Miracle-dz/UniFAR-FTUs huggingface dataset:
Stress analysis of a complete maxillary denture under various drop impact conditions: a 3D finite element study

Complete maxillary dentures are one of the most economic and easy ways of treatment for edentulous patients and are still widely used. However, their survival rate is slightly above three years. It is presumed that the failure reasons are not only due to normal fatigue but also emerge from damage based on unavoidable improper usage. Failure types other than long-term fatigue, such as over-deforming, also influence the effective life span of dentures. A hypothesis is presumed, stating that the premature/unexpected failures may be initiated by impact on dentures, which can be related to dropping them on the ground or other effects such as biting crispy food. Thus, the behavior of a complete maxillary denture under impact loading due to drop on a rigid surface was investigated using the finite element method utilizing explicit time integration and a rate-sensitive elastoplastic material model of polymethylmethacrylate (PMMA). Local permanent deformations have been observed along with an emphasis on frenulum region of the denture, regardless of the point of impact. Contact stresses at the tooth–denture base were also investigated. The spread of energy within the structure via wave propagation is seen to play a critical role in this fact. Stress-wave propagation is also seen to be an important factor that decreases the denture's fatigue life.
Stromal cell‐derived factor 1‐mediated CXCR4 signaling in rat and human cortical neural progenitor cells

Stromal cell‐derived factor 1 (SDF‐1) and the chemokine receptor CXCR4 are highly expressed in the nervous system. Knockout studies have suggested that both SDF‐1 and CXCR4 play essential roles in cerebellar, hippocampal, and neocortical neural cell migration during embryogenesis. To extend these observations, CXCR4 signaling events in rat and human neural progenitor cells (NPCs) were examined. Our results show that CXCR4 is expressed in abundance on rat and human NPCs. Moreover, SDF‐1α induced increased NPCs levels of inositol 1,4,5‐triphosphate, extracellular signal‐regulated kinases 1/2, Akt, c‐Jun N‐terminal kinase, and intracellular calcium whereas it diminished cyclic adenosine monophosphate. Finally, SDF‐1α can induce human NPC chemotaxis in vitro, suggesting that CXCR4 plays a functional role in NPC migration. Both T140, a CXCR4 antagonist, and pertussis toxin (PTX), an inactivator of G protein‐coupled receptors, abrogated these events. Ultimately, this study suggested that SDF‐1α can influence NPC function through CXCR4 and that CXCR4 is functional on NPC. © 2004 Wiley‐Liss, Inc.
Delayed presentation of anorectal malformations

Aims and Objectives: Delayed management of anorectal malformation (ARM) increases the surgical and functional complications for the patient. We defined “delayed presentation of ARM” and reviewed our patients with ARM to find out the incidence and causes of delayed presentation. Materials and Methods: Patients satisfying the criteria of “delayed presentation of ARM” were involved. Detailed information of each patient including the mode of presentation, associated anomalies, plan of management and follow-up was obtained from the hospital records. Results: Between 2003 and 2006, 43 patients satisfied our criteria of “delayed presentation of ARM”. There were 21 males and 22 females. Seventeen of these males presented with low-type ARM. Eleven of them were managed by a single-stage procedure. These “delayed presenters” had to live with constipation, inadequate weight gain and parental anxiety for a greater time. Analysis of the outcomes showed more functional complications in patients who had undergone failed perineal surgery previously. In females with low ARM, the procedure of choice was anterior sagittal anorectoplasty (ASARP). Single stage surgery provides good outcomes for most of low type of ARMs. High-type ARMs in males and females were managed by a staged procedure. Conclusion: “Delayed presentation of ARM” is a major group of ARM in our setup. The management and results of their treatment are not different from those of the early presenters. The most common cause of delayed ARM is wrong advice given by the health care providers followed by inadequate treatment elsewhere. Corrective surgeries taking second attempt in perineum always produces poor outcomes.
Understanding Practice and Institutions: A Historical Perspective

SYNOPSIS: This paper explains how and why Anglo-American accounting and auditing, along with corporate governance and capital markets, evolved over many centuries in response to changes in market forces and technology. We first trace the development of practices that were included in U.S. corporate governance (including accounting and auditing) before the 1930s. We then describe the nature and effect of the increase in U.S. regulation from the 1930s and the development of fair value accounting. Finally, we give an assessment of the current state of accounting, auditing, and corporate governance. Our historical accounts suggest that the approach to accounting and financial reporting is more consistent with stewardship (care of net assets) than an attempt to value the firm, and that conservatism (prudence) is a critical information control and governance mechanism. We echo the U.K. Financial Reporting Council's call on standard setters to reintroduce an explicit reference to conservatism (prudence) into the.
Fast inter mode decision strategy based on stochastic models selection for H.264/AVC

The latest video codec, H.264/AVC, was presented with lots of new features that can efficiently improve coding performance. In this paper, we employ a stochastic model based selection strategy to solve the variable block size coding problem in H.264/AVC. This strategy is the most efficient method among all other fast mode decision algorithms. It just takes two out of seven modes to find the best mode. The experimental results show that the proposed method can save the coding time by about 32% with 0.1 dB PSNR degradation.
Preliminary Research on the Efficacy of Virtual Reality Exposure Therapy to Treat Driving Phobia

This article presents a review of preliminary research of two studies of the efficacy of virtual reality exposure therapy (VRET) to treat driving phobia. Study 1 describes a case study of a patient who completed a 7-day baseline followed by three sessions of VRET. Her peak anxiety decreased within and across sessions. At the post-treatment assessment, her phobic-related symptoms had diminished and she no longer met diagnostic criteria for driving phobia. Clinical improvement was maintained at 1-, 3-, and 7-month follow-up. In study 2, a multiple baseline across-subjects design was used to treat five patients over eight weekly VRET sessions. Visual and statistical analyses showed clear improvement in driving anxiety and avoidance in three patients between pre- and post-treatment assessments, and they no longer met criteria for driving phobia. There was marginal improvement in one patient, and the remaining individual showed no treatment gains. There was negligible change in actual driving frequency for any of the patients. Some gains were lost at the follow-up, particularly for the two individuals with poorer treatment responses. The results from these preliminary studies suggest that VRET may be a promising intervention for treating driving phobia. Avenues for improving treatment outcome are discussed.
Validity of urinalysis and microscopy for detecting urinary tract infection in the emergency department

This study assessed the validity of standard urinalysis, urinalysis for leucocyte esterase and nitrites, and urgent microscopy in the diagnosis of urinary tract infection (UTI) in 60 female patients with a triage diagnosis of UTI. There were 24 (40%) proven UTIs after culture. Simple urinalysis was sensitive for UTI (95.8%) but the positive predictive value was only 45.1%. The addition of leucocyte esterase and nitrite urinalysis testing did not improve the sensitivity, but if both of these were positive the positive predictive value improved to 100%. Urgent microscopy alone was sensitive (100%) but non-specific (38.9%). The specificity of the diagnosis improved to 94.4% for organism counts of ≥10/μl and to 88.9% for leucocyte counts of ≥50/μl. The negative predictive value of no detectable leucocytes on microscopy was 94.7%. Screening for UTI in the emergency department (ED) population is improved by the addition of leucocyte esterase and nitrite test. A positive urinalysis test for leucocytes and nitrites, or urinalysis positive at levels of ≥500 leucocytes or ≥5 g/l protein should confirm a clinical diagnosis of UTI. Urgent urine microscopy should be performed only if the above criteria are not met yet a minimum of one urinalysis result is positive.
Executive Stock Option Vesting Conditions, Corporate Governance and CEO Attributes: Evidence from Australia

We investigate the association between executive stock option (ESO) vesting conditions, corporate governance and CEO attributes. Using observations from the 250 largest Australian firms, we find that stronger corporate governance is positively associated with the length of the vesting period and the use of performance hurdles. We also find that when CEOs approach retirement, firms are more likely to grant longer time‐vesting options but are less likely to impose performance hurdles. Further, more powerful CEOs appear to influence the granting of ESOs with less restrictive vesting conditions. Our findings suggest that both corporate governance and CEO attributes significantly shape the design of ESOs.
Loss of heterozygosity for distal markers on 22q in human gliomas

Loss of constitutional heterozygosity as determined through the analysis of restriction‐fragment‐length polymorphism (RFLP) on tumoral and constitutional DNA has proven to be helpful to delimit the location of tumor‐suppressor genes in the human genome. In malignant gliomas this approach indicates that chromosomes 9p, 10, 17p, and 22 may contain genes of this category involved in its origin and/or progression. Regarding chromosome 22, the data so far provided by molecular studies confirmed those previously reported by cytogenetic studies, suggesting the existence of a sub‐group of malignant gliomas characterized by monosomy of this chromosome. However, the precise location of the putative glioma suppressor gene on chromosome 22 remains ambiguous. We have performed a combined cytogenetic and RFLP study on a series of 31 gliomas, looking for structural abnormalities of this chromosome. In 3 instances, terminal deletions of the long arm of chromosome 22 were observed by both methodologies, suggesting that the band q13 region distal to the D22S80 marker might be the critical domain non‐randomly involved in tumor suppression of gliomas. © 1992 Wifey‐Liss, Inc.
Use of factor-analyzed symptom dimensions to predict outcome with serotonin reuptake inhibitors and placebo in the treatment of obsessive-compulsive disorder.

OBJECTIVE No consistent predictors of outcome have been identified for the pharmaco-therapy of obsessive-compulsive disorder (OCD). Recent factor analytic studies have identified meaningful symptom dimensions that may be related to response to serotonin reuptake inhibitors and other treatments. METHOD A total of 354 outpatients with primary OCD were administered the Yale-Brown Obsessive Compulsive Scale Symptom Checklist, and its 13 main symptom categories were factor analyzed by using principal components analysis. The identified symptom dimensions were then entered into multiple regression models as outcome predictors of response to serotonin reuptake inhibitors and placebo response in a group of 150 nondepressed subjects who completed six double-blind, placebo-controlled trials with a serotonin reuptake inhibitor (clomipramine, fluvoxamine, fluoxetine, sertraline, and paroxetine). Eighty-four patients received a serotonin reuptake inhibitor and 66, placebo. RESULTS The principal components analysis identified five factors that explained 65.5% of variance in outcome: symmetry/ordering, hoarding, contamination/cleaning, aggressive/checking, and sexual/religious obsessions. Serotonin reuptake inhibitors were significantly superior to placebo on all outcome measures. Initial severity of OCD was related to greater posttreatment severity of OCD. Higher scores on the hoarding dimension predicted poorer outcome following treatment with serotonin reuptake inhibitors, after control for baseline severity. No predictors of placebo response were identified. Exclusion of clomipramine did not modify the overall results, suggesting a cross-serotonin reuptake inhibitor effect. CONCLUSIONS The identified symptom dimensions are largely congruent with those identified in earlier reports. Patients with OCD vary in their response to treatment with serotonin reuptake inhibitors. The presence of hoarding obsessions and compulsions is associated with poorer response to serotonin reuptake inhibitors.
Combining architectural fault-injection and neutron beam testing approaches toward better understanding of GPU soft-error resilience

Transient faults continue to be a critical concern in a range of computing domains including: High-Performance Computing (HPC), scientific computing, and the automotive industry. While radiation-induced faults have been well studied and understood in microprocessors, their impact on computations on Graphic Processing Units (GPU) has received less attention. GPUs are now being used in a large number of HPC and automotive markets. Mitigating the effects of transient faults requires a thorough understanding of the interaction between applications, system software, and the underlying hardware. Developing this understanding is quite challenging mainly due to our limited ability to capture and study cross-layer reliability interactions. In this paper, we consider the combination of neutron beam testing experiments with architectural fault injection experiments to gain a deeper understanding of the relationship between the vulnerability of GPUs and the underlying workload characteristics of applications targeted for GPU devices.
Parental perceptions of childhood feeding problems

Previous research suggests that parental report of children’s feeding corresponds with their child’s nutritional intake (Cooke et al., 2006; Ekstein et al., 2010). The current study aimed to determine whether there is a relationship between parental report of children’s feeding problems and their child’s nutritional intake in a non-clinical population and, in addition, to establish whether parental anxiety (Cooke et al., 2003) can predict whether parental report of feeding problems correspond with the child’s intake. Sixty-one parents of children aged two to seven years completed the parent report measure; the Behavioural Paediatric Feeding Assessment Scale as well as a food diary detailing their child’s intake, which was analysed using CompEAT nutritional software. They also completed the anxiety subscale of the Hospital Anxiety and Depression Scale. Previous findings of an association between parent report of feeding problems and child’s intake (Cooke et al., 2006) were not replicated. However, an association was found between parents’ anxiety and their reports of feeding problems. Parental anxiety was also found to independently predict whether parent report of feeding problems matched the child’s intake. Findings highlight the importance of a multifactorial approach to understanding childhood feeding difficulties. This requires replication with a clinical sample.
The Incomplete Currency: The Future of the Euro and Solutions for the Eurozone: The Future of the Euro and Solutions for the Eurozone

Description: Praise for THE INCOMPLETE CURRENCY "This book has the merit to frame the problems of the Eurozone not only in a perspective that is scientifically rigorous, but with an eye that is able to analyze all the consequences on the European and global financial system. The author does not limit the analysis to the current situation; he describes, with rigor and clarity, many proposals to attain in a gradual but concrete way, a real monetary union. " Prof. Romano Prodi, former President, EU Commission; Italy's former Prime Minister "Marcello Minenna is a smart and careful analyst. He had signaled many of the recent problems facing the single currency when they were still in their embryonic stage. With this rigorous and brilliant book, Marcello performs an original reconstruction of the euro crisis, always supporting his own theses with an impressive amount of empirical evidence. Some proposals for reform of the current Eurozone institutional arrangement surely deserve the attention of the European policy makers. " Prof. Vincenzo Visco, President, NENS center; Italy's former Minister of Finance and Economy "The beautiful book of Marcello Minenna can be a great tool for information, education and understanding, but it is mainly a contribution to the idea of Europe, for a new political and economic governance and a stricter control on finance many bricks that should be used to build the United States of Europe. " Susanna Camusso, General Secretary, CGIL (Italian General Confederation of Labor) "The euro, along with the problems of monetary union without fiscal union, has been debated a lot. But the work done by Marcello Minenna in this beautiful volume is unique. The methodology of analysis is innovative and focused on the important role played by the movements of financial flows in the context of the European crisis. Finance can also be used to develop innovative solutions. This book contains many original proposals of great interest that demand the consideration of economists and policy makers. " Prof. Rainer Masera, Italy's former Minister of Budget, Economic Planning and European Affairs
The effect of functional knee-braces on strain on the anterior cruciate ligament in vivo.

Functional knee-braces are widely used to protect injured or reconstructed anterior cruciate ligaments, despite the fact that few scientific data support their efficacy. We studied seven functional braces, representative of both the typical custom-fit and off-the-shelf designs. The braces were tested on subjects who had a normal anterior cruciate ligament and were scheduled for arthroscopic meniscectomy or exploration of the knee under local anesthesia. After the operative procedure, a Hall-effect strain-transducer was applied to the anterior cruciate ligament. Under low anterior shear loads, two braces provided some protective strain-shielding effect compared with no brace, but this strain-shielding effect did not occur at the higher anterior shear loads expected during the high-stress activities common to athletic events. The DonJoy, Townsend, C.Ti. , and Lenox Hill braces demonstrated a strain-shielding effect on the anterior cruciate ligament with an internal torque of five newton-meters applied to the tibia. None of the braces had any effect on strain on the anterior cruciate ligament during active range of motion of the knee from 10 to 120 degrees or during isometric contraction of the quadriceps. Wearing of a brace did not produce an increase in the value for strain on the anterior cruciate ligament. For the activities that were evaluated in this study, none of the braces produced adverse effects on the anterior cruciate ligament, and there were no significant differences in the strain on the anterior cruciate ligament between the use of a custom-fit or an off-the-shelf brace design. There were no apparent advantages of the more expensive custom-made braces compared with the off-the-shelf designs.
Infanticide in Female Forensic Patients:The View from the Evolutionary Standpoint

Evolutionary theory predicts that very young mothers would be more likely to kill an infant than older women, given that the younger mother has a much greater ability to “replace” the dead child through subsequent pregnancies and thus to produce offspring for the next generation. Evolutionary theory also predicts that a woman would be more likely to kill a child if the child was obviously defective, the pregnancy was the result of incest or rape, or if the mother’s means of supporting the child were severely compromised. The authors hypothesized that mentally ill mothers would behave in a way that differed significantly from evolutionary expectations, i.e., that they would be more likely to kill children who were older than those killed by mothers in the general population and that the mothers themselves would be likely to be older than mothers in the general population when the murders occurred. To test this hypothesis, the authors compared infanticides (both filicides and neonaticides) committed by mentally ill mothers with those committed by mothers in the general population. They examined two samples: 1) all cases of maternal infanticide from the Mid-Hudson Forensic Psychiatric Hospital from 1978 (when the hospital began admitting female patients) through the year 2000 and 2) a general population sample from a 10-year Canadian study reported by Daly and Wilson in 1998. The authors focused on the following variables: ages of the mothers, ages of the child-victims, whether the pregnancy was the result of rape or incest, whether the child had significant behavioral or physical problems, and whether there were problems supporting the child (e.g., having no partner, poverty, mother’s lack of education). The results of the analyses supported the authors’ hypothesis about ages of mothers and children. The mentally ill mothers in the Mid-Hudson sample were generally older when they killed their children and the children who were killed were generally older than in the Daly and Wilson general population sample (where the majority of the cases involved neonaticide and the mothers were generally younger than 25 years of age). The three factors, poverty, low education level (or low intellectual capacity), and lack of a spouse were common in both samples. Findings concerning cultural factors, motives, and methods used will be presented in separate publications.
Risk factors for cardiovascular complications following total joint replacement surgery.

OBJECTIVE To determine risk factors for cardiac complications following total joint replacement (TJR) surgery. METHODS We performed a case-control study of patients who had undergone a primary or revision total knee or total hip replacement surgery. Cases consisted of those who received a TJR and experienced a cardiac complication during the surgical admission period (myocardial infarction [MI], congestive heart failure [CHF], unstable angina, arrhythmia, symptomatic hypotension, or pulmonary embolus). Controls consisted of those who received a TJR and did not experience a cardiac complication during the surgical admission period. Controls were matched to the cases for age at surgery, year of surgery, and surgeon. Case and control status and identification of potential risk factors were ascertained by review of medical records. Conditional logistic regression analysis was used to identify independent predictors of cardiac complications. RESULTS The sample included 209 cases and 209 controls. Factors associated with a higher risk of cardiac complications included a history of arrhythmia (adjusted odds ratio [OR] 2.6 [95% confidence interval (95% CI) 1.5-4.3]), a history of coronary artery disease, MI, CHF, or valvular heart disease (OR 1.6 [95% CI 0.9-2.6]), revision surgery (OR 2.2 [95% CI 1.2-3.9]), and bilateral surgery (adjusted OR 3.5 [95% CI 1.6-8.0]). Even though controls were matched for age (within age brackets), age was still associated with a higher risk of cardiac complications (OR 1.7 [95% CI 0.9-3.4]). CONCLUSION This case-control study identified 2 new risk factors for cardiac complications following TJR: bilateral and revision surgery. The study also confirmed previously documented risk factors, including older age at surgery and a history of arrhythmia and of other cardiac problems. These findings should help clinicians anticipate and prevent cardiac complications following TJR surgery.