Bounds for the faber coefficients of certain classes of functions analytic in an ellipse

Let Omega be a bounded, simply connected domain in C with 0 is an element of Omega and aOmega analytic. Let S(Omega) denote the class of functions F(z) which are analytic and univalent in Omega with F(0) = 0 and F'(0) = 1. Let {Phi(n)(z)} infinity n=0 be the Faber polynomials associated with Omega. If F(z) is an element of S(Omega), then F(z) can be expanded in a series of the form where r > 1. In this paper we obtain sharp bounds for the Faber coefficients A(0), A(1) and A(2) of functions F(z) in S(E-r) and in certain related classes.Publisher's Versio

Imaging patterns of fatty liver in pediatric patients

Fatty liver can present as focal, diffuse, heterogeneous, and multinodular forms. Being familiar with various patterns of steatosis can enable correct diagnosis. In patients with equivocal findings on ultrasonography, magnetic resonance imaging can be used as a problem solving tool. New techniques are promising for diagnosis and follow-up. We review imaging patterns of steatosis and new quantitative methods such as proton density fat fraction and magnetic resonance elastography for diagnosis of nonalcoholic fatty liver disease in children

Hepatocyte-specific contrast-enhanced MRI findings of focal nodular hyperplasia-like nodules in the liver following chemotherapy in pediatric cancer patients

PURPOSEWe aimed to assess the MRI findings and follow-up of multiple focal nodular hyperplasia (FNH)- like lesions in pediatric cancer patients diagnosed by imaging findings.METHODSWe retrospectively analyzed clinical data and MRI examinations of 16 pediatric patients, who had been scanned using gadoxetate disodium (n=13) and gadobenate dimeglumine (n=3). Hepatic nodules were reviewed according to their number, size, contour, T1- and T2-weighted signal intensities, arterial, portal, delayed and hepatobiliary phase enhancement patterns. Follow-up images were evaluated for nodule size, number, and appearance.RESULTSAll 16 patients received chemotherapy in due course. Time interval between the initial diagnosis of cancer and detection of the hepatic nodule was 2–14 years. Three patients had a single lesion, 13 patients had multiple nodules. The median size of the largest nodules was 19.5 mm (range, 8–41 mm). Among 16 patients that received hepatocyte-specific agents, FNH-like nodules appeared hyperintense in 11 and isointense in 5 on the hepatobiliary phase. During follow-up, increased number and size of the nodules were seen in 4 patients. The nodules showed growth between 6–15 mm.CONCLUSIONLiver MRI using hepatocyte-specific agents is a significant imaging method for the diagnosis of FNH-like lesions, which can occur in a variety of diseases. Lesions can increase in size and number in pediatric patients

Trayectorias laborales de jóvenes trabajadores de la actividad vitivinícola : departamento Maipú, Mendoza

La presente investigación tuvo como eje los vínculos entre educación y trabajo en la vitivinicultura mendocina desde 1990 . El objetivo general fue comprender los procesos de incorporación de jóvenes de ambos sexos al mundo del trabajo y su vínculo con las estrategias de formación y los esquemas de percepción en el mercado vitivinícola mendocino desde los 90. Se analizaron e identificaron los tipos de trayectorias educativas, laborales y transiciones existentes en los jóvenes. También los condicionantes de género que operan desde la perspectiva de las mujeres jóvenes. Se buscó comprender las formas que adquieren, cómo se manifiestan y varían las perspectivas acerca del trabajo, de las exigencias laborales y las condiciones del mercado de trabajo a lo largo de las trayectorias educativas y laborales y cuáles son los principales elementos constitutivos de las trayectorias de inserción, qué factores están asociados a sus variaciones y cómo se vinculan con las expectativas y estrategias de formación de inserción laboral.Fil: Martín, María Eugenia. CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas) - Universidad Nacional de CuyoFil: Zamarbide, Gabriela. Universidad Nacional de Cuy

Role of varicocele treatment in assisted reproductive technologies

Objective: In this review, we investigate the advantage of varicocele repair prior to assisted reproductive technologies (ART) for infertile couples and provide cost analysis information. Materials and methods: We searched the following electronic databases: PubMed, Medline, Excerpta Medica Database (Embase), Cumulative Index to Nursing and Allied Health Literature (CINAHL). The following search strategy was modified for the various databases and search engines: ‘varicocele’, ‘varicocelectomy’, ‘varicocele repair’, ‘ART’, ‘in vitro fertilisation (IVF)’, ‘intracytoplasmic sperm injection (ICSI)’. Results: A total of 49 articles, including six meta-analyses, 32 systematic reviews, and 11 original articles, were included in the analysis. Bypassing potentially reversible male subfertility factors using ART is currently common practice. However, varicocele may be present in 35% of men with primary infertility and 80% of men with secondary infertility. Varicocele repair has been shown to be an effective treatment for infertile men with clinical varicocele, thus should play an important role in the treatment of such patients due to the foetal/genetic risks and high costs that are associated with increased ART use. Conclusion: Varicocele repair is a cost-effective treatment method that can improve semen parameters, pregnancy rates, and live-birth rates in most infertile men with clinical varicocele. By improving semen parameters and sperm structure, varicocele repair can decrease or even eliminate ART requirement. Keywords: Assisted reproductive technology, In vitro fertilisation, Intracytoplasmic sperm injection, Varicocele, Varicocelectom

Aras Nehri’nde (Yağan Mevkii) Yaşayan Acanthalburnus microlepis, Filippi 1863 Türünün Büyüme ve Üreme Özellikleri

The age, growth and reproduction characteristics of 1105 Acanthalburnus microlepis from the Ya¤an region of the Aras River, Turkey, were determined from monthly samples. Ages ranged from 1 to 7 years. The sex ratio was approximately 1.0 (51.49 % males, 48.51 % females). Females attained greater size and age than males. Von Bertalanffy growth parameters were: L∞= 29.87 cm, K= 0.1049, to= -1.92. The length-weight relationships for males and females were found to be W=0.0099L3.098 and W=0.0118L3.052 respectively. The condition coefficients of males and females were calculated as 1.192 and 1.209 respectively. Both sexes matured at the age of 2 years. Spawning started in early May and continued to the end of July. Fecundity ranged from 2830 to 9705 eggs/female and correlated significantly with fish length, weight, age and gonad weightBu araştırmada, Temmuz 1996 ve Haziran 1998 tarihleri arasında Aras Nehri’nin Yağan bölgesinden aylık olarak yakalanan 1105 adet Acanthalburnus microlepis türü incelenmiştir. Örnekler 1-7 yaşlar arasında dağılım göstermiş olup, %51.49’u erkekler, %48.51’i dişilerden oluşmaktadır. Dişiler, erkelerden daha büyük boy ve yaşlara ulaşmış olup, Von Bertalanffy büyüme parametreleri L∞= 29.87 cm, K= 0.1049, to= -1.92 olarak hesaplanmıştır. Boy-ağırlık ilişkileri erkek ve dişiler için sırasıyla; W=0.0099L3.098 ve W=0.0118L3.052 olarak hesaplanmıştır. Her iki cinsiyette de 2 yaşında cinsi olgunluğa ulaşan bireylerde üreme Mayısın ilk haftasında başlayıp, Temmuzun sonuna kadar devam etmiştir. Fekondite 2830-9705 adet/dişi arasında değişmiş olup, balığın boyu, yaşı, gonad ve toplam ağırlığı ile birlikte artmıştır

Focal fatty sparing areas of the pediatric steatotic liver: pseudolesions on hepatobiliary phase magnetic resonance images

PURPOSEFocal fatty sparing in liver can be detected as hyperintense pseudolesions on hepatobiliary phase magnetic resonance imaging (MRI). Distinguishing these pseudolesions from liver lesions may make diagnosis challenging. The aim of this study was to evaluate the imaging features of fatty sparing areas on liver MRI in pediatric patients who have been administered gadoxetate disodium.METHODSA total of 63 patients between January 2018 and June 2023 underwent gadoxetate disodium-enhanced liver MRI, and 9 (14%) patients with a focal fatty sparing were included in the study. The fat spared areas were evaluated qualitatively and quantitatively including signal intensity measurements and fat fraction calculations.RESULTSThe liver MRI examinations of 9 patients (5 boys, 4 girls; aged 8–18 years, median age: 14.4) using gadoxetate disodium were evaluated. Based on in-phase and opposed-phase sequences, 13 areas of focal fatty sparing were identified. The mean fat fraction of the liver and fat spared areas were 26.2% (range, 15-47) and 9% (range, 2-17), respectively. All fat spared areas were hyperintense in the hepatobiliary phase images. The mean relative enhancement ratios of the liver and fat spared areas were 0.78 (range, 0.35-1.6) and 1.11 (range, 0.45-1.9), respectively.CONCLUSIONFocal fatty sparing in liver in children was observed as hyperintense on hepatobiliary phase MRI, and it should not be identified as a focal liver lesion

Aras Nehri'nde (Yağan Mevkii) yaşayan acanthalburnus microlepis, Flippi 1863 türünün büyüme ve üreme özellikleri

Bu araştırmada, Temmuz 1996 ve Haziran 1998 tarihleri arasında Aras Nehri nin Yağan bölgesinden aylık olarak yakalanan 1105 adet Acanthalburnus microlepis türü incelenmiştir. örnekler 1-7 yaşlar arasında dağılım göstermiş olup, %51.49 u erkekler, %48.51 i dişilerden oluşmaktadır. Dişiler, erkelerden daha büyük boy ve yaşlara ulaşmış olup, Von Bertalanffy büyüme parametreleri L?= 29.87 cm, K= 0.1049, to= -1.92 olarak hesaplanmıştır. Boy-ağırlık ilişkileri erkek ve dişiler için sırasıyla; W=0.0099L3.098 ve W=0.0118L3.052 olarak hesaplanmıştır. Her iki cinsiyette de 2 yaşında cinsi olgunluğa ulaşan bireylerde üreme Mayısın ilk haftasında başlayıp, Temmuzun sonuna kadar devam etmiştir. Fekondite 2830-9705 adet/dişi arasında değişmiş olup, balığın boyu, yaşı, gonad ve toplam ağırlığı ile birlikte artmıştır.The age, growth and reproduction characteristics of 1105 Acanthalburnus microlepis from the Yağan region of the Aras River, Turkey, were determined from monthly samples. Ages ranged from 1 to 7 years. The sex ratio was approximately 1.0 (51.49 % males, 48.51 % females). Females attained greater size and age than males. Von Bertalanffy growth parameters were: $L_{0}$= 29.87 cm, K= 0.1049, $t_{0}$= -1.92. The length-weight relationships for males and females were found to be W=0.0099$L^{3.098}$ and W=0.0118$L^{3.052}$ respectively. The condition coefficients of males and females were calculated as 1.192 and 1.209 respectively. Both sexes matured at the age of 2 years. Spawning started in early May and continued to the end of July. Fecundity ranged from 2830 to 9705 eggs/female and correlated significantly with fish length, weight, age and gonad weight

Karasu Irmağında (Erzurum-Türkiye) Yaşayan Chalcalburnus mossulensis (Heckel, 1843)’in Yaş ve Büyüme Özellikleri

The relationship of age, growth and length-weight was analyzed for Chalcalburnus mossulensis from the Aflkale region of Karasu River from November 1995 to October 1997. Fish in the sample groups were between 1 and 7 years and the ratio of males to females was 1:1.08. Von Bertalanffy equations were used to find the growth in length for both sexes. The growth parameters for males and females were estimated to be L∞ = 19.88869 cm, K = 0.1867795 and t0 = -2.3 and L∞ = 21.8742 cm, K = 0.168014 and t0 = -2.1, respectively. We also found that the length-weight relationships were a = 0.0129 and b = 2.913 for males and a = 0.073 and b = 3.136 for femalesKarasu nehrinden (Aflkale bölgesi) Kasım 1995 ile Ekim 1997 tarihleri arasında yakalanan Chalcalburnus mossulensis’in yaş, büyüme ve boy-ağırlık ilişkisi araştırıldı. Toplanan örneklerde yaş dağılımının 1-7 arasında değiştirildiği ve erkek:dişi oranının 1:1,08 olduğu tespit edildi. Boyca büyüme her iki cinsiyet için von Bertalanffy denklemi ile ifade edildi. Büyüme parametreleri dişilerde; L∞ = 19,88869 cm, K = 0,1867795, t0 = -2,3, erkeklerde L∞ = 21,8742 cm, K = 0,168014, t0 = -2,1 olarak tespit edildi. Boy-ağırlık ilişkisi erkeklerde a = 0,0129, b = 2,913 ve dişilerde a = 0,073, b = 3,136 olarak tespit edildi