds respectively while the aqueous and ethanolic extracts of E. eminens was found to have six and twenty compounds respectively. These results indicate U. chamae, A. djalonensis and E. eminens possess phytochemicals which have potential antioxidant, antidiabetic, anticancer, anti-inflammatory activity amongst others and as such, can be recommended as plants of phytopharmaceutical importance.
2D and 3D Geoelectrical investigation of Hydrocarbon impacted sites in Erhoike Community, Ethiope East local Government Area, Delta State, Nigeria
Authors: Marere O. S. , Aigbogun C. , Bunonyo T. Y. 
Published: April 2023

Hydrocarbon contamination occurs as a result of corrosion of buried pipelines, sabotage of oil and gas facilities and spills during petroleum product transportation. This study was undertaken to characterize hydrocarbon impacted sites in Erhoike community, Ethiope East local government area, Delta State, Nigeria using ten (10) transects were established in grid format to attain geoelectric data that were inverted to yield 2D resistivity structure and 3D depth slices respectively. The 2D results show that the hydrocarbon impacted zones are marked by very high resistivity values ranging from 637 ohm-m to more than 17000 ohm-m from the surface to a depth in excess of 31.9 m in places within the study area. In the same vein, the 3D result indicated that bulk of the contaminant has progressively moved to deeper depth with most of the plume found at between 25.0 – 33.7 m. The data obtained show that the site has been impacted by hydrocarbon contaminant. It also shows that the hydrocarbon moved downwardly at greater depth into the subsurface, through a porous medium - sandy layer. Finally, the study has demonstrated the effectiveness of the adopted geophysical techniques in delineating hydrocarbon contamination.
The Integration of vertical and horizontal programmes for health systems strengthening in Malawi: a case study
Authors: Sakala Joseph J. , Chimatiro Chancy S. , Salima Racheal , Kapachika Arnold , Kalepa Josephine , Stones William 
Published: April 2023

A challenge for the health system in Malawi is that funding allocation is heavily influenced by donor priorities. As a result, mandated routine elements of service delivery may not be fully offered owing to lack of resources or programmatic priority. Integration of currently active ‘vertical’ programmes (those focused on a specific priority disease entity) into existing ‘horizontal’ services (meaning provision across the range of clinical and public health need) has potential to improve access and quality of service delivery for Reproductive, Maternal, Newborn, Child and Adolescent Health (RMNCAH) in Malawi.
We identified and tabulated the main vertical funding streams currently available in Malawi and identified where these could intersect with existing horizontal health sector programmes in order to strengthen RMNCAH. We have indicated how each of the main vertical programmatic components can be adapted and integrated to support broader system strengthening within RMNCAH focusing especially on drug and commodity procurement, supply chain logistics, health facility and equipment maintenance/upgrading, health service activity data systems, human resources for ‘front line’ RMNCAH provision, as well as community engagement and mobilization.
By circumventing the various limitations of vertical programmes in the delivery of health services in the country, they would complement existing funding streams rather than operating in a vacuum as independent activities. We therefore recommend the integration of horizontal and existing vertical programmes in order to improve RMNCAH in Malawi.
The 2022 Malawi Polio outbreak
Authors: Chunda Penjani , Chisema Mike N. , Mwale Annie , Kambalame Dzinkambani , Mapemba Daniel , Muula Adamson S. 
Published: April 2023

After 30 years of no polio cases reported in Malawi, on 17th February 2022, the government declared a polio outbreak following a confirmed 4-year-old child case of the disease in the nation’s capital, Lilongwe.
This was the first case of wild poliovirus in Africa in more than five years after Africa was declared free of indigenous wild polio in August 2020. Laboratory analysis showed that the strain detected in Malawi was linked to that which had been circulating in Sindh Province of Pakistan.
An audit of Heart failure management among ambulatory adult patients at Queen Elizabeth Central Hospital (QECH), Malawi
Authors: Mwabutwa Emmanuel S. , Kateta Steve , Kinley Louis , Ulemu Tadala , Goodson Patrick , Muula Adamson  S. , Kumwenda Johnstone 
Published: April 2023

Background
There are limited data on the clinical characteristics and use of guideline directed medical therapy among patients with heart failure in Malawi. We conducted a study to assess patient characteristics and clinical management given to heart failure patients at Queen Elizabeth Central hospital in Malawi.
Methods
In a cross sectional study, patients with a diagnosis of heart failure who were followed up in the adult chest clinic at QECH were recruited to ascertain their characteristics and the therapy they were receiving. Echocardiograms and electrocardiograms were performed to identify abnormalities.
Results
A total of 79 patients were recruited and 62% (49 out of 79) were female. The median age was 60 years (IQR 40.5-70.5). Most patients were hypertensive with NYHA (New York Heart Association) class I and II symptoms. Left ventricular(LV) systolic dysfunction was found in 55% (36 out of 65), with 68% (39 out of 65) having features of left ventricular remodeling. Most patients were on at least a single neurohormonal drug with 77% (61 out of 79) on ACEI (angiotensin converting enzyme inhibitor), 52% (42 out of 79) on a beta blocker and 34%(27 out of 79) on aldosterone antagonists. The recommended doses of medications were achieved in 14% (9 out 61), 24% (10 out 42), 22% (6 out of 27) on ACEI, beta blockers and aldosterone antagonists respectively.
Conclusions
Hypertension is the commonest comorbidity in patients with heart failure, who are mostly females with NYHA class I or II symptoms. Most had LV remodeling changes and are on at least one neurohormonal antagonist but most remain sub optimally treated.