Signature of the maximally symmetric 2HDM via W±/Z -quadruplet productions at the LHC

We consider the maximally symmetric two-Higgs doublet model (MS-2HDM) in which the so-called Standard Model (SM) alignment can be achieved naturally by the virtue of an SO(5) symmetry imposed on the 2HDM. We investigate the signature of the MS-2HDM via → HX → VV ∗ X processes at the LHC for different values of tan β. We perform our calculations with next-to-leading-order (NLO) QCD accuracy, using the herwig7 multipurpose event generator at √s = 13 TeV center-of-mass energy. We show that the production of single SM-like Higgs bosons via W±/Z pairs is completely aligned with the SM. Interestingly, the presence of the heavy Higgs states significantly enhances the cross section for the W± /Z- quadruplet production channels in the low -p⊥ regions. These vital analyses may aid the future discovery of this minimal and very predictive extension of the SM and can be generalized to other realizations of the 2HDM

The life cycle of green tiger prawn in the northern part of the Iranian water, Persian Gulf Phase 1: the identification of migration route and determination of the spawning areas and nursery grounds

Shrimp fisheries in the Persian Gulf have a long history. Since 1960 trawl fishery for Penaeid shrimp developed in the middle part of the northern coasts of the Persian Gulf (Bushehr waters). From 1998 to 2004 landing of shrimp have fluctuated between 480t and 2700t per year. The major species of penaeid shrimp (more than 80 percent) in the Persian Gulf and Bushehr waters is Penaeus semisulcatus. More than 2000 vessels and 33000 fishermen in Bushehr area were involving of shrimp catch (August and September) in study area in the recent decade. This species has an economical important role in the region. The present study was carried out in Bushehr coastal waters from 2003-2005. This study are described the bio-dynamic and life history of Penaeus semisulcatus in Bushehr area. Monthly samples of shrimp were collected by R/V LavarII from January 2003 to March 2004 for 15 months in 50 fixed stations. The carapace length frequency data were used to estimate the growth, mortality and exploitation rates by FiSAT program for males and females. The Von Bertalanffy growth parameters were estimated as K = 1.6 Year-1 and 2.2 Year-1 and L = 38mm and 50.4mm for male and female respectively. The results of mortality rates for males are Z = 6.4 per year F=4.3 per year and M = 2.11 per year. These results for female are Z = 8.2 per year, F=5.8 per year and M 2.41 per year. The exploitation rates for male and female are E=0.67 and E = 0.70 respectively. Relatively high values of total mortalities and exploitation rates were obtained which indicate that this species is overexploited. The maximum age was calculated 15 months for females and 18 months for males. Gonad maturity results were shown, the major spawning periods of green tiger prawn in the study area is in winter and early of spring and also there is a minor peak in autumn. Therefore two peaks of spawning were happened during this study. These periods are the main rainy seasons in the Bushehr area. The size at 50 percent mature (L50%) is 40.6mm and less than 5% of females were smaller than 24mm CL. Mature shrimps were aggregated in 20-30m depth of middle and southern part of study area. Imam Hassan, Genaveh and Helleh areas were the most important spawning grounds in Bushehr waters. The sex ration (male/female) of 0.84 was found during study period. This ratio was calculated in different months and the number of females were increased in spawning months. The number of 2571 shrimp were tagged and released by a green color polyethylene steamer tag during 15 months of survey and also before shrimping season (June and July) in 2005. The recaptures were done in two shrimp seasons in August and September 2004 and 2005 and 68 tagged shrimp recaptured that 4 recaptures were omitted due to inconsistencies information. Maximum recapture depths were 16-20m and 26-30m for males and females respectively. The majority of shrimp had a speeds of less than 2 Km/day, but maximum speed was recorded 3-4 Km/day in males and 2 Km/day in females. Only 10 percent of shrimp moved more than 50Km in study area and majority of shrimps, about 70 percent, were recaptured within 20Km of released area. The maximum recorded distance was 127Km after 95 days liberty in a female shrimp, but another female shrimp had only 20Km movement after 381 days and it was the maximum time between release and recaptured date. Tagged shrimp mostly moved to the northern part (Bahrekan area) of study area and recaptured shrimps pattern described stronger movement to the deeper waters. In the shallow waters of study area, sampling of juveniles of P. semisulcatus was carried out from July 2003 to March 2005. The survey was done after spawning months of this species and sampling were carried out in July, November and December 2003 and January, February, April, June, July 2004 and February and March 2005. Some stations in less than 10m depths were trawled by a small boat, equipped with a small beam trawl and the prawns (P. semisulcatus) less than 15mm carapace length were collected as juvenile. In this study 748 individuals shrimp were collected during study period. These juveniles were observed in July and November 2003 and April and June 2004. The carapace length of juveniles ranged from 3mm to 15mm and minimum of mean of carapace length were 4.5mm in November and maximum 9.6mm in July. The juveniles were observed around southern part (Mottaf) and middle part (Helaileh) of vegetated sites. A few juveniles were observed in non-vegetated areas. In the nursery grounds 47% of marine organisms were included other species that Sparidae, Platycephalidae, crabs, shells and other penaeid shrimp species such as Metapenaeus af inis and M. stebbingi were observed in nursery ground of green tiger prawn. Very few juveniles were caught during the colder months and seasonal abundance of juveniles was observed in the warmer months. Present study was shown that mature shrimp are dominant from December till March and juvenile stages were mostly observed in April to July. Spawning was occurred through the year, with two peaks minor in autumn and major in winter and spring. Fishing activity should be controlled in spawning and nursery ground of shrimp

A Novel Combination of Surfactant Addition and Persulfate-assisted Electrokinetic Oxidation for Remediation of Pyrene-Contaminated Soil

Effect of surfactant addition on persulfate-assisted electrokinetic remediation of pyrene-spiked soil was studied. The influence of effective factors including voltage, surfactant addition, moisture content, and persulfate concentration on the removal of initial pyrene concentration of 200 mg kg–1 were investigated. A complete pyrene removal was observed for voltage of 1 V cm–1, saturated conditions, Tween 80 concentration of 20 mL kg–1, and persulfate concentration of 100 mg kg–1 after 24 h, corresponding to pyrene mineralization of 61 %, based on TPH analysis. The experimental results were best fitted with pseudo-first-order kinetic model with correlation coefficient of 0.968 and rate constant of 0.191 min−1. The main intermediates of pyrene degradation were benzene o-toluic acid, acetic, azulene, naphthalene and decanoic acid. Finally, an unwashed hydrocarbon- contaminated soil was subjected to persulfate-assisted electrokinetic remediation, and a TPH removal of 38 % was observed for the initial TPH content of 912 mg kg–1, under the selected conditions. This work is licensed under a Creative Commons Attribution 4.0 International License

Effect of Satureja hortensis extracted oil on Aspergillus flavusin fish feed

In a preliminary study, the antifungal properties of essential oil of Satureja hortensis at different tenderness were tested on potato – dextrose agar (PDA). The fungus Aspergillus flavus PTCC 5006 was isolated from pistachio nut obtained from Rafsanjan area, Iran. Among the essential oil compounds, 500 ppm concentration was completely inhibited Aspergillus flavus growth. After determination of the most effective concentration, it was added to fish feeds compound which inhibited fungal growth and production of aflatoxin. Its concentration was determined as 500 ppm and over of essential oil of Satureja hortensis. The essential oil of Satureja hortensis was analyzed by means of GC-MS and their effective factors were evaluated for fish feeds and their results are shown in tables

A survey on Movement and estimation of growth rate in banana shrimp (Penaeus merguiensis) released to the Persian Gulf and Oman sea waters (Hormuzgan province)

Banana shrimp (Penaeus merguiensis) is important shrimp species for stock enhancement in recent year in Hormozgan Tiab region. These crustacean spent post larve to juvenile cycle in mangrove creeks. Thus majore creek in this investigation are Tiab, Kolahi, Koleghan and Khamir (Laft). Maximum concentration of post larvaes in creek of Tiab, Kolahi and Koleghan are occur at April and in creek of Khamir is at May. Concentration of crustacean zoea and copepods that are diet of shrimp post larvaes, increase at this moment. Juveniles of Banana shrimp stay at those creek until June. At this time, juveniles reach to 14.6 mm (CL) and 2.9 g (TW). So optimum date to release is June for about 2.9 g of individuals. After June, concentration of juveniles decrease in creeks but increase in coastal waters. This variation in juvenile’s concentrations has negative correlation with temperature and salinity of water in creek. Amount of 187 fish stomachs (from 22 species) in the creeks were reviewed, about 56 (29.9%) of those stomachs were full or semi full conditions. Amount of 12 fish stomachs (6.4%) contain of shrimp as diet. The most important of these fish was Mangrove red snapper (Lutjanus argentimaculatus). About of 104789 juveniles of Banana shrimp (1.4g TW) in 2007 and 51401 juveniles (1.3g TW) in 2008 were tagged and released from 23 June to 16 July each year. Most of the shrimp (tagged and not tagged) released in Tiab creek. For recapture of tagged shrimp used 386 trawl survey and about 49.3 Km2 swepted by wooden boats. During the catch season (October to early November) about 10% of wooden boats and some shrimp processing companies were search daily for tagged shrimp, but no tagged shrimp were found

QUEST-DMC:Background Modelling and Resulting Heat Deposit for a Superfluid Helium-3 Bolometer

We report the results of radioactivity assays and heat leak calculations for a range of common cryogenic materials, considered for use in the QUEST-DMC superfluid 3He dark matter detector. The bolometer, instrumented with nanomechanical resonators, will be sensitive to energy deposits from dark matter interactions. Events from radioactive decays and cosmic rays constitute a significant background and must be precisely modelled, using a combination of material screening and Monte Carlo simulations. However, the results presented here are of wider interest for experiments and quantum devices sensitive to minute heat leaks and spurious events, thus we present heat leak per unit mass or surface area for every material studied. This can inform material choices for other experiments, especially if underground operation is considered – where the radiogenic backgrounds will dominate even at shallow depths

QUEST-DMC superfluid ³He detector for sub-GeV dark matter

The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/c2-TeV/c2 mass range. The direct, indirect and collider searches in this mass range have been extensive but ultimately unsuccessful, providing a strong motivation for widening the search outside this range. Here we describe a new concept for a dark matter experiment, employing superfluid 3He as a detector for dark matter that is close to the mass of the proton, of order 1 GeV/c2. The QUEST-DMC detector concept is based on quasiparticle detection in a bolometer cell by a nanomechanical resonator. In this paper we develop the energy measurement methodology and detector response model, simulate candidate dark matter signals and expected background interactions, and calculate the sensitivity of such a detector. We project that such a detector can reach sub-eV nuclear recoil energy threshold, opening up new windows on the parameter space of both spin-dependent and spin-independent interactions of light dark matter candidates

Does high-dose metformin cause lactic acidosis in type 2 diabetic patients after CABG surgery? A double blind randomized clinical trial

Metformin is a dimethyl biguanide oral anti-hyperglycemic agent. Lactic acidosis due to metformin is a fatal metabolic condition that limits its use in patients in poor clinical condition, consequently reducing the number of patients who benefit from this medication. In a double blind randomized clinical trial, we investigated 200 type 2 diabetic patients after coronary artery bypass surgery in the open heart ICU of the Mazandaran Heart Center, and randomly assigned them to equal intervention and control groups. The intervention group received regular insulin infusion along with 2 metformin 500 mg tablets every twelve hours, while the control group received only intravenous insulin with 2 placebo tablets every twelve hours. Lactate level, pH, base excess, blood glucose and serum creatinine were measured over five 12 h periods, with data averaged for each period. The primary outcome in this study was high lactate levels. Comparison between the 2 groups was made by independent Student’s t-test. To compare changes in multiple measures in each group and analysis of group interaction, a repeated measurement ANOVA test was used

Study of penculture of the common carp (Cyprinus carpio L.) fingerlings at the Gorgan Bay to the maturity stage (broodstock management)

The aim of present project is study on the possibilities of brood stock production from fingerlings in the penculture condition and the effect of density on it .this project was done during three years with two different treatment and three repetitions in the Gorgan Bay. First treatment with two fingerlings per square meter and the 2nd with four fingerlings per square meter in each pen.To carry out the project at first fingerlings were brought from breeding and recruitment centre –Sijeval (Kolmeh) and the stocked at the earthen pound with concentrated food .After that they were adaptated with brakish water between 7-10 days and transferred to Gorgan Bay for cultivation with average weight of 93.78±32.66 grams and 20.53±2.37 cm in length. It should be noted that 6 pens (which surrounded by nets in the water) were fixed using mast with 15-20 cm in diameter and 5.5 meter in length , Net mesh size was 16 mm with string number 33 of kapron.Feeding was done according to the program two times by giving concentrated food at the period of cultivation Physic -o -chemical factors were measured. biometery was done monthly at each pen and other fishes (unwanted) were observed at the same time. results indicate that in the 1st and 2nd treatments average survival rate was 52.3 and 41 percent respectively with average weight of 410±64.98 grams and 390±52.8 and 28.3±1.79 cm and 27.66±1.57in length. SPSS used to analysethe data such as average length and weight of fish in the treatments and in different months with ANOVA method (p≤ 0.05) . results show that there is no significant difference between treatments. Autopsy observation also showed that fishes (female and male) are mature and histological studies showed that most of observed eggs are entirely mature with 800-1200 micron diameter gonad ( male) were mature at the pen in the Gorgan Bay condition .The male and female hormones were evaluated. 17-B- Estradiol and 11-keto testosterone hormones for adult fish (female and male) parents respectively are similar in dense with those adult fish before injection to use at the artificial breeding. Maturation were verified by autopsy, histology and hormone studies