Juniper Publishers journal of scientific and technical research

  Trends in Technical & Scientific Research Opinion Context Food may be assumed as a complex mixture of chemicals. Some are intrinsic components, including macro-and micronutrients, anti-nutrients and inherent toxicants, while others are extrinsic, either added or resulting from natural or industrial sources. In addition, process-related chemicals are formed during processing. To understand the health significance of food chemicals is complex. Many increase but others reduce nutritional value. Some may be associated with beneficial effects. A number have been shown to be harmful, producing toxicity. Therefore, chemicals must be managed to ensure that food is safe. Risk assessment, combining exposure and toxicological information, has been valuable to identify chemicals of concern on which management efforts should focus. Toxicological characterization is a resource-intensive and time-consuming process based on feeding experimental animals with high doses of t...

  Trends in Technical & Scientific Research Opinion In the recent centuries, the increase in the global population has led to an increase in the aggregate demand for resources, their intensive use around the world. In an unprecedented and predatory way of using natural resources around the world in the course of the last centuries, has led to an accelerated depletion of their reserves, a significant degree of their degradation and, most importantly , it led to the introduction of new and exacerbation of existing global environmental problems, such as desertification, change (warming) of climate, the disappearance of rare species of flora and fauna, etc. The aggravation of the above problems all over the world, expressed in the lack of acceptable resources for use, in a strong decline in efficiency and productivity in the frequency of a natural and climatic nature, bearing huge losses, contributed to the emergence of environmental problems and improved living standar...

  Trends in Technical & Scientific Research Abstract Calcium silicates production by alternative methods to solid state reaction method has gained importance because of the possibility to obtain materials with higher performance and less energy consumption than the traditional process. Exploring the application of non-conventional methods for the production of cementitious materials is an interesting alternative to produce materials with high performance, as nanoparticles, which are expected to permit high reactivity of the phases. The alternative methods require more studies allowing to understand the individually and the combine effects of synthesis processes conditions over the particles properties. Keywords: Synthesis; Alternative methods; Calcium silicates; Clinker; Portland cement; Pure cement phases Considerations Global demand of cement is increasing year by year in a factor of 25; therefore, greenhouse gas emissions from this in...

  Trends in Technical & Scientific Research Abstract Although the visible light emission by living organisms is generally thought to be rare, in fact the bioluminescent phenomenon can be widely observed in nature, for examples insects, fishes, bacteria, and fungi. The phenomenon has intrigued scientific researchers over the years.The chemical mechanisms underlying bioluminescence differ between species. Some mechanisms, such as bioluminescence of firefly, jellyfish, bacteria, and dinoflagellate, have been elucidated and further more their principles have allowed the development of many novel technologies in agriculture, biology, ecology, and medicine. However, many other bioluminescence mechanisms yet remain to be understood. Further research of bioluminescence will lead discoveries of biological significance and novel possibility in science. Here I present studies on chemical mechanism underlying fungal bioluminescence, which are actively in progress. Keywords: B...

  Trends in Technical & Scientific Research Abstract As a result of the agrarian reforms implemented in the Republic of Azerbaijan, the basis for the dynamic development of agriculture was created. Major changes have been made in the agrarian sector, new economic and property relations have been formed, the normative legal base has been improved. An important issue has been raised to improve the quality of erosion lands and the productivity of agricultural crops. Keywords: Humus; Soil; Erosion; Layer; Ostepennye; Not washed Introduction For solving various practical issues and in the first place, the most rational distribution of crops and increase their productivity soil must be evaluated, taking into account their quality and its changing under the influence of industrial activity. To that end, it had explored common at the site soil research natural areas. Their evaluation was performed from the basis of agrochemical and water-physic...

  Abstract Objective: To explore the self-satisfactory service and association of emergency medical technicians at facing emergency dispatch when encountering international tourists. Method: Within the period from September to November in 2016, we delivered 970 questionnaires to Emergency Medical Technicians (EMT) who worked in the fire departments of Taipei City (220 copyies), Kaohsiung City (540), and Chiayi County (210). A total of 937 eligible respondents completed their responses with a return rate of 96.59%. Data including personal demography, technician expertise ability, emergency experience (34 items), foreign language ability, self-satisfactory service level, and suggestions to the issue for improving ambulance services treating international tourists (6 items) were collected. We (1) proposed a model with 7 hypotheses and used Smart-PLS software to examine their path coefficients effective, and applied Rasch model to calibrate item parameters of these t...

  Trends in Technical & Scientific Research Abstract Indium, and indium-bearing alloys, are components found in a series of electronic devices of widespread use; at the end of this useful life, and due to its price and scarcity, the recovery of this element, from these devices, is of interest. Hydrometallurgical processing can be a solution to match this issue. Keywords: Indium; E-Wastes; Recovery; Hydrometallurgy; Urban mining Introduction Indium is a metal presenting some special features, alone or combined with Indium Tin Oxide (ITO), which made of it a unique component in a series of electronic equipment’s. Indium Tin Oxide (ITO, or tin-doped indium oxide) is a mixture of indium (III) oxide (In2O3) and tin (IV) oxide (SnO2), typically 90% In2O3, 10% SnO2 by weight. It is transparent and colorless when deposited as a thin film at thicknesses of 1000-3000 angstroms. When deposited as a thin film on glass or clear plastic it functions as a ...