bluuebunny/crossref_metadata_2025_split huggingface dataset:
Occlusion-capable optical-see-through near-eye display using a single digital micromirror device
Authors: Ju Yeon-Gyeong , Choi Myeong-Ho , Liu Pengyu , Hellman Brandon , Lee Ted L. , Takashima Yuzuru , Park Jae-Hyeung 
Published: May 2020

Occlusion of a real scene by displayed virtual images mitigates
incorrect depth cues and enhances image visibility in augmented
reality applications. In this Letter, we propose a novel optical
scheme for the occlusion-capable optical-see-through near-eye display.
The proposed scheme uses only a single spatial light modulator, as the
real-scene mask and virtual image display simultaneously. A
polarization-based double-pass configuration is also combined,
enabling a compact implementation. The proposed scheme is verified by
optical experiments which demonstrate a 60 Hz red-green-blue video
display with a 4-bit depth for each color channel and per-pixel
dynamic occlusion of a 90.6% maximum occlusion ratio.
Portable broadband photoacoustic spectroscopy for trace gas detection by quantum cascade laser arrays
Authors: Liao Chien-Sheng , Blanchard Romain , Pfluegl Christian , Azimi Masud , Huettig Fred , Vakhshoori Daryoosh 
Published: May 2020

We report a portable broadband photoacoustic spectroscopic system for trace gas detection using distributed feedback quantum cascade laser arrays. By sequentially firing 128 lasers, our system acquires a photoacoustic spectrum covering

565

c
m

−
1

(

935

−

1500

c
m

−
1

) with a normalized-noise-equivalent-absorption coefficient of

2.5

×

10

−
9

c
m

−
1

W
H
z

−
1

/

2

. The firing sequence that determines when and which laser to activate is programmable, which enables frequency-multiplexing excitation. For demonstration, 12 lasers are modulated simultaneously at distinct frequencies, and a photoacoustic spectrum is acquired within 13 ms. The compactness (

28

c
m

×

17

c
m

×

13

c
m

, 3.5 kg) and low power consumption enable convenient installation for on-site monitoring.
Manifestations of Economic Resilience in Hospitals: What do managers say?
Authors: Jabbari Alireza , Mohammadi Farzaneh , Heidari Laleh 
Published: May 2020

Introduction: The area of healthcare requires crucial measures in the area of economic resilience. Regarding the important role of hospital managers in reaching the healthcare goals and realizing instances of the economic resilience in hospitals, the present study was conducted. The aim was to explore the perception of educational and healthcare centers’ managers in Isfahan regarding the concept and instances of economic resilience in hospitals.
Method: The data needed for this qualitative descriptive exploratory study were collected using semi structured interviews With 11 managers of educational and medical centers in Isfahan. Thematic analysis was used for the analysis.
Result: The concept of economic resilience included supporting domestic products, productivity, optimal use of resources, economy in consumption, strategic purchase, difference between economic resilience and economic austerity, and moving away from a mono-product oil-based economy. The basic components in instances of economic resilience included: drugs and equipment, human resources, financial management, installation and hoteling, consumption management, management and leadership, and information technology.
Conclusion: Due to the lack of a comprehensive definition about the concept of economic resilience from the participants' perspective, the goals of the economic resilience would not be achieved unless the executive authorities in large or small scale administration level conform to the ideas mentioned by the Supreme Leader of Iran.
Investigating the Causes of Divorce through Narrative Analysis in Yazd City and Designing a Prerequisite Education based on the Causes of Divorce using a Hidden Learning Approach on the basis of Family, School, and Student
Authors: Rezaei Vahid , Fallah Mohammad Hossein , Vaziri Saeed 
Published: May 2020

Introduction: Today, divorce is a well-known and dangerous social phenomenon that disintegrates families and corrupts the society. Therefore, this study aimed to investigate the causes of divorce through narrative analysis in Yazd City and to design a prerequisite education based on the causes of divorce using a hidden learning approach on the basis of family, school, and student approach.
Method: The statistical population of this study included the divorced couples in Yazd City selected using the available sampling method.A descriptive cross-sectional survey was used and clinical interviews were conducted with each divorced couple. The qualitative data were collected until data saturation was met. The collected data were analyzed by narrative analysis. After coding the information, the qualifications causes of divorce were identified. Later, an effective educational model was designed on the basis of family, school, and student using the hidden learning approach.
Conclusion: Qualitative analysis of the narratives of divorce factors resulted in an educational model based on active and hidden learning models on the basis of family, school, and student. The active learning model included consensus, case study, written activities, games, discussions and debates, and brainstorming. The hidden learning area included behavior observation, storytelling, intimacy, social learning, reinforcing normative behavior, watching movies, encouraging correct behavior, sports modeling. Based on the findings, the designed model can prevent from divorce.
Eco-epidemiological factors' of Head Lice in 10-12 year-old girls in Birjand City in 2017
Authors: Lashkari Razieh , Ehrampoush Mohammad Hassan , SHarifzadeh GholamReza , Ghaneian Mohammad Taghi , Dehghani Ali , Ebrahimzadeh Ardakani Mohammad 
Published: May 2020

Introduction: Lice are external parasites found in all socioeconomic classes around the world, which infect millions of people, especially children aged 5-14 years. Considering the growing and epidemiological trend of head lice in recent years, despite careful health care, more prognosis is needed. Therefore, this study aimed to study eco-epidemiological factors of head lice in 10-12 year-old girls in Birjand City in 2017.
Methods: This cross-sectional study with descriptive-analytic approach was conducted in Birjand City in the 2017. The participants were selected using cluster sampling method from girl primary schools in Birjand City and its suburb areas. Data were entered into SPSS version 22 and analyzed by logistic regression test at significant level of 0.0.5
Results: Head lice was evaluated in 2417 elementary school girls. The prevalence of head lice infection was 13.6% (n=329) in the population. The prevalence of contamination in urban areas was two times higher than the suburb areas. Significant correlations were observed between head lice infestation and father's education, mother's education, parent's job, family income, nationality, presence of foreigners in a class, habitat, history of previous student infections, presence of an infected person in the family, use of common Chador (piece of cloth worn by Muslim women to cover their body and hair) for praying at school. (p<0.05)
Conclusion: The prevalence of head lice infection in the present study was higher than other studies. The prevalence of head lice infection was also higher in the suburbs. So, preventive measures, especially in the suburbs are required with regard to factors associated with infection by the health system.
Research Barriers from the Viewpoints of Staff of Shahid Sadoughi University of Medical Sciences in 2018
Authors: Motealehi Ahmadreza , Vafaeenasab Mohamadreza , Jafari Hasan , Safari Masoud , Zare Asghar , Roshanian Elham 
Published: May 2020

Introduction: Research activities are the main sources of new information and knowledge used by different organizations. Research is an attempt to find the best possible solutions for solving problems in different life aspects. Therefore, the present study aimed to identify the research barriers from the viewpoints of the staff of Shahid Sadoughi University of Medical Sciences in Yazd in 2018.
Methods: This quantitative, descriptive, analytical, and cross-sectional study was carried out among the staff working in Deputy of Management Development and University Resources selected using the census method. A researcher-made questionnaire was administered to collect data, which addressed the individual, organizational, cultural, social, economic, and demographic barriers. The questionnaire's validity was confirmed by a panel of experts and its reliability was confirmed by Cronbach alpha of 87.2. Data were analyzed using SPSS software.
Results: The participants' overall satisfaction of economic, social and cultural, organizational, and individual factors was less than the average (12.8%), more than the average (57%), moderate (21.9%), and moderate (40.7%), respectively. A significant association was observed between history of research activities and economic factors as well as between organizational status and organizational and individual factors (participants = 0.05).
Conclusion: The university should provide the researchers with spiritual appreciation, seek to eliminate economic barriers for further research, allocate more resources for research, provide an easy access to facilities for conducting research, conduct research methodology training courses within the organization tailored to the existing administrative expertise, and review the processes of presenting projects and payments.
Levels of transparency and county service delivery in Kenya
Authors: Kiambati Kellen k 
Published: May 2020

In order to push development to the grassroots and ensure citizens contribute meaningfully to development, many African countries have adopted the devolved governance system. However, it has been observed that the devolution of political powers has not translated equally to envisioned overall development. In Kenya County governments have achieved various milestones towards development demonstrated through the infrastructure, social amenities, and standards of living. However, corruption has been increasing mainly due to a lack of transparency. This paper sought to examine the contribution of transparency levels in County government service delivery. The study adopted mixed method approach using survey and in-depth interviews concurrently. Stratified multi stage cluster sampling was deployed. Quantitative data was collected using questionnaires and qualitative data using interview schedules. Data was analyzed using descriptive and inferential statistics and a typological theory developed to explain the study results. The study findings showed that the level of transparency in the counties was low which affected service delivery. The study concluded that county governments should ensure that public participation and sharing of information is bidirectional to involve both users and management so as to improve service delivery.
Sumbangan Kecepatan dan Daya Ledak Otot Tungkai Terhadap Keterampilan Lompat Jauh Gaya Menggantung
Authors: Setiawan Hepi , Hutomo Pramudito 
Published: May 2020

Penelitian ini bertujuan untuk menguji tingkat hubungan kepercayaan diri dengan prestasi belajar pendidikan jasmani di Sekolah Dasar se Kecamatan Tawang, Kota Tasikmalaya. Metode penelitian menggunakan deskriptif-korelasional. Sampel dalam penelitian ini adalah siswa kelas VI yang dipilih mewakili beberapa sekolah yang ada di Kecamatan Tawang sebanyak 60 orang siswa dengan cara teknik purposive sampling. Instrument yang digunakan adalah berupa angket kepercayaan diri. Prosedur pengolahan data untuk memperoleh jawaban mengenai diterima tidaknya hipotesis sesuai dengan signifikansi yang diajukan adalah: (1) mencari rata-rata, (2) mencari simpangan baku, (3) menguji normalitas melalui uji Lillefors (4) menguji korelasi dua variabel. Berdasakan hasil penelitian dan perhitungan statistik terhadap uji hipotesis hubungan tingkat kepercayaan diri dengan prestasi belajar pendidikan jasmani, maka penulis dapat menyimpulkan sebagai berikut; terdapat hubungan yang signifikan antara kepercayaan diri dengan prestasi belajar siswa kelas VI di Kecamatan Tawang, Kota Tasikmalaya. Karena nilai signifikansi yang diperoleh lebih besar dari 0,05, dan nilai Yxy (0,90) > (0,250) rtabel (0,05)(60) maka H0 ditolak dan Ha diterima, sehingga terdapat hubungan yang signifikan antara kepercayaan diri dengan prestasi belajar (signifikan).
Treatment of Locked Pubic Symphysis by Distraction Osteotomy of the Superior Pubic Ramus
Authors: Pushpasekaran Narendran , Thampy Sujith , Khaleel Veliyaveettil Muhamed , Joseph Sachin 
Published: May 2020

Case:
An 18-year-old adolescent sustained a lateral compression injury to the pelvis that featured a locked pubic symphysis with plastic deformation of the sacrum. The pubic bone was entrapped in the opposite obturator foramen and required a novel distraction osteotomy of the superior ramus to restore the symphysis. The patient developed a urethral stricture 3 months after injury that required urethroplasty. The symphysis remained in alignment without any morbidity at the osteotomy site over 13 months of follow-up.

Conclusion:
Locked pubic symphysis is frequently associated with urethral injuries. The distraction osteotomy of the superior pubic ramus described is a viable reduction maneuver that neutralizes the plastic deformation forces.
Preoperative Angiography Can Guide Treatment of Post–Femoral Neck Fracture Capital Femoral Physeal Separation and Displacement
Authors: McGraw Jessica , Beaver Cody , Douthit Christian , Diab Michel 
Published: May 2020

Case:
A 13-year, 6-month-old boy sustained a Delbet type III femoral neck fracture with postoperative femoral head avascular necrosis (AVN) and subsequent capital femoral physeal separation (CFPS). Preoperative angiography revealed a patent artery of the ligamentum teres to the femoral head epiphysis, allowing our patient to undergo a modified Dunn procedure to maintain this artery and preserve his native hip.

Conclusion:
Preoperative angiography allows for real-time identification of femoral head epiphyseal blood supply in patients with femoral head AVN complicated by CFPS and guides surgical treatment for hip preservation.
Lack of synsedimentary chemical alteration in polar carbonates (Ross Sea, Antarctica): Resolution of a conundrum
Authors: Frank Tracy D. , James Noel P. , Shultis Aaron I. 
Published: May 2020

ABSTRACTAlthough rare in space and time, skeletal carbonates deposited on polar shelves hold great potential for improving understanding of the oceanography of the high latitudes. Low temperatures, low carbonate saturation states, and strong seasonality govern not only the nature of carbonate communities, but also how their deposits translate into the rock record. To understand the effects of early seafloor processes on preservation, we investigated late Quaternary carbonates recovered in piston cores from the Ross Sea, Antarctica. Sediments are unconsolidated skeletal gravels and sands that mantle areas of the outer shelf swept by strong bottom currents. Deposits are dominated locally by either stylasterine hydrocorals, barnacles, or bryozoans, which comprise assemblages with strong similarities to modern benthic communities. Radiocarbon ages indicate that carbonate factories were most prolific during the lead-up to the Last Glacial Maximum (Tartanian), when sediment input was minimized, and have been mostly dormant since. Results show that synsedimentary alteration is not substantially different in the temperate and polar realms with the significant exception of chemical diagenesis. As is common in temperate deposits, skeletal grains undergo disarticulation, fracturing, abrasion, and intense bioerosion. By contrast, cementation is absent and rare aragonite grains are preserved, indicating that taphonomic loss is not as prevalent as in temperate deposits. Primary skeletal microstructures and stable-isotope compositions are preserved, indicating that chemical alteration of grains is negligible. The preservation of aragonite in polar settings is herein attributed to low rates of organic-matter burial and very low temperatures, which strongly limit microbial activity. These factors allow interstitial waters to remain weakly supersaturated with respect to aragonite. Comparison with Permian analogs indicates that lithification is delayed until deposits reach burial depths at which chemical compaction proceeds. The ultimate end product is limestone with prominent compaction features and a tightly packed fabric. Calcitic skeletal material can retain primary geochemical compositions through the lithification process, although growth of burial cement in intraparticle porosity complicates selective sampling of unaltered material. In providing a cold-water end member for the spectrum of synsedimentary diagenetic processes, results highlight specific differences that should be accounted for when interpreting the deposits of polar, cold-water carbonate systems.
Tumor-associated Tissue Eosinophilia Predicts Favorable Clinical Outcome in Solid Tumors: A Meta-analysis
Authors: Hu Guoming , Wang Shimin , Zhong Kefang , Xu Feng , Huang Liming , Chen Wei , Cheng Pu 
Published: May 2020

Abstract
Background: Activated eosinophils have been deemed to affect carcinogenesis and tumor progression via various mechanisms in tumor microenvironment. However, the prognostic role of tumor-associated tissue eosinophilia (TATE) in human cancers remains controversial. Therefore, we performed the meta-analysis to better understand the role of TATE in prognosis prediction for cancer patients.Methods: We searched PubMed, Embase and EBSCO to identify the studies evaluating the association between TATE and overall survival (OS) and/or disease-free survival (DFS) in cancer patients, then computed extracted data into hazard ratios (HRs) for OS, DFS and clinicopathological features such as lymph node metastasis etc with STATA 12.0.Results: A total of 6384 patients from 26 published studies were incorporated into this meta-analysis. We found that the presence of TATE was significantly associated with improved OS, but not with DFS in all types of cancers. In stratified analyses based on cancer types, pooled results indicated that the infiltration of eosinophils was significantly associated with better OS in esophageal carcinoma and colorectal cancer. In addition, TATE significantly inversely correlated with lymph node metastasis, tumor stage and lymphatic invasion of cancer.Conclusion: TATE leads to a favorable clinical outcome in cancer patients, implicating that it is a valuable biomarker for prognostic prediction for human cancers and clinical application of biological response modifiers or agonists promoting TATE may be the novel therapeutic strategy for patients.
Disease-free survival as a surrogate endpoint for overall survival in adjuvant trials of pancreatic cancer: evidence from 20 randomized controlled trials
Authors: Nie Run-Cong , Zou Xue-Bin , Yuan Shu-Qiang , Chen Ying-Bo , Chen Shi , Chen Yong-Ming , Chen Guo-Ming , Chen Xiao-Jiang , Luo Tian-Qi , Li Shu-Man , Duan Jin-Ling , Wang Yun , Li Yuan-Fang 
Published: May 2020

Abstract
Background: We aimed to assess whether disease-free survival (DFS) could serve as a reliable surrogate endpoint for overall survival (OS) in adjuvant trials of pancreatic cancer. Methods: We systematically reviewed adjuvant randomized trials for non-metastatic pancreatic cancer after curative resection that reported a hazard ratio (HR) for DFS and OS. We assessed the correlation between treatment effect (HR) on DFS and OS, weighted by sample size or precision of hazard ratio estimate, assuming fixed and random effects, and calculated the surrogate threshold effect (STE). We also performed sensitivity analyses and a leave-one-out cross validation approach to evaluate the robustness of our findings. Results: After screening 450 relevant articles, we identified a total of 20 qualifying trails comprising 5170 patients for quantitative analysis. We noted a strong correlation between the treatment effects for DFS and OS, with coefficient of determination of 0.82 in the random effect model, 0.82 in the fixed effect model, and 0.80 in the sample size weighting; the robustness of this finding was further verified by the leave-one-out cross-validation approach. Sensitivity analyses with restriction to phase 3 trials, large trials, trials with mature follow-up periods, and trials with adjuvant therapy versus adjuvant therapy strengthened the correlation (0.75 to 0.88) between DFS and OS. The STE was 0.96 for DFS. Conclusions: Therefore, DFS could be regarded as a surrogate endpoint for OS in adjuvant trials of pancreatic cancer. In future similar adjuvant trials, a hazard ratio for DFS of 0.96 or less would predict a treatment impact on OS.
Prioritization of risk factors of gingival hyperplasia during orthodontic treatment: the role of biofilm.
Authors: VINCENT-BUGNAS Séverine , BORSA Leslie , GRUSS Apolline , LUPI Laurence 
Published: May 2020

Abstract
Background The mechanism of gingival growth that may occur during fixed orthodontic treatment is not yet fully understood and the amount of dental plaque is often incriminated. The objective of this study was to evaluate the prevalence of gingival growth during multi-attachment orthodontic treatment and to prioritize its associated factors. Methods: This comprehensive cross-sectional descriptive study was conducted on orthodontic patients aged 9 to 30 years, in good general health, treated by a fixed appliance. Periodontal clinical parameters such as plaque index, gingival index, probing pocket depth, periodontal phenotype and gingival enhancement index were recorded. Likewise, the brushing habits and the date of the last scaling were noted. The orthodontic parameters studied were the duration of the treatment, the type of attachment, the alloys used for the arches and the type of ligatures. Descriptive statistics were carried out, and variables presenting p value < 0.05 were included in a multivariate analysis to calculate the Odds Ratio (OR) of gingival enlargement". Results: A total of 193 patients were included (16.38 ± 4.89 years). Gingival growth occurred for 49.7% of patients included. The associated factors for this pathology during fixed orthodontic treatment were conventional metal brackets (OR = 3.5), mouth breathing (OR = 3), male gender (OR = 2.2), thick periodontal phenotype (OR = 2) and elastomeric ligations (OR = 2). After achievement of the logistic regression, the amount of plaque would not be directly related to the development of this gingival increase. Conclusions Among the associated factors that underlie gingival growth during multi-attachment therapy, the amount of plaque is not found. The qualitative assessment of the plaque and its evolution during treatment could clarify the role of the biofilm in the occurrence of gingival overgrowth.