728 research outputs found

    Effectiveness of Solution-Focused Brief Therapy (SFBT) on Reducing Symptoms of Depression in Women

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    زمینه و هدف: درمان کوتاه مدت راه حل محور یکی از انواع درمان‌های متداول در کاهش مشکلات روانشناختی از جمله افسردگی در بین درمانگران و مشاوران خانواده است. پژوهش حاضر با هدف بررسی اثر بخشی درمان کوتاه مدت راه حل محور بر کاهش نشانگان افسردگی زنان طراحی شد. روش بررسی: پژوهش حاضر از نوع نیمه تجربی و از روش پیش آزمون- پس آزمون و پیگیری با گروه کنترل بهره گرفته شده است. جامعه این پژوهش شامل کلیه زنانی بودند که با مشکل افسردگی به مرکز همیاران سلامت روان شهر بجنورد تحت نظارت سازمان بهزیستی خراسان شمالی در سال 1392 مراجعه نموده اند و بر اساس مصاحبه بالینی و تشخیصی، افسردگی در مورد آنها تشخیص داده شده بود. با استفاده از نمونه گیری در دسترس، 20 نفر از زنان بعنوان نمونه انتخاب شدند و با گمارش تصادفی در دو گروه آزمایش و کنترل قرار گرفتند. ابزار پژوهش پرسشنامه افسردگی بک (Beck) بود که توسط آزمودنی‌ها در مراحل پیش آزمون، پس آزمون و پیگیری تکمیل گردید. درمان کوتاه مدت راه حل محور در 6 جلسه 5/1 ساعته برای آزمودنی‌های گروه آزمایش برگزار شد اما برای گروه کنترل مداخله‌ای ارایه نگردید. داده‌ها با بهره‌گیری از نرم افزار SPSS و به روش تحلیل کوواریانس تک متغیره مورد تجزیه و تحلیل قرارگرفتند. یافته‌ها: نتایج کاهش معنادار نمرات افسردگی زنان گروه آزمایش را در مراحل پس آزمون و پیگیری نسبت به گروه کنترل نشان داد. یافته ها حاکی از آن بود که درمان کوتاه مدت راه حل محور باعث کاهش علایم افسردگی زنان گروه مداخله شده و نتایج در دوره پیگیری نیز از ثبات لازم برخوردار بوده است (001/0 >P). نتیجه گیری: درمان کوتاه مدت راه حل محور بر کاهش افسردگی موثر است. مشاوران و روان درمانگران می‌توانند از این رویکرد درمانی موثر و کارآمد جهت حل مشکلات روانشناختی مراجعان بهره ببرند

    Data anonymization using pseudonym system to preserve data privacy

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    Data collection and storage in a large size is done on a routine basis in any company or organization. To this end, wireless network infrastructure and cloud computing are two widely-used tools. With the use of such services, less time is needed to attain the required output, and also managing the jobs will be simpler for users. General services employ a unique identifier for the aim of storing data in a digital database. However, it may be associated with some limitations and challenges. There is a link between the unique identifier and the data holder, e.g., name, address, Identity card number, etc. Attackers can manipulate a unique identifier for stealing the whole data. To get the data needed, attackers may even eavesdrop or guess. It results in lack of data privacy protection. As a result, it is necessary to take into consideration the data privacy issues in any data digital data storage. With the use of current services, there is a high possibility of exposure and leak of data/information to an unauthorized party during their transfer process. In addition, attacks may take place against services; for instance spoofing attacks, forgery attacks, etc. in the course of information transaction. To address such risks, this paper suggests the use of a biometric authentication method by means of a palm vein during the authentication process. Furthermore, a pseudonym creation technique is adopted to make the database record anonymous, which can make sure the data is properly protected. This way, any unauthorized party cannot gain access to data/information. The proposed system can resolve the information leaked, the user true identity is never revealed to others

    Optical isolation via PT-symmetric nonlinear Fano resonances

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    We show that Fano resonances created by twoPT -symmetric nonlinear micro-resonators coupled to a waveguide, have line-shape and resonance position that depends on the direction of the incident light. We utilize these features in order to induce asymmetric transport, up to 47 dBs, in the optical C-window. Our theoretical proposal requires low input power and does not compromise the power or frequency characteristics of the output signal

    Cellular immune response of infectious bursal disease and Newcastle disease vaccinations in broilers exposed to monochromatic lights

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    To investigate the effects of various monochromatic lights on T lymphocytes proliferation and serum nitric oxide production in chicken vaccinated with infectious bursal disease and newcastle disease vaccines, a total of 60 one-day-old broilers were exposed to red, green, blue, white and yellow light by using a light-emitting diode system for 6 weeks. The results indicated that the proliferation of peripheral blood T lymphocytes in the chickens exposed to white and green lights significantly increased when compared with other groups at 37 days of age (P < 0.05). In the early days, the results were different. The enhancement of T lymphocytes proliferation with green and yellow lights occurred at 18 days, whereas the enhancement with green light was less than other lights at 30 days. Red light promoted NO (nitrix oxide) production at maximum level in the chickens, while green light suppressed it at minimum level after 37 days. These results suggested that green and white lights had strong effects on immunity, especially at the last days of rearing.Key words: Monochromatic lights, vaccination, nitric oxide, broiler chicken

    Percutaneous balloon pulmonary valvuloplasty of critical pulmonary stenosis and severe pulmonary stenosis in neonates and early infancy: A challenge in the cyanotic

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    Introduction: Pulmonary stenosis with an intact ventricular septum (PS-IVS) is one of the common causes of cyanotic heart disease in neonates with diverse morphologies as well as management and treatment protocols. The aim of this study was to evaluate short and midterm results of balloon pulmonary valvuloplasty (BPV) for this disorder. Methods: Between 2012 and 2016, Totally 45 neonates and infants under 6 months old were evaluated. The patients had a minimum right-to-left ventricular pressure ratio of 1, right-to-left shunting at the patent foramen ovale or atrial septal defect level, and tricuspid valve Z-scores higher than -4. Results: Immediately after the procedure, the right ventricular pressure dropped to the normal values in 8 (20) patients. The immediate procedural success rate was seen in 42 (93.3) cases: the right-to-left ventricular pressure ratio dropped to below 50 or the level of O2 saturation rose above 75. Of three cases unresponsive to BPV, two of them underwent patent ductus arteriosus (PDA) stenting and one procedural death occurred. At 6 months' follow-up, of 42 patients, this pressure was still within the normal range in 36 (80) infants, while it had returned to high values in 9 (20) patients and necessitated repeat valvuloplasty. After BPV, severe pulmonary valve regurgitation was observed in 14.2 patients; the condition was more common when high-profile noncompliant balloons were used. Conclusion: Balloon pulmonary valvuloplasty in infants with PS-IVS confers acceptable results insofar as it improves echocardiographic parameters and hemodynamic changes at short- and midterm follow-ups. Balloon selection with sizes more than 1.2 of the diameter of the pulmonary valve annulus and the use of noncompliant high-pressure balloons results in higher degrees of pulmonary regurgitation. © 2021 The Author(s)

    COVID-19 Population Survey of Iran (COPSIR) study protocol: Repeated survey on knowledge, risk perception, preventive behaviors, psychological problems, essential needs, and public trust during COVID-19 epidemic

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    Background: The worldwide emergence and rapid expansion of COVID-19 emphasizes the need to assess the knowledge gap and to predict the disease-related behaviors and reactions during this epidemic. Methods and design: COVID19 Population Survey of Iran (COPSIR) is a repeated cross sectional survey that will be conducted in 8 waves. In each wave, 515 Iranian adults aged 18 years or older will be randomly selected and interviewed by phone. The study waves will be performed at approximately weekly intervals. The survey tool is adapted from COSMO (COVID-19 Snapshot MOnitoring) study. This study will provide information on trends of knowledge, risk perception, preventive behaviors, psychological problems, essential needs, and public trust among Iranian adults during COVID-19 epidemic. Discussion: The key findings of each wave will be immediately reported to the National Headquarters for Coronavirus Control to set better policies for disease control and prevention. Moreover, if a message is extracted from the results of this study that needs to be communicated to the public, it will be done through the mass media. © Iran University of Medical Sciences

    Complex organic molecules in low-mass protostars on Solar System scales -- II. Nitrogen-bearing species

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    The chemical inventory of planets is determined by the physical and chemical processes that govern the early phases of star formation. The aim is to investigate N-bearing complex organic molecules towards two Class 0 protostars (B1-c and S68N) at millimetre wavelengths with ALMA. Next, the results of the detected N-bearing species are compared with those of O-bearing species for the same and other sources. ALMA observations in Band 6 (\sim 1 mm) and Band 5 (\sim 2 mm) are studied at \sim 0.5" resolution, complemented by Band 3 (\sim 3 mm) data in a \sim 2.5" beam. NH2CHO, C2H5CN, HNCO, HN13CO, DNCO, CH3CN, CH2DCN, and CHD2CN are identified towards the investigated sources. Their abundances relative to CH3OH and HNCO are similar for the two sources, with column densities that are typically an order of magnitude lower than those of O-bearing species. The largest variations, of an order of magnitude, are seen for NH2CHO abundance ratios with respect to HNCO and CH3OH and do not correlate with the protostellar luminosity. In addition, within uncertainties, the N-bearing species have similar excitation temperatures to those of O-bearing species (\sim 100 \sim 300 K). The similarity of most abundances with respect to HNCO, including those of CH2DCN and CHD2CN, hints at a shared chemical history, especially the high D/H ratio in cold regions prior to star formation. However, some of the variations in abundances may reflect the sensitivity of the chemistry to local conditions such as temperature (e.g. NH2CHO), while others may arise from differences in the emitting areas of the molecules linked to their different binding energies in the ice. The two sources discussed here add to the small number of sources with such a detailed chemical analysis on Solar System scales. Future JWST data will allow a direct comparison between the ice and gas abundances of N-bearing species.Comment: Accepted to A&A, 41 pages, 37 figure

    Generalized Chaplygin gas model: Cosmological consequences and statefinder diagnosis

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    The generalized Chaplygin gas (GCG) model in spatially flat universe is investigated. The cosmological consequences led by GCG model including the evolution of EoS parameter, deceleration parameter and dimensionless Hubble parameter are calculated. We show that the GCG model behaves as a general quintessence model. The GCG model can also represent the pressureless CDM model at the early time and cosmological constant model at the late time. The dependency of transition from decelerated expansion to accelerated expansion on the parameters of model is investigated. The statefinder parameters rr and ss in this model are derived and the evolutionary trajectories in srs-r plane are plotted. Finally, based on current observational data, we plot the evolutionary trajectories in srs-r and qrq-r planes for best fit values of the parameters of GCG model. It has been shown that although, there are similarities between GCG model and other forms of chaplygin gas in statefinder plane, but the distance of this model from the Λ\LambdaCDM fixed point in srs-r diagram is shorter compare with standard chaplygin gas model.Comment: 10 pages, 5 figures, accepted in Astrophys Space Sci. (2011
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