Helmet chinstrap protective role in maxillofacial blast injury

2020 ◽  
pp. 1-13
Author(s):  
Shuai Xu ◽  
Gang Zhang ◽  
Jun-Feng Guo ◽  
Ying-Hui Tan
Keyword(s):  
Shock Wave ◽  
Element Model ◽  
Protective Role ◽  
Maxillofacial Region ◽  
Study Results ◽  
Stress Curve ◽  
Explosive Devices ◽  
Stress Flow

BACKGROUND: The protective role of helmet accessories in moderating stress load generated by explosion shock waves of explosive devices is usually neglected. OBJECTIVE: In the presented study, the protective role of the helmet chinstrap against the impulse and overpressure experienced by the maxillofacial region were examined. METHODS: The explosion shock wave and skull interaction were investigated under three different configurations: (1) unprotected skull, (2) skull with helmet (3) skull with helmet and chinstrap. For this purpose, a 3D finite element model (FEM) was constructed to mimic the investigated biomechanics module. Three working conditions were set according to different explosive charges and distances to represent different load conditions. Case 1: 500 mg explosive trinitrotoluene (TNT), 3 cm, case 2: 1000 mg TNT, 3 cm, and case 3: 1000 mg TNT and 6 cm distance to the studied object. The explosion effect was discussed by examining the shock wave stress flow pattern. Three points were selected on the skull and the stress curve of each point position were illustrated for each case study. RESULTS: The results showed that the helmet chinstrap can reduce the explosive injuries and plays a protective role in the maxillofacial region, especially for the mandible.

scholarly journals Fibroblast Growth Factor 20 Gene Polymorphism in Parkinson’s Disease in Asian Population: A Meta-Analysis

Genes ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 674
Author(s):  
Han-Lin Chiang ◽  
Yih-Ru Wu ◽  
Yi-Chun Chen ◽  
Hon-Chung Fung ◽  
Chiung-Mei Chen
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Meta Analysis ◽  
Lewy Bodies ◽  
Asian Population ◽  
Protective Role ◽  
Lewy Neurites ◽  
Chinese Populations ◽  
Study Results

Parkinson’s disease (PD) is a neurodegenerative disease with the pathological hallmark of Lewy bodies and Lewy neurites composed of α-synuclein. The SNP rs591323 is one of the risk loci located near the FGF20 gene that has been implicated in PD. The variation of FGF20 in the 3′ untranslated region was shown to increase α-synuclein expression. We examined the association of rs591323 with the risk of PD in a Taiwanese population and conducted a meta-analysis, including our study and two other studies from China, to further confirm the role of this SNP in Taiwanese/Chinese populations. A total of 586 patients with PD and 586 health controls (HCs) were included in our study. We found that the minor allele (A) and the AA + GA genotype under the dominant model are significantly less frequent in PD than in controls. The meta-analysis consisted of 1950 patients with PD and 2073 healthy controls from three studies. There was significant association between rs591323 and the risk of PD in the additive (Z = −3.96; p < 0.0001) and the dominant models (Z = −4.01; p < 0.0001). Our study results and the meta-analysis support the possible protective role of the rs591323 A allele in PD in Taiwanese/Chinese populations.

scholarly journals The Role of Sufistic-Based Kiai Leadership in Developing the Character of Santri in the Pesantren

2021 ◽  
Vol 13 (3) ◽  
pp. 1705-1714
Author(s):  
Chusnul Muali ◽  
Moh Rofiki ◽  
Hasan Baharun ◽  
Zamroni Zamroni ◽  
Lukman Sholeh
Keyword(s):  
Essential Role ◽  
Vital Role ◽  
Qualitative Approach ◽  
Reduction Techniques ◽  
Study Results ◽  
Technological Developments ◽  
The Subject ◽  
Common Understanding

This study aims to describe Sufistic-based Kiai leadership's role in shaping Santri character at the Pesantren Nurul Jadid Paiton Probolinggo. This research is a case study qualitative approach, with Kiai as the subject. We collected data using interview, documentation, and observation techniques, then analyzed using reduction techniques, presenting data, and drawing conclusions. The results showed that the Sufistic-based Kiai's leadership had an essential role in fostering the character of the Santri. The study results indicate that the Sufistic-based Kiai leadership has a vital role in promoting the surface of the Santri. Kiai is a person who gives influence in building character with Uswah (Modelling). This study also found that the factors that influence low morale are that Santri has a common understanding of the latest technological developments. In Sufistic-based leadership, there are four things that a leader must possess: 1) The Tawasuth, 2) The nature of I'tidal, 3) The Tawazun, and 4) The Tasamuh.

Agile Teams in Digital Media

2020 ◽  
pp. 340-359
Author(s):  
Rachel Ralph ◽  
Patrick Pennefather
Keyword(s):  
Digital Media ◽  
Reflective Practitioner ◽  
Comparative Case Study ◽  
Future Research ◽  
Master's Program ◽  
Study Results ◽  
Agile Practices ◽  
Media Environments

As we move towards the third decade of the 21st century, the development of emerging technologies continues to grow alongside innovative practices in digital media environments. This chapter presents a comparative case study of two teams (Team A and Team B) in a professional master's program during a 13-week, project-based course. Based on the role of documentation and the reflective practitioner, team blogs representing learner experiences of Agile practices were analyzed. This case study chapter focused on one blog post of a mid-term release retrospective. The results of this case study are framed around Derby and Larson's (2006) Agile retrospectives framework, including: set the stage, gather data, generating insights, deciding what to do, and closing the retrospective. The case study results suggest the need for public documentation of retrospectives and how this can be challenging with non-disclosure agreements. Also, the authors identify the importance of being a reflective practitioner. Future research on educational and professional practices needs to be explored.

scholarly journals A Quantitative Study on the Requirement for Additional Inertia in the European Power System until 2050 and the Potential Role of Wind Power

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2309 ◽  
Author(s):  
Christos Agathokleous ◽  
Jimmy Ehnberg
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Worst Case ◽  
Study Results ◽  
The Future ◽  
Alternative Sources ◽  
The Eu

A significant amount of conventional power plants in the European power system is anticipated to be replaced by solar and wind power in the future. This may require alternative sources for inertia support. The purpose of the paper is to learn about the consequences on the frequency deviation after a fault in the European power system when more wind and solar are introduced and when wind is considered as a possible provider of inertia. This study quantifies the expected maximum requirement for additional inertia in the future European power system up to 2050. Furthermore, we investigated the possibility of wind power to meet this additional need by providing emulated inertia. The European power system of the EU-28 countries has been clustered to the five synchronous grids, UCTE, Nordic, UK, Baltic and Irish. The future European energy mix is simulated considering twelve different scenarios. Production units are dispatched according to their expected environmental impacts, which closely follow the minimum natural contribution of inertia, in descending order. The available capacity for all the types of production is considered the same as the installed. For all the simulated scenarios the worst case is examined, which means that a sudden disconnection of the largest production unit of the dispatched types is considered. Case study results reveal that, in most cases, additional inertia will be required but wind power may fully cover this need for up to 84% of all simulated horizons among all the scenarios on the UCTE grid, and for up to 98%, 86%, 99% and 86% on the Nordic, UK, Baltic and Irish grids, respectively.

scholarly journals PENGELOLAAN MODAL SOSIAL DALAM MENINGKATKAN KESEJAHTERAAN MASYARAKAT (STUDI KASUS BAITUL MAAL HIDAYATULLAH SURABAYA)

2020 ◽  
Vol 7 (5) ◽  
pp. 842
Author(s):  
Nur Halimah ◽  
Irham Zaki
Keyword(s):  
Social Capital ◽  
Data Collection ◽  
Direct Observation ◽  
Qualitative Approach ◽  
Study Strategy ◽  
Explanatory Analysis ◽  
Analysis Technique ◽  
Study Results

This study aimed to describe and analyze the role of social capital, as seen from the interrelation of networks, norms, and beliefs in improving the welfare of the community under the indicators of Maqashid Syariah. This study employed a qualitative approach with a case study strategy. Besides, this study has an analysis unit in the form of social capital and improvement of the welfare of the community who received scholarship assistance from Baitul Maal Hidayatullah of Surabaya. Also, data collection was carried out by interview and direct observation of the research object. The analysis technique utilized in this study was an explanatory analysis technique by explaining the results of interviews and direct observation. The study results reveal that social capital with norms, networks, and trust indicators play a role in improving the welfare of the community seen from the aspects of Maqashid Syariah.Keywords: Social capital, Welfare, and Maqashid Syariah

scholarly journals Protective Effect of Procambarus Clarkia Hemolymph against Acute Kidney Injury Induced by Gentamicin in Rats

2020 ◽  
pp. 123-129
Author(s):  
Abdeljalil M`ohamed Al Shawoush ◽  
Ayman Saber Mohamed ◽  
Sohair Ramadan Fahmy
Keyword(s):  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Protective Role ◽  
Pharmacological Activities ◽  
Partial Restoration ◽  
Stress Markers ◽  
Study Results ◽  
Liver Functions ◽  
Kidney Functions

Background: P.clarkii hemolymph has several pharmacological activities against inflammation, bacteria and tumor. The current study aimed to explore the efficacy of P.clarkii hemolymph against the renal toxicity induced by Gentamicin (GM) in rats. Methods: The animals were divided randomly into three groups (six per group): control, GM and P.clarkii. Tissues toxicity was established after injection of GM daily for eight days at a dose 100 mg/kg. Kidney functions, liver functions, oxidative stress markers and histopathology of tissues were investigated in the study. Results: P.clarkii treated rats showed a significant decrease in urea, creatinine, uric acid, ALT, AST, and MDA levels while GSH and CAT levels increased. The histology of kidney investigation showed partial restoration of renal architecture. Conclusion: The study results revealed the protective role of p.clarkii hemolymph against gentamicin-induced acute kidney injury in rats.

The role of finance in the sales and operations planning process: a multiple case study

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marcelo Seeling ◽  
Tobias Kreuter ◽  
Luiz Felipe Scavarda ◽  
Antonio Márcio Tavares Thomé ◽  
Bernd Hellingrath
Keyword(s):  
Latin American ◽  
Multiple Case Study ◽  
Evidence Based ◽  
Operations Planning ◽  
Content Type ◽  
Study Results ◽  
Multiple Case ◽  
Pharmaceutical Industries

PurposeThis paper aims to offer evidence-based findings on the under-researched role of finance in the sales and operations planning (S&OP) process, aiming to guide academics and practitioners towards successful S&OP implementations.Design/methodology/approachThe research builds upon a multiple case study, embracing five Latin American subsidiaries of four global manufacturing corporations from the consumer goods, chemical and pharmaceutical industries. Following an exploratory approach, the case study results are analysed in within- and cross-case analyses.FindingsThe research findings are synthesised into a framework, demonstrating relevant benefits from the engagement of finance along the S&OP process and the implications of its interactions with traditional S&OP functions as sales, marketing and operations. The paper shows how finance adds value in supporting the process, enabling decisions on costs, margins, capital expenditures and return on investments. Finance strengthens S&OP when assessing demand- and supply-related risks and facilitates comparing the functional business areas' plans to budget. While finance participation is highlighted as necessary for supporting successful S&OP implementations, it also receives valuable inputs in return, characterising a two-way communication role that benefits the entire organisation.Originality/valueThis is the first research paper focusing on empirically exploring the role of finance within S&OP, going beyond initial insights from practice and academia. It provides practitioners and scholars with an in-depth, evidence-based view of finance's integration along the S&OP process.

scholarly journals The Role of Continuous Education Programs Organized by Saudi Universities in Literacy—A Case Study of King Saud University

2017 ◽  
Vol 10 (4) ◽  
pp. 187
Author(s):  
Haya Saad Abdulla Al Rawaf ◽  
Azza Khalil Abdel Fattah ◽  
Fadia Yousif Abdel Megeid ◽  
Rania Mohammed Aziz Nazmy ◽  
Sarah Nasser Alarifi ◽  
...  
Keyword(s):  
The Other ◽  
Health Issues ◽  
Education Programs ◽  
Continuous Education ◽  
King Saud University ◽  
Study Results ◽  
Two Samples ◽  
The University

This study aims at highlighting the role of Continuous Education Programs at the Saudi Universities in Religious, Social, and Health Literacy; King Saud University was taken as an example. To achieve the goals of the study two questionnaires were distributed among two samples from King Saud University; (101) of students, and (9) of continuous education centers’ directors. Results showed that continuous education programs presented in religious awareness development do not contribute sufficiently in developing them. However; continuous education programs have favorable role in community’s social culturing. Also, continuous education programs contribute, at medium degree, in community’s health culturing. On the other hand; people in charge agree that the investment revenue in financing continuous education programs is minor as well as financing offered by the University. In light of the study results, the researchers recommended paying more attention to present more continuous education programs of concern as to individuals’ needs through cooperation with the research center in the University to perform survey studies targeted to define the individuals’ needs in terms of religious, social and health issues.

scholarly journals Technology Readiness and Customer Satisfaction with Travel Technologies: A Cross-Country Investigation

2016 ◽  
Vol 56 (5) ◽  
pp. 563-577 ◽  
Author(s):  
Ying Wang ◽  
Kevin Kam Fung So ◽  
Beverley A. Sparks
Keyword(s):  
Online Survey ◽  
Service Providers ◽  
The United States ◽  
Technology Readiness ◽  
Study Results ◽  
Cross Country ◽  
Tourism And Hospitality

Technologies have dramatically transformed tourist experience. However, research has largely focused on traveler attitudes and technology adoption rather than their experience with travel technologies. Taking a cross-country perspective, this study examines the role of technology readiness (TR) as a personality trait in shaping travelers’ satisfaction with travel technologies, using airlines as a case study. Results of an online survey of travelers in Australia, China, and the United States revealed the moderating effects of the TR dimensions of optimism and innovativeness as well as country of residence on the relationships between perceived quality of technology-enabled services (TESs), satisfaction with TESs, overall satisfaction, and future behavior. These relationships were stronger among travelers with higher TR and varied across countries. The results suggest that tourism and hospitality service providers should incorporate measures of traveler TR and TESs’ performance into their customer-experience monitoring system.

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