169 research outputs found

    A phylogeny analysis on six mullet species (Teleosti: Mugillidae) using PCR-sequencing method

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    In this study, genetic differences and phylogenic relationships among six Mugillidae species (Mugil cephalus, M. capito, Liza subviridis, L. saliens, L. aurata, Valamugil buchanani) were determined using PCR-sequencing. M. cephalus, L. subviridis, and V. buchanani from the Persian Gulf and Oman Sea, and L. aurata and L. saliens from the Caspian Sea were collected. Samples of an imported, Egyptian species M. capito were obtained from the Gomishan Research Center in Gorgan. Total DNA from the samples were extracted according to phenol-chloroform procedure. The extracted total DNAs were amplified using polymerase chain reaction (PCR) and then sequenced. The number of bases in the mitochondrial 16s rRNA genome used in this study approximated 600 base pairs. The size of the bands was identical in all the studied species and no heteroplasmia was observed. In addition, the numbers of variable, preserved, and Pi sites were about 114/624, 488/624, and 110/624, respectively. Analysis of the sequences showed great differences between Mugil species and the other studied species. The phylogenetic tree obtained through Neighbor-Joining method revealed that L. saliens and L. aurata were in the same branch while L. subviridis was in a separate branch. In contrast, Maximum Parsimony tree located L. subviridis and L. aurata in a single branch and assigned L. saliens to a distinct branch. This result brings in the question of monophyletic origin of the genus Liza

    Dutch Nao Team: Team description paper: Standard Platform League: German Open 2010

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    This is the debut of the Dutch Nao Team in the Standard Platform League. The team is a recreation of the Dutch Aibo Team, which was active in the predecessor of the SPL (2004-2006). This year participation is mainly intended to gain experience. As basis for the competition the code release of B-Human is used, with two modifications. The first modification is improved kicking behavior to accommodate the new ball. The second modification is two use both Nao camera’s (one for ball control and one for localization)

    Acylated ghrelin, growth hormone and IGF-1 levels in the cord blood of small for gestational age newborns

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    Background: Ghrelin is a pleiotropic hormone that regulates feeding and energy balance and stimulates growth hormone release. Ghrelin also exerts developmental and organizational effects during prenatal life. Objectives: The aim of this study was to determine ghrelin levels in cord blood of small for gestational age (SGA) infants and its association with GH (growth hormone) and IGF-1 levels (insulin-like growth factor-1). Methods: Cord blood sample was obtained from 31 SGA and 25 appropriate for gestational age (AGA) infants. Acylated ghrelin, GH, and IGF-1 levels were measured by enzyme-linked immunosorbent assay. Results: No significant differences were observed in ghrelin and GH concentrations between SGA and AGA infants. However, IGF-1 levels were significantly lower in SGA infants. Cord blood ghrelin was negatively correlated with the infants' birth weight (r = -0.33, P = 0.013); on the other hand, IGF-1 level was positively correlated with birth weight (r = 0.43, P = 0.002). Conclusions: IGF-1 has the most significant effect on intrauterine growth. Acylated ghrelin is detectable in cord blood and correlated with birth weight, suggesting a role in intrauterine development, but its level is not affected by intrauterine growth retardation. © 2016, Iranian Society of Pediatrics

    Relationship between functional tests and knee muscular isokinetic parameters in patients with patellofemoral pain syndrome

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    To measure quadriceps and hamstring muscle strength with Isokinetic dynamometer in patients with patellofemoral pain syndrome (PFPS) and also to examine the relationship between muscle strength and functional test scores and subjective assessment. In this case-control study a total of 30 subjects (15 healthy and 15 patients with diagnosed PFPS) completed Kujala questionnaire concerning subjective functional knee assessment. Then muscle strength was measured with Isokinetic dynamometer in sitting position during 10 to 90 degree of knee flexion in 60 and 120 degree per sec speeds. Finally two kinds of functional tests (step down and semi-squat) were performed by each subject. There was no relationship between functional test scores and Isokinetic strength assessment. There was a poor relationship between functional test scores and Kujala questionnaire score (r = 0.47 for semi squat test and 0.37 for step down test). The overall mean scores of quadriceps Isokinetic parameter in 60 degree per sec speed, functional test scores and KuJala subjective knee assessment scores was less in patients with PFPS. This study showed that both Isokinetic dynamometry and functional tests must be done individually in patients with PFPS

    Monitoring of serum total cortisol level in burned traumatic patients

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    Background: Systematic inflammatory syndrome causes death in many conditions. Inflammation and anti-inflammation parameters variation monitoring were done by different clinical and lab methods, however, determining the progression of inflammation is very important for on time interference, gaining best results, and cost controlling. In this condition, adrenal insufficiency's variation causes water and electrolyte disorders, circulatory failure, and uncontrolled progression of inflammatory response, which is very important. Routine serum total cortisol level monitoring for SIRS is not advised as yet, and corticosteroid was used blindly according to hemodynamic condition and physician diagnosis. Objectives: In this pilot study, the ability of first three days monitoring serum total cortisol level in SIRS of burned ICU traumatic patients was studied for outcoming improvement. Methods: A total of 60 patients, 15 - 70 years old, < 80 burn, with systemic inflammatory response syndrome, during first three days of admission in the ICU, that weren't included in the exclusion criteria (patients with history of clinical adrenal insufficiency or corton usage, or recent drug history of etomidate or ketoconazole), were divided randomly between two groups with 30 patients. The first group considered under the routine clinical treatment and in the second group, besides the routine methods cortisol daily measurement at 8 o'clock, was done during three days to find the cortisol level under 15 ug/dL, and replacement therapy with 50 mg hydrocortisone IV, four times a day. Results: None of the patients had a cortisol drop during their first three days. Among patients with cortisol more than normal, 20 (6 patients) died. Conclusions: Despite the fact that total serum cortisol drop during systemic inflammatory response syndrome may happen, it is not prevalent, however, it is wise to consider it as an effective parameter on monitoring of treatment measures. Copyright © 2018, Author(s)

    3D Huygens Principle based Microwave Imaging through MammoWave Device: Validation through Phantoms.

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    This work focuses on developing a 3D microwave imaging (MWI) algorithm based on the Huygens principle (HP). Specifically, a novel, fast MWI device (MammoWave) has been presented and exploited for its capabilities of extending image reconstruction from 2D to 3D. For this purpose, dedicated phantoms containing 3D structured inclusion have been prepared with mixtures having different dielectric properties. Phantom measurements have been performed at multiple planes along the z-axis by simultaneously changing the transmitter and receiver antenna height via the graphic user interface (GUI) integrated with MammoWave. We have recorded the complex S21 multi-quote data at multiple planes along the z-axis. The complex multidimensional raw data has been processed via an enhanced HP-based image algorithm for 3D image reconstruction. This paper demonstrates the successful detection and 3D visualization of the inclusion with varying dimensions at multiple planes/cross-sections along the z-axis with a dimensional error lower than 7.5%. Moreover, the paper shows successful detection and 3D visualization of the inclusion in a skull-mimicking phantom having a cylindrically shaped inclusion, with the location of the detected inclusion in agreement with the experimental setup. Additionally, the localization of a 3D structured spherical inclusion has been shown in a more complex scenario using a 3-layer cylindrically shaped phantom, along with the corresponding 3D image reconstruction and visualization

    Investigation of the relationship between umbilical cord pH and intraventricular hemorrhage of infants delivered preterm

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    OBJECTIVE: We measured the level of pH gases in premature infants at birth, and examined the relationship between brain ultrasonography on the third and seventh day after birth. A case-control study conducted at the Neonatal Intensive Care Unit (NICU) of Shahid Akbar Abadi Hospital, Iran, during the years 2016-2017. METHODS: All premature infants who were admitted to NICU were enrolled in the current study. At birth, a blood gas sample was taken from the umbilical cord of the infants. On the third and seventh day after birth, an ultrasound of the brain of each neonate was performed by a radiologist. The umbilical cord was evaluated for blood gases in 72 neonates (mostly boys). RESULTS: Sixty-six newborns had normal sonography, and 16.7 (12 cases) had anomalies. A total of 75 of the 8 infants with intravenous bleeding were girls, which were significantly different from those in the non-hemodynamic group (62.5 male) (P 0.049). However, the type of delivery, mean weight, height, head circumference, the circumference of the chest, and Apgar score did not differ between the two groups. Mean pH, HCO3- and PCO2 in umbilical cord blood gas samples were not significantly different between the two groups with or without intraventricular hemorrhage (IVH). Although it was not related to gender and type of delivery in newborns. CONCLUSION: Blood gases do not help in determining the occurrence of IVH in infants. Nevertheless, it is associated with immaturity and fetal age

    Nosocomial infection in an Iranian neonatal intensive care unit: Hospital epidemiology and risk factors

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    Background: Hospital-acquired infection is one of the main concerns in Neonatal Intensive Care Units (NICUs), leading to increased mortality, hospital stay, and costs. Objectives: This study aimed to investigate the risk factors of hospital-acquired infection in NICUs. Methods: A descriptive, cross-sectional, prospective study was conducted in the NICU of Ali Asghar Children Hospital for one year. All admitted newborns were sampled on a simple basis. The criteria for the diagnosis of hospital-acquired infection were based on the definitions of the CDC and the NNIS system. Risk factors such as days of fully catheters usage, nurse-to-patient ratio, history of surgery, prematurity, and mechanical ventilation were considered as variables. The data collection tools consisted of a patient information questionnaire, the monthly report of the hospital infection control committee based on the NNIS system, a daily schedule of all risk factors for each infant, and the monthly nurse-to-patient ratio in the NICU. The STATA software was used for data analysis. Results: In our study, 654 newborns were enrolled. The rate of hospital-acquired infections was 13.5. Moreover, 80.7 of the cases exhibited sepsis (72.7 diagnosed based on clinical findings and 8 based on positive blood culture). Statistical analysis showed 9 pneumonia cases, 8 surgical site infection cases, and 2.3 urinary tract infection cases. The average time to the occurrence of hospital-acquired infection was 13.5 days after admission. All risk factors were significantly higher in the infected group than in the control group (P = 0.0001). Furthermore, surgical interventions were significantly more in the infected group than in the non-infected group (34.1 vs. 6.7, respectively, P = 0.0001). The prevalence rates in different weight ranges (less than 1000 g, 1001 to 1500 g, 1501 to 2500, and above 2501 g) were 2.6, 6.9, 21.4, and 69.1, respectively, in the infected group, which were significantly different from those of the non-infected group (P = 0.0001). The most common etiologic microorganism was Acinetobacter baumannii. Conclusions: Factors such as surgery, the presence of a central venous catheter, and the increased length of hospital stay significantly increased the hospital-acquired infections. Reducing invasive procedures, maintenance of full catheters, and providing optimal nursing care can help control hospital-acquired infections. © 2020, Author(s)
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