فهرست مطالب محبوبه علیزاده

The present study was conducted to predict risky sexual behaviors of female high school students based on executive functions and emotion regulation. The present research method was descriptive-correlational. The statistical population included all female secondary school students of Babol City in the academic year of 2022-2023, from which 200 people were selected as a sample using available and non-random sampling methods. Data were collected using Zarei et al.'s Risky Sexual Behavior Questionnaire (RSBQ, 2009), Gioia et al.'s Behavioral Rating List Of Executive Functions (BRIEF, 2000), and Garnefski & Kraaij's Cognitive Emotion Regulation Questionnaire (CERQ, 2006). Multiple regression analysis was used to analyze the data. The findings of the research showed that executive functions and emotion regulation were able to predict sexual risky behaviors (p<0.05) and in total explain 49% of the variance of sexual risky behaviors. Therefore, it can be concluded that executive functions and emotion regulation play a significant role in predicting risky sexual behaviors and the need to pay attention to these factors seems necessary to reduce risky sexual behaviors in students.

Cardiopulmonary resuscitation, commonly well-known as CPR, is an emergency technique that includes chest compression often with artificial ventilation in an exertion to manually preserve complete brain task until additional measures are taken to return spontaneous blood circulation and breathing in a person who is in cardiac arrest. According to the International Liaison Committee on Resuscitation Guidelines, CPR includes chest compressions for adults between 5 cm (2.0 in) and 6 cm (2.4 in) deep and at a rate of at least 100 to 120 per minute. Cardiopulmonary resuscitation is aimed to reverse vital organs as like as heart, lungs and for subsistence of patients. Several researches showed that different factors affect the resuscitation results. The current study was designed to assess the results of resuscitation and its association factors.
This retrospective, descriptive and analytic study was carried out in Baharloo Hospital, Tehran, Iran during March 2014 and February 2015. In current work, all resuscitated patients were imported and patients with uncompleted files and died before entrance to hospital were excluded. The data was obtained from medical records units, office files unit and the unit of quality improvement. Data were analyzed by use of SPSS version 22 (Armonk, NY, USA) software and Chi-square test and Student’s t-test.
From 891 patients, 813 cases were entered the study that 498 (61.3%) were male and 315 (38.7%) were female. 41.1% of resuscitation were successful and 58/9% were unsuccessful. The mean and standard deviation time of resuscitation was 28.80 and 12.6 minutes; the most frequent primary diagnosis was cardiovascular disease. In this study there was a significant difference between age and duration of the resuscitation with successful resuscitation (P= 0.02) but, in the variables of ward and resuscitation team were not significant (P> 0.05).
The results of this study showed that resuscitation in younger group, short duration of resuscitation and patients without heart diseases are more successful.

Today, Karyotying studies are important to understand the genetic structure of animals. In the current research to evaluate the chromosomal structure of some Iranian native dogs, blood samples were collected from the Kurdi, Sarabi and samples of Alborz province. Blood samples were cultured in defined medium for 72 h at 37 ˚С. Then the cell divisions were stopped at metaphase stage and chromosomal specimens were prepared for karyotype analysis. Next, centromeric index, total length of chromosome, chromosomal arm ratios and relative length of chromosomes were analyzed and the ideograms were created. The results indicated that the dog genomes contain 78 chromosomes including 38 acrocentric pairs in each sex, a pair of metacentric X in males and females and one metacentric Y chromosome in males. The average relative length of the autosomal chromosomes ranges from 1.13 to 4.89 μm in males and 1.10 to 5.21 μm in females. The ANOVA of the chromosomal data indicated that significant (P≤0.05) differences in chromosomal parameters were observed in animals. The results indicate a bias of chromosome asymmetry in animals which could be related to evolutions of the canine chromosomal structures.

The objective of the current study was analysis of the genetic structure of Iranian native dogs in comparison with the exotic breeds. To follow this, blood samples of 93 dogs were obtained from diverse areas of Iran and, in addition, 655 sequences of canine D-loop region obtained from GenBank. Total DNA of the samples were extracted by salting out procedure and applied as template for amplification and sequencing of the D-loop region of mtDNA. Sequence analysis of the 582-bp D-loop region of mtDNA in all samples defined a total of 25 haplotypes. The total nucleotide diversity was 0.01354± 0.00704 for Iranian native dogs. Analysis of molecular variance (AMOVA) showed significant percent for the variance between the studied populations (ΦST=0.029, P=0.0000). Fixation index values using FStatistics method ranged from -0.02671 to 0.3748. Analysis of molecular variance displayed significant difference between some of these populations. The variation was especially observed between Tazi and Sarabi, Bakhtiari, Alborz native and Western regions populations or between Sarabi population with Kurdi, Sangsari, Alborz native and Western regions populations. Bakhtiari population showed a significant difference (P < 0.05) with Alborz native and Western regions populations, and finally European breeds exhibited a difference with South West Asia breeds. In addition Tazi, Sangsari and Western regions populations displayed significant difference with European breeds and South West Asia breeds (P < 0.05). Overall, the results of this study showed an acceptable genetic variation and genetic similarity in some Iranian dog populations.