Biostratigraphy of the Danian/Selandian transition: A case study from Kamestan anticline section, northwest of Izeh city in Khuzestan province, Southern Iran

The planktonic foraminifera turnover across the Danian-Selandian boundary (early to late Paleocene, ~60 Ma) has been studied in the Kamestan anticline section. The studied interval span planktonic foraminifera zones P2-P3. In this section Danian-Selandian boundary is located in Pabedeh – Gurpi Formations transition. Here, the boundary of Pabeh and Gurpi Formations is a transitional one and identified by with color change of from grey shale to purple shale of Gurpi Formation to Pabdeh Formation .

&#xa

The effect of cushion of air on vibration transmitted to vehicle drivers based on standard

زمینه و هدف: ارتعاش تمام بدن (WBV) از دلایل اصلی اختلالات اسکلتی عضلانی رانندگان است. یک روش برای کاهش ارتعاش استفاده از وسیله عایق می باشد. در این تحقیق، جهت کاهش میزان ارتعاش از یک تشکچه هوا استفاده شده و با اندازه گیری ارتعاش منتقله به رانندگان قبل و بعد از استفاده از تشکچه، اثربخشی آن در کنترل ارتعاش مورد بررسی قرار گرفت. روش بررسی: این مطالعه، مداخله ای و بر روی 95 نفر از رانندگان شرکت واحد اتوبوسرانی انجام شد. پارامترهای ارتعاش در سه محور ورود ارتعاش به بدن، در دو مرحله قبل و بعد از قرار دادن تشکچه بر روی صندلی راننده توسط دستگاه ارتعاش سنج اندازه گیری و با استفاده از آزمون آماری t زوجی مقایسه شدند. یافته ها: مقایسه مقادیر ارتعاش قبل و بعد از استفاده تشکچه نشان داد که ماکزیمم فشار (Pmax) در محورهای X،Y به ترتیب(m/s2) 2921/0 و (m/s2) 3081/0 کاهش (05/0

Usefulness of the SF-36 Health Survey questionnaire in screening for health-related quality of life among parents of children with cancer: Latent profile analysis

Background: Poor health-related quality of life (HRQOL) of parents of children with cancer as their main caregivers can adversely affect child’s HRQOL. Short Form-36 Health Survey (SF-36) is a widely used instrument to measure HRQOL. However, there are no clearly defined cut-off points for screening for parents with poor HRQOL. This study aimed to find appropriate cut-off points for the SF-36 questionnaire in a sample of parents of children with cancer using latent profile analysis to add another possibility to use it. Methods: In this cross-sectional study, 110 couples (110 mothers and 110 fathers) of children diagnosed with cancer selected by simple random sampling method from the patients' files were included. The study was conducted at two settings, pediatric hematology ward and pediatric hematology clinic of a university hospital in 2016-2017. Latent Profile analysis method was used to determine appropriate cut-off points for the SF-36 questionnaire. Data was analyzed by Mplus and R3.3.0 software. Results:  Based on the results, scores ≤44, 45-63 and ≥64 for mental health, and scores ≤43, 44-59 and ≥60 for physical health classes indicate weak, medium, and good, respectively. These cut-off points showed acceptable accuracy in classification of individuals. For the total quality of life, correct classification rates were 88%, 65% and 53% for each class respectively. For mental health (physical health), they were 79 (63), 50 (62) and 52 (63) for each class respectively.    Conclusion: The cut-off points for the classes identified here can be useful in screening parents of children with cancer in clinical setting to provide clinical interventions to protect vulnerable parents from negative outcomes

Molecular Methods for Identification of Acinetobacter Species by Partial Sequencing of the rpoB and 16S rRNA Genes.

BACKGROUND Acinetobacter spp. is a diverse group of Gram-negative bacteria which are ubiquitous in soil and water, and an important cause of nosocomial infections. The purpose of this study was to identify a collection of Acinetobacter spp. clinical isolates accurately and to investigate their antibiotic susceptibility patterns. MATERIALS AND METHODS A total of 197 non-duplicate clinical isolates of Acinetobacter spp. isolates identified using conventional biochemical tests. The molecular technique of PCR-RFLP and sequence analysis of rpoB and 16S rRNA genes was applied for species identification. Antimicrobial susceptibility test was performed with a disk diffusion assay. RESULTS Based on 16S rRNA and rpoB genes analysis separately, most of clinical isolates can be identified with high bootstrap values. However, the identity of the isolate 555T was uncertain due to high similarity of A. grimontii and A. junii. Identification by concatenation of 16S rRNA and rpoB confirmed the identity of clinical isolates of Acenitobacer to species level confidently. Accordingly, the isolate 555T assigned as A. grimontii due to 100% similarity to A. grimontii. Moreover, this isolate showed 98.64% to A. junii. Besides, the identity of the isolates 218T and 364T was confirmed as Genomic species 3 and A. calcoaceticus respectively. So, the majority of Acinetobacter spp. isolates, were identified as: A. baumannii (131 isolates, 66%), A. calcoaceticus (9 isolates, 4.5%), and A. genomosp 16 (8 isolates, 4%). The rest of identified species showed the lower frequencies. In susceptibility test, 105 isolates (53%), presented high antibiotic resistance of 90% to ceftriaxone, piperacillin, piperacillin tazobactam, amikacin, and 81% to ciprofloxacin. CONCLUSION Sequence analysis of the 16S rRNA and rpoB spacer simultaneously was able to do identification of Acinetobacter spp. to species level. A.baumannii was identified as the most prevalent species with high antibiotic resistance. Other species showed lower frequencies ranged from 4 to 9 strains

The comparison of neuropsychological performance in the girl students with social anxiety disorder and normal students

Background and aims: The Neuropsychological performance in patients with anxiety disorders has received much less attention. The present study set out to compare one of the executive performances that means shifting function in two groups of social anxious and normal. Also, The aim of the present study was to investigate performance in this function both of processing efficacy and performance effectiveness. Methods: In this causal-comparative study, recruited 24 patients with social anxiety disorder and 24 non patients in multi-stage cluster sampling method and were implemented tests of Connor Social Anxiety Scale, Self-reported mental effort scale, and Wisconsin Card Sorting Test, The results were analyzed with SPSS software and MANOVA test. Results: The results showed significant differences between the two groups in both components of performance in the shifting function namely processing efficacy (P<0.001) and performance effectiveness (P<0.001), So that socially anxious group showed poorer performance. Conclusion: The group of social anxious in compare with normal group showed deficient in the shifting function of working memory. The deficiency observed were related to cognitive models of anxiety disorders specially Attentional Control Theory

Spiritual Challenges Experienced by Nurses in Neonatal End of Life: A Qualitative Study

Background The literature reviews show that taking care of dying newborns for a nurse is associated with stress and anxiety, and nurses will be faced with many challenges, the present study aimed to explain the spiritual challenges experienced by nurses in neonatal end of life in the NICU. Materials and Methods The present study was conducted with a qualitative method ­and "purposive" sampling. The study environment was­ NICU in the hospitals of Zahedan, Iran. Semi-structured interviews­ used for interview and data collection. A number of 24 participants with inclusion criteria were interviewed. Qualitative content analysis method was used with the conventional approach and inductive method with Graneheim and Lundman approach. Results Data analysis explored were categorized in three main themes: spiritual challenge of neonatal care with two-categories (palliative care, and care with love and affection); psychological / spiritual support challenges of family with two categories (spiritual support of family, psychological support of family), and nurses' spiritual distress with one category (nurse's trauma in neonatal care). Conclusion In this study three themes were obtained: 1- Spiritual challenge of neonatal care with two-categories (palliative care, and care with love and affection); 2- Psychological / spiritual support challenges of family with two categories (spiritual support of family, psychological support of family), and 3- The nurses' spiritual distress with one category (nurse's trauma in neonatal care)

Awareness Level of Operating Room Nurses of Their Professional Tasks

Introduction: The awareness of the duties and responsibilities of operating rooms nurses is considered as a basis for systems monitoring and quality evaluation. Operating room nurses are supposed to be aware of their professional standards and achieve their functions following professional standards. Methods: This cross-sectional study was carried out based on the census and sampling with 143 operating room nurses working in nine training hospitals of Iran University of Medical Sciences. The research instrument was a researcher-made questionnaire, and the reliability was assessed through Cronbach's alpha. Also, both face and content validity of the questionnaire have been checked by faculty members. Data were analyzed by SPSS version 19 with descriptive statistics, Chi-square test, and Pearson's correlation coefficient. Results: In terms of preoperative responsibilities, 25.7%, 35.9%, and 38.3% of operating room nurses experienced the awareness levels of high, moderate, and weak, respectively. The awareness levels for 20.4%, 34.7%, and 44.9% of operating room nurses were evaluated as high, moderate, and weak, respectively. They were considering the post-operative responsibilities of operating room nurses, 32.3%, 32.3%, and 35.3% of operating room nurses who experienced the awareness levels of high, moderate, and weak, respectively. Conclusions: The results indicated that a vast majority of operating room nurses experienced a high level of awareness with respect to their responsibilities before, during, and after the operation. Nurses’ awareness of their mission, and management and official plans for promoting deficiencies in this regard could help promote health. Contextualized education on improving the quality of nursing services should be considered as a part of the training for OR nurses and suggested to investigate the awareness level of nurses and other treatment staff about the standards of their responsibilities in diverse sectors to perform suitable planning of tasks

Poly-dopamine-Beta-Cyclodextrin Modifi ed Glassy Carbon Electrode as a Sensor for the Voltammetric Detection of L-Tryptophan at Physiological pH

ABSTRACT The main purpose of this report was to develop application of poly-dopamine-beta-cyclodextrin modifi ed glassy carbon electrode (PDA-β-CD-GCE) towards electrooxidation and determination of L-Tryptophan (L-Trp) and also the evaluation its kinetic parameters. In continuation of our efforts to use PDA-β-CD-GCE for amino acids detection, our objective in the present work was to expand application of this sensor for the determination of L-Trp which is very sensitive