bluuebunny/crossref_metadata_2025_split huggingface dataset:
Donner à voir ce qui resterait invisible autrement
Authors: Richter Alexandra 
Published: May 2022

Résumé Comme Wittgenstein, Walter Benjamin s’inspire pour ses travaux de la morphologie goethéenne en tant que sciences des formes de la vie. Pour son livre sur Paris, capitale du XIXe siècle, Benjamin affirme avoir transposé le concept goethéen de phénomène primitif « du domaine de la nature au domaine de l’histoire ». Ce transfert s’accompagne chez lui d’une critique de l’ontologisation du concept de « nature ». Or les travaux philosophiques de Benjamin sur les villes seront à leur tour contestés (par Adorno mais aussi Derrida) pour avoir ontologisé le concept d’« histoire » en se contentant d’une simple description des phénomènes, faisant fi de tout jugement. La discussion montre déjà les arguments de fond que l’on retrouve dans le débat actuel d’une possible critique des formes de vie.
Les impacts socio-économiques des défaillances internes des très petites entreprises (TPE) sur leur croissance
Authors: Goter-Grivot Françoise 
Published: May 2022

Cet article aborde la question de la survie-développement des Très Petites Entreprises (TPE). Les travaux de recherche ont identifié quelques variables qui les fragilisent. La sensibilité des TPE à la conjoncture économique apparaît toujours comme une fatalité. De plus, prises individuellement et en comparaison à de grandes entreprises, chacune d’elles est « invisible » dans le paysage socio-économique. Pour autant, les recherches en sciences économiques et de gestion montrent un poids économique considérable de ces entreprises dans la dynamique territoriale et un potentiel de création de valeur sous-exploité. À partir de recherches-interventions conduites sur quatre ans auprès d’une vingtaine de TPE, l’objectif est d’approfondir les déterminants internes qui affaiblissent les TPE et d’identifier les facteurs clés internes favorisant leur développement. Ces TPE sont issues des secteurs architectural et médical. Au total, 36 gérants et 128 collaborateurs ont été interrogés. Afin d’illustrer notre analyse, nous « décortiquons » l’une des recherches-interventions.
Le rôle des effets de réseau locaux et des effets spatiaux dans le développement des plateformes numériques : le cas du site de covoiturage iDVROOM
Authors: Malardé Vincent , Pénard Thierry 
Published: May 2022

L’objet de cet article est de comprendre le rôle des effets de réseau locaux et des effets spatiaux dans le développement des plateformes numériques, à travers l’exemple du site de covoiturage iDVROOM. Ce site est une plateforme biface au sens de Rochet et Tirole [2003], mais avec deux spécificités : 1) la plupart des utilisateurs sont sur les deux faces de la plateforme (à la fois conducteurs et passagers) et 2) les utilisateurs interagissent localement, le plus souvent au sein de communautés. Nous analysons l’impact du nombre d’utilisateurs inscrits et de communautés créées sur la croissance de la plateforme. À partir de données couvrant la période 2015-2018, nous montrons que l’activité de covoiturage dans une commune est stimulée à la fois par la création de communautés et par la base d’utilisateurs dans cette commune et dans les communes voisines. Toutefois, les effets de réseau sont modérés par le caractère local des interactions entre utilisateurs de la plateforme. Classification JEL : L14, L92, M13, R32.
Diagnostic Value of Oxidative Stress Markers in Patients Presenting with Primary Dysmenorrhea to the Emergency Department
Authors: Eroğlu O , Cömertpay E , Vural S , Badem N Dindar , İşbaşaran P , Neşelioğlu S , Erel Ö , Deniz T 
Published: May 2022

Background and Aim:
Primary dysmenorrhea (PD) is a common presentation for emergency departments. This study investigates the diagnostic value of oxidative stress and ischemia markers in patients with PD.

Materials and Methods:
The participants were classified into the PD group (patients with PD) and the control group (healthy volunteers). Thiol/Disulfide Homeostasis (TDH) parameters (Ds, Disulfide; NT, Native Thiol; TT, Total Thiol) and serum ischemia modified albumin (IMA) levels of the groups were measured. The Numeric Rating Scale (NRS) was used for pain assessment. Bivariate correlation analysis was performed to test the relationship between NRS and oxidative stress parameters. A P < 0.05 was considered significant.

Results:
A total of 135 patients (PD group, n = 83; Control group, n = 52) were included in the study. PD group had statistically higher oxidant biomarkers (Ds level, Ds/NT ratio and Ds/TT ratio) and lower antioxidant biomarkers (NT/TT ratio) compared to the control group (p = 0.001; 0.003; 0.002, and 0.002, respectively). Serum IMA level in the PD group was higher than in the control group (P = 0.000). There was a positive correlation between IMA and NRS score (r = 0.342, P < 0.01), but no correlation was found between the other oxidative stress parameters and NRS.

Conclusions:
PD is characterized by increased oxidative stress and ischemia in the endometrium, which can be detected by TDH parameters and serum IMA. NRS score in PD patients is positively correlated with serum IMA level, which suggests IMA level can be valuable to determine the severity of endometrial ischemia and pain in patients with PD.
Using of Panoramic and Posteroanterior Cephalometric Radiographs to Identify the Optimal Nasal Passage for Nasotracheal Intubation
Authors: Şengel N , Toprak ME , Selmi NH , Ataç MS 
Published: May 2022

Background and Aim:
Selecting the optimum nasal passage for nasotracheal intubation is quite important in the maxillofacial surgeries for the success of intubation and the reduction of potential complications such as nasal mucosal laceration, epistaxis, avulsion of the inferior and middle turbinates, and septal laceration.

Materials and Methods:
The present study evaluates standard panoramic radiographs (PR) and posteroanterior cephalometric radiographs (PACR) to determine the optimal nasal passage for nasotracheal intubation and compares the results with those of routine anesthesiological occlusion and spatula tests (ST). The results of occlusion tests (OT), ST, and radiological assessments of 60 patients prior to nasotracheal intubation were compared with the nasal endoscopic assessment results, and complications were evaluated.

Results:
There was no significant association between the OT and nasal endoscopy results (P = 0.075). A significant association was found between the ST and nasal endoscopy results (P = 0.000), and between the radiological assessments and the nasal endoscopy results (P = 0.000). Compatibility with nasal endoscopy was 54% when the occlusion and ST were evaluated together, 75% when the OT and radiological assessments were evaluated together, and 86% when the ST and radiological assessments were evaluated together. The highest level of compatibility was 92% when all the tests were evaluated together.

Conclusion:
The simple tests alone were found to be inadequate for the selection of the optimal nasal passage. Evaluation of PR and PACR, which are commonly used in maxillofacial surgeries, together with simple anesthesiological examination tests would increase nasotracheal intubation success and decrease complications.
Morphometric Study of Post Menarcheal Nulliparous Breasts, Their Clinical Relevance and Relationship with Body Size Indicators in a Nigerian Population
Authors: Anyanwu GE , Atuadu VO , Esom EA , Nwosu JC , Nto JN , Katchy AU 
Published: May 2022

Background:
The female breast is a symbol of femininity and aesthetics having a great psychosocial impact on the woman's sense of wellbeing and self-esteem. To optimize satisfaction of patients in cosmetic and reconstructive breast surgeries, there is a need to define the dominant breast size and shape that connotes feminine attractiveness. This necessitates the knowledge of ideal data for normal nulliparous female breast parameters and volume for various body sizes in the particular population, nationality, and race.

Aim:
To establish reference data for normal breast parameters and volumes for the various body sizes amongst the Nigerian population and to determine their relationships with other body parameters.

Patients and Methods:
A total of 528 breasts from 264 Nigerian undergraduate post-menarcheal nulliparous students of the University of Nigeria Enugu Campus aged between 17 and 29 years were measured. Thirty-one (31) anthropomorphic parameters and five body size anthropometric indicators were measured. Data obtained were analyzed using Statistical Package for Social Sciences (SPSS) version 21(IBM) and were summarized using various descriptive statistics tools.

Results:
The mean nipple-nipple distance is 23.37 ± 3.10. The mean left Midclavicle-nipple Length (22.17 ± 3.5 cm) is significantly (P = 0.04) higher than the right (21.79 ± 3.3 cm) just as the mean left (12.60 ± 2.5) medial radius is significantly (P = 0.0001) longer than the right (12.45 ± 2.4 cm). The mean left nipple projection (0.37 ±0.2 cm) and left vertical surface dimension (32.27 ± 5.7 cm) are significantly (P > 0.05) longer than the right (0.33 ±0.2) and (31.76 ± 5.2 cm). Also the mean volume for the left breast (605.26 ± 280.52 cm) is significantly (0.0001) higher than that of the right breast (592.53 ± 278.69). Breast volume correlated well with most of the breast parameters, BMI, and other anthropometric variables. Most breasts were ptotic (51%, 55%), especially the left breasts. Breast dimensions were asymmetrical in >50% of subjects, where the left breasts were seen to have slightly greater breast dimensions than right.

Conclusion:
Breast values and related body size parameters were noted to be comparatively higher than earlier reported values mostly for the Asian population.
Effect of Activated Chlorhexidine and Irritrol with Photon-Induced-Photoacoustic-Streaming and EDDY® on the Dislocation Resistance of Biodentine
Authors: Bozkurt DA , Yusufoglu S Ince , Keskin NB , Akman M 
Published: May 2022

Background:
Irrigant activation techniques, which are more effective in anatomically complex areas, can be used to maximize irrigant efficacy.

Aim:
This in vitro study aimed to evaluate the efficacy of different agitation techniques on the dislocation resistance of Biodentine to the root canal dentin.

Materials and Methods:
Seventy single-rooted teeth divided into seven experimental groups (n = 10); Group I-Irritrol/Photon-induced-photoacoustic-streaming (PIPS), Group II-Irritrol/EDDY®, Group III- Irritrol/Syringe-needle-irrigation (SNI), Group IV-Chlorhexidine-gluconate (CHX)/PIPS, Group V-CHX/EDDY®, Group VI-CHX/SNI, Group VII-Saline. The midroot dentin slice was obtained from each tooth, and Biodentine was condensed with hand pluggers into the root canal lumen. The push-out bond strength values were measured using a universal testing machine. Each sample was categorized into one of the three failure modes: adhesive/cohesive/mixed. Scanning-Electron-Microscopy (SEM) was used to conduct the analyses, and the composition of Biodentine was analyzed using Energy-Dispersive Spectroscopy. The One-way ANOVA, post-hoc Tukey's test, and the Chi-square test were used for statistical analysis.

Results:
The push-out bond strength values of Biodentine showed that Group VII-Saline had a statistically significant difference (P = 0.002), however, the differences between the other groups were not statistically significant (P = 0.922). The percentages of the failure modes of the samples showed that there was a higher rate of mixed failure except for Group VII-Saline. SEM examination showed that Group VII-Saline had no open dentinal tubules, whereas the other groups, particularly the Irritrol groups, had open dentinal tubule areas.

Conclusions:
Within the scope of the study, using Irritrol or CHX as the final irrigation in the root canal treatment did not result in differences in the dislocation resistance of Biodentine to root canal dentin when PIPS and EDDY® were used.
Neck Muscles' Responses to Cradle, Cross-cradle and Football Breastfeeding Hold Positions in Nursing Mothers
Authors: Ojukwu CP , Okpoko CG , Ikele IT , Ilo IJ , Ede SS , Anekwu NE , Okemuo AJ , Anekwu EM , Ugwu SU , Ikele CN 
Published: May 2022

Background:
Breastfeeding-related Neck Pain (BFNP) is prevalent in nursing mothers and cuts across the utilization of different breastfeeding (BF) hold positions. Biomechanical considerations to highlight ergonomically safe BF positions for the prevention of BFNP have not been previously studied.

Aim:
This study was designed to compare the electrical activities of selected neck muscles across three breastfeeding hold positions [cradle (C1), cross-cradle (C2), and football (FB)].

Materials and Method:
Surface electromyographic analyses of four neck muscles (right and left components of each trapezius and sternocleidomastoid) were performed respectively during three BF trials with different BF hold positions (C1, C2, and FB) in 22 nursing mothers. For all the trials, the mothers nursed from the left breast.

Results:
Across the three BF trials, the electrical activities of each of the neck muscles did not vary significantly (P > 0.05). Furthermore, the left muscular components showed predominantly higher activities, as compared to their right components.

Conclusion:
The breastfeeding hold position adopted during BF tasks may not be a determinant of BFNP in nursing mothers. Further studies to ascertain the biomechanical implications of the utilized BF holds are recommended.
Chemical composition and anti-inflammatory activity of essential oils from resin of Commiphora species
Authors: Dinku Worku , Bin Park Su , Boo Jeong Jin , Jung Chuleui , Dekebo Aman 
Published: May 2022

ABSTRACT. Essential oils (EOs) were prepared by the hydro-distillation technique from the resins of four Commiphora species and analyzed by GC-MS. Major constituents of EOs were a-copaene (22.71%), β-caryophyllene (28.03%) and β-caryophyllene oxide (13.89%) for C. sphaerocarpa; a-pinene (29.1%) for C. africana; hexadecane (14.1%) for C. habessinica and δ-cadinene (31.5%) for C. schimperi. We investigated the anti-inflammatory effects of EOs in lipopolysaccharide (LPS) stimulated RAW 264.7 macrophages by measuring nitric oxide (NO). The effect in mRNA or protein level after EO treatment were evaluated by RT-PCR and Western blot analysis, respectively. Among four Commiphora species, C. sphaerocarpa EO demonstrated a significant inhibition of LPS by 27.2±3.6% at 10 μg/mL and 62.3±5.2% at 20 μg/mL. C. sphaerocarpa EO inhibited LPS mediated iNOS over expression in both protein and mRNA level with dose dependent manner. It inhibited phosphorylation of ERK1/2, p38, ATF2. The enhanced anti-inflammatory activity of the EO of the plant was due to HO-1 expression by ROS dependent Nrf2 activation in RAW264.7 cells. These findings indicate C. sphaerocarpa EO inhibits the pro-inflammatory responses by inhibiting MAPK/ATF2, and triggering ROS/Nrf2/HO-1 signaling. Therefore, C. sphaerocarpa EO could have potential for useful therapeutic candidate preventing and treating inflammatory diseases.

KEY WORDS: GC-MS, Anti-inflammatory, C. africana, C. habessinica, C. sphaerocarpa, C. schimperi

Bull. Chem. Soc. Ethiop. 2022, 36(2), 399-415.
DOI: https://dx.doi.org/10.4314/bcse.v36i2.13
Novel and high efficient cycloaddition of CO2 with epoxides to cyclic carbonates over reusable mesoporous KIT-6 supported imidazolium lactate catalyst
Authors: Liu Yang , Lin Hu Yu 
Published: May 2022

ABSTRACT. A series of mesoporous KIT-6 supported ionic liquids were prepared and tested as effective and practical catalysts for the synthesis of cyclic carbonates by the cycloaddition of CO2 with epoxides. The effects of type of catalysts, catalyst amount, CO2 pressure, reaction temperature and catalyst stability have also been investigated in detail, the catalyst KIT-6@ILCH3CH(OH)COO(0.6) exhibited excellent activity in good to excellent yields, may be attributed to the synergetic effect between hydroxyl groups and lactate anion of the ionic liquid. In addition, the supported catalyst can be easily recovered and reused for six times still with satisfactory catalytic activity. Moreover, a general synergetic catalytic mechanism for the reaction was proposed. This work introduces a new and highly efficient pathway to explore the supported ionic liquids for the chemical fixation of carbon dioxide.

KEY WORDS: Mesoporous KIT-6, Ionic liquid, High efficient, Carbon dioxide, Cyclic carbonates, Recyclable catalyst

Bull. Chem. Soc. Ethiop. 2022, 36(2), 433-450.
DOI: https://dx.doi.org/10.4314/bcse.v36i2.16
Development of continuous flow injection analysis method for determination of oxymetazoline and vancomycin hydrochloride in pharmaceutical preparations
Authors: Hassan Bayan , Hadi Hind 
Published: May 2022

ABSTRACT. Continuous flow injection (CFI)-spectrophotometric method has been developed for oxymetazoline (OXY) and vancomycin hydrochloride (VAN) determination in pure and dosage forms. Sulfadimidine drug was used as a safe chromogenic reagent by diazotization coupling with studied drugs to produce sensitive azo dyes with maximal wavelengths of 498 and 441 nm, respectively, for OXY and VAN drugs. The effect of various chemical and physical conditions on the signal response has been studied. Under optimum conditions, Beer’s law was linear over the concentration range of 5–200 and 6–200 µg/mL with limits of detection of 2.19 and 1.79 µg/mL for OXY and VAN, respectively. The CFI systems gave a sample throughput of more than 120 samples per hour for 150 μL injection volume for both drugs. The proposed methods were used for the estimation of microgram quantities of both drugs in their different dosage forms with great effectiveness. The method's validity and applicability were thoroughly investigated and the recoveries values were compared with those of standard pharmacopeia methods. The specified approaches were used without the excipients interfering in pharmaceutical applications.

KEY WORDS: Oxymetazoline hydrochloride, Vancomycin Hydrochloride, Flow injection, spectrophotometry, Pharmaceutical formulations

Bull. Chem. Soc. Ethiop. 2022, 36(2), 303-313.
DOI: https://dx.doi.org/10.4314/bcse.v36i2.5
Employee Recruitment Process Analysis of PT. Wishan Global Medika Tangerang Banten Indonesia
Authors: Indra Ora Emi Yohanes , Erlina Puspitaloka Mahadewi  , Susi Shorayasari  , Rini Handayani  
Published: May 2022

The present study reports the first comprehensive study around employee recruitment, inside the era of globalization has led to intense competition in various industrial fields, including the medical and healthcare industry. PT. Wishan Global Medika (WGM) is a medical evacuation company in Tangerang Banten Indonesia, to face competitors the company needs to carry out employee recruitment activities in accordance with the vision and mission in order to achieve the goals the company wants to achieve. Product from Indonesian medical companies are still quite considered in the global market but still has competitor from countries in Southeast Asia. One way to face this competition is that companies are required to have competent and good performance employees. The purpose of this study was to analyze the employee recruitment process at PT. Wishan Global Medika Tangerang Banten. The conceptual framework of the employee recruitment process in this study includes 3 items, namely Sourcing, Selection Process, and User Process. The research method used is qualitative research with in-depth interviews with a case study approach. Purposive sampling was used with a total of 3 respondents, namely the main director, general manager and human resources staff. The results of the study indicate that the analysis of human resource management in this company still does not lead to the interests of the company and determines the types of tasks and jobs that need to be carried out and there is no management policy rules in order to support the strategy of human resource management. The analysis of the employee recruitment system in the company is considered to be in accordance with the standart operating procedures recruitment, also still needs to be improved in terms of sources and stages of recruitment so as to minimize obstacles in recruitment. The conclusion of this study is that the implementation of human resource development needs to be carried out in an integrated manner in long-term and annual corporate planning as well as improving the quality of recruitment so as to prevent the occurrence of vacancies.
Added Value and Ease of Using Quick Responses Qris Indonesian Standard (QRIS)
Authors: Susanti Melly , Kresnha Reza Heru 
Published: May 2022

Mobile payments are increasingly being adopted by organizations as a new way of doing business in the 21st century. Through The server electronic money application based, electronic wallet, or mobile banking based on Quick Responses QRIS) provides convenience for consumers to do transaction. This study uses the Technology Acceptance Model (TAM) in testing consumer intentions using the QRIS application. The sampling technique used is the total sample. The sample in this study was obtained online, the questionnaire was distributed online through social media whatsapp, Facebook, Instagram. The sample used as many as 123 respondents who use the QRIS application in paying. The data is processed by using SPSS tool. The result is that the added value in the QRIS application has no effect on comfort. Convenience has a significant effect on comfort. Consumers who use the QRIS application prefer the convenience offered by the QRIS program rather than the added value in the QRIS application. Furthermore, it can be seen the magnitude of the influence on the results and discussion sections. This research contributes convenience for consumers in paying or transacting. QRIS provides convenience for consumers in shopping. Apart from QRIS, there are still many payment systems and methods that can be used by consumers, such as OVO, Dana, Go-Pay, Sakuku, Truemoney, Link Aja, and T-Cash. Further researchers can add other variables that have not been included in this study or can also use a payment system other than QRIS.
Analisis pengaruh motivasi dan kepuasan kerja terhadap kinerja karyawan
Authors: Rohana Tulus 
Published: May 2022

The purpose of this study was to effect Analysis of Work Environment Motivation and Job Satisfaction of Employee Performance. The analytical method used is descriptive method with a quantitative approach and the multiple correlation and multiple regression using SPSS version 20.0. Based on the results of data analysis equations. Based on hypothesis testing using t test that the style of Work Environment Motivation and Job Satisfaction positif and significant impact of motivation on employee performance. Results of studies simultaneously using the F test, indicating that all of the independent variables significantly affect the performance of employees. Rated R Square of 0.254 which means that the effect of variable X (motivation and job satisfaction) to variable Y (employee performance) is at 25,4% while the remaining 25,3% influenced by other variables beyond the variables studied.