An investigation on relationship between CRM and organizational learning through knowledge management: A case study of Tehran travel agency

Customer relationship management (CRM) plays essential role on the success of many business units. CRM integrates necessary data from internal and external sources to assist managers and employees for business development. This paper attempts to analyze relationship between CRM, organizational learning, and knowledge management. Research population includes travel agencies in Tehran, Iran and their manager are considered for the purpose of this study. This research has four variables 1- Successful implementation of KM, 2- Organizational learning, 3- customer orientation, and 4- information share with customers. The preliminary results of this survey indicate that any development of CRM will significantly contribute relative efficiency of this travel agency. The results also indicate that there is a meaningful relationship among components of CRM including organizational learning, and knowledge management in this travel agency

Phenanthroimidazole as molecularly engineered switch for efficient and highly long-lived light-emitting electrochemical cell

Light-emitting electrochemical cells (LECs) based on Ir(III) complexes owing to the superior advantages exhibit high potential for display and lighting applications. Herein, a series of Ir(III) complexes based on phenanthroimidazole (PI) as an ancillary ligand were synthesized to achieve efficient and highly stable yellow-to-orange LEC devices with fast response. These complexes exhibit appropriate electrochemical stability and significant suppression of concentration quenching in the thin films compared to the archetype complex. The fabricated LECs showed remarkably long device lifetimes over 1400 and 2100 h and external quantum efficiency of 2 and 3% for yellow and orange-LECs, respectively. The obtained t1/2 for yellow LEC is much higher than archetype [Ir(ppy)2(phen)]+ and their phenanthroline-based analogues reported so far. The incorporation of an ionic tethered functional group on PI, improved the mobility of the emissive layer and reduced the device turn-on time by 75–88%. This study shows a facile functionalization and characterization of the PI ligand as well as its potential application in optoelectronic devices (OLED

Analyzing e-service quality in service-based website by E-SERVQUAL

Over the past two decades, two-way communication via web-based exchanges has been a popular method for different activities such as electronic transaction, publication, broadcasting, and other service applications. However, it is always necessary to measure the performance quality of web services using different technique such as e-SERVQUAL model. The proposed study of this paper uses this technique for measuring the quality of Iranian university e-services. The proposed study distributes a standard questionnaire among students who use this service through internet. The results indicate that only efficiency and online service quality in the e-service system are desirable. Managerial implications are represented

Frequency and the Factors Associated with Increasing troponin in Patients Admitted to the Intensive Care Unit of Alzahra Hospital, Isfahan, Iran, during the Years 2018-2019

Background: Some studies have shown that serum levels of troponin increase in some other diseases in addition to heart diseases. The aim of this study was to determine the frequency and factors associated with increasing troponin in patients admitted to the intensive care unit. Methods: In this cross-sectional study, 62 patients admitted to intensive care units (ICU) of Alzahra hospital, Isfahan, Iran, during the Years 2018-2019, were selected. Patients’ serum troponin levels were measured, and based on the outcomes including cardiac, pulmonary, systemic, and renal complications, frequency of mortality, duration of hospitalization in ICU, and duration of intubation were analyzed. Findings: The mean serum level of troponin I was 47.12 ± 4.38 and 50.00 ± 2.59 ng/l in the living and dead patients, respectively (P = 0.033). The mean serum level of troponin T was 0.57 ± 0.05 and 1.07 ± 0.08 ng/l in the living and dead patients, respectively (P < 0.001). Moreover, troponin I level was significantly different based on the age groups, and serum level of troponin T was different based on the causes of admission in ICU. Conclusion: Our study shows that in addition to patients with myocardial infarction (MI), other patients such as the elderly who hospitalized in the ICUs and patients with intracerebral hemorrhage, may also be at increased troponin levels

Association of selected polymorphisms in GPX4, COMT, pre-miR-125a, pre-miR-10a, and pre-miR-323b genes in Iranian women with idiopathic recurrent pregnancy loss: A casecontrol study

Background: Recurrent pregnancy loss (RPL) is a major concern among women worldwide. However, the exact mechanisms underlying miscarriage are not well understood. Recent evidence suggests that single nucleotide polymorphisms in various genes, especially miRNAs, may be responsible for RPL. Objective: We surveyed the association between polymorphisms in pre-miR-125a, premiR- 10a, pre-miR-323b, GPX4, and GPX4 in Iranian women with idiopathic RPL. Materials and Methods: DNA was extracted from blood samples of 116 women with idiopathic RPL and 89 healthy women as controls who had previously had at least two successful pregnancies. Polymerase chain reaction was used for the amplification of the genes. Genotype screening along with SNaPshot were performed to detect different polymorphisms. Finally, the polymorphisms and frequency of each genotype were compared between the two groups. Results: The frequencies of polymorphisms in pre-miR-125a (p &lt; 0.001) and pre-miR-10a (p = 0.04) were calculated among the case and control groups, which showed a statistical difference (p &lt; 0.05), indicating an association between these polymorphisms and the symptoms of RPL. The frequencies of polymorphisms of genotypes in GPX4, COMT and pre-miR-323b did not demonstrate any difference between the two groups. Also, the amount of alleles in pre-miR-125a and pre-miR-10a were significantly different (p &lt; 0.001 and p = 0.02, respectively) and the dominant inheritance model was proposed. Conclusion: In conclusion, pre-miR-125a and pre-miR-10a can be associated with RPL in women. The SNaPshot technique is a valuable tool to evaluate possible associations between polymorphisms and health conditions. Key words: SNaPshot, Single-nucleotide polymorphisms, Recurrent pregnancy loss, Genotypes

Optical-thermal simulation of tonsillar tissue irradiation

Background and Objective: Despite laser applications targetted toward tonsillar tissue, there has been no characterization of underlying optical and thermal events during laser irradiation of tonsillar tissue. Study Design/Materials and Methods: The optical properties of canine and human tonsils were determined at 805 nm (diode laser) and 1,064 nm (Nd:YAG laser). An optical-thermal simulation was developed to predict the temperature rise in irradiated human tonsils. Results: The optical properties of human and canine tonsillar tissue are similar at both wavelengths. The optical-thermal simulation was validated and predicts that at 10 W and 1 minute of irradiation, the heat will be contained within the human tonsil. The diode laser causes more superficial heating than the Nd:YAG laser. Conclusions: The safety of irradiating human tonsils was shown. The diode laser is superior to the Nd:YAG laser because less heat affects collateral structures. The optical-thermal simulation detailed in this study can be used to predict the temperature rise in tissues undergoing irradiation

Hypolipidemic Activity of a Natural Mineral Water Rich in Calcium, Magnesium, and Bicarbonate in Hyperlipidemic Adults

Purpose: This study compared the effects of a mineral water rich in calcium, magnesium, bicarbonate, and sulfate and a marketed mineral water with a composition similar to that of urban water on the lipid profile of dyslipidemic adults. Methods: In a randomized controlled trial, 32 adults received one liter of "rich mineral water" daily for one month, and 37 adults drank the same amount of normal mineral water for the same period. Changes in lipid profiles were compared separately in each studied group at the end of one month. Results: Results showed that mean cholesterol and low density lipoprotein LDL levels were significantly decreased in both studied groups after one month of drinking mineral water (P0.05). Conclusion: A one-month intake of mineral water rich in calcium, magnesium bicarbonate, and sulfate decreased cholesterol and LDL levels but not TG or HDL levels in dyslipidemic adults

Low-voltage, high-brightness and deep-red light-emitting electrochemical cells (LECs) based on new ruthenium(II) phenanthroimidazole complexes

Light-Emitting Electrochemical Cells (LECs) with a simple device structure ITO/Ru complex/Ga: In were prepared by using heteroleptic ruthenium(II) complexes containing 2-(2-hydroxyphenyl)-1(4-bromophenyl)-1h-imidazo[4,5-f][1,10] phenanthroline (hpbpip) as the pi-extended ligand. After ancillary ligand modification, the [Ru(hpbpip)(dmbpy)(2)](ClO4)(2) complex shows a deep red electro-luminescence emission (2250 cd m(-2) at 6 V) centered at 685 nm, 65 nm red-shifted compared to the [Ru(bpy)(3)](ClO4)(2) benchmark red-emitter at a very low turn voltage (2.6 V), demonstrating its potential for low-cost deep-red light sources. Moreover, the PL quantum yield of the [Ru(hpbpip)(bpy)(2)](ClO4)(2) complex was revealed to be higher (0.121) than the benchmark standard [Ru(bpy)(3)](2+) (0.095)