Transfusion-related acute lung injury in multiple traumatized patients

Background: Many of the multiple traumatized patients who refer to the hospital need transfusion. Transfusion-related acute lung injury (TRALI) is a serious clinical syndrome associated with the transfusion of plasma-containing blood components. In the article, we present a case of TRALI following transfusion of packed red blood cells Case Presentation: A 24 year old male referred to Shahid Beheshti Hospital due to multiple trauma with left femoral and humerus fractures. Due to severe anemia he received 3 units of packed red blood cells. The symptoms of TRALI began 2 hours after transfusion. He was transferred to intensive care unit (ICU) due to metabolic acidosis and severe hypoxia. The TRALI was confirmed after ruling out the other probable pulmonary diseases. He recovered and was discharged. Conclusion: Transfusion related acute lung injury should be considered in any case receiving transfusion of plasma containing blood components

Seroprevalence of hepatitis B and C virus and HIV markers among blood donors from Shahre-Kord, Iran (2004-2006)

Objective: To determine the prevalence of HBV, HCV and HIV infection in voluntary blood donors from Shahre Kord, a central province of Iran, during 2004-2006 Design: Retrospective, descriptive and analytical study based on data from Serology Laboratory of the Blood Transfusion Center (BTC) at Shahre-Kord, Iran Setting: The BTC, Shahre-Kord, Iran Subjects: 35,124 apparently healthy voluntary blood donors Intervention: Detection of HBsAg, anti-HBc, anti-HCV and anti-HIV markers in blood samples using immunoenzymatic tests and Western blotting, as determined by the BTC Main Outcome Measures: Analysis of data obtained from the Serology Laboratory of the BTC, Shahre-Kord, Iran to determine prevalence Results: Overall prevalence estimates were: 0.1 for HBsAg, 0.07 for anti-HBc, 0.2 for anti-HCV and 0.002 for anti-HIV antibody. There was a statistically significant increase in the overall prevalence of HBsAg and HBcAb (from 0.015 to 0.02) and the prevalence of HCVAb (from 0.06 to 0.48) during the study period (p < 0.05). Three male donors were co-infected by HCV and HBV. Conclusion: This study suggests the need to investigate risk factors and risk groups for these infections in Iran. In the light of these results, an effective control and training program should be implemented

Scopolamine reduces the density of M1 muscarinic neurons in rats' hippocampus

Cholinergic system in CNS is involved in learning and memory. Scopolamine as muscarinic acetylcholine receptor antagonist is used for creation of memory impairment. The purpose of this study is evaluation of scopolamine-based amnesia on memory retention and the effect of this phenomenon on the number of neurons contains M1-receptors in the male Wistar rats hippocampal regions. Thirty-five male Wistar rats (200±20 g) were distributed randomly into five groups. Control group (intact samples) and 3 experimental groups with sham group (saline) were tested by the method of passive avoidance (shuttle box) in doses of 0.2, 0.5 and 1 mg/kg (intraperitoneally) as a single dose. After one week, memory test was taken from the rats. Finally, brains dissected from sacrificed rats, and then processed tissues were stained with antibody against M1 receptors (Immunohistochemistry technique) followed by counting of hippocampal CA1, CA3 and DG regions. Our results showed significant decrease in neurons contains M1-receptors in all area of hippocampus. We found that the less number of M1-neurons showed in 1 mg/kg dose of scopolamine. We concluded that scopolamine as muscarinic acetylcholine receptor antagonist can reduce dose-dependently the density of M1-neurons in all areas of hippocampus

Role of histaminegic and calcium channels in the inhibitory effects of hydroalcoholic extract of matricaria recutita L. on isolated rabbit jejunum

Introduction: Considering the long traditional history of anti-inflammatory and anti-spasmodic effects of Matricria spices on the gastrointestinal system, the present study aimed to investigate the role of calcium channels and Histamine receptors in the inhibitory effects of hydroalcoholic dry extract of German chamomile (Matricaria recutita L.) on the isolated rabbit jejunum. Methods: All experiments were done on the isolated jejunum of New Zealand rabbits (1.8-2.5 kg). Dry extract of aerial parts of M. recutita was obtained by the maceration technique. The study was performed on two groups (n=6 in each group). In the first group, the effects of cumulative concentrations of M. recutita (3×10-3-1×10-2 mg/ml) on normal and K+-induced contractions (50 mM) of isolated jejunum were studied. In the second group, the inhibitory role of M. recutita (3 – 13×10-3 mg/ml) was evaluated in the presence and absence of histamine and cetrizine. In the presence and absence of 10 μM certizine, a histamine H1-antagonist, a concentration-dependent inhibitory effect of M. recutita extract in the range of 3-13×10-3 mg/ml was recorded the rabbit jejunum. Results: Results showed that EC50 of M. recutita in the absence and presence of K+ was 6.3×10-3 and 6.5×10- 3mg/ml, respectively. IC50 values for two concentrations of M. recutita (8×10-3 , 1×10-2 ) to abrogated contractive phase of Histamine was 9.55 × 10-6 and 1.57 × 10-6 μM. Cetrizine (10 μM) abolished inhibitory effects of M. recutita (IC50=3.6×10-3), (p< 0.001). Conclusion: Dry extract of matricaria recutita had inhibitory effects on the contractions of isolated rabbit jejunum. Calcium channels and histamine were involved in these antispasmodic effects

Development and prototyping of SMA-metamaterial biaxial composite actuators

Shape memory alloys (SMA) are excellent candidates for implementation in actuator systems due to their ability to recover their original shape after high-strain loading through a thermally-induced phase transition. In this work, we propose and develop a novel SMA-metamaterial actuator which is capable of exhibiting a reversible, global elongation in multiple directions induced by the unidirectional contraction upon heating of a single SMA component. This actuator consists of (a) an SMA component, (b) a bias component and (c) the metamaterial geometry, with each component having a distinct function: (a) actuation activation, (b) reversibility of actuation upon deactivation and (c) amplifying and re-directing the uni-directional SMA actuation globally throughout the actuator, respectively. A prototype actuator was designed and tested in various configurations over multiple activation/deactivation cycles in order to demonstrate the functionality and reusability of this system. Furthermore, a theoretical model which predicts the actuation stroke of the system on the basis of the material properties of the SMA and bias components as well as the geometry of the metamaterial system was developed and validated. The findings of this work demonstrate the considerable potential of SMA-metamaterial actuators for implementation in systems requiring a multi-axial actuation output

Stage IE primary bone lymphoma: Limb salvage for local recurrence

Background: Primary bone lymphoma or non-Hodgkin lymphoma of bone is a rare disease. There are only a few case series of stage IE of this condition in medical literature. The aim of this study is to determine the rate of survival for stage IE after combined modality treatment, the rate of local recurrence, and the results of limb salvage in cases of local recurrence. Methods: We collected data from 61 patients with histologically confirmed PBL treated at the Musculoskeletal Oncology Department of our hospital from 2000 to 2010. Retrospective evaluation included demographics, symptoms, tumor locations, outcomes of surgical treatment for local recurrence and survival rates. Results: All patients received Combined Modality Therapy. Overall, five year survival was 89 and five year disease free survival rate was 78. Local recurrence occurred in 6 patients during follow up period, which was treated surgically by wide excision and reconstruction. The mean follow-up for the local recurrence group was 36(24-54) months and mortality rate in this group was 17. Conclusions: Combined Modality Therapy for stage IE primary bone lymphomaresults in good survival rate. In case of local recurrence, wide excision and reconstruction improves the outcomes. © 2015 BY THE ARCHIVES OF BONE AND JOINT SURGERY

Modified Dolphin Monitoring Operator for Weight Optimization of Frame Structures

In this article, a modified dolphin monitoring (MDM) operatoris introduced and used to improve the performance of the collidingbodies optimization (CBO) algorithm for optimal designof steel structures (CBO-MDM). The performance of the CBO,enhanced colliding bodies optimization (ECBO) and CBOMDMare compared through three well-established structuralbenchmarks. The optimized designs obtained by thesealgorithms are compared, and the results show that the performanceof CBO-MDM is superior to those of the other twoalgorithms. The MDM is found to be a suitable tool to enhancethe performance of the CBO algorithm

Effect of parasite infection with Posthodiplostomum cuticola (Nordmann, 1832) on fish growth rate in Zaringol Stream in Golestan Province

This study investigated the effect of parasite infection with Posthodiplostomum cuticola on fish growth rate in Zaringol Stream in Golestan Province. A total number of 447 fish specimens (173 Capoeta capoeta gracilis, 111 Alburnoides eichwaldii, 131 Paracobitis malapterura, 32 Neogobius fluviatilis) were captured by electrofishing during December 2009 to September 2010. Total number of parasite on fish body was counted by investigating internal organ and surface of skin and branch. Results showed that slope of regression curves and condition factor were significantly lower in infected C. c. gracilis. N. fluviatilis was the most abundant infected fish in Zarringol Stream. It seems that it's feeding dependence on benthos makes this fish more susceptible to infection by parasite

Informational and structural needs of nursing data classification in computerized systems

Background & Aim: Healthcare classification systems help to gather information and process health data. Nursing management focus on developing computerized records to answer legal, managerial and clinical needs. The Classification systems help organizations to use nursing data. This study investigated informational and structural needs of nursing data classification. Methods & Materials: This descriptive-comparative study was carried out in 2009. Current classification systems for nursing were investigated and their specifications were gathered in a questionnaire. The items were prioritized by experts in four degrees. Using statistical analysis items with a priority over 80 percent (average 2.4) were selected. Results: Findings about nursing diagnosis, intervention and outcomes showed that diagnosis item (average 2.93 out of 3), intervention item (average 2.52 out of 3), and outcome item (average 2.84 out of 3) should be presented in the system. Structure of nursing data classification was identified as a hierarchical and combinational classification. The computerized terminology (average 1.86 out of 3) had no priority. Conclusion: It is suggested to make decisions for standardizing nursing data to use in computerized systems. Since, nursing system in Iran is moving toward defining tariff for nursing services, coding nursing care components will help this plan to be developed

On the Globalization of the {QAnon} Conspiracy Theory Through {Telegram}

QAnon is a far-right conspiracy theory that became popular and mainstreamover the past few years. Worryingly, the QAnon conspiracy theory hasimplications in the real world, with supporters of the theory participating inreal-world violent acts like the US capitol attack in 2021. At the same time,the QAnon theory started evolving into a global phenomenon by attractingfollowers across the globe and, in particular, in Europe. Therefore, it isimperative to understand how the QAnon theory became a worldwide phenomenon andhow this dissemination has been happening in the online space. This paperperforms a large-scale data analysis of QAnon through Telegram by collecting4.5M messages posted in 161 QAnon groups/channels. Using Google's PerspectiveAPI, we analyze the toxicity of QAnon content across languages and over time.Also, using a BERT-based topic modeling approach, we analyze the QAnondiscourse across multiple languages. Among other things, we find that theGerman language is prevalent in QAnon groups/channels on Telegram, evenovershadowing English after 2020. Also, we find that content posted in Germanand Portuguese tends to be more toxic compared to English. Our topic modelingindicates that QAnon supporters discuss various topics of interest withinfar-right movements, including world politics, conspiracy theories, COVID-19,and the anti-vaccination movement. Taken all together, we perform the firstmultilingual study on QAnon through Telegram and paint a nuanced overview ofthe globalization of the QAnon theory.<br