Miracle-dz/UniFAR-FTUs huggingface dataset:
Gait characteristics during crossing over obstacle in patients with glaucoma using insole foot pressure

Abstract Background: Glaucoma, is the most common cause of irreversible visual deficits, presents as an injury to the optic nerve and it is mainly associated with elevated intraocular pressure. The main symptom of glaucoma is a reduction of the visual field, which is usually a source of complaint at the advanced stage of disease. Because of visual deficit, gait dysfunctions, including low gait speed and increased bumping into objects, postural sway, and falling are occurred. Many studies have used stopwatch or motion-sensing devices to report on gait function following glaucoma. However, there are few reports on gait dysfunction assessed by examining foot pressure. This study investigated gait ability following glaucoma according to different gait conditions by assessing foot pressure. Methods: Thirty older adults (15 in the sex- and age-matched normal group and 15 in the glaucoma group) were recruited for this study. All participants were walked under 2 different gait conditions in an F-scan system and the subject’ assessments were randomly assigned to rule out the order effect. Conditions included: gait over an obstacle in a straight 6 m path, gait in a straight path without an obstacle in the 6 m path. Gait variables included cadence, gait cycle, stance time, center of force (COF) deviation, and COF excursion. About 10 minutes were taken for gait evaluation. Results: When walking without an obstacle on a 6 m path, there were significant differences between the 2 groups in gait speed, cadence, gait cycle, and stance time (P < .05). There were significant differences when walking with an obstacle on a 6 m path (P < .05). Two-way analysis of variance showed significant effects associated with “glaucoma” not gait condition on all outcomes except for COF deviation and excursion. Also, there was no the interaction effect between “glaucoma” and “gait condition. ” Conclusion: We demonstrated that glaucoma patients selected the gait strategy such as lower gait function in both gait conditions particularly, slower gait speed and cadence and longer gait cycle and stance time, as determined by examining foot pressure. We believe that our results could help to improve the quality of life of patients with glaucoma.
Fundus Autofluorescence and Clinical Applications

Abstract Fundus autofluorescence (FAF) has allowed in vivo mapping of retinal metabolic derangements and structural changes not possible with conventional color imaging. Incident light is absorbed by molecules in the fundus, which are excited and in turn emit photons of specific wavelengths that are captured and processed by a sensor to create a metabolic map of the fundus. Studies on the growing number of FAF platforms has shown each may be suited to certain clinical scenarios. Scanning laser ophthalmoscopes, fundus cameras, and modifications of these each have benefits and drawbacks that must be considered before and after imaging to properly interpret the images. Emerging clinical evidence has demonstrated the usefulness of FAF in diagnosis and management of an increasing number of chorioretinal conditions, such as age-related macular degeneration, central serous chorioretinopathy, retinal drug toxicities, and inherited retinal degenerations such as retinitis pigmentosa and Stargardt disease. This article reviews commercial imaging platforms, imaging techniques, and clinical applications of FAF.
How C: N: P stoichiometry in soils and carbon distribution in plants respond to forest age in a Pinus tabuliformis plantation in the mountainous area of eastern Liaoning Province, China

Carbon distribution in plants and ecological stoichiometry in soils are important indicators of element cycling and ecosystem stability. In this study, five forest ages, young forest (YF), middle-aged forest (MAF), near-mature forest (NMF), mature forest (MF), and over-mature forest (OMF) in a Pinus tabuliformis plantation were chosen to illustrate interactions among the C: N: P stoichiometry in soils and carbon distribution in plants, in the mountainous area of eastern Liaoning, China. Carbon content was highest in the leaves of MAF (505.90 g⋅kg−1) and NMF (509.00 g⋅kg−1) and the trunks of YF (503.72 g⋅kg−1), MF (509.73 g⋅kg−1), and OMF (504.90 g⋅kg−1), and was lowest in the branches over the entire life cycle of the aboveground components (335.00 g⋅kg−1). The carbon content of the fine roots decreased with soil layer depth. In YF, MAF, and NMF carbon content of fine roots at 0.5 m was always higher than that of fine roots at 1 m; however, it was the opposite in MF and OMF. The carbon content of the leaves changed with forest age; however, carbon content of branches, trunks and fine roots did not change significantly. Soil total carbon (TC), total nitrogen (TN), total phosphorus (TP), and available phosphorus (AP) content was highest in the OMF. Soil TC, TN and AP content, and TC: TN, TC: TP and TN: TP ratio decreased with increasing soil depth. Soil TC, TN, and TP content had a significant effect on the carbon content of fine roots (p < 0.05). The leaf carbon content and soil element content changed obviously with forest age, and the soil TN, TP and AP increased, which might reduce the carbon content allocation of fine roots.
Nephrologists’ Attitudes Regarding Psychosocial Care in Hemodialysis Units

Background: There is a high prevalence of psychosocial issues affecting patients with kidney failure. Objective: We sought to examine Canadian nephrologists’ attitudes and opinions regarding the importance of renal patient psychosocial care, nephrologists’ roles, and experience with psychosocial care in addition to what barriers, if any, prevent these physicians from providing psychosocial care to their patients. Design: A self-administered, survey questionnaire. Setting: Online. Sample: Canadian Society of Nephrology members who predominantly work in clinical care with adult, in-center hemodialysis patients. Measurements: Measurements of the survey include demographics, training, and nephrologists’ opinions regarding their role in administering psychosocial care, potential administrative and patient time constraints, accessibility of other health care workers for this activity, and factors that influence or impede physicians’ ability to address their patients’ psychosocial needs. Methods: A self-administered survey was sent to almost 500 members of the Canadian Society of Nephrology between November 2018 and December 2018. The survey questionnaire was designed to gather opinions and attitudes on psychosocial care delivery as well as potential influencing factors on nephrologists’ ability to provide this care. A univariate statistical analysis was used to analyze survey responses. Results: A total of 30 nephrologists responded to the survey, generating a 6% response rate. Respondents varied across provinces, with the majority being staff nephrologists (80%). While over 94% of respondents either agreed or strongly agreed that focus on psychosocial care improves patient outcomes, only 43% felt that staff nephrologists were suited to provide this care to patients; 97% of respondents believed social workers to be the most suited to provide this. Lack of additional supporting health care members, the need for additional training, too many administrative duties, and empathy fatigue were some of the predominant barriers respondents felt prevented them from addressing the psychosocial care of their patients. Limitations: A low response rate for the survey was obtained, roughly 6%, limiting our ability to draw definitive conclusions. Survey answers by respondents may be different from those by nonrespondents. Answers may be subject to social desirability and/or selection bias. Conclusion: Nephrologists believe that the current psychosocial care of patients in hemodialysis units is inadequate. However, further research is necessary to elucidate the barriers nephrologists face in providing psychosocial care and the changes required to most effectively implement optimal psychosocial care for patients with kidney failure in hemodialysis units.
Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes

The aging of refractory black carbon (rBC) aerosol by sulfate-driven chemistry has been constrained in coal-fired power-plant plumes using the NOAA WP-3D research aircraft during the Southern Nexus (SENEX) study, which took place in the Southeastern US in June and July of 2013. A Single Particle Soot Photometer (SP2) determined the microphysical properties of rBC-containing particles including single-particle rBC mass and the presence and amount of internally-mixed non-rBC material, hereafter referred to as “coatings”. Most power-plant influenced air was associated with very slightly increased amounts of non-refractory material, likely sulfate internally mixed with the rBC, however this increase was statistically insignificant even after semi-Lagrangian exposure for up to 5 h. On average, the increase in coating thickness was 2 ± 4 nm for particles containing 3–5 fg rBC. Similarly, the number fraction of rBC-containing particles that could be identified as internally mixed was increased by plume chemistry by only 1.3 ± 1.3%. These direct measurements of microphysical aging of rBC-containing aerosol by power plant emissions constrain the enhancement of sulfate chemistry on both rBC’s column-integrated absorption optical depth, and rBC-containing aerosol’s ability to act as cloud condensation nuclei. Appling Mie and k -Kohler theories to the SP2 observations, permits the resulting effect on rBC ambient light-absorption to be capped at the 2–6% level.
Ophthalmology Provider Ratings and Patient, Disease, and Appointment Factors

The purpose of the current study is to examine how nonmodifiable sociodemographic, disease, appointment, management, and survey factors correlate with provider rating. This was a retrospective cross-sectional study conducted on 29 857 patient Clinician and Group Consumer Assessment of Healthcare Providers and Systems surveys collected from January 2017 to January 2019 at a tertiary eye center. We included surveys of patients aged 18 years or older, who answered at least 4 of 6 subfield questions, and completed the survey within 90 days of the appointment. The main outcome was the odds of receiving top box score (TBS) of 10/10 on the survey question regarding overall provider rating. The results showed that the variables with higher odds of TBS included higher overall appointment attendance (odds ratio [OR]: 2.66 [95% CI: 1.23-5.75], P = .013); older patient age (OR 2.44 [95% CI: 2.08-2.87], P < .001]; higher percentage of survey questions completed (OR: 2.02 [95% CI: 1.79-2.27], P < .001); better best corrected visual acuity (OR: 1.85 [95% CI: 1.3-2.64], P = .001); optometry clinic visit (OR: 1.25 [95% CI: 1.15-1.36], P < .001); having procedures (OR: 1.19 [95% CI: 1.04-1.36], P = .013), surgery scheduled (OR: 1.18 [95% CI: 1.03-1.36], P = .020], or refraction done (OR: 1.16 [95% CI: 1.08-1.25], P < .001); being seen by male providers (OR: 1.11 [95% CI: 1.04-1.17], P = .001); and having additional eye testing performed (OR: 1.06 [95% CI: 1.00-1.13], P = .048). Variables associated with lower odds of TBS included longer time to complete survey (OR: 0.42 [95% CI: 0.3-0.58], P = .001); new patient encounter (OR: 0.62 [95% CI: 0.58-0.65], P < .001); and glaucoma (OR: 0.66 [95% CI: 0.59-0.75], P < .001), cornea (OR: 0.79 [95% CI: 0.71-0.87], P < .001), or comprehensive clinic visits (OR: 0.86 [95% CI: 0.79-0.94], P < .001). Thus, nonmodifiable factors may affect the provider rating, and these factors should be studied further and accounted for when interpreting the results of patient experience surveys.
A Systematic Review and Meta-Analysis of Prevalence of Obstructive Sleep Apnea in Iranian Patients with Cardiovascular Disease: Perspective of Prevention, Care and Treatment

Background: Obstructive sleep apnea (OSA) is a chronic breathing disorder during sleep. It is prevalent among patients with cardiovascular disease (CVD) and can increase its severity and mortality. Various studies have reported different results in Iran. This systematic review and meta-analysis aimed to determine the prevalence of OSA in Iranian patients with CVD. Materials and Methods: In this study, eight papers published in Persian and English languages were reviewed. The articles were searched using the following keywords and all their possible combinations: “obstructive sleep apnea”, “sleep-disordered breathing”, “sleep apnea”, “OSA”, “cardiovascular disease”, “hypertension”, and “Iran”. Scientific databases, including the Scientific Information Database (SID), Magiran, Web of Science, PubMed, and Scopus, were searched with no time limitations. Data were analyzed using a meta-analysis and a random effects model. Besides, heterogeneity was assessed using the I2 statistic. Data analysis was performed in Stata version 11. Results: The review of eight studies, with a total sample size of 1646 patients, showed that the prevalence of OSA was 59.21% (95% CI: 53.11–65.32) among CVD patients. Also, the prevalence of OSA was higher in men (60.12%; 95% CI: 60.12–82.54) than in women (41.01%; 95% CI: 16.08–65.94). Besides, it was estimated to be higher based on the STOP and STOP-BANG questionnaires (63%; 95% CI: 52.89–73.10) as compared to the Berlin questionnaire (56.63%; 95% CI: 49.20–64.06). Conclusion: More than half of Iranian CVD patients have OSA. Therefore, identifying high-risk patients to reduce the adverse effects of sleep apnea seems necessary.
Investigation of Oxidation and Sintering mechanisms of Silicon powders for photovoltaïc applications

Photovoltaic conversion is a promising energy resource. Bulk crystalline silicon technologies currently dominate the market but suffer from high material losses that are highly detrimental to solar cell production costs. The challenge is then the elaboration of low cost silicon materials through a powder metallurgy route. However, silicon sintering is dominated by grain coarsening mechanisms that preclude densification. Identification of these mechanisms is controversial in the literature. Especially, the role of the native oxide layer (SiO2) at the powder particle surfaces has remained unexplored yet. In this manuscript, the influence of the atmosphere on the reduction of this silica layer is studied using thermogravimetric analysis. Reduction kinetics is consistent with a thermochemical model taking into account the powder oxygen content, the partial pressure of oxidizing species and the pore morphology of the sintered material. For the first time, experimental evidences support the idea that the silica layer inhibits grain coarsening. New sintering processes, involving a control of the silicon monoxide atmosphere (SiO(g)) surrounding the sample are then proposed and investigated in order to monitor the stability of this layer. Stabilization of the silica layer at temperatures as high as 1300 - 1400 °C is shown to enhance densification although it retards lattice diffusion kinetics. In these conditions, the sintering behavior can be divided into two sequential stages marked by two shrinkage peaks on the dilatometric curves. This result is unusual for the sintering of single-phase materials. However, it can be explained with help of a kinetic model using appropriate geometrical simplifications and observations of the sample microstructures.
Lymphopenia in hospitalized patients and its relationship with severity of illness and mortality

Background Lymphopenia is associated with various pathologies such as sepsis, burns, trauma, general anesthesia and major surgeries. All these pathologies are clinically expressed by the so-called Systemic Inflammatory Response Syndrome which does not include lymphopenia into defining criteria. The main objective of this work was to analyze the diagnosis of patients admitted to a hospital related to lymphopenia during hospital stay. In addition, we investigated the relationship of lymphopenia with the four levels of the Severity of Illness (SOI) and the Risk of Mortality (ROM). Method and findings Lymphopenia was defined as Absolute Lymphocyte Count (ALC) <1.0 x109/L. ALC were analyzed every day since admission. The four levels (minor, moderate, major and extreme risk) of both SOI and ROM were assessed. A total of 58,260 hospital admissions were analyzed. More than 41% of the patients had lymphopenia during hospital stay. The mean time to death was shorter among patients with lymphopenia on admission 65.6 days (CI95%, 57.3–73.8) vs 89.9 (CI95%, 82.4–97.4), P<0.001. Also, patients with lymphopenia during hospital stay had a shorter time to the mortality, 67.5 (CI95%, 61.1–73.9) vs 96.9 (CI95%, 92.6–101.2), P<0.001. Conclusions Lymphopenia had a high prevalence in hospitalized patients with greater relevance in infectious pathologies. Lymphopenia was related and clearly predicts SOI and ROM at the time of admission, and should be considered as clinical diagnostic criteria to define SIRS.
Bird-window collisions: Mitigation efficacy and risk factors across two years

Background Research on bird-window collision mitigation is needed to prevent up to a billion bird fatalities yearly in the U.S. At the University of Utah campus (Salt Lake City, Utah, USA), past research documented collisions, especially for Cedar Waxwings (Bombycilla cedrorum) drawn to fruiting ornamental pears in winter. Mirrored windows, which have a metallic coating that turns window exteriors into mirrors, had frequent collisions, which were mitigated when Feather Friendly®bird deterrent markers were applied. Bird-friendly windows–ORNILUX®ultraviolet (UV) and fritted windows–also reduced collisions when data were collected across fall and winter. Extending this prior research, we evaluated additional mitigation and tested the replicability of effects for pear trees, mirrored windows, and bird-friendly windows across two years. Methods Using published data from eight buildings monitored for collisions in year 1 (Fall and Winter, 2019–2020), we added another year of monitoring, Fall and Winter, 2020–2021. Between years, Feather Friendly®mitigation markers were added to collision-prone areas of two buildings, including both mirrored and transparent windows. Results The two buildings that received new Feather Friendly®mitigation had significantly fewer collisions post-mitigation. Control areas also had nonsignificant decline in collisions. The interaction of area (mitigation vs. control) by time (year 1 vs. 2) was significant, based on generalized estimating equations (GEE). The total yearly collisions across all eight buildings declined from 39 to 23. A second GEE analysis of all 8 buildings showed that mirrored windows, pear trees, and bird-friendly windows were each significant when analyzed separately. The best-fit model showed more collisions for mirrored windows and fewer collisions for bird-friendly windows. We found pear tree proximity to be related to more collisions in winter than fall. In addition, pear trees showed reduced collisions from year 1 to 2, consistent with new mitigation for two of three buildings near pear trees. Discussion Feather Friendly® markers can mitigate collisions with transparent windows, not only mirrored windows, compared to unmitigated areas over 2 years. Results also underscore the dangers of pear tree proximity and mirrored windows and the efficacy of bird-friendly windows. Thus, bird collisions can be prevented by window mitigation, permanent bird-friendly windows, and landscape designs that avoid creating ecological traps.
Specific mutations in the genes of MC1R and TYR have an important influence on the determination of pheomelanin pigmentation in Korean native chickens

Objective: The TYR (Tyrosinase) and MC1R (Melanocortin 1 receptor) genes are recognized as important genes involved in plumage pigmentation in Korean native chickens. Specifically, most color patterns in chicken result from differential expression of the TYR gene. In this study, the co-segregation of the pigmentation and sequence of the TYR and MC1R genes was investigated through intercrosses between red (R1q1), red with black and black plumage color types of native Korean chickens. Materials and Methods: Using DNA, RNA, and tissue by plumage color of each Korean native chickens, the role of major genes in pigmentation of pheomelanin was evaluated. Reverse transcription polymerase chain reaction, sequencing, western blot, and immunohistochemical were performed to determine the effect of TYR and MC1R genes on plumage pigmentation in Korean native chickens. Results: The KCO line (Korean chicken Ogol: Black-line) with an EEC _ genotype exhibited black feathers, whereas red and red mixed with black chicken with EeC genotype exhibited white feathers. There were notable differences between the base sequences of MC1R and TYR in three Korean chicken breeds, with the highest variation in TYR. Perhaps this is the key characteristics of Korean chicken. Further, we analyzed the expression patterns of MC1R and TYR genes in each type of Korea native chicken and observed that TYR expression was high in feather follicle (R1q2) of KCO tissue. However, native red (Korean chicken red) and native red with black (Korean chicken red dark) chickens have increased TYR expression in the tissue. However, the expression of MC1R was much different from that of TYR. Conclusion: In this study, our results suggest that the differences in position and TYR expression levels exert more influence on plumage pigmentation in native Korean chicken breeds than changes in MC1R expression levels.
A technique for phase correction in Fourier transform spectroscopy

Fourier transform spectroscopy (FTS) is a type of spectroscopy that can be used to analyze components in the sample. The basic setup that is commonly used in this technique is “Michelson interferometer”. The interference signal obtained from interferometer can be Fourier transformed into the spectral pattern of the illuminating light source. To experimentally study the concept of the Fourier transform spectroscopy, the project started by setup the Michelson interferometer in the laboratory. The implemented system used a broadband light source in near infrared region (0.81-0.89 μm) and controlled the movable mirror by using computer controlled motorized translation stage. In the early study, there is no sample the interference path. Therefore, the theoretical spectral results after the Fourier transformation of the captured interferogram must be the spectral shape of the light source. One main challenge of the FTS is to retrieve the correct phase information of the inferferogram that relates with the correct spectral shape of the light source. One main source of the phase distortion in FTS that we observed from our system is the non-linear movement of the movable reference mirror of the Michelson interferometer. Therefore, to improve the result, we coupled a monochromatic light source to the implemented interferometer. We simultaneously measured the interferograms of the monochromatic and broadband light sources. The interferogram of the monochromatic light source was used to correct the phase of the interferogram of the broadband light source. The result shows significant improvement in the computed spectral shape.