In view of the recent results of lattice QCD simulation in the P11 partial wave that has found no clear signal for the three-quark Roper state we investigate a different mechanism for the formation of the Roper resonance in a coupled channel approach including the πN, πDelta, and σN channels. We fix the pion-baryon vertices in the underlying quark model while the s-wave sigma-baryon interaction is introduced phenomenologically with the coupling strength, the mass, and the width of the σ meson as free parameters. The Laurent- Pietarinen expansion is used to extract the information about the S-matrix pole. The Lippmann-Schwinger equation for the K matrix with a separable kernel is solved to all orders. For sufficiently strong σNN coupling the kernel becomes singular and a quasibound state emerges at around 1.4 GeV, dominated by the σN component and reflecting itself in a pole of the S matrix. The alternative mechanism involving a (1s)22s quark resonant state is added to the model and the interplay of the dynamically generated state and the three-quark resonant state is studied. It turns out that for the mass of the three-quark resonant state above 1.6 GeV the mass of the resonance is determined solely by the dynamically generated state, nonetheless, the inclusion of the three- quark resonant state is imperative to reproduce the experimental width and the modulus of the resonance pole.
In view of the recent results of lattice QCD simulation in the P11 partial wave that has found no clear signal for the three-quark Roper state we investigate a different mechanism for the formation of the Roper resonance in a coupled channel approach including the πN , π∆ and σN channels. We fix the pion-baryon vertices in the underlying quark model while the s-wave sigma-baryon interaction is introduced phenomenologically with the coupling strength, the mass and the width of the σ meson as free parameters. The Laurent-Pietarinen expansion is used to extract the information about the S-matrix pole. The Lippmann-Schwinger equation for the K matrix with a separable kernel is solved to all orders. For sufficiently strong σNN coupling the kernel becomes singular and a quasi-bound state emerges at around 1.4 GeV, dominated by the σN component and reflecting itself in a pole of the S-matrix. The alternative mechanism involving a (1s)2s quark resonant state is added to the model and the interplay of the dynamically generated state and the three-quark resonant state is studied. It turns out that for the mass of the three-quark resonant state above 1.6 GeV the mass of the resonance is determined solely by the dynamically generated state, nonetheless, the inclusion of the three-quark resonant state is imperative to reproduce the experimental width and the modulus of the resonance pole.
Generally, the probability density function (PDF) of orthogonal frequency division multiplexing (OFDM) signal amplitudes follow the Rayleigh distribution, thus, it is difficult to correctly predict the existence of impulsive noise (IN) in powerline communication (PLC) systems. Compressing and expanding the amplitudes of some of these OFDM signals, usually referred to as companding, is a peak-to-average power ratio reduction technique that distorts the amplitudes of OFDM signals towards a uniform distribution. We suggest its application in PLC systems, such as IEEE 1901 powerline standard (which uses OFDM) to reduce the impacts of IN. This is because the PLC channel picks up impulsive interference that the conventional OFDM driver cannot combat. We explore, therefore, five widely used companding schemes that convert the OFDM signal amplitude distribution to uniform distribution to avail the mitigation of IN in PLC system receivers by blanking, clipping and their hybrid (clipping-blanking). We also apply nonlinear optimization search to find the optimal mitigation thresholds and results show significant improvement in the output signal-to-noise ratio (SNR) for all companding transforms considered of up to 4 dB SNR gain. It follows that the conventional PDF leads to false IN detection, which diminishes the output SNR when any of the above three nonlinear memoryless mitigation schemes is applied.
Introduction: Single nucleotide polymorphisms (SNPs) have lately been used for prediction of metabolic processes that may be related to obesity. The aim of our study was to examine the association of SNPs of several genes with obesity and physical activity in 18 healthy volunteers. Methods: We used buccal swabs to collect and extract DNA from 18 volunteers. Pyrosequencing was used for molecular analysis of 13 polymorphisms in 10 genes (APOA2, MTHFR, MCM6, peroxisome proliferators-activated receptor gamma, FABP2, beta-2-adrenergic receptor (ADRB)2, ADRB3, A-actinin-3, angiotensin-converting enzyme, and FUT2). The volunteers’ personal data included body mass index (BMI), dietary practice and information on daily fitness and workout routine. Association between the 13 observed gene polymorphisms and individual BMI status (normal or overweight) was analyzed. Results of the DNA analysis were used for the expert evaluation by nutritionists and physiologists to obtain optimal regulation of nutrition and exercise. The volunteers had a dietary and fitness program for 12 months which they tracked by filling in a suitable study form. Results: 14 volunteers had a moderate genetic predisposition for abdominal adipose-tissue accumulation, while 4 of them had genotypes not associated with abdominal fat tissue accumulation. A statistically significant difference was found between the value of BMI before and after the implementation of personalized training and nutrition plan within the group of overweight volunteers (paired sample t=3.382; p = 0.006; exact p = 0.015). The single-locus F-test showed no association between the gene polymorphisms and BMI values. In addition, no correlation was detected between the gene polymorphisms and amount of BMI reduction prior and after the implementation of the personalized training and nutrition plan within the overweighed group of volunteers. Conclusion: Optimal nutrition and training plan are crucial for the BMI reduction as observed in the overweighed volunteers after the 12-month personalized training and individualized nutrition plan. However, the analyzed polymorphisms were not significantly associated with the obesity in this study.
It is known today that psycho-trauma and PTSD cause different levels of mental and social dysfunction. Human spirituality and capacity to meet further life diffi culties become severely damaged. There is wide accepted attitude today that in holistic approach in process of healing PTSD and psycho-trauma is necessary to include other professionals from community resource regarding needs of trauma victims. In Bosnia and Herzegovina after very severe war (1992-1995) as mental health professionals, we are faced with increasing number of different mental health disorders as result of severe trauma experiences. Regarding community based care orientation it is necessary to include and religion professionals. According national and religious background of majority of our population in Tuzla Canton that is Muslim, we meet spiritual needs of our clients as needs for Islamic explanation of life and death meaning. Our clients need to talk about spiritual issues in daily therapy and to practice daily religious rituals. Regarding that in this paper we tried to interface Islamic principles and it’s benefi cial toward psycho-trauma and PTSD, as well as Muslim perspectives in attempt to apply spiritual practice in therapeutic tools for better effi cacy in spiritual healing of mental dysfunction’s of believers who survived severe trauma, especially war trauma. Review Article Spiritual and religious Islamic perspectives of healing of posttraumatic stress disorder Mevludin Hasanović*, Izet Pajević and Osman Sinanović Department of Psychiatry, University Clinical Center Tuzla, School of Medicine, University Tuzla, 75 000 Tuzla, Bosnia and Herzegovina, Tuzla, Bosnia *Address for Correspondence: Mevludin Hasanović, Department of Psychiatry, University Clinical Center Tuzla, School of Medicine, University Tuzla, 75 000 Tuzla, Bosnia and Herzegovina, Tuzla, Email: hameaz@bih.net.ba Submitted: 12 September 2017 Approved: 22 September 2017 Published: 25 September 2017 Copyright: 2017 Hasanović M, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Introduction: Co-existence type of ESBL-producing isolates are serious problem in the public health world. Methods Antibiotic susceptibility was determined by disc diffusion and broth microdilution according to CLSI guidelines. Double-disk synergy test was performed in order to screen for ESBLs/pAmpC beta-lactamases. PCR was used to detect blaESBL/blaampC/blacarb genes. Genetic relatedness of the strains was determined by pulsed-field-gel-electrophoresis (PFGE). Results In this study 88 of the inpatient isolates (n=126; 10.0%) and 62 of the outpatient (n=184; 6.4%) Beta-lactamase-producing isolates were taken for the study. They included 50.0/29.0% K. pneumoniae, 12.5/30.6% E. coli, 11.4/4.8% A. baumannii, 8.0/14.5% K. oxytoca, 8.0/4.8% E. cloacae, 5.7/8.1% Proteus spp., and less than 3.5% of other isolates. Co-existence of more than two type of beta-lactamases was detected in 77.3% of inpatient and 45.2% of outpatient isolates. Among inpatient isolates, Klebsiella spp. and E. coli were the most frequent isolates which produce more than two type of genes; in ≈ 65% and ≈12% cases. Separately, combination of four: TEM+SHV+CTX-M+OXA-1 beta-lactamases in inpatient K. pneumoniae isolates were detected in 63.6% cases respectively. Differents in antimicrobial resistance were higher to cephalosporins agents in Klebsiella spp., and E. coli at inpatient and outpatient isolates which produce more than two types of beta-lactamases than in isolates which produce one type of beta-lactamases. Conclusion: This work demonstrates a progressively increasing prevalence of co-existence type of beta-lactamases expecially in inpatient isolates. Continous monitoring and surveillance and proper infection control and prevention practice will limit the further spread of these isolates.
Ampullary cancer is a rare neoplasm of the pancreaticobiliary tract. Most of the ampullary neoplasms require surgical resection. Cephalic pancreaticoduodenectomy (CPD) has been performed laparoscopically at high-volume institutions worldwide. In this paper, we present a 63-year-old patient with painless jaundice, subjected to proximal endoscopy and biopsy of the lesion located in the papilla of Vater, which resulted in a diagnosis of the adenocarcinoma of the papilla of Vater. We performed laparoscopic CPD with appropriate lymphadenectomy. To the best of our knowledge, this complex and technically challenging surgical procedure is the first of this kind in our country and the region.
Lignit je mrki ugalj koji u svom sastavu sadrži huminsku kiselinu. Izolacija huminskih kiselina je vrsena iz prethodno oksidovanog i osusenog lignita nakon cega je vrseno preciscavanje. Identifikacija tako dobivenih huminskih kiselina vrsena je FTIR spektroskopijom, a njena karakterizacija UV analizom gde je određivana opticka gustina izolovane huminske kiseline i izvrsena njena kompleksacija sa metalnim katjonima. Podaci dobiveni FTIR spektroskopskom analizom za izolovanu huminsku kiselinu ne pokazuju znacajnu strukturnu i hemijsku razliku u odnosu na spektar dobiven za standardnu huminsku kiselinu (Sigma–Aldrich). UV analizom je utvrđeno da izolovana i standardna huminska kiselina imaju E 4 /E 6 odnos u odgovarajucem opsegu od 3–5, sto indicira prisustvo veceg broja alifatskih struktura. Na osnovu stepena humifikacije utvrđeno je da izolovane huminske kiseline pripadaju tipu B dok standardne huminske kiseline pripadaju tipu A. Kompleksacija huminskih kiselina je vrsena rastvorima razlicitih koncentracija nitratnih soli metala i pri razlicitim pH vrednostima. Kolicina slobodnog metala merena je metodom ICP-OES. Podaci su analizirani i ANOVA statistickom metodom. Rezultati su pokazali da se povecanjem pH vrednosti smanjuje koncentracija metalnog jona adsorbovanog na huminsku kiselinu dok se povecanjem koncentracije metala i kolicine huminske kiseline ta moc povecava. Istraživanjem je utvrđen sledeci niz vezivanja metala za huminsku kiselinu Pb>Zn>Ni>Cu.
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