On Linear Codes Over a Non-Chain Ring

In this paper, we study skew cyclic and quasi cyclic codes over the ring S = F2 +uF2 + vF2 where u2 = u, v2 = v, uv = vu = 0.We investigate the structural properties of them. Using a Gray map on S we obtain the MacWilliams identities for codes over S. The relationships between Symmetrized, Lee and Hamming weight enumerator are determined

Simultaneous ipsilateral proximal interphalangeal and metacarpophalangeal dislocation of the fifth phalanx: A case report

We propose, analyze and demonstrate the optoelectronic phase-locking of optical waves whose frequencies are chirped continuously and rapidly with time. The optical waves are derived from a common optoelectronic swept-frequency laser based on a semiconductor laser in a negative feedback loop, with a precisely linear frequency chirp of 400 GHz in 2 ms. In contrast to monochromatic waves, a differential delay between two linearly chirped optical waves results in a mutual frequency difference, and an acoustooptic frequency shifter is therefore used to phase-lock the two waves. We demonstrate and characterize homodyne and heterodyne optical phase-locked loops with rapidly chirped waves, and show the ability to precisely control the phase of the chirped optical waveform using a digital electronic oscillator. A loop bandwidth of ∼ 60 kHz, and a residual phase error variance of < 0.01 rad^2 between the chirped waves is obtained. Further, we demonstrate the simultaneous phase-locking of two optical paths to a common master waveform, and the ability to electronically control the resultant two-element optical phased array. The results of this work enable coherent power combining of high-power fiber amplifiers—where a rapidly chirping seed laser reduces stimulated Brillouin scattering—and electronic beam steering of chirped optical waves

Effect of the COVID-19 Pandemic on Radical Prostatectomy: A Turkish Multicenter Study

Objective: The present study examines the effects of the coronavirus disease 2019 pandemic on radical prostatectomy performed as part of localized prostate cancer treatment in Turkey. Material and methods: A retrospective analysis was made of the data of 176 patients from 8 centers in Turkey who underwent radical prostatectomy due to localized prostate cancer over the 2 years spanning March 1, 2019, to February 28, 2021. Within this timeframe, March 1, 2019, to February 28, 2020, was denoted the 1-year pre-coronavirus disease 2019 period, while March 1, 2020, to February 28, 2021, was denoted the 1-year coronavirus disease 2019 period. An analysis was made of whether there was a difference in the number of radical prostatectomies performed for prostate cancer, the time from biopsy to operation, and the biopsy and radical prostatectomy pathology between the 2 periods. Results: It was found that the number of radical prostatectomies performed for localized prostate cancer during the coronavirus disease 2019 pandemic was statistically and highly significantly fewer than in the pre-coronavirus disease 2019 period (P < .001). The patients diagnosed with Gleason 3 + 3 (low risk) prostate cancer were statistically significantly fewer in number in the coronavirus disease 2019 period (P < .001). The pathological Gleason score was upgrading than the biopsy Gleason score in all patients who underwent in both periods (P < .001). When the periods were compared, the pathological involvement determined by lymph node dissection performed during radical prostatectomy was found to be decreased in the coronavirus disease 2019 period, although the difference was not statistically significant (P = .051). Conclusion: As with many diseases, the diagnosis and treatment of prostate cancer have been adversely affected by the coronavirus disease 2019 pandemic. © 2022, AVES. All rights reserved

The geochemical and geochronological properties of postcollision a-type magmatism (Keban-Elazığ-Turkey)

In this study, the petrographic, geochemical and geochronological characteristics of Late Cretaceous-Middle Eocene Keban igneous rocks were examined in Keban-Elazığ-Turkey. Igneous rocks in the study area are represented by syenite porphyry and quartz monzonites. Petro-graphically, the main mineral paragenesis of rocks showing holocrystalline texture are K-feldspar (Mega-phenocrystalline) + plagioclase ± amphibole ± biotite ± quartz minerals. Secondary mineral phases are represented by calcite, sericite, chlorite and epidote minerals.Accessory mineral phases consist of sphene, apatite, zircon, garnet, pyrite, fluorite and opaque minerals. According to some analysis results, SiO2 (60.09 – 64.37 wt.%), Al2O3 (15.75 – 17.96 wt.%), Fe2O3 (1.18 – 5.30 wt.%), MgO (0.09 – 0.92 wt.%) CaO (2.07 – 4.27 wt.%), Na2O (0.80 – 4.93 wt.%) , K2O (4.69 – 13.42 wt.%), TiO2 (0.22 – 0.37 wt.%), P2O5 (0.05 – 0.26 wt.%), Na2O + K2O (8.22 – 14.22), Zr (200.9 – 665.4 ppm), Hf (4.6 – 18.4 ppm), Ta (1.5 – 2.7 ppm), Nb (24 – 56 ppm) ranges between values. The chondrite normalized rare earth element (REE) patterns display enrichment of light rare earth elements (LREE) compared to the heavy rare earth elements (HREE). The primitive mantle normalized trace element patterns indicate that the large ion lithophile elements (LILE) enriched compared to the high field strength elements (HFSE). According to LA-ICPMS zircon U-Pb crystallization ages ranges between 46.1 ± 0.5, 76.3 ± 0.3, 76.36 ± 0.34 and 77.4 ± 0.3 My. (Late Cretaceous-Middle Eocene). In the tectonic environment diagrams the studied rocks fall into the post-collisional fields (developing after collision). These rocks fall into the A-type granitoid areas and are of shoshonitic character. It falls into the post-collisional region (developed after collision) in the tectonic environment diagrams of the rocks studied. According to the field, petrography, geochemical and geochronological studies are evaluated together, Keban Magmatic rocks are thought to have the characteristics of post-collision developed magmatism

Investigation the effect of propranolol, metoprolol and carvedilol on spermatogenesis in rat testis

Background: Coronary arterial diseases are one of the increasing disease around the worldwide. Because of common using of the beta blockers, we aimed to investigate the effect of different beta-adrenergic receptor blockers on spermatogenesis in male rats.Methods: Adult male Sprague Dawley rats were obtained. Totally 32 rats homogenized according to their weight and divided into four groups that each one includes eight rats. Three of groups were determined as drug groups and remained groups were determined as a control group. Propranolol 40mg/kg, Metoprolol succinate 60mg/kg, Carvedilol 30mg/kg dosage was given by oral gavage within the saline solution, and the only saline solution was given to control group for 21 days, respectively. After 21 days rats were sacrificed, and testis were extracted. Then, histopathologic evaluation was performed.Results: There was statistical significance both right and left testis volume of experimental between control and carvedilol groups (p<0.05). There was statistical histopathological significance between control and carvedilol (p<0.05), control and propranolol (p<0.05), metoprolol succinate and propranolol (p<0.05), metoprolol succinate and carvedilol groups (p<0.05), respectively.Conclusions: Beta-adrenergic receptor blockers have adverse effects on spermatogenesis. Especially propranolol and carvedilol that were non-selective, effects spermatogenesis worse than selective beta blockers such as metoprolol succinate. Extensive use of these drugs may affect spermatogenesis in male, so male patients who have a complaint of infertility should be questioned regarding the use of beta blockers

In-vitro Activity of Fosfomycin, Nitrofurantoin and Ciprofloxacin Against Escherichia coli Strains Isolated From Community Acquired Urinary Tract Infections

Escherichia coli, üriner sistem inf eksiyonlarından (ÜSİ) en sık izole edilen mikroorganizmadır. Son zamanlarda ülke- mizde üropatojen E.coli suşlarında, ÜSİ tedavisinde sık kullanılan antibiyotiklere karşı duyarlılıkta azalma görülmektedir. Bu çalışmada, ÜSİ ön tanısıyla üroloji polikliniğinden gönderilen idrar kültürlerinden izole edilen E.coli suşlarının siprof loksa- sin, nitrof urantoin ve f osf omisin duyarlılıkları, Clinical and Laboratory Standards Institute (CLSI) önerileri doğrultusunda disk dif üzyon yöntemi ile belirlenmiş; genişlemiş spektrumlu beta-laktamaz (ESBL) üretimi çif t disk sinerji yöntemiyle araş- tırılmıştır. İncelenen E.coli izolatlarında en yüksek direnç oranı % 32.1 ile siprof loksasine karşı saptanmış, bunu % 5.1 ile nitrof urantoin ve % 4.5 ile f osf omisin takip etmiştir. ESBL pozitif lik oranı % 22.5 olarak tespit edilmiştir. Direnç oranları ESBL pozitif ve negatif lerde sırasıyla siprof loksasine karşı % 85.3 ve % 17.3 nitrof urantoine karşı % 12.6 ve % 2.9, f osf omi- sine karşı ise % 13.9 ve % 1.9 olarak saptanmıştır. Bölgemizde siprof loksasine direnç oranında yükselme gözlenmesine karşın f osf omisin ve nitrof urantoin, ÜSİ tedavisinde iyi birer alternatif olmayı sürdürmektedir.Escherichia coli is the most commonly isolated microorganism in cases of urinary tract inf ection (UTI). Currently, in our country, susceptibility of uropathogenic E.coli strains to commonly used antibiotics in the treatment of UTIs has decrea- sed. In this study, the resistance rates of E.coli strains isolated f rom urine samples of patients with UTI f rom urology outpa- tient clinic were determined f or ciprof loxacin, nitrof urantoin and f osf omycin by disk diff usion method according to Clinical and Laboratory Standards Institute (CLSI) guidelines and extended-spectrum beta-lactamase (ESBL) production was tested by double-disk synergy method. In E.coli strains the highest resistance rate was f ound f or ciprof loxacin (32.1 %). This was f ollowed by nitrof urantoin (5.1 %) and f osf omycin (4.5 %). ESBL positivity rate was f ound as 22.5 %. Resistance rates f or ESBL positive and negative cultures were determined as, 85.3 % and 17.3 % f or ciprof loxacin, 12.6 % and 2.9% f or nitrof u- rantoin, 13.9 % and 1.9 % f or f osf omycin. Despite the increased resistance observed f or ciprof loxacin in our region, f osf omycin and nitrof urantoin continue to be a good alternative in the treatment of UTIs