192 research outputs found

    INVESTIGATING THE MARKET ORIENTATION IN SMALL AND MEDIUM-SIZED ENTERPRISES IN EAST AZERBAIJAN PROVINCE SCIENCE AND TECHNOLOGY PARK, IRAN

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    The current research was conducted to investigate market orientation in small and medium-sized enterprises in East Azerbaijan Province Science and Technology Park. Given the main objective and secondary objectives, main question, and secondary questions, main hypothesis, and sub-hypotheses and the target population, market orientation model of Kohli and Jaworski, developed based on three key variables of information generation, information distribution, and responsiveness to market information, was selected to measure market orientation in enterprises established in Science and Technology Park. Kohli and Jaworski have defined market orientation as generation of information in organization with regard to current and future needs of the customer, distribution of this information among different departments of the organization, and global responsiveness to that information. By 1396, 147 small and medium-sized enterprises were operating under the East Azerbaijan Province Science and Technology Park. In each enterprise, data were collected through the management of the factor or one of the levels of management, using the questionnaire. The questionnaire was developed based on the 5-point Likert scale (1=very 2=low 3=moderate 4=high 5= very high), which 27 questions assessed the three main variables of market orientation: information generation, information distribution, and responsiveness. The research results found by using two methods (sign test and Wilcoxon test) on the main hypothesis and sub-hypotheses indicated that market orientation and its three main variables, including information generation, information distribution, and responsiveness in small and medium-sized enterprises in East Azerbaijan Province Science and Technology Park was high and acceptable. Finally, recommendations were provided for science and technology parks, growth centers, and enterprises established in Science and Technology Park.  Article visualizations

    Transcutaneous Skin-Muscle Flap Suspension Lower-Eyelid Blepharoplasty

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    The transcutaneous lower-eyelid blepharoplasty is a commonly performed surgical technique and an important tool in the armamentarium of facial plastic surgeons. The facets of lower-eyelid blepharoplasty begin with proper patient selection and rely on several technical subtleties that are crucial to achieve an excellent cosmetic and functional result while avoiding potential complications. The senior author (S.W.P) has been using the transcutaneous approach with orbicularis oculi muscle suspension for 30 years to address redundant or excessive skin and muscle while gaining wide exposure to treat pseudoherniation of the orbital fat compartments

    Determination of lifetimes, optical excitation functions transmitted election spectra, optical spectra and quenching cross sections /

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    An apparatus has been set up which allows the measurement of transmitted electron spectrum, radiative decay lifetimes and optical excitation functions of any gas molecules (atoms) in the region of visible and vacuum ultraviolet. For lifetime measurement a delayed coincidence photon counting technique has been used.The optical excitation functions for these vibrational levels have also been measured. Multiple thresholds have been observed which appear to be due to overlapped vibrational levels of the d('3)(DELTA) and e('3)(SIGMA)('-) states. The thresholds obtained from emission functions agree with spectroscopically determined thresholds.Optical spectra of CO were measured in the region of interest at many different electron energies to determine the extent of possible spectra overlap and to aid in the indentification of week band.The optical emission function for Vacuum Ultra-Violet photons of H(, 2) has been measured. A MgF(, 2) window which allows the passage of VUV photon has been used. Several new series has been observed. The lifetime of VUV photons at three different energies has also been measured.The radiative decay lifetimes for the a'('3)(SIGMA)('+)((nu) = 9,12-16) states of CO have been measured. The lifetimes, extrapolated to zero pressure for the (nu) = 12-16 vibrational levels have been found to be in the range of 4-5 (mu)sec and these results are consistent with a (nu)('3) extrapolation of previous lifetime measurements of the lower vibrational levels. The collisional quenching cross sections were calculated from the pressure dependence of the measured lifetimes.Transmitted electron current spectrum for He and N(, 2) have been measured without modulating the electron gun and without using a phase sensitive detector. With this technique an instrumental resolution of 30 meV FWHM has been obtained

    Effect of Chelation Therapy on Lead-induced Hepatotoxicity: A Case Series

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    Background: Opium use is one of the common causes of lead toxicity. Lead poisoning can lead to hepatic, hematologic, musculoskeletal, neurological, and cardiovascular damages. In this study, we investigated the reversibility of lead-induced liver damage following chelation therapy.Methods: We reviewed the medical records of patients with opium-induced lead poisoning regarding elevation in hepatobiliary enzymes level including Alanine Transaminase (ALT), Aspartate Transaminase (AST), and Alkaline Phosphatase (ALP) to normal level and recorded patients’ age, treatment regimen, liver enzymes level before and after treatment; we also investigated other laboratory findings to rule out other causes of liver enzymes increase.Results: We evaluated 10 male patients with the mean age of 48.3±7.42 years. All patients were referred with the chief complain of abdominal cramps (100%). The mean lead level in patients was 84.48±9.95 µg/dL. The mean serum levels of ALT, AST, and ALP significantly decreased after the treatment with chelating agents ([ALT=117.8±60.22µg/dL-76.9±40.73µg/dL, P=0.022], [AST=100.9±63.96µg/dL-69.9±37.41µg/dL, P=0.028], [ALP=449.8±234.81 µg/dL-338.3±131.22µg/dL, P=0.037]). There was no significant correlation between patients’ lead level and liver enzymes level before and after the treatment.Conclusion: The results of this study showed that the treatment with chelating agents reverses the liver injury following the lead intoxication

    Memory effects in high-dimensional systems faithfully identified by Hilbert-Schmidt speed-based witness

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    A witness of non-Markovianity based on the Hilbert-Schmidt speed (HSS), a special type of quantum statistical speed, has been recently introduced for low-dimensional quantum systems. Such a non-Markovianity witness is particularly useful, being easily computable since no diagonalization of the system density matrix is required. We investigate the sensitivity of this HSS-based witness to detect non-Markovianity in various high-dimensional and multipartite open quantum systems. We find that the time behaviors of the HSS-based witness are always in agreement with those of quantum negativity or quantum correlation measure. These results show that the HSS-based witness is a faithful identifier of the memory effects appearing in the quantum evolution of a high-dimensional system

    Application of an eco-friendly green additive for drilling fluids

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    Enhancing nonclassical bosonic correlations in a quantum walk network through experimental control of disorder

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    The presence of disorder and inhomogeneities in quantum networks has often been unexpectedly beneficial for both quantum and classical resources. Here we experimentally realize a controllable inhomogenous quantum walk (QW) dynamics, which can be exploited to investigate the effect of coherent disorder on the quantum correlations between two indistinguishable photons. Through the imposition of suitable disorder configurations, we observe two-photon states that exhibit an enhancement in the quantum correlations between two selected modes of the network, compared to the case of an ordered QW. Different configurations of disorder can steer the system toward different realizations of such an enhancement, thus allowing spatial and temporal manipulation of quantum correlations between remote modes of QW networks

    Safety and Efficacy of Expanded Polytetrafluoroethylene Implants in the Surgical Management of Traumatic Nasal Deformity

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    IMPORTANCE: The ideal alloplastic implant for correction of traumatic nasal deformity has not been adequately examined. OBJECTIVE: To evaluate the safety profile and postoperative results of expanded polytetrafluoroethylene (ePTFE) implants used in functional nasal surgery (FNS) in the setting of traumatic nasal deformity. DESIGN, SETTING, AND PARTICIPANTS: We conducted a 13-year retrospective medical chart review for patients treated at a tertiary academic facial plastic and reconstructive surgery practice between July 1999 and July 2012. A total of 404 FNS procedures were performed by a single surgeon during this period, 255 to repair traumatic deformities, 35 of these involving ePTFE implants. Patient demographics, medical comorbidities, operative and technical considerations, functional and aesthetic results, complications, and postoperative course findings were collected from patient records. In addition, preoperative and postoperative photographic documents were examined. EXPOSURES: Functional nasal surgery. MAIN OUTCOMES AND MEASURES: Postoperative complications or presentations necessitating revision. RESULTS: A total of 404 patients (197 male, 207 female) underwent FNS. Of those, 255 procedures were to treat traumatic deformities. Forty patients altogether required the use of an ePTFE implant, 35 of those 40 deformities being associated with a traumatic injury. One of the 35 patients in the ePTFE-repaired traumatic deformities group experienced postoperative infection. This patient ultimately developed exposure after the infection failed to resolve with oral antibiotics, and the implant was removed. An additional patient in the ePTFE group required revision of the implant owing to contour irregularity and aesthetic concerns. No infections or other complications occurred among the 220 patients with traumatic deformity treated with autologous grafts. Analysis of other variables including sex, tobacco use, diabetes, immunosuppression, implant thickness, suture material, and prior septorhinoplasty were not associated with increased rate of infection (P > .05 for all). CONCLUSIONS AND RELEVANCE: In the setting of traumatic nasal deformities requiring FNS, ePTFE implants can be used at the level of the nasal dorsum, where soft tissue coverage is often adequate, with a low risk of complications
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