A rare lesıon of breast: Hydatıd cyst

Hydatid cyst (HC) is a lesion most commonly seen in the liver but can occur in many parts of the body. Breast involvement with HC  is extremely rare. It can be isolated or accompanied by other organ involvements. In this report, we present a 46-year-old female with  isolated HC located in the right breast. In the ultrasonography and MR images of the patient, the lesion was compatible with the HC,  and homogenous dens lesion was shown on mammography. Diagnosis of HC was confirmed pathological. With this study, it was aimed to emphasize the radiological findings of isolated breast HC

Theoretical Limits on Time Delay Estimation for Ultra-Wideband Cognitive Radios

In this paper, theoretical limits on time delay estimation are studied for ultra-wideband (UWB) cognitive radio systems. For a generic UWB spectrum with dispersed bands, the Cramer-Rao lower bound (CRLB) is derived for unknown channel coefficients and carrier-frequency offsets (CFOs). Then, the effects of unknown channel coefficients and CFOs are investigated for linearly and non-linearly modulated training signals by obtaining specific CRLB expressions. It is shown that for linear modulations with a constant envelope, the effects of the unknown parameters can be mitigated. Finally, numerical results, which support the theoretical analysis, are presented.Comment: IEEE ICUWB 200

Efficacy of the endovascular ovarian vein embolization technique in pelvic venous congestion syndrome

Purpose: Pelvic pain, either related or unrelated to menstruation, is especially common in women of reproductive age. Thirty-nine per cent of all women suffer from chronic pelvic pain at some point in their lives, and pelvic venous congestion syndrome (PVCS) is the cause of this pain in 30% of cases. The aim of this study was to determine factors affecting the success of endovascular venous embolization used in the treatment of PVCS, and to present the longterm treatment results. Material and methods: The data of 144 female patients who underwent endovascular ovarian vein embolization for PVCS between January 2012 and July 2020 were retrospectively analysed. Results: Pain management was determined to be very successful in 37 (25.6%) patients, successful in 55 (38.1%), and unsuccessful in 52 (35.3%). Treatments using a coil alone were significantly more successful in pain management than those involving the use of different materials in addition to the coil (p = 0.036). In addition, patients with unilateral insufficiency before the procedure were found to have more successful pain management than those with bilateral insufficiency (p = 0.041). Reproductive/postmenopausal state and parity did not have a statistically significant effect on treatment efficacy (p = 0.250 and p = 0.573, respectively). Conclusions: Endovascular pelvic venous embolization is an important option in the treatment of PVCS due its less invasive and reproducible nature

The investigation of sportsmanship behaviors of university students

The aim of the present study was to examine the effective factors on sportsmanship behaviors of university students. With this purpose, students' attitudes for rules, injurious acts, opponent game perspective and sportsmanship behaviors were examined, and the effects of these factors were modeled via structural equation modeling. To measure the effective factors on students sportsmanship behaviors, a likert scale type questionnaire, ranging from 1 'strongly disagree' to 5 'strongly agree' was applied on a face-to-face basis. The sportsmanship questionnaire about sportsmanship was composed of 45 questions. In the statistical analysis obtained data, SPSS and LISREL software were used. The results of the analyses indicate that while "game perspective" is the most effective factor on students' sportsmanship behavior, the factors; "opponent", "rules", and "injurious acts" are also statistically significant.El objetivo del presente estudio fue examinar los factores efectivos sobre el comportamiento deportivo de los estudiantes universitarios. Con este propósito, se examinaron las actitudes de los estudiantes respecto a las reglas, los actos perjudiciales, la perspectiva del juego del oponente y los comportamientos de deportividad, y los efectos de estos factores se modelaron mediante el modelado de ecuaciones estructurales. Para medir los factores efectivos en los comportamientos de deportividad de los estudiantes, se aplicó un cuestionario tipo escala tipo Likert, que varía de 1 "totalmente en desacuerdo" a 5 "totalmente de acuerdo" en persona. El cuestionario de deportividad sobre deportividad estaba compuesto por 45 preguntas. En el análisis estadístico de los datos obtenidos, se utilizaron el software SPSS y LISREL. Los resultados de los análisis indican que si bien la "perspectiva del juego" es el factor más efectivo en el comportamiento deportivo de los estudiantes, los factores; "Oponente", "reglas" y "actos nocivos" también son estadísticamente significativos.O objetivo do presente estudo foi examinar os fatores efetivos no comportamento esportivo de universitários. Para tanto, foram examinadas as atitudes dos alunos em relação a regras, atos prejudiciais, a perspectiva de jogo do adversário e o comportamento esportivo, e os efeitos desses fatores foram modelados através da modelagem de equações estruturais. Para medir os fatores efetivos no comportamento esportivo dos alunos, foi aplicado um questionário da escala do tipo Likert, que varia de 1 "discordo totalmente" a 5 "concordo totalmente" pessoalmente. O questionário de espírito esportivo foi composto por 45 perguntas. Na análise estatística dos dados obtidos, foram utilizados os softwares SPSS e LISREL. Os resultados das análises indicam que, embora a "perspectiva do jogo" seja o fator mais eficaz no comportamento esportivo dos estudantes, os fatores; "Oponente", "regras" e "atos prejudiciais" também são estatisticamente significativos

Determination of permanent deformation of flexible pavements using finite element model

Nevezani zrnati materijal koji se koristi u savitljivim kolničkim konstrukcijama ponaša se elastoplastično pod utjecajem ponavljanih prometnih opterećenja. Trajne deformacije koje se javljaju na površini kolnika uslijed prometnog opterećenja jedan su od osnovnih problema koji negativno utječu na ponašanje kolničkih konstrukcija. Zbog toga su u novije vrijeme razvijeni brojni modeli za analizu trajnih deformacija, tj. za izračunavanje pojave kolotraga na kolnicima. Većina istraživanja koja se bave tim pitanjem temelje se na provedbi dinamičkih troosnih ispitivanja. U ovom je istraživanju deformabilnost nevezanih zrnatih materijala određena ispitivanjem prema metodi rezonantnog stupca. Također, umjesto određivanja ukupnih trajnih deformacija zbrajanjem izračunanih deformacija pojedinačnih slojeva kolnika, u ovom se radu na četiri različita tipa kolničkih konstrukcija provode dinamičke dvodimenzionalne osnosimetrične analize metodom konačnih elemenata kako bi se predvidjela ukupna trajna deformacija koja se javlja na površini kolnika nakon određenog broja ciklusa opterećenja. Nevezani slojevi za prvi modelirani tip kolničke konstrukcije sastoje se od prirodnog agregata. Nevezani nosivi sloj i/ili tamponski sloj preostalih triju kolničkih konstrukcija sastoji se od otpadnog materijala čelične zgure. Odnos trajnih deformacija i broja ciklusa opterećenja za sva četiri tipa kolničkih konstrukcija prikazan je na polulogaritamskim dijagramima. Za svaki je analizirani tip kolničke konstrukcije prikazana jednadžba trajnih deformacija.The unbound granular material used in flexible road pavements exhibits an elastoplastic behaviour under repetitive traffic loads. Permanent deformation occurring on pavement surface under traffic load is one of the main road pavement problems affecting road performance. Therefore, many permanent deformation models for calculating road pavement rutting have recently been developed by researchers. Most of these studies involve performance of dynamic triaxial tests. In this study, deformation characteristics of unbound granular materials are determined using the resonant column test. Then, instead of determining the total permanent deformation by summing up the calculated permanent deformations obtained in each pavement layer, dynamic 2D axisymmetric finite element analyses are performed for four different pavement cross sections to predict the total permanent deformation occurring on pavement surface under certain load cycles. The first modelled cross section of unbound granular material consists of natural aggregate. The base and/or subbase of remaining three cross sections consists of steel slag waste material. The permanent deformation versus load cycle is presented for four multi-layer road cross sections using semi logarithmic graphs. Finally, the permanent deformation model equation is developed for each pavement cross section using their fitting curves

Characterization of greater middle eastern genetic variation for enhanced disease gene discovery

The Greater Middle East (GME) has been a central hub of human migration and population admixture. The tradition of consanguinity, variably practiced in the Persian Gulf region, North Africa, and Central Asia1-3, has resulted in an elevated burden of recessive disease4. Here we generated a whole-exome GME variome from 1,111 unrelated subjects. We detected substantial diversity and admixture in continental and subregional populations, corresponding to several ancient founder populations with little evidence of bottlenecks. Measured consanguinity rates were an order of magnitude above those in other sampled populations, and the GME population exhibited an increased burden of runs of homozygosity (ROHs) but showed no evidence for reduced burden of deleterious variation due to classically theorized ‘genetic purging’. Applying this database to unsolved recessive conditions in the GME population reduced the number of potential disease-causing variants by four- to sevenfold. These results show variegated genetic architecture in GME populations and support future human genetic discoveries in Mendelian and population genetics

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at root s=13 TeV

Peer reviewe

Measurement of the top quark mass using charged particles in pp collisions at root s=8 TeV

Peer reviewe