A Double Parton Scattering Background to Associate WHWH and ZHZH Production at the LHC

Higgs boson production in association with $W$ and $Z$ bosons at high luminosity CERN Large Hadron Collider (LHC,$\sqrt{s}$=14 TeV), is one of the most promising discovery channel for a SM Higgs particle with a mass below 135 GeV, where the Higgs decays into $b\bar{b}$ final states is dominant. The experimental capability of recognizing the presence of $b$ quarks in a complex hadronic final state has brought attention towards the final states with pairs for observing the production of the Higgs at the LHC. We point out that double parton scattering processes are going to represent a sizable background to the process.Comment: 4 pages, 3 figures, Talk given at 13th International Conference in QCD (QCD 06), Montpellier, France, 3-7 Jul 200

Antimicrobial Photodynamic Therapy

Photodynamic therapy PDT has appeared in recent years as a non –surgical method for the treatment of cancer and many inflammatory conditions resulting from infection with bacteria, fungi, or viruses and in this side known as Antimicrobial Photodynamic Therapy .This treatment is an oxygen-depending photochemical reaction and occurs as are a result of activating photosensitive compound which leads to the production of cytotoxic oxygen types mostly O2 (singlet oxygen). PDT system composed of three ingredients: light source, photosensitizers and oxygen. PDT can be used in periodontal pocket treatment in order to avoid the use of antibiotics and their side effect as well as reduce the emergence of resistant strains. The application of PDT are in continuous progress and the future of PDT is bright and promising more development especially in the treatment of cancer and many inflammatory disease such as wound and periodontal infection. So, this review aims to explain the mechanism of action and their role in the treatment of the inflammatory injuries

Показатели перекисного окисления липидов биологических мембран и эндогенной интоксикации у больных с псориазом на фоне хронического вирусного гепатита С

Aim. To study the features of lipid peroxidation of biological membranes and accumulation of toxic metabolites in the body of patients with psoriasis, depending on the presence of concomitant chronic viral hepatitis C.Materials and methods. In the survey, participated 56 patients with a vulgar form of psoriasis who received in-patient treatment at the Nalchik skin clinic in 2016–2017, divided into 2 groups, depending on the presence of concomitant chronic viral hepatitis C. In patients, the content of malonic dialdehyde in blood was determined as an indicator of the state of the prooxidant system, ceruloplasmin and erythrocyte catalase, as indicators of antioxidant protection, and also for the evaluation of the Intoxication Syndrome; the level of substances of low and medium molecular mass and oligopeptides in the biological environments of the organism in different periods of the disease.Results. It was found that the presence of concomitant chronic viral hepatitis C in patients with psoriasis was characterized by a more pronounced increase in the concentration of lipid peroxidation products than in the group of patients with hepatitis without psoriasis, accompanied by a decrease in the activity of antioxidant enzymes in the blood plasma and an increase in the activity of catalase in erythrocytes. Simultaneously, the presence of chronic hepatitis C led to a significantly higher content in the body fluids of patients with low and medium molecular weight substances and oligopeptides.Цель. Изучение особенностей перекисного окисления липидов биологических мембран и накопления токсических метаболитов в организме больных псориазом в зависимости от наличия у них сопутствующего хронического вирусного гепатита С.Материалы и методы. В обследовании участвовали 56 больных вульгарной формой псориаза, получавших стационарное лечение в кожном диспансере г. Нальчика в 2016–2017 гг., разделенных на две группы в зависимости от наличия сопутствующего хронического вирусного гепатита С. У больных определяли содержание в крови малонового диальдегида как показателя состояния прооксидантной системы, церулоплазмина и каталазы эритроцитов как показателей антиоксидантной защиты, а также для оценки синдрома интоксикации — уровень веществ низкой и средней молекулярной массы и олиопептидов в биологических средах организма в различных периодах заболевания.Результаты. Оказалось, что наличие сопутствующего хронического вирусного гепатита С у больных с псориазом характеризовалось более выраженным по сравнению с группой больных псориазом без гепатита увеличением концентрации продуктов липопероксидации, сопровождающееся снижением активности антиоксидантных ферментов в плазме крови и повышением активности каталазы в эритроцитах. Одновременно наличие хронического гепатита С обусловило достоверно более высокое содержание в биологических жидкостях организма больных веществ низкой и средней молекулярной массы и олигопептидов

Bi Odegradability of Polyvinyl Alcohol in Sand for Resin Bonded Sand Casting Process

Resin bonded sand casting is widely used for manufacturing automotive parts, especially those made of aluminium alloys. In general, resin bonded sand casting use alkaline resin as binding agent. Typically, they are from non-biodegradable materials that have issues on reclamation and disposal of the sand as well as cause hazard to the environment. Therefore, a biodegradable resin consisting of Polyvinyl Alcohol (PVA) as one of the solution contents was developed to substitute the non-environmental friendly resin. The purpose of this investigation is to attest that PVA is a biodegradable material under natural environment. Weight loss quantification was used as a method to study the biodegradability of PVA and Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy were used to examine the molecular bonding as well as the morphological structure of the resin after biodegradation. The degradation process was evaluated by the weight loss and molecular structure of the PVA. At the end of this study, the weight loss of PVA is insignificant to show the biodegradation process. However, further investigation using FTIR and Raman spectroscopy methods; it is observed that there is a significant change in molecular and morphological structure of PVA

Same-sign W pair production as a probe of double parton scattering at the LHC

We study the production of same-sign W boson pairs at the LHC in double parton interactions. Compared with simple factorised double parton distributions (dPDFs), we show that the recently developed dPDFs, GS09, lead to non-trivial kinematic correlations between the W bosons. A numerical study of the prospects for observing this process using same-sign dilepton signatures, including same-sign WWjj, di-boson and heavy flavour backgrounds, at 14 TeV centre-of-mass energy is then performed. It is shown that a small excess of same-sign dilepton events from double parton scattering over a background dominated by single scattering WZ(gamma*) production could be observed at the LHC.Comment: 14 pages, 8 figures. Added references, slight changes in the text

Multiple weak gauge boson production in high energy hadronic collisions

SIGLEAvailable from British Library Document Supply Centre- DSC:D88658 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

A Preliminary Study on Colour Recognizer for Visually Disabled People

Nowadays, visually disabled people face difficulties to match the colour of everyday life. This comprises activity to find the colour of cloth, the colour of food and surrounding items near them. Before this, there are many methods developed to solve this problem like braille sticker with colour code embedded, human assisting and a device that can produce audio output from colour sensor data called colour recogniser. This paper presented a preliminary study on colour recogniser for visually impaired people. The colour recogniser consists of three components; microcontroller, a colour sensor and a pair of speaker. The colour sensor will read the colour of desired surface or object and send reading values to the microcontroller. The microcontroller will process the information and displayed the colour audio output through the speaker based on the recognised colour. The device is powered by dry cell batteries and also lightweight. It is designed to be user-friendly, practical and also easy to carry everywhere. To ensure the device is working correctly in determining the type of colour detected, an experiment to validate the device was performed with 12 standard colours. The result shows that validation of the colour recogniser has proved the ability of the colour recogniser. This device will be useful for visually disabled people and can help them to solve their difficulties to match the colour for everyday life