LLukas22/scidocs huggingface dataset:
The causal Model of effective factors on Intention to use of information technology among payam noor and Traditional universities students

The objective of this study is presenting the causal modeling of intention to use technology among university student. Correlation is used as the method of research. Instrument of this study is standard questionnaire. The collected data is analyzed with AMOS software. The result indicate that facilitative condition, cognitive absorption, perceived enjoyment, perceived ease of use, and perceived usefulness have significant and direct effect on intention to use technology. Also, facilitative condition, cognitive absorption, perceived enjoyment, perceived ease of use and computer playfulness have significant and direct of effect on perceived usefulness. Facilitative condition, cognitive absorption, perceived enjoyment, and playfulness have significant and direct effect on perceived ease of use. [Hossien Zare,Sedigheh Yazdanparast. The causal Model of effective factors on Intention to use of information technology among payam noor and Traditional universities students. Life Sci J 2013;10(2):46-50]. (ISSN:1097-8135). http:www.lifesciencesite.com. 8
Development of miniaturized light endoscope-holder robot for laparoscopic surgery

PURPOSE
We have conducted experiments with an innovatively designed robot endoscope holder for laparoscopic surgery that is small and low cost.


MATERIALS AND METHODS
A compact light endoscope robot (LER) that is placed on the patient's skin and can be used with the patient in the lateral or dorsal supine position was tested on cadavers and laboratory pigs in order to allow successive modifications. The current control system is based on voice recognition. The range of vision is 360 degrees with an angle of 160 degrees . Twenty-three procedures were performed.


RESULTS
The tests made it possible to advance the prototype on a variety of aspects, including reliability, steadiness, ergonomics, and dimensions. The ease of installation of the robot, which takes only 5 minutes, and the easy handling made it possible for 21 of the 23 procedures to be performed without an assistant.


CONCLUSION
The LER is a camera holder guided by the surgeon's voice that can eliminate the need for an assistant during laparoscopic surgery. The ease of installation and manufacture should make it an effective and inexpensive system for use on patients in the lateral and dorsal supine positions. Randomized clinical trials will soon validate a new version of this robot prior to marketing.
When does salespeople ’ s customer orientation lead to customer loyalty ? The differential effects of relational and functional customer orientation

Is a customer orientation universally effective for salespeople? Or does its effectiveness depend on the selling situation? While previous research has largely neglected this question, this study investigates contextual influences on the link between customer-oriented behaviors and customer loyalty. To do so, it takes a role theory perspective on salesperson customer orientation by distinguishing functional customer orientation and relational customer orientation. It then investigates which type of customer orientation is more effective with regard to establishing and maintaining customer loyalty, given the specific situation. Here, the authors analyze the moderating impact of a customer’s communication style (task orientation and interaction orientation) and specific characteristics of a supplier’s products (product individuality, importance, complexity, and brand strength). Multilevel analysis of triadic data from a cross-industry survey of 56 sales managers, 195 sales representatives, and 538 customers provides empirical support for positive, non significant, and even adverse effects of salespeople’s customer-oriented behaviors on customer loyalty, depending on contextual variables.
Factors related to orthostatic hypotension in Parkinson's disease.

INTRODUCTION
Orthostatic hypotension (OH), a frequent feature of Parkinson's disease (PD) can contribute to falls and is usually related to the disease itself and/or to drugs.


OBJECTIVES
To explore factors related to OH and to assess the concordance between abnormal blood pressure (BP) fall after standing and the presence of orthostatic symptoms.


METHODS
Non-demented, non-operated idiopathic PD out-patients were questioned about the presence of orthostatic symptoms. Afterward, BP was measured 5-min after lying down and for 3-min after standing up. OH was defined as systolic and/or diastolic BP fall ≥ 20 and/or 10 mmHg after standing. Patients were further evaluated by the Unified PD Rating Scale (UPDRS) and their medications were recorded.


RESULTS
103 patients were included in this study (mean age = 66 ± 1 years, mean disease duration = 9 ± 1 years; mean UPDRS II+III in ON-state = 37 ± 2 points). Forty-one subjects (40%) reported the presence of orthostatic symptoms during the previous week and 38 (37%) had OH according to manometric definition. Independent factors related to OH, as assessed by logistic regression were age >68 years (OR, 95% CI=3.61, 1.31-9.95), polypharmacy (defined as intake of >5 medications, OR = 3.59, 1.33-9.69), amantadine (7.45, 1.91-29.07) or diuretics (5.48, 1.10-54.76), whereas the consumption of entacapone was protective (0.20, 0.05-0.76). The agreement between abnormal BP fall and presence of orthostatic symptoms was poor (kappa = 0.12 ± 0.1, p = 0.23).


CONCLUSION
OH was significantly related to older age, polypharmacy and amantadine or diuretics intake, while entacapone exposure appeared to reduce the risk of OH. Low concordance between OH and orthostatic symptoms was observed.
Treating equine paraphimosis.

Paraphimosis—the inability to retract the penis fully into the preputial cavity—in stallions is an emergency demanding immediate, aggressive medical treatment. Failure to treat paraphimosis can have catastrophic consequences for a breeding stallion. FIGURE 1 shows the normal penile and preputial anatomy. Paraphimosis commonly begins as penile prolapse followed by development of excessive preputial edema that prevents retraction of the penis into the preputial cavity. If this condition is untreated, a vicious cycle ensues, compounding the severity of the condition. The longer the penis remains prolapsed, the more lymphatic and venous drainage are compromised, resulting in edema of the internal preputial lamina (FIGURE 2). This edema can become severe enough that the preputial ring constricts, exacerbating distal penile swelling. The exposed penile and preputial tissues are fragile and, if unprotected, can easily be damaged by pressure necrosis and exposure to environmental elements. Excoriation, infection, and/or sloughing of the associated tissue may follow (FIGURE 3). In cases of prolonged penile and preputial prolapse, fibrosis and damage to the internal pudendal nerves may result in permanent penile prolapse or paralysis if treatment is not successful.1–3 Etiology The most common etiology precipitating paraphimosis is traumatic injury to the prepuce and/or penis during breeding activities. These injuries can result in or be associated with lacerations and/or hematoma formation. Other potential etiologies include the use of phenothiazine tranquilizers, severe debilitation, neurologic conditions such as those associated with equine herpesvirus-1 infection, and systemic diseases such as purpura hemorrhagica and dourine. Paraphimosis can also be a sequela of priapism (persistent erection) or penile paralysis.1–3
Houston, we have a problem...: a survey of actual problems in computer games development

This paper presents a survey of problems found in the development process of electronic games. These problems were collected mainly from game postmortems and specialized litterature on game development, allowing a comparison with respect to well-known problems in the traditional software industry.
Comparative study of the viscoelastic mechanical behavior of agarose and poly(ethylene glycol) hydrogels.

This study presents a comparative investigation into differences in the mechanical properties between two hydrogels commonly used in cartilage tissue engineering [agarose vs. poly(ethylene glycol) (PEG)], but which are formed through distinctly different crosslinking mechanisms (physical vs. covalent, respectively). The effects of hydrogel chemistry, precursor concentration, platen type (nonporous vs. porous) used in compression bioreactors, and degradation (for PEG) on the swelling properties and static and dynamic mechanical properties were examined. An increase in precursor concentration resulted in decreased equilibrium mass swelling ratios but increased equilibrium moduli and storage moduli for both hydrogels (p < 0.05). Agarose displayed large stress relaxations and a frequency dependence indicating its viscoelastic properties. Contrarily, PEG hydrogels displayed largely elastic behavior with minimal stress relaxation and frequency dependence. In biodegradable PEG hydrogels, the largely elastic behavior was retained during degradation. The type of platen did not affect static mechanical properties, but porous platens led to a reduced storage modulus for both hydrogels implicating fluid flow. In summary, agarose and PEG exhibit vastly different mechanical behaviors; a finding largely attributed to differences in their chemistries and fluid movement. Taken together, these design choices (hydrogel chemistry/structure, loading conditions) will likely have a profound effect on the tissue engineering outcome.
Using real-time Java for industrial robot control

Safe languages like Java provide a much more programmer-friendly environment than the low-level languages in which real-time and embedded software have traditionally been implemented. However, an obstacle for widespread use of Java in control applications has been the predictability and real-time performance of garbage collection, and the cumbersome memory management associated with RTSJ No-HeapRealtimeThreads. The current version of the Sun Java Real-Time System includes a real-time garbage collector, and therefore, it is interesting to examine its feasibility for robot motion control.
 We have implemented a motion control system, and an application, for an ABB IRB 340 industrial robot entirely in real-time Java, using standard computer hardware, off-the-shelf EtherCAT servo drives, and the Sun Java Real-Time System 2.0 on Solaris 10. To our knowledge, this is the first robot control system implemented entirely in Java and executed on a certified virtual machine.
Utility of the SENIORS elderly heart failure risk model applied to the RICA registry of acute heart failure.

BACKGROUND
Heart failure (HF) is predominantly a disease of the elderly. Reliable risk stratification would help in the management of this population, but no model has been well evaluated in elderly HF patients in both acute and chronic settings and not being restricted by ejection fraction. To evaluate the utility of the SENIORS risk model, developed from a clinical trial of elderly patients with chronic HF, in an independent cohort (National Spanish Registry: RICA) of elderly acute HF patients.


METHODS
We applied the SENIORS risk model to 926 patients in RICA to estimate risk at one year of a) composite outcome of all-cause mortality or cardiovascular hospital admission and b) all-cause mortality.


RESULTS
In the RICA registry mean age was 78years, mean ejection fraction 51% and 87% were in NYHA II and III. At one year death/CV hospitalization occurred in 31.9% and all-cause mortality in 19.5%. The risk model provided good separation of Kaplan Meier curves stratified by tertile for death/CV hospitalization and all-cause mortality. The observed versus expected rates of death/CV hospitalization in the lowest, middle and highest risk tertiles were (%) 34/24, 45/41 and 57/67, and for death 13/16, 32/38 and 44/70 respectively. C-statistic for all-cause mortality or CV hospitalization was 0.60 and for all-cause mortality 0.66.


CONCLUSION
The SENIORS risk model was a reliable tool for relative risk stratification among acute heart failure patients in a "real world" registry, but predicted versus observed risk showed some variability. The model provides a useful basis for clinical risk prediction.
Psychiatric and psychological aspects in the Ehlers-Danlos syndromes.

There is increasing amount of evidence pointing toward a high prevalence of psychiatric conditions among individuals with hypermobile type of Ehlers-Danlos syndrome (JHS/hEDS). A literature review confirms a strong association between anxiety disorders and JHSh/hEDS, and there is also limited but growing evidence that JHSh/hEDS is also associated with depression, eating, and neuro-developmental disorders as well as alcohol and tobacco misuse. The underlying mechanisms behind this association include genetic risks, autonomic nervous system dysfunction, increased exteroceptive and interoceptive mechanisms and decreased proprioception. Recent neuroimaging studies have also shown an increase response in emotion processing brain areas which could explain the high affective reactivity seen in JHS/hEDS. Management of these patients should include psychiatric and psychological approaches, not only to relieve the clinical conditions but also to improve abilities to cope through proper drug treatment, psychotherapy, and psychological rehabilitation adequately coupled with modern physiotherapy. A multidimensional approach to this "neuroconnective phenotype" should be implemented to ensure proper assessment and to guide for more specific treatments. Future lines of research should further explore the full dimension of the psychopathology associated with JHS/hEDS to define the nature of the relationship. © 2017 Wiley Periodicals, Inc.
Reliability and validity of the Chinese version of the Caregiver Reaction Assessment.

AIMS
The aim of this study was to examine the reliability and validity of the Chinese version of the Caregiver Reaction Assessment, as part of a psychosocial study among family caregivers of cancer patients.


METHODS
Participants were derived from the Second Affiliated Hospital of China Medical University in Shenyang, China. The research established the internal consistent reliability, test-retest reliability and construct validity.


RESULTS
The research comprised 400 family caregivers. The Chinese version of the Caregiver Reaction Assessment showed adequate internal consistency reliability, test-retest reliability and appropriate construct validity. After adjusting items 4, 8, 15 and 18, confirmatory factor analysis confirmed the five new factors of the Chinese version of the Caregiver Reaction Assessment had goodness of fit.


CONCLUSIONS
These findings suggest that the Chinese version of the Caregiver Reaction Assessment is a reliable and valid instrument for measuring specific aspects of the caregiving experience in the Chinese population.
Systematic Design and Modeling of a OTA-C Filter for Portable ECG Detection

This study presents a systematic design of the fully differential operational transconductance amplifier-C (OTA-C) filter for a heart activities detection apparatus. Since the linearity and noise of the filter is dependent on the building cell, a precise behavioral model for the real OTA circuit is created. To reduce the influence of coefficient sensitivity and maintain an undistorted biosignal, a fifth-order ladder-type lowpass Butterworth is employed. Based on this topology, a chip fabricated in a 0.18- mum CMOS process is simulated and measured to validate the system estimation. Since the battery life and the integration with the low-voltage digital processor are the most critical requirement for the portable diagnosis device, the OTA-based circuit is operated in the subthreshold region to save power under the supply voltage of 1V. Measurement results show that this low-voltage and low-power filter possesses the HD3 of -48.9 dB, dynamic range (DR) of 50 dB, and power consumption of 453 nW. Therefore, the OTA-C filter can be adopted to eliminate the out-of-band interference of the electrocardiogram (ECG) whose signal bandwidth is located within 250 Hz.
Template-Independent News Extraction Based on Visual Consistency

Wrapper is a traditional method to extract useful information from Web pages. Most previous works rely on the similarity between HTML tag trees and induced template-dependent wrappers. When hundreds of information sources need to be extracted in a specific domain like news, it is costly to generate and maintain the wrappers. In this paper, we propose a novel templateindependent news extraction approach to easily identify news articles based on visual consistency. We first represent a page as a visual block tree. Then, by extracting a series of visual features, we can derive a composite visual feature set that is stable in the news domain. Finally, we use a machine learning approach to generate a template-independent wrapper. Experimental results indicate that our approach is effective in extracting news across websites, even from unseen websites. The performance is as high as around 95% in terms of F1-value.
PID Controller Tuning Using Evolutionary Algorithms

This paper presents the implementation of PID controller tuning using two sets of evolutionary techniques which are differential evolution (DE) and genetic algorithm (GA). The optimal PID control parameters are applied for a high order system, system with time delay and non-minimum phase system. The performance of the two techniques is evaluated by setting its objective function with mean square error (MSE) and integral absolute error (IAE). Both techniques will compete to achieve the globally minimum value of its objective functions. Meanwhile, reliability between DE and GA in consistently maintaining minimum MSE is also been studied. This paper also compares the performance of the tuned PID controller using GA and DE methods with Ziegler-Nichols method. Key-Words: Differential Evolution, Genetic Algorithm, PID Controller, Ziegler-Nichols
Physical function and its response to exercise: associations with cytokine gene variation in older adults with knee osteoarthritis.

BACKGROUND
We determined whether physical function and its response to exercise training are associated with polymorphisms in cytokine genes (interleukin-6 [IL-6] -174 G/C; tumor necrosis factor alpha [TNFalpha] -308 G/A and -238 G/A; and TNFalpha receptors [TNFR]1 +36 A/G, TNFR2 +676 T/G, and TNFR2 +1663 A/G), in 214 older (> or =60 years), overweight (body mass index > or =28 kg/m(2)) individuals with knee osteoarthritis.


METHODS
Physical function (walking distance, stair-climb time, self-reported disability) was measured before and after an 18-month randomized, controlled exercise trial involving walking and weight lifting 3 days/week.


RESULTS
In cross-sectional analyses, baseline walking distance was greater in individuals homozygous for the major G allele at IL-6 -174 compared to individuals with at least one C allele (p = .05). Both walking distance (p =.02) and stair-climb time (p = .003) were better in individuals homozygous for the major G allele of the TNFalpha -308 polymorphism compared to those with at least one A allele. Walking distance was better (p = .02), and stair-climb time tended to be better (p = .06), in individuals homozygous for the major T allele of the TNFR2 +676 polymorphism. No associations were seen with self-reported physical disability nor with the other polymorphisms. In response to exercise, there was a significant interaction between TNFalpha -308 genotype and exercise treatment on 6-month changes in stair-climb time (p = .007), and on 18-month changes in self-reported physical disability (p = .01), such that individuals with an A allele showed greater improvement in response to exercise.


CONCLUSIONS
Walking distance and stair climbing speed are partly influenced by genetic variation in the IL-6 and TNFalpha genes in older individuals with knee osteoarthritis.
Diclofenac Reduces the Incidence of AcutePancreatitis After Endoscopic Retrograde Cholangiopancreatography

BACKGROUND & AIMS
Acute pancreatitis following endoscopic retrograde cholangiopancreatography presents a unique opportunity for prophylaxis and early modification of the disease process because the initial triggering event is temporally well defined and takes place in the hospital. We report a prospective, single-center, randomized, double-blind controlled trial to determine if rectal diclofenac reduces the incidence of pancreatitis following cholangiopancreatography.


METHODS
Entry to the trial was restricted to patients who underwent endoscopic retrograde pancreatography or had manometrically verified sphincter of Oddi hypertension. Immediately after endoscopy, patients were given a suppository containing either 100 mg diclofenac or placebo. Estimation of serum amylase levels and clinical evaluation were performed in all patients.


RESULTS
A total of 220 patients entered the trial, and 110 received rectal diclofenac. Twenty-four patients developed pancreatitis (11%), of whom 7 received rectal diclofenac and 17 received placebo (P < 0.05).


CONCLUSIONS
This trial shows that rectal diclofenac given immediately after endoscopic retrograde cholangiopancreatography can reduce the incidence of acute pancreatitis.
Shear stress stimulates phosphorylation of protein kinase A substrate proteins including endothelial nitric oxide synthase in endothelial cells

Fluid shear stress plays a critical role in vascular health and disease. While protein kinase A (PKA) has been implicated in shear-stimulated signaling events in endothelial cells, it remains unclear whether and how PKA is stimulated in response to shear stress. This issue was addressed in the present study by monitoring the phosphorylation of endogenous substrates of PKA. Shear stress stimulated the phosphorylation of cAMP responsive element binding protein (CREB) in a PKA-dependent manner. Western blot analysis using the antibody reactive against the consensus motif of PKA substrates detected two proteins, P135 and P50, whose phosphorylation was increased by shear stress. The phosphorylation of P135 was blocked by a PKA inhibitor, H89, but not by a phosphoinositide 3-kinase inhibitor, wortmannin. Expression of a constitutively active PKA subunit stimulated P135 phosphorylation, supporting the potential of P135 as a PKA substrate. P135 was identified as endothelial nitric oxide synthase (eNOS) by immunoprecipitation study. PKA appeared to mediate shear stress-stimulated eNOS activation. Shear stress stimulated intracellular translocation of PKA activity from 'soluble' to 'particulate' fractions without involving cellular cAMP increase. Taken together, this study suggests that shear stress stimulates PKA-dependent phosphorylation of target proteins including eNOS, probably by enhancing intracellular site-specific interactions between protein kinase and substrates.
The Future: Plug and Pray?

In his keynote speech at the 1998 International Test Conference, held last November in Washington, D.C., the author presented a view of our increasing dependence on electronic systems and the impact this is likely to have on the way we design and test new products. Here, he summarizes his major points.