Miracle-dz/UniFAR-FTUs huggingface dataset:
Clinical Characteristics of Primary Vitreoretinal Lymphoma in an Indian Population

ABSTRACT Purpose: Primary vitreoretinal lymphomas (PVRL) pose a major diagnostic challenge, especially in the countries with a high prevalence of infectious variety of uveitis. The present study aims to report the clinical characteristics and diagnostic difficulties in patients with PVRL in an Indian Population.Methods: Retrospective chart reviews of 12 patients with a diagnosis of PVRL.Results: The study included 6 men and 6 women, with a mean age of 55.66 ± 8.76 years. All had bilateral disease. The clinical signs included anterior uveitis (12 eyes; 50.0%); vitritis (18 eyes; 75%); vitreous clumps (16 eyes; 66.6%); subretinal deposits (11 eyes; 45.8%); retinal vasculitis (6 eyes; 25%); and optic disc swelling (2 eyes; 8.3%). The most commonly mistaken diagnosis was intraocular tuberculosis. The intraocular lesions responded to multiple intravitreal methotrexate injections.Conclusions: PVRL in India was likely to be mistaken for an infectious variety of uveitis. A high index of suspicion and thorough clinical examination is necessary to make the diagnosis.
Singular perturbations for a problem of cardiac images tracking

The result presented in this article is an adaptation of the gradient flow technique applied to a periodic problem combined with a singular perturbation method. The motivation for considering such a question originates from problems of cardiac images segmentation and of tracking cardiac images in medical image analysis. The 'elastic deformable template' model introduced previously for image segmentation is improved and adapted to the image tracking problem. A result of convergence is proved, for a periodic linear elastic model, the elastic tensor of which vanishes, when the parameter associated to the quasi-static technique goes to infinity.
Balanced Scheduling of Independent File-Sharing Tasks in Heterogenous Environment

Problem statement: To examine the strategies for scheduling of independent file-sharing tasks in a heterogeneous environment and the concept of load balancing. Approach: We propose hypergraph partitioning based strategy for the scheduling of non-critical jobs. This is done by scheduling the tasks that share tasks among them to the same processor. The tasks thus scheduled are employed to a load balancing scheme for balancing the load on the processors by considering the average load on all processors. Results: This strategy reduces the input output overheads among the tasks thus reducing the end-point contention. Conclusion: Thus the batch execution time on the processors is reduced.
Customers’ Behaviour Analysis in Furniture Field: IKEA Case in the Northern part of Bari province

Between the 70es and the 80es, the firm strategy – meant as the whole of choices to make in order to achieve long-term targets, or, as defined by SWOT Analysis, which one referred to during the economic boom years – gives way to the strategic planning and the strategic management. In such a reference picture, the present situation of IKEA store in Bari (Puglia, Italy) is included. This study target is, therefore, to determine what can be the reasons linked to a different purchase choice by a particular group of individuals on a Primary Market Area.
Nonisolated Bidirectional Zero-Voltage-Switching DC–DC Converter

A new nonisolated bidirectional zero-voltage-switching (ZVS) dc-dc converter is proposed. The proposed converter can operate with ZVS, fixed switching frequency, and a ripple-free inductor current regardless of the direction of power flow. To provide ZVS of the power switches and a ripple-free inductor current, the proposed converter utilizes a very simple auxiliary circuit that consists of an additional winding to the main inductor and an auxiliary inductor. Due to ZVS operation, the reverse recovery problem of the antiparallel body diode of the power switch does not occur. Moreover, the ripple-free inductor current can reduce the voltage ripple. Theoretical analysis of the proposed bidirectional dc-dc converter and the experimental results obtained on 100-W prototype are discussed.
The Pharmacological Channel Revisited: Alcohol Sales Restrictions and Crime in Bogotá

This paper attempts to evaluate the impact on crime of the restriction of late-night alcohol sales in Bogota and quantify the causal effect of problematic alcohol consumption on different crime categories. It is found that the restriction reduced deaths and injuries in car accidents and batteries. The results are stronger in areas where the restriction was actually binding and are highly heterogeneous depending on the number of liquor stores restricted at the block level. Finally, the paper measures the impact of the restriction on alcohol consumption (the first stage, or mechanism), and quantifies the causal pharmacological impact of alcohol consumption on crime using the restriction as an instrument for problematic alcohol consumption (the second stage). The results indicate that a one standard deviation (s. d. ) increase in problematic alcohol consumption increases deaths and injuries in car accidents by 0. 51 s. d and 0. 82 s. d. respectively, and batteries by 1. 27 s. d.
Time Course of Eye Movements during Painting Perception

The paper explores the time course of eye-movements while looking at famous paintings belonging to two styles of representational art – surrealist (Dali) and baroque (Caravaggio). The influence of two factors is studied: the task of the viewer (‘aesthetic rating’ or ‘content description’) and the information about the painting (title of the painting is presented or not). Characteristics of eye-movements such as fixation duration and saccade amplitudes are analyzed as they are considered to be measures of global vs. focal processing. The time course was measured by dividing the viewing in two parts (the first ten saccades and afterwards). As the time progresses, there is an increase of fixation duration, a decrease of saccade amplitudes, and a decrease of the informativeness of the zones attended. This is evidence that in the beginning there is global exploration of the painting and its most important elements; and next there is more focused exploration of specific elements and features. Fixation duration and saccade amplitudes are also influenced by the style of the painting. The presentation of the titles and the task of the viewer influence saccade amplitudes.
GSA based optimal capacity configuration of wind-solar-storage system in microgrid

For the poor operation reliability and low economic benefit of wind-photovoltaic generation system in microgrid, an optimal capacity configuration method based on gravitational search algorithm (GSA) is proposed in this paper, to increase reliability and economic benefits of combined wind-solar-storage system in microgrid. Based on power output models of different types of renewable power resources, an optimal mathematical model is established with multiple objective functions of minimal costs, energy wastage rate and loss of power supply probability. The concept of GSA is introduced and specific steps of solving this problem is explained. Eventually, a case studied is discussed and analyzed to verify the feasibility and effectiveness of proposed method.
From business processes to software services and vice versa—an improved transition through service‐oriented requirements engineering

Business processes need to be agile and flexible to help organizations stay competitive. For this purpose, SOA promises the reuse of already existing information system functionality for enabling enterprises to change the business processes more quickly. However, many promises made by SOA authors have not found their way into practice, because methodological guidance that constructively assures a more successful SOA application is still missing. In this article, service‐oriented requirements engineering is therefore introduced as a discipline aiming at a better and more systematic handling and alignment of SOA and Business Process Management. Our industrial experience in this regard is also described. Copyright © 2011 John Wiley & Sons, Ltd.
Mechanical properties of plasma membrane and nuclear envelope measured by scanning probe microscope

Atomic force microscopy has been used to visualize nano‐scale structures of various cellular components and to characterize mechanical properties of biomolecules. In spite of its ability to measure non‐fixed samples in liquid, the application of AFM for living cell manipulation has been hampered by the lack of knowledge of the mechanical properties of living cells. In this study, we successfully combine AFM imaging and force measurement to characterize the mechanical properties of the plasma membrane and the nuclear envelope of living HeLa cells in a culture medium. We examine cantilevers with different physical properties (spring constant, tip angle and length) to find out the one suitable for living cell imaging and manipulation. Our results of elasticity measurement revealed that both the plasma membrane and the nuclear envelope are soft enough to absorb a large deformation by the AFM probe. The penetrations of the plasma membrane and the nuclear envelope were possible when the probe indents the cell membranes far down close to a hard glass surface. These results provide useful information to the development of single‐cell manipulation techniques.
MYELINATION IN RAT BRAIN: CHANGES IN MYELIN COMPOSITION DURING BRAIN MATURATION 1

Abstract— Myelin was isolated from rat brains during development by a procedure giving fractions of constant purity at all ages. The lipid composition of these fractions and of whole brains of littermates was determined. The amount of myelin recovered per brain was a nearly linear function of the logarithm of age from the youngest (15 days) to the oldest (425 days) animals studied. With the exception of the earliest age point, the isolated myelin accounted for approximately 40 per cent of total brain galactolipid, evidence that a constant fraction (calculated to be 60 per cent) of myelin was recovered at all ages. Although the lipid‐protein ratio of the myelin was constant with age, marked changes were seen in the amounts of cerebroside, sulphatide, phosphatidylcholine and desmosterol. The total galactolipid increased from 21 per cent of the total lipid at age 15 days to about 31 per cent at maturity. Phosphatidylcholine decreased from 17 to 11 per cent during the same period. Desmosterol decreased from 2.5 per cent of the total sterol to 0.2‐0.3 per cent. All of these changes were complete between 2 and 5 months of age; no other ‘lower phase’ lipids showed significant changes with age. Although qualitatively similar to those reported by others, the changes differed in magnitude, with more stability in the levels of cholesterol and phosphatidalethanolamine with development. A sensitive indicator of the maturation of myelin was the mole ratio galactolipid/phosphatidylcholine, which varied from 1.2 at age 15 days to 2.8 at maturity. The maximum rate of myelination occurred at 20 days of postnatal age when myelin was deposited at the rate of 3.5 mg day−1 brain−1. However, at this age the rat brain had only 15 per cent of its eventual complement of myelin. The rate of accumulation of cerebroside in the whole brain paralleled that of myelin, and was the only lipid to show this relationship. Myelin deposition appeared to be almost solely responsible for the continued increase in brain weight after about 100 days of age.
MMIC GaN power amplifier with bidirectional operation for RF-to-DC conversion

GaN technology has shown improved characteristics at high power and high frequency conditions, playing a key opportunity in the space industry. In this way, this paper presents a GaN-based MMIC power amplifier (PA), designed for X-band space applications. The PA design consists of a single stage class-B and achieves 10.5 dB gain at 9 GHz and an output power of 32 dBm. It is verified that the MMIC can operate also as a rectifier, with a conversion efficiency of around 40 % for a CW input signal of 28 dBm at 8 GHz. Additionally, two-tone measurements are performed and compared to the CW ones.
New Properties of All Real Functions.

In a former papert the author communicated a number of properties of every real function f (x) ; these were stated in terms of the successive saltus functions associated with a given function. The present paper makes no use of the saltus functions, and the new properties are direct qualifications of f (x). Since f (x) is entirely unrestricted, except, of course, that it is defined t and therefore finite for every real x-these qualifications are consequences of nothing else than that f (x) is a function. A new light is thus thrown upon the nature of a function. The new properties are of two types, descriptive and metric; the former are concerned with density, and the latter with measure (Lebesgue). For the sake of greater concreteness of exposition, we shall discuss, for the most part, planar sets and real functions of two real variables.
The age-related change of glutathione antioxidant system in mice liver

Abstract Cellular glutathione (GSH) antioxidant system is an important defensive system of the body, which is crucial in the protection against oxidative stress-induced liver injury. The present study was designed to observe the difference of this system in the liver of mice with 1-month- and 12-month-old. Liver reduced GSH level was showed no difference between these two groups of mice. Next, the results showed that liver glutamate-cysteine ligase (GCL) activity was higher in mice of 1-month- than 12-month-old, while glutathione-S-transferase (GST) activity was higher in mice of 12-month- than 1-month-old. Further results showed that the higher activity of liver GCL in 1-month-old mice was due to the higher expression of catalytic subunit of GCL (GCLc) mRNA, while the higher activity of liver GST in 12-month-old mice might be due to the higher expression of GSTA1, GSTA2, GSTP1 and GSTP2 mRNA. Taken together, our results revealed the age-related change of liver GSH antioxidant system in mice, which may be helpful for elucidating some age-related liver injury or diseases.
Renal trauma: indications for imaging and surgical exploration

Complications such as persistent urinary leakage and infected urinoma or perinephric abscess can be managed with percutaneous catheter drainage and/or ureteric stenting. Secondary haemorrhage from a pseudoaneurysm or arteriovenous fistula (AVF) can be managed successfully with selective arteriography and segmental arterial embolization in most cases, thus avoiding the need for open surgery. Hypertension directly attributable to renal injury is probably rare, and is most commonly managed with nephrectomy. There is a lack of data on renal insufficiency after trauma, but the severity of injury, renovascular trauma and associated injuries may compromise renal function.
Combined distal embolization protection and rheolytic thrombectomy to facilitate percutaneous revascularization of totally occluded saphenous vein grafts

Totally occluded saphenous vein grafts are difficult to treat percutaneously with a higher likelihood of distal embolization and slow‐flow or no‐reflow during percutaneous interventions. The PercuSurge system, which utilizes a distal balloon occlusive device, has been shown to improve clinical outcomes during saphenous vein graft (SVG) interventions. This device may not be optimal in the setting of heavy thrombus or debris burden, a situation frequently encountered in totally occluded SVGs. Rheolytic thrombectomy facilitates percutaneous interventions by effectively removing intraluminal thrombus and debris but lacks distal embolization protection. We report our experience with the synergistic use of balloon‐based distal embolization protection (PercuSurge) and rheolytic thrombectomy (AngioJet) to optimize percutaneous revascularization of totally occluded SVGs. Catheter Cardiovasc Interv 2003;60:212–217. © 2003 Wiley‐Liss, Inc.
Invasive ductal breast carcinoma detector that is robust to image magnification in whole digital slides

Abstract. Invasive ductal breast carcinomas (IDBCs) are the most frequent and aggressive subtypes of breast cancer, affecting a large number of Canadian women every year. Part of the diagnostic process includes grading the cancerous tissue at the microscopic level according to the Nottingham modification of the Scarff-Bloom-Richardson system. Although reliable, there exists a growing interest in automating the grading process, which will provide consistent care for all patients. This paper presents a solution for automatically detecting regions expressing IDBC in images of microscopic tissue, or whole digital slides. This represents the first stage in a larger solution designed to automatically grade IDBC. The detector first tessellated whole digital slides, and image features were extracted, such as color information, local binary patterns, and histograms of oriented gradients. These were presented to a random forest classifier, which was trained and tested using a database of 66 cases diagnosed with IDBC. When properly tuned, the detector balanced accuracy, F1 score, and Dice’s similarity coefficient were 88.7%, 79.5%, and 0.69, respectively. Overall, the results seemed strong enough to integrate our detector into a larger solution equipped with components that analyze the cancerous tissue at higher magnification, automatically producing the histopathological grade.
Time Budgets and Behavior of Nesting Bald Eagles

Time budgets for adult Bald Eagle (Haliaeetus leucocephalus) activities at nests were documented from mid-incubation to fledging at one nest and from hatching into the postfledging period at two nests. Time-lapse cameras recorded instantaneous samples of activity at 90 second intervals. Both sexes incubated eggs and brooded young. Eggs were incubated for 95% of daylight hours, with the female and male contributing 53% and 42% respectively. Total brooding time averaged 79% of each day 1-10 days after hatching and declined to 6% of each day 41-50 days after hatching. Both sexes delivered prey and the frequency of prey deliveries did not vary with the age or number of young in the nest. Females fed young 81-91% of the time and the number of feedings increased with the number of young in the nest. Weather variables had significant impact on nearly all nesting activities. Incubating and brooding rates increased with wind velocity and decreased with daily high temperature. Brooding rates also increased with daily precipitation and decreased with sunniness. Females tended to incubate and brood more and males less during periods of cold, wet, windy and cloudy weather. Prey delivery rates decreased with precipitation and feedings decreased with daily high temperature. Comparisons with other raptor species indicate that Bald Eagles share nesting duties between the sexes more than many birds of prey. Recommendations for minimizing human disturbance during the nesting cycle and the possible role of reversed sexual dimorphism in determining sex role differentiation are discussed.
A Wideband ADI-FDTD Algorithm for the Design of Double Negative Metamaterial-BasedWaveguides and Antenna Substrates

The accurate modeling of composite double negative metamaterials tailored for enhanced waveguide and antenna structures, is presented in this paper via a novel 3-D ADI-FDTD method. Developing a set of multi-directional operators for the discretization of such complex media, the unconditionally stable technique leads to broadband solutions and minimizes dispersion errors as time-step exceeds the Courant criterion. Hence, efficient microwave devices, loaded by periodic substrates of thin wires and split-ring resonators, can be optimally designed without the need of lengthy simulations
Heterosis in papaya hybrids from partial diallel of 'Solo' and 'Formosa' parents

The high cost of imported papaya seed in Brazil has motivated the conduction of the present study, which aimed at estimating heterosis effects and the indication of superior papaya hybrids, by means of a partial diallel scheme of eight genotypes from the groups 'Solo' and 'Formosa'. Parents and hybrids were evaluated in a randomized complete block design with four replications and 80 treatments (64 hybrids and 16 parents). Nine traits were evaluated and heterobeltiosis was verified for all traits. It was concluded that the diallel is a suitable strategy for the generation of papaya hybrids that meet national and international market standards. Superior hybrids with a view to further evaluation and cultivar release are those formed by the parents 'JS11' and 'JS 12' with the parents: 'Sunrise Solo-TJ', 'Sunrise Solo-72/12-IS', 'Santa Barbara', 'Baixinho de Santa Amalia', 'Sao Mateus' and 'Sunrise Solo-783'.
Bias in Using Family History as a Risk Factor in Case‐Control Studies of Disease

In many case-control studies of common diseases, investigators use family history information to assess familial aggregation of the disease and the influence of genetic factors. Positive family history among first-degree relatives is often used as a risk factor, and its odds ratio is calculated. Although the limitations of this approach have heen discussed, it is not clear how much impact such limitations could have on measuring familial aggregation. To assess this impact, we compare odds ratios derived from using a positive family history in case-control studies with measures of relative risk derived from comparing lifetime risks of disease among first-degree relatives of case subjects with those among first-degree relatives of control subjects. Positive family history is a function of the number of relatives, the background risk of disease, the age distribution of relatives, and the correlation in risk among relatives. It can be shown that even without case-control differences in the number or ages of relatives, positive family history tends to overestimate relative risk measures applied to individual relatives. This overestima-tion is accentuated with increasing frequency of the disease, with increasing number of relatives, and for diseases with earlier age at onset. It is further affected by even small case-control differences in family size and age distribution of relatives. As such, positive family history is not a stable indicator of familial aggregation across different case-control studies of the same disease.
Complexity modeling for coarse grain scalable (CGS) video decoding

This paper proposes a hybrid model to predict CGS-SVC decoding complexity. We take advantage of both the statistic characteristic of complexity features and linear relationship between quality layers to model the complexity. Experimental results show that the proposed method provides a good prediction accuracy for all quality layer. The whole average prediction error of test sequences is 1.51% approximately. Furthermore, the target platform can decode the suitable quality layer by our layer decision mechanism and an accurate prediction result.