Miracle-dz/UniFAR-FTUs huggingface dataset:
Intra-specific and inter-specific variation in specific leaf area reveal the importance of abiotic and biotic drivers of species diversity across elevation and latitude

Questions Are patterns of intra- and inter-specific functional trait variation consistent with greater abiotic filtering on community assembly at high latitudes and elevations, and greater biotic filtering at low latitudes and elevations? Locations Area de Conservacion Guanacaste, Costa Rica; Santa Catalina Mountains, Arizona; Siskiyou Mountains, Oregon. Methods We measured woody plant species abundance and a key functional trait associated with competition for resources and environmental tolerance (specific leaf area, SLA) along elevational gradients in low-latitude tropical (Costa Rica), mid-latitude desert (Arizona) and high latitude mediterranean (southern Oregon) biomes. We explored patterns of abiotic and biotic filtering by comparing observed patterns of community-weighted means and variances along elevational and latitudinal gradients to those expected under random assembly. In addition, we related trait variability to niches and explored how total trait space and breadth vary across broad spatial gradients by quantifying the ratio of intra- to inter-specific variation. Results Both the community-wide mean and variance of SLA decreased with increasing latitude, consistent with greater abiotic filtering at higher latitudes. Further, low-elevation communities had higher trait variation than expected by chance, consistent with greater biotic filtering at low elevations. Finally, in the tropics and across latitude the ratio of intra- to inter-specific variation was negatively correlated to species richness, which further suggests that biotic interactions influence plant assembly at low latitudes. Conclusions Intra- and inter-specific patterns of SLA variation appeared broadly consistent with the idea that the relative strength of biotic and abiotic drivers on community assembly changes along elevational and latitudinal gradients; evidence for biotic drivers appeared more prominent at low latitudes and elevations and evidence for abiotic drivers appeared more prominent at high latitudes and elevations.
Different models of HPV vaccine decision-making among adolescent girls, parents, and health-care clinicians in New Mexico

Objective Human papillomavirus (HPV) vaccination rates in the United States have been lower than anticipated since the vaccine became widely available globally in 2006. Of particular concern are data that suggest disparities in vaccine receipt among US ethnic minority and health disparity populations such as Hispanics, who are disproportionately affected by cervical cancer. Given these trends, it is important to examine actual vaccination decision-making processes among clinicians, parents, and adolescents to identify strategies to enhance uptake. Design We conducted a mixed-method study examining HPV vaccine decision-making, utilizing both structured questionnaires of primarily Hispanic mothers and daughters (aged 12–18) and semi-structured interviews with mothers, daughters, and health-care clinicians to more deeply investigate decision-making dynamics. Quantitative analysis was used for descriptive purposes, while qualitative analysis featured an iterative process to examine factors related to decision-making surrounding the HPV vaccine. The study was conducted in two primary care clinics serving predominantly Hispanic patients in an urban New Mexico setting through Research Involving Outpatient Setting Network (RIOS Net), a primary care practice-based research network. Results We administered 22 questionnaires and conducted 30 interviews. We identified three aspects of vaccine delivery that were similar across clinics: availability/supply of the vaccine, favorable clinician attitudes toward the vaccine, and clinicians' competing demands. We also identified three decision-making stages (pre-encounter, encounter, and post-encounter), though we found distinct differences in decision-making processes at the two sites. We describe the differences between an encounter-based and a process-based model of decision-making, and the ways in which explanatory factors might influence the decision-making process. Conclusion Our findings suggest that factors other than race and ethnicity, such as education, socioeconomic status, and health-care access, play an important role in HPV vaccination decisions. Further research to elucidate the specific informational needs and communication strategies associated with these factors will be needed to enhance vaccine uptake.
Reduced glutathione for the treatment of anemia during hemodialysis: a preliminary communication.

In 4 chronic hemodialysis patients we have tested whether the administration of reduced glutathione (GSH; Glutamed, Boehringer Mannheim Italia; 1,200 mg i.v.) at the end of each hemodialytic session during 90 days could minimize oxidative damage to the red blood cells (RBC) and reduce the recombinant human erythropoietin requirements. Treatment with GSH was followed by an increase in RBC GSH content (n = 3), a normalization of the ascorbine cyanide test (n = 4), an increase in RBC survival (n = 3), and a reduction in 2 patients of the erythropoietin need (41 and 26%, respectively, after 3 months of therapy). When the GSH supplements were terminated, we noticed after 3 months a re-establishment of the baseline values. On the other hand, malonyldialdehyde, RBC deformability, and RBC splenic pool were abnormal before and remain abnormal during the test period. Since no adverse reactions were noticed, these findings seem to indicate the GSH could ameliorate the intraerythrocytic oxidative defense and could be as useful drug in the treatment of anemia in patients affected by chronic renal failure.
Single-port Versus Multiport Laparoscopic Cholecystectomy: A Prospective Randomized Clinical Trial

Purpose: We report the outcomes of a randomized clinical trial of single-port laparoscopic cholecystectomy (SPLC) and multiport laparoscopic cholecystectomy (MPLC). Methods: Fifty-four patients (27 in each group) were randomized. A visual analog scale was used with a 10-point scale for an objective assessment of incisional pain and incisional cosmesis on postoperative days 1, 3, and 14. Results: The mean operating time was significantly longer in the SPLC. The mean cosmesis scores on postoperative days 3 (9.7 vs. 8.9, P=0.01) and 14 (9.9 vs. 9.2, P<0.01) were significantly greater in the SPLC group than in the MPLC group. The group’s mean visual analog scale scores for incisional pain, and their requirements for analgesics, did not differ significantly. Conclusions: Although SPLC takes longer than MPLC, experienced laparoscopic surgeons can perform SPLC safely with results comparable with those for MPLC. SPLC is superior to MPLC in terms of short-term cosmetic outcomes.
Descriptive Analysis of Spinal Neuroaxial Injections, Surgical Interventions, and Physical Therapy Utilization for Degenerative Lumbar Spondylolisthesis Within Medicare Beneficiaries from 2000 to 2011

Study Design. A retrospective, observational study. Objective. The aim of this study was to determine the utilization of various treatment modalities in the management of degenerative spondylolisthesis within Medicare beneficiaries. Summary of Background Data. Degenerative lumbar spondylolisthesis is a condition often identified in symptomatic low back pain. A variety of treatment algorithms including physical therapy and interventional techniques can be used to manage clinically significant degenerative spondylolisthesis. Methods. This study utilized the 5% national sample of Medicare carrier claims from 2000 through 2011. A cohort of beneficiaries with a new International Classification of Diseases 9th edition (ICD-9) diagnosis code for degenerative lumbar spondylolisthesis was identified. Current procedural terminology codes were used to identify the number of procedures performed each year by specialty on this cohort. Results. A total of 95,647 individuals were included in the analysis. Average age at the time of initial diagnosis was 72.8 ± 9.8 years. Within this study cohort, spondylolisthesis was more prevalent in females (69%) than males and in Caucasians (88%) than other racial demographics. Over 50% of beneficiaries underwent at least one injection, approximately one-third (37%) participated in physical therapy, one in five (21%) underwent spinal surgery, and one-third (36%) did not utilize any of these interventions. Greater than half of all procedures (124,280/216,088) occurred within 2 years of diagnosis. The ratio of focal interventions (transforaminal and facet interventions) to less selective (interlaminar) procedures was greater for the specialty of Physical Medicine and Rehabilitation than for the specialties of Anesthesiology, Interventional Radiology, Neurosurgery, and Orthopedic Surgery. The majority of physical therapy was dedicated to passive treatment modalities and range of motion exercises rather than active strengthening modalities within this cohort. Conclusion. Interventional techniques and physical therapy are frequently used treatment modalities for symptomatic degenerative spondylolisthesis. Understanding utilization of these techniques is important to determine relative clinical efficacies and to optimize future health care expenditures. Level of Evidence: N/A
Validating a Measure of Patient Self-efficacy in Disease Self-management Using a Population-based IBD Cohort: The IBD Self-efficacy Scale

Background:Self-efficacy describes a person's confidence in their ability to manage demands, and is predictive of health outcomes in chronic disease such as hospitalization and health status. However, meaningful measurement must be domain (e.g., disease) specific. This study aims to provide validation of the Inflammatory Bowel Disease Self-Efficacy scale (IBD-SE), using a population-based IBD sample. Methods:Manitoba IBD Cohort Study participants completed a survey and clinical interview at a mean of 12 years postdiagnosis (n = 121 Crohn's disease; n = 108 ulcerative colitis), which included validated measures of psychological functioning, disability, disease-specific quality of life, perceived health, and current and recent disease activity, in addition to the IBD-SE. Results:The IBD-SE had high internal consistency (Cronbach's &agr; = 0.97), and a 4-factor structure was confirmed. Construct validity was demonstrated as follows: the IBD-SE was strongly correlated with mastery (r = 0.53), highly correlated in the expected directions with measures of psychological well-being (r = 0.70), stress (r = −0.78), distress (r = −0.71), disability (r = −0.48), disease-specific quality of life (r = 0.68), and overall perceived health (r = 0.52) (all P < 0.001). Those with currently inactive disease had higher self-efficacy than the active disease group (Crohn's disease: mean = 232 versus 195, P < 0.001; ulcerative colitis: mean = 233 versus 202, P < 0.01), with similar findings for recent symptomatic disease activity. Conclusions:The IBD-SE is a reliable, valid, and sensitive measure as demonstrated in this population-based sample, supporting its utility in IBD. Because self-efficacy is a modifiable psychological characteristic that can contribute to positive health outcomes, the IBD-SE may prove to be a valuable instrument for research and in targeted intervention with IBD patients.
Does Learning to Read Improve Intelligence? A Longitudinal Multivariate Analysis in Identical Twins From Age 7 to 16

Evidence from twin studies points to substantial environmental influences on intelligence, but the specifics of this influence are unclear. This study examined one developmental process that potentially causes intelligence differences: learning to read. In 1,890 twin pairs tested at 7, 9, 10, 12, and 16 years, a cross-lagged monozygotic-differences design was used to test for associations of earlier within-pair reading ability differences with subsequent intelligence differences. The results showed several such associations, which were not explained by differences in reading exposure and were not restricted to verbal cognitive domains. The study highlights the potentially important influence of reading ability, driven by the nonshared environment, on intellectual development and raises theoretical questions about the mechanism of this influence.
Mercapturic acids: recent advances in their determination by liquid chromatography/mass spectrometry and their use in toxicant metabolism studies and in occupational and environmental exposure studies

Abstract This review describes recent selected HPLC/MS methods for the determination of urinary mercapturates that are useful as noninvasive biomarkers in characterizing human exposure to electrophilic industrial chemicals in occupational and environmental studies. High-performance liquid chromatography/mass spectrometry is a sensitive and specific method for analysis of small molecules found in biological fluids. In this review, recent selected mercapturate quantification methods are summarized and specific cases are presented. The biological formation of mercapturates is introduced and their use as indicators of metabolic processing of reactive toxicants is discussed, as well as future trends and limitations in this area of research.
Obstructive sleep apnea syndrome: natural history, diagnosis, and emerging treatment options

Sleep apnea is an entity characterized by repetitive upper airway obstruction resulting in nocturnal hypoxia and sleep fragmentation. It is estimated that 2%–4% of the middle-aged population has sleep apnea with a predilection in men relative to women. Risk factors of sleep apnea include obesity, gender, age, menopause, familial factors, craniofacial abnormalities, and alcohol. Sleep apnea has been increasingly recognized as a major health burden associated with hypertension and increased risk of cardiovascular disease and death. Increased airway collapsibility and derangement in ventilatory control responses are the major pathological features of this disorder. Polysomnography (PSG) is the gold-standard method for diagnosis of sleep apnea and assessment of sleep apnea severity; however, portable sleep monitoring has a diagnostic role in the setting of high pretest probability sleep apnea in the absence of significant comorbidity. Positive pressure therapy is the mainstay therapy of sleep apnea. Other treatment modalities, such as upper airway surgery or oral appliances, may be used for the treatment of sleep apnea in select cases. In this review, we focus on describing the sleep apnea definition, risk factor profile, underlying pathophysiologic mechanisms, associated adverse consequences, diagnostic modalities, and treatment strategies.
Testicular structure of three species of neotropical freshwater pimelodids (Pisces, Pimelodidae)

Estudou-se a estrutura testicular dos seguintes peixes Siluriformes: Pimelodus maculatus (Lacepede, 1803), Iheringichtys labrosus (Lutken, 1874) e Conorhynchos conirostris (Valenciennes, 1840). Os testiculos foram dissecados e divididos anatomicamente em regioes cranial e caudal. As franjas dos testiculos em maturacao foram contadas e mediu-se o comprimento das mesmas. O teste t de Student foi utilizado para verificar diferencas significativas entre o comprimento das franjas das duas regioes. Para estudo histologico, testiculos inteiros de cada especie, em repouso e em maturacao, foram fixados em liquido de Bouin por 6-8 horas e submetidos as tecnicas histologicas de rotina. Utilizaram-se tecnicas histoquimicas classicas para detectar carboidratos e proteinas. Os testiculos das especies estudadas sao orgaos pares e franjados. Histologicamente, as franjas da regiao cranial de todas as especies sao espermatogenicas, com celulas da linhagem em mesma fase de desenvolvimento contidas em cistos. As franjas da regiao caudal de C. conirostris sao tambem espermatogenicas, enquanto P. maculatus e I. labrosus apresentam franjas caudais exclusivamente secretoras. Histoquimicamente detectou-se na secrecao das franjas caudais de P. maculatus glicoproteinas neutras, glicoconjugados acidos carboxilados, incluindo sialomucinas e glicoconjugados acidos e sulfatados e em I. labrosus glicoproteinas neutras. Houve diferencas significativas entre o comprimento das franjas das regioes cranial e caudal para todas as especies estudadas.
Protein content of the evening meal and nocturnal plasma glucose regulation in type-I diabetic subjects.

The effect of two isocaloric evening meals (low protein-high fat vs. high protein-low fat content) on plasma glucose regulation during the night were compared. Eight C-peptide-deficient type-I diabetic subjects without autonomic neuropathy were treated with fixed doses of continuous infusions of insulin during 2 nights. At 7 p.m. they received in random order either a low protein-high fat (5% of total energy protein, 60% fat, 35% carbohydrate) or a high protein-low fat (35% protein, 30% fat, 35% carbohydrate) evening meal. Venous plasma samples were drawn hourly thereafter. Plasma glucose concentrations were similar postprandially during the 2 nights between 7 p.m. and 11 p.m. , but they were higher in the early morning hours after the high protein meal (p < 0.02 vs. the low protein meal). Two subjects developed symptomatic hypoglycemia after the low protein meal. Plasma glucagon concentrations were higher (p = 0.023) and serum free insulin lower (p < 0.05) after the high protein-low fat meal. Plasma cortisol and growth hormone were not significantly different between the two diets. Therefore, an increase in the protein content of the evening meal (fat content diminished) increases plasma glucose concentrations several hours later in the night, possibly due to protein-induced glucagon secretion and to lower plasma free insulin levels. Patients with type-I diabetes with a tendency to develop hypoglycemia during the night may avoid this problem by increasing the protein content of the evening meal.
Ice core evidence for a 20th century increase in surface mass balance in coastal Dronning Maud Land, East Antarctica

Abstract. Ice cores provide temporal records of surface mass balance (SMB). Coastal areas of Antarctica have relatively high and variable SMB, but are under-represented in records spanning more than 100 years. Here we present SMB reconstruction from a 120 m-long ice core drilled in 2012 on the Derwael Ice Rise, coastal Dronning Maud Land, East Antarctica. Water stable isotope (δ18O and δD) stratigraphy is supplemented by discontinuous major ion profiles and continuous electrical conductivity measurements. The base of the ice core is dated to AD 1759 ± 16, providing a climate proxy for the past ∼ 250 years. The core's annual layer thickness history is combined with its gravimetric density profile to reconstruct the site's SMB history, corrected for the influence of ice deformation. The mean SMB for the core's entire history is 0.47 ± 0.02 m water equivalent (w.e.) a−1. The time series of reconstructed annual SMB shows high variability, but a general increase beginning in the 20th century. This increase is particularly marked during the last 50 years (1962–2011), which yields mean SMB of 0.61 ± 0.01 m w.e. a−1. This trend is compared with other reported SMB data in Antarctica, generally showing a high spatial variability. Output of the fully coupled Community Earth System Model (CESM) suggests that, although atmospheric circulation is the main factor influencing SMB, variability in sea surface temperatures and sea ice cover in the precipitation source region also explain part of the variability in SMB. Local snow redistribution can also influence interannual variability but is unlikely to influence long-term trends significantly. This is the first record from a coastal ice core in East Antarctica to show an increase in SMB beginning in the early 20th century and particularly marked during the last 50 years.
Contrast material-induced nephrotoxicity and intravenous low-osmolality iodinated contrast material: risk stratification by using estimated glomerular filtration rate.

PURPOSE To determine the effect of intravenous (IV) low-osmolality iodinated contrast material (LOCM) on the development of post-computed tomography (CT) acute kidney injury (AKI), stratified by pre-CT estimated glomerular filtration rate (eGFR), in patients with stable renal function. MATERIALS AND METHODS Institutional review board approval was obtained and patient consent waived for this HIPAA-compliant, retrospective study. CT examinations performed over a 10-year period on unique adult inpatients with sufficient serum creatinine (SCr) data and stable renal function (difference between baseline and pre-CT SCr within 0.3 mg/dL and 50% of baseline) were identified. A 1:1 propensity score matched cohort analysis with multivariate analysis of effects was performed with post-CT AKI as the primary outcome measure (8826 nonenhanced and 8826 IV contrast agent-enhanced CT studies in 17 652 patients). Propensity matching was performed with respect to likelihood of receiving IV contrast material (19 tested covariates). Post-CT AKI with Acute Kidney Injury Network SCr criteria was the primary endpoint. A stepwise multivariate conditional logistic regression model was performed to identify the effect of IV LOCM on post-CT AKI. RESULTS After 1:1 propensity matching, IV LOCM had a significant effect on the development of post-CT AKI (P = .04). This risk increased with decreases in pre-CT eGFR (≥ 60 mL/min/1.73 m(2): odds ratio, 1.00; 95% confidence interval: 0.86, 1.16; 45-59 mL/min/1.73 m(2): odds ratio, 1.06; 95% confidence interval: 0.82, 1.38; 30-44 mL/min/1.73 m(2): odds ratio, 1.40; 95% confidence interval: 1.00, 1.97; <30 mL/min/1.73 m(2): odds ratio, 2.96; 95% confidence interval: 1.22, 7.17). CONCLUSION IV LOCM is a nephrotoxic risk factor in patients with a stable eGFR less than 30 mL/min/1.73 m(2), with a trend toward significance at 30-44 mL/min/1.73 m(2). IV LOCM does not appear to be a nephrotoxic risk factor in patients with a pre-CT eGFR of 45 mL/min/1.73 m(2) or greater.
Micro-expression recognition using apex frame with phase information

Micro-expression, which is an uncontrollable expression provoked involuntary and spontaneously, can reveal one's concealed genuine feelings. In recent years, the analysis of micro-expression is attracting more and more attention in the field of computer vision. Yet, not many papers are published, potentially due to its micro and subtle nature that lead to a major challenge in developing an efficient automated micro-expression recognition system. Almost all conventional works focus on extracting the micro-expression features from the entire or selected part of the video sequence. Researchers then proposed to represent a micro-expression video sequence by using only two frames, viz., onset and apex, with slight trade-off with performance.