Miracle-dz/UniFAR-FTUs huggingface dataset:
Shock absorber with inward-folding composite tube and its application in legged landing gear

Abstract A shock absorber based on the progressive failure of a composite tube was developed. The composite tube is subjected to axial compression from the pressing cap at one end and folds inward at the other end under the effect of the crush cap without debris overflow. The crushed composite is compacted into a hollow tube and increases the resisting force once it reaches the pressing cap. For larger strokes without a load increase, a hole is made in the pressing cap for the crushed composite. Three crush caps with different curvatures of the inward-folding surface and two composite tubes were evaluated through static and dynamic tests. The crush cap lowered the initial peak load and varied the specific energy absorption (SEA). We also investigated the effects of connection rivets. Aluminum rivets were severed and had little effect on the load curve while steel rivets did not shear but cut the composite tube into strips, resulting in a lower sustained load because failure was induced. A set of shock absorbers with larger strokes was tested for use in the legged landing gear of a drone assumed to crash with a speed of 10 m/s, energy of 5000 J, and overload of less than 25 g. The maximum SEA of the absorbers, including the two caps, was 20 kJ/kg.
A New Generalized Family of Lifetime Distributions Motivated by Parallel and Series
 Structures

Any given system can be represented as a parallel arrangement of series structures. Motivated by this fact, a general family of distributions is introduced, by adding two extra parameters to a distribution (called baseline distribution),twice compounding with power series distribution. The new family can allow various hazard rate curves that compete well with other alternatives in fitting real data. We derive formal expressions for its moments, generating function, mean residual lifetime and other reliability functions. Certain characterizations of the new family are presented in terms of the ratio of two truncated moments as well as based on the hazard rate function. The maximum likelihood estimation technique is used to estimate the model parameters and a simulation study is conducted to investigate the performance of the maximum likelihood estimates. Finally, two applications of the model with real data sets are presented to illustrate the usefulness of the proposed distribution.
Optical characterization of porcine tissues from various organs in the 650–1100 nm range using time-domain diffuse spectroscopy

We present a systematic characterization of the optical properties (µa and µs’) of nine representative ex vivo porcine tissues over a broadband spectrum (650-1100 nm). We applied time-resolved diffuse optical spectroscopy measurements for recovering the optical properties of porcine tissues depicting a realistic representation of the tissue heterogeneity and morphology likely to be found in different ex vivo tissues. The results demonstrate a large spectral and inter-tissue variation of optical properties. The data can be exploited for planning or simulating ex vivo experiments with various biophotonics techniques, or even to construct artificial structures mimicking specific pathologies exploiting the wide assortment in optical properties.
Insurance status versus hospitalized patient outcomes with pulmonary hypertension: National Hospital Discharge Survey, 2000-2010

Pulmonary Hypertension is a common complication of heart failure or obstructive pulmonary disease. The National Hospital Discharge Survey, the largest national inpatient-based survey, was used for complex samples logistic regression modeling. Findings from this study demonstrated that insurance status had a statistically significant association with hospital related mortality rates. Findings Mean age (SE) = 69.6 (0.20)
Bilgi İşlemsel Düşünme Becerisinin Değerlendirilmesine İlişkin Sistematik Alanyazın Taraması

Computational thinking (CT) has been added to the list of expected skills from individuals in parallel with technological advances. There is no fully-accepted, valid, and reliable methods to evaluate this skill which can be defined as “problem solving with using technology”. Therefore, identifying the different assessment methods, revealing their differences, and discussing the positive/negative aspects of these methods will contribute to the new assessment methods to be developed. In order to achieve this purpose, 47 studies that meet the inclusion/exclusion criteria from Scholar Google, Web of Science and ERIC databases were selected for analysis. After the content analysis, these studies were examined under the following headings: i)the most evaluated CT components, ii)data collection methods, iii)data analysis methods, iv)content of data collection tools, v)audience, and vi)validity and reliability studies. According to the results of the analysis, the most evaluated components of CT can be listed as; abstraction, algorithmic thinking, decomposition, testing, debugging and data literacy. The top five data collection methods were tasks, multiple choice questions, projects, open-ended questions, and interviews. The data collected by using these methods were mostly analyzed with Likert scale/rubrics. The contents of the data collection tools consist of programming, perception/attitude, mathematics, daily life problems, and general ability. The target group of the assessment methods was mostly the K-12 level. Additionally, there are 6 out of 47 studies which include both validity and reliability were obtained. The advantages/disadvantages of different assessment methods were discussed. Also, suggestions for future studies about the methods of evaluating CT are presented.
Low Power 11T Adder Comparator Design

Comparator is a basic arithmetic component in a digital system and adders are the basic block of processor unit, the performance of adder will improve the system performance. The proposed 11T adder comparator is consists of three main components, namely XOR, inverter, and MUX logic. The circuit is designed and implemented based on top-down approach with 11 transistors. The proposed cell can be used at higher temperature with minimal power loss. It also gives faster response for the carry output. The proposed comparator circuit shows 63.80% improvement in power consumption than other circuits.
Analisis sudut panel solar cell terhadap daya output dan efisiensi yang dihasilkan

One of the natural potentials as a source of electrical energy is solar energy. The sun is the main energy source for most of the processes that occur on the surface of the earth. Solar radiation received by the earth's surface is a fundamental input for many aspects, mainly an important parameter in the application of solar cells as electricity generation. Sun cells are devices that can convert sunlight into electrical energy. In this study the data collection of solar cell panel data is collected which includes the solar radiation data, the voltage data generated and the electric current data generated at each variation of the tilt angle 0o, 8o, and 16o. This study aims to discover the effect of changes in the slope angle of solar cell panels on the efficiency of solar power generation systems. The study method used is an experimental development method which is carried out by using the tilt angle variation of the solar panel. The angle used by taking the tilt angle of the solar panel on the negative x-axis which aims to find the maximum tilt angle value. From the test results of 50 Watt Peak (WP) solar power plant installation, it can be concluded that the highest efficiency occurs at an angle of 16o and at 09:00 with a value of 46.076 %, then the second occurs at an angle of 8o and at 09:00 with a value of 45,052 %, then the lowest efficiency occurs at a slope angle of 0o and at 09:00 with a value of 43,986 %. Keywords: Angles, 50 WP panel, solar cell, power output, & efficiency.
A Blockchain-SDN-Enabled Internet of Vehicles Environment for Fog Computing and 5G Networks

The goal of intelligent transport systems (ITSs) is to enhance the network performance of vehicular ad hoc networks (VANETs). Even though it presents new opportunities to the Internet of Vehicles (IoV) environment, there are some security concerns including the need to establish trust among the connected peers. The fifth-generation (5G) communication system, which provides reliable and low-latency communication services, is seen as the technology to cater for the challenges in VANETs. The incorporation of software-defined networks (SDNs) also ensures an effective network management. However, there should be monitoring and reporting services provided in the IoV. Blockchain, which has decentralization, transparency, and immutability as some of its properties, is designed to ensure trust in networking platforms. In that regard, this article analyzes the combination of blockchain and SDN for the effective operation of the VANET systems in 5G and fog computing paradigms. With managerial responsibilities shared between the blockchain and the SDN, it helps to relieve the pressure off the controller due to the ubiquitous processing that occurs. A trust-based model that curbs malicious activities in the network is also presented. The simulation results substantially guarantee an efficient network performance, while also ensuring that there is trust among the entities.
POLYCARBONATE BASED OVERLAPPED ARCHITECTURE FOR LANDSCAPE AND PORTRAIT MODES OF MMWAVE 5G SMARTPHONE

—In this paper, a low-cost polycarbonate substrate is used for the design of antennas operating in the 28 GHz band. First, a corner bent inset fed patch antenna is proposed with a forward gain of 7 dBi and a front to back ratio of more than 18 dB indicating minimal radiation towards the user post-integration with a mobile terminal. In order to cater to the landscape mode, a corner bent tapered slot antenna is also proposed with a gain of 7 dBi. An overlapped architecture is investigated to demonstrate orthogonal pattern diversity with an eﬀective radiating volume of 0.12 λ 3 , a port to port distance of 0.13 λ at 28 GHz, and mutual coupling of less than 27 dB without deterioration in the pattern integrity of the corresponding modes. Detailed simulated and measured results are presented with justiﬁcation.
Macroeconomic Relationships for Russian Economic Regions

This paper deals with macroeconomic relationships for Russian economic regions. An economic region is the main item of the regional statistics of the Russian Federation. Nowadays there are near 90 of regions and according to classification these can be industrial, agro- or subsidized regions A study is based upon the disaggregated macromodel for the Russian economic region. Then classification of the Russian regions by types of economic activity is made. Finally, we construct macroeconomic relationships for Russian economic regions specific by their type of economic activity This paper can be considered as the first attempt to create the model of the Russian regional level.
Characteristics of Gamblers Who Use the French National Problem Gambling Helpline and Real-Time Chat Facility: Longitudinal Observational Study

Background Problem gambling is a growing public health issue that is characterized by low rates of face-to-face help seeking. Helplines and real-time chat services could reduce shortfalls in treatment. Objective This study aimed to (1) describe the characteristics of gamblers contacting a government-funded help service, (2) study the evolution of their characteristics over time, (3) evaluate the differences between subgroups (ie, gender, media used for gambling, and media used to contact the service), and (4) explore factors influencing referral to care. Methods From January 2011 to December 2015, a government-funded gambling helpline and real-time chat website in France received 9474 contacts from gamblers. Counselors filled in a form for each contact, collecting demographics, gambling characteristics, and referrals. Time-series analyses were performed. Univariate logistic models were used to assess differences across subgroups. A multivariate analysis was conducted to determine the variables related to an actual referral. Results Gamblers were predominantly men (7017/9474, 74.07%); the average age was 41 years (SD 14). Compared with the men, the women were older (mean 50.7 years, SD 14.0 vs mean 37.9 years, SD 13.0, respectively; P<.001), were more often solely offline gamblers (1922/2457, 78.23% vs 4386/7017, 62.51%, respectively; P<.001), and had different gambling patterns. Compared with helpline contacts, real-time chat contacts were more often men (124/150, 82.7% vs 3643/4881, 74.64%, respectively; P=.04), younger (mean 32.8 years, SD 12.9 vs mean 41.3 years, SD 14.3, respectively; P<.001), more often poker gamblers (41/150, 27.3% vs 592/4881, 12.13%, respectively; P<.001), and more often web-based gamblers (83/150, 55.3% vs 1462/4881, 29.95%, respectively; P<.001). Referral was positively associated with betting (adjusted odds ratio [aOR] 1.46, 95% CI 1.27-1.67; P<.001), casino gambling (aOR 1.38, 95% CI 1.21-1.57; P<.001), scratch cards (aOR 1.83, 95% CI 1.58-2.12; P<.001), poker gambling (aOR 1.35, 95% CI 1.14-1.61; P<.001), lottery (aOR 1.27, 95% CI 1.03-1.56; P=.03), weekly gambling (aOR 1.73, 95% CI 1.40-2.15; P<.001), request for referral (aOR 17.76, 95% CI 14.92-21.13; P<.001), and a history of suicide attempts (aOR 2.13, 95% CI 1.51-3.02; P<.001), and it was negatively associated with web-based gambling (aOR 0.86, 95% CI 0.75-0.98; P=.030) and refusal to be referred (aOR 0.35, 95% CI 0.26-0.49; P<.001). Conclusions The governmental helpline and chat contacts included a broad range of sociodemographic profiles. Compared with the helpline, real-time chat exchanges reached a younger population of web-based gamblers, which was the target population. The development of the gambling helpline and help online website is a considerable challenge for the future.
Matrix metalloproteinase-9 and MMP-2 functional promoter polymorphisms and end-stage renal disease in dialysis patients: Correlation with oxidative stress marker

Background: End-stage renal disease (ESRD) is a chronic clinical condition that starts with an initial damage and ultimately develops into a complete loss of kidney function with an unknown mechanism. MMP-9C1562T (rs243866) and MMP-2G1575A (rs3918242) polymorphisms in the promoter region are associated with the incidence of many diseases including cardiovascular, hypertension, chronic kidney disease (CKD), and diabetes mellitus which result in ESRD. Objective: This study was conducted to investigate the possible effect of MMP-9C1562T and MMP-2G1575A polymorphisms on the incidence of ESRD in Kermanshah population as well as their correlation with the serum level of malondialdehyde (MDA). Materials and Methods: The present study was conducted through a case-control method. A total of 136 unrelated ESRD patients and 137 unrelated healthy individuals as the control group matched with patients based on the age and sex. MMP-9C1562T and MMP-2G1575Apolymorphisms were determined using the PCR-RFLP method and serum levels of MDA by High performance liquid chromatography. Results: We found that the frequency of MMP-9C1562T and MMP-2G1575A functional promoter genotypes and alleles in ESRD patients was significantly different compared to the control group. MMP-9C1562T and MMP-2G1575A alleles act synergistically to increase the risk of ESRD by 1.41 times (P = 0.008). In addition, results of this study demonstrated that there is a significant increase in the serum level of MDA in the presence of a dominant model of MMP-9 genotypes (T/T+ C/T vs C/C) and MMP-2 genotypes (A/A+G/A vs G/G) in ESRD patients compared to controls also increased the risk of ESRD 1.36 and 1.4 folds, respectively. Conclusion: We found in this study that MMP-9C1562T and MMP-2G1575A alleles synergistically increase the risk of ESRD but also raise the serum level of MDA in ESRD patients. This information may be important in the evaluation of ESRD progression and in the elucidation of the mechanisms of the disease pathogenesis. Further studies with larger sample sizes and different ethnicities are necessary to confirm these findings.
Prospective study of 50 cases of perforative peritonitis a single centre experience

Perforative peritonitis are most common surgical emergencies seen worldwide. Perforative peritonitis is a type of secondary peritonitis which was caused by perforation of intraperitoneal hollow viscera. Majority of the patients presents late with purulent peritonitis and septicaemia. Despite improvement in diagnosis, antibiotics, surgical treatments and intensive care support, it is still an important cause of mortality in surgical patients. Considering such a high magnitude of the disease, this study was done to know the spectrum of etiology, clinical presentation, management and treatment outcomes of patients admitted with perforation peritonitis in our hospital.
Effect of interferential current therapy versus cryotherapy on knee pain in osteoporotic postmenopausal women: a single-blind randomized controlled trial

Introduction. Postmenopausal knee pain, due to lack of oestrogen, is an important medical and socioeconomic problem that affects the quality of life. The most important symptom is pain during walking. The purpose of the study was to compare the effect of interferential current therapy vs. cryotherapy on knee pain in postmenopausal women. Methods. overall, 30 postmenopausal women with knee pain, aged 50–60 years, were assigned randomly into 2 equal groups. Group A received interferential current therapy for 4 weeks, while group B received cryotherapy for 4 weeks. General knee pain severity, knee pain severity during walking, and femoral neck bone mineral density (BMd) were assessed before and after treatment through visual analogue scale, walking pain scale, and dual-energy X-ray absorptiometry, respectively. Results. Statistical analysis revealed a significant reduction in knee pain severity generally as well as during walking and a significant increase of femoral neck BMd after treatment in both groups (p = 0.0001). When comparing both groups post-treatment, there was a highly significant reduction in knee pain severity generally as well as during walking (p = 0.0001) in favour of group A, while a statistically non-significant difference was observed in the increase in femoral neck BMd between the groups (p > 0.05). Conclusions. interferential current therapy is more effective than cryotherapy in reducing the severity of knee pain, both generally and during walking, in osteoporotic postmenopausal women.
Modeling of Neuropathic Bladder Lesions Diagnosis Using Neural Network

: The urinary bladder is probably the only visceral smooth-muscle organ that is under complete voluntary control from the cerebral cortex. Normal bladder function requires interaction of sensory and motor components of both the somatic and autonomic nervous system. Recent advances in the understanding of neural pathways and neurotransmitters have shown that most levels of the nervous system are involved in the regulation of voiding function. Therefore many neuralgic diseases causes changes in the bladder function [1] . In this paper, Number of patients selected from Ibn-Alkiff hospital (for treatment and rehabilitation of Spinal cord injuries), in Baghdad, who were referred to the urology department for complains of some urinary symptoms, and examined by cystometry in the urology out patient and/or inpatient department. These cases were selected randomly who already consult these departments and were followed up and managed by the expert urosurgeons. They were adults complaining of general neuropathic bladder disorder symptoms like dysuria, urinary incontinence and were diagnosed as having neuropathic bladder disease, whether: And finally they were examined by cystometry. The collections of data from patients were about:
Reduction of Milk Protein Antigenicity by Enzymatic Hydrolysis and Fermentation. A Review

ABSTRACT Cow milk proteins are among the major food allergens. Reducing their antigenicity through enzymatic hydrolysis and microbial fermentation has received much attention. Both treatments are based on proteolysis of milk protein and deactivation of their IgE binding epitopes. Reduction of antigenicity is mainly controlled by the source and specificity of the enzyme used and the reaction conditions. The whole proteolytic system of the enzyme used is involved in protein hydrolysis and strains of lactic acid bacteria exhibit variable reductions on milk proteins antigenicity. Both treatments can be considered as promising strategies to manage cow milk allergy.
MOTIVATION AND TOURISTS’ LOYALTY IN PERFORMING ARTS FESTIVALS: THE MEDIATOR ROLE OF QUALITY AND SATISFACTION

Festival tourism has been growing considerably over the years, acquiring a prominent position and with strong popularity in society. Festivals and/or events promote a cultural exchange at international, national and local levels, with the opportunity for cultural sharing, from history and tradition, culinary and drinks, music and dance, involving all publics (organization, services, artists, participants and local inhabitants). Festivals are recognized as an effective strategy for host destinations promoting economic, social and cultural development. The present study aims to test the mediator role of quality and satisfaction in the relationship between the motivation in the choice of performing arts festivals and the loyalty of the tourists. The sample consisted of 532 respondents, collected at two performing arts festivals: Andancas festival (Portugal) and La Sierra festival (Spain). The results of the study show that tourists motivated to attend performing arts festivals, tend to perceive the festival as having quality, and are satisfied with the service, which in turn tend to revisit and recommend the festival. The study discusses the implications of the obtained results. It also presents limitations and suggests future studies.
RANDOMIZED DOUBLE BLIND STUDY ON OBSTERTIC AND FETAL OUTCOME WITH TWO DIFFERENT DOSES OF EPIDURALLY ADMINISTERED BUPIVACAINE IN COMBINED SPINAL EPIDURAL LABOUR ANALGESIA

Prospective randomized double blind study of combined spinal epidural labour analgesia for vaginal delivery with intrathecal fentanyl 25 μg +epidural 0.0625% bupivacaine 10 ml with 2μg of fentanyl/ml versus intra thecal fentanyl 25μg+epidural 0.1% bupivacaine 10 ml with 2μg of fentanyl/ml was planned to compare duration and progression of different stages labor and mode of delivery in both the techniques and Intra partum fetal heart rate monitoring and newborn evaluation with APGAR score to study the effect of them on obstetric and fetal outcome. Sixty patients were selected and divided into two groups Group I: received intrathecal fentanyl 25μg+epidural 0.1% bupivacaine 10 ml with 2μg of fentanyl/ml Group II: received intrathecal fentanyl 25 μg +epidural 0.0625% bupivacaine 10 ml with 2μg of fentanyl/ml. Partogram, fetal tocography and APGAR score was recorded in both groups . Duration of labour was not prolonged by combined spinal epidural analgesia, but actually it decreases the duration of labour All babies were delivered by normal vaginal delivery except one in group I which was delivered by forceps delivery. No parturients in both the groups underwent caesarean delivery. No babies required resuscitation and neonatal intensive care unit admission.