Essays on Microbial

Is Hand washing more effective in Infection Reduction versus Gel Hand Sanitizers?

Is Hand washing more effective in Infection Reduction versus Gel Hand Sanitizers?

Introduction

Today, the burden of health care-associated infections (HCAIs) are drawing attention not only from governments and health care regulatory bodies but also from patients and more so from health care practitioners (HCPs) themselves. This phenomenon is not merely because of the magnitude of the problem regarding the associated incidences of mortality, cost, and complexity of treatment, and morbidity, but also due to the growing recognition and understanding that, most of these complications are preventable. The medical fraternity is thus witnessing in tandem unprecedented improvements in the spread ...

DNA in Forensic Science

Forensic Science deals with investigations of suspects or criminals in crime scenes legally. In most cases, there are usually a lot of people involved in crime scenes. Some of them being innocent while some are the criminals. Also, there may be one criminal involved in an incidence. In Forensic Science, DNA is used to differentiate the individuals so that the criminal among them can be known. Additionally, DNA analysis is performed in the paternity testing. It enables the determination of a parent or parents of a child. DNA analysis is now being regarded as scientific evidence ("Application of forensic ...

3-nitrooxypropanol Report

Introduction Sheep, cattle, goats, and some wild animals such as antelopes and their families that are predominantly known as ruminants ferment plant material in their rumen. The result of this fermentation process is the formation of propionate, CO2, acetate, butyrate, and methane (Alexander et al., 2015). The carbon dioxide and methane formed escape from the bodies of these animals into the atmosphere.3-nitrooxypropanol is believed to inhibit methanogenesis in ruminant, an action that has various applications and benefits to the environment and animals. This report will consider the need for and application of the 3-nitrooxypropanol and how it would work ...

Introduction

Microbiology is a fundamental branch of medical science from which the discovery and treatment of various microbial causing diseases takes place. In terms of practice, Obstetrics and Gynecology are unified aspects of medical specialty that deals with management of pregnancy and care of female reproductive health. With the two concepts employed, more sophisticated women’s health issues can be effectively addressed. The role of microbiology in OB/GYN practice includes detection, prevention, and treatment of several bacterial infections among women including the common ones such as Trichomonas vaginalis and Chlamydia Trachomatis. These bacterial infections do not often manifest in symptoms ...

The advances in biotechnological field have made it possible to understand the genetic role behind molecular mechanisms to large extents. This in depth understanding of biological processes has paved ways to treat the untreatable aiding the human existence in multitudes of aspects like food, health, bioremediation, mining, biopharmaceutical production and much more. This microbial world is vast and has been a platform for human beings to explore their biological systems as they are simpler cells and can be manipulated with much ease than complex systems. The DNA harnessed within the cells are the molecular entities that have been targeted ...

In addition to the direct physical manifestation of swarm phenotype –increased length and number of flagella, swarm cells often produce wetting agent, usually a surface of some type, for instance, the surface in Serrtia (serrwettins) and Bacillus (surfcatin) (White, 2006). In both cases loss of surfactant dramatically decreases swearing proficiency in Bacillus as well as strains of E. Coli do not make surfactants, which is probably why they are such picky swimmers. Surfactants act mainly to maintain surface wetness, which in turn allows cells to swim in every shallow layer of fluid on the surface. Research findings indicate that ...

Global warming and climate change are two different terms that have been used over the years to describe different phenomena. Global warming refers to a subsequent increase in the global average temperature (Black & Weisel 5). On the other hand, climate change refers to global climate changes due to increasing average global temperatures brought by changes in rain patterns, increased drought and heat waves. These future projections in the change of global rainfall patterns can be derived from the Intergovernmental Panel on Climate Change (IPCC) reports over the years. The argument that the use of term global warming has been ...

Microbial fuel cells are devices that employ bacterial or other microbial cells to generate electricity (Singh, Pratap, Baranwal, Kumar and Chaudhary, 2010). Cells generally carry out electron transfer and oxidation-reduction reactions during normal metabolic activities. Electrons generated during these reactions can be made to flow through an external circuit to generate current. Fig 1. Depicts a typical MFC. The anodic compartment consists of microbial culture in glucose or other medium (Singh et al, 2010). Wastewater can also be used as a substrate source for microbes in a MFC intended for effluent treatment application. The microbial cells breakdown complex substrates ...

Abstract

Handwashing is an important process in controlling microorganism transmission and infectious diseases. The purpose of this experiment was to determine the effectiveness of different antibacterial hand cleaners (soap, alcohol hand sanitizer and ethanol soaked wipes) on killing bacteria. Hands were sampled without cleaning with antibacterial hand cleaner (control), and after cleaning with antibacterial soap, alcohol sanitizer, and ethanol soaked wipes. Samples were taken with a sterile cotton swab and inoculated on agar plates. Each experiment was done three times. Colonies were counted, mean values and standard deviation were calculated, and data was reported. Alcohol and sanitizer and ethanol soaked ...

SCIENTIFIC OPINION ON GUIDANCE ON THE RISK ASSESSMENT OF THE APPLICATION OF NANOSCIENCE AND NANOTECHNOLOGIES IN THE FOOD AND FEED CHAIN

INTRODUCTION

Food and feed can contain of elements that have internal structures that can be measured on the nanoscale for example micelles, liposomes or micelles that occur naturally. Nanomaterials is used to categorize materials according to their size. Application of nanotechnology in agriculture can contribute to improved better pest management and protection of crops through better distribution of the agrochemicals and pesticides, growth agents or hormones. It is also applied in genetic engineering, sensors that are used in monitoring ...

Introduction

In this paper, the article entitled “Lactobacilli and bifidobacteria in the prevention of Antibiotic-associated diarrhoea and Clostridium difficile diarrhoea in older inpatients (PLACIDE): a randomized, double-blind, placebo-controlled, multicentre trial” by Allen, et al., (2013) will be critically reviewed. The article investigates about Antibiotic-associated diarrhoea (AAD) which occurs more often in older patients who are 65 and above and are treated with antibiotics that provide immunity against a wide range of bacterial diseases. Clostridium difficile is a dangerous bacteria which can cause AAD, and it can be very harmful to the patient’s health. The researchers “did a multicentre, ...

Literature review

Section 1: Background Context and rationale for research priorities Lens handling intensifies the incidence of lens contamination. When lens are aseptically removed from the eye, they still have a high probability of harboring microorganisms. During storage, the frequency of positive microbial bioburden remains high than 50%. The presence or movement of microorganisms from the lens to the ocular surface is a route factor for contact lenses related microbial keratitis and inflammation. There is need to priotise research in this area because the results of the studies help people to understand the factors concomitant to infectious and inflammatory complications. When ...

Biotechnology has emerged as a major field few decades back but the art of science behind biotechnology primarily emerged with the discovery of natural process of fermentation by microorganisms. The microscopic world of microbes is diverse and huge as they are of multiple types classified into genus and species based on their morphological, biochemical and genetic abilities. They are helpful as well as harmful to the extremes for humans in many ways. Despite continuous efforts by biologists, their identity has been ambiguous and still a lot is waiting to be explored. Only 0.5% of the microbial world is known ...

Introduction

Recently, worldwide obesity prevalence has been raised rapidly and nearly doubled between 1980 and 2014, however in 2014 more than a half a billion of adult (18 years and older) were obese (11% men and 15% women) (WHO, 2014). Obesity and overweight are defined as excess body fat accumulation that leads to health risks and comorbidities. Adult weight can be classified based on the Body Mass Index. Hence, an individual having a BMI equal to or more than 25 is regarded as being overweight, while a person with a BMI equal to or more than 30 is considered obese ( ...

Dr. 1

Define the term probiotic. (Make sure you include the three components of this definition and use your own words—DO NOT copy the statement from the slide).

Probiotic is a term used to define microorganisms that are believed to have health benefits to humans when consumed.

When did the NIH human microbiome project begin and what were its two major objectives? NIH human microbiome project began in the year 2005. Its two major objectives are to identify microbes present human body and identify their role in human health and disease

Which different mechanisms were suggested through which microbiota may contribute to colorectal cancer?

Microbiome can contribute to colorectal cancer by the production of toxic and genotoxic bacterial metabolites that can lead to mutations by binding specific cell surface receptors and affect ...

QUESTIONS ON BIOCHEMISTRY

Questions on Biochemistry Describe the difference between an obligate and a facultative aerobe. Obligate and facultative aerobes are the same in terms of their ability to use oxygen in their respiration process. However, obligate aerobes requires oxygen to oxidize substrates such as sugar and fat to produce ATP (energy). Obligate aerobes are more efficient in converting substrates to ATP. The key process in aerobic respiration is the conversion of sugar to ATP shown in reaction 1 below:

In the reaction 36 molecules of ATP is produced per molecule of glucose. It is actually a slow process which comprises 3 ...

Infection in cancer patient with febrile neutropenia: epidemiology, microbiology and management

Abstract Febrile neutropenia (FN) is characterised by a decrease in neutrophils number to values below 500 cells/ mm3 and an occurrence of fever higher or similar to 38.3ºC. It commonly occurs in cancer patients as a result of chemotherapy regimens. Chemotherapy destroys carcinogenic cells but also attacks in many cases some normal cells including essential elements of the immune system. Fever is one of the characteristic symptoms of FN and is usually associated with the presence of an infection caused by various microorganisms. Bacteria, including Gram-positive isolates (currently dominating) and Gram-negative species (dominant in the 1970s), are usually ...

The field of microbiology was very limited until the discovery of the microscope, though it did exist in a very practical sense. Though scientists were ultimately wrong about what actually carried and transmitted the plague, for example, they were correct in hypothesizing that it came from an outside source. Between then and now, the microscope was developed, and has been improved upon more and more. Now we have a great classification scheme for prokaryotes (assuming bacteria). It follows the standard domain, kingdom, phylum, class, order, family, genus, and species. The standard for most eukaryotes is also the same for ...

Lab report

Abstract The contemporary microbiology world has witnessed a gradual interest in identifying the types of microbes that are resident in the human body more so due to plausible health benefits they may bring and because of their possible detrimental effects. In this regard, fear of the pathogenic consequences of microorganism in the body has pioneered the advent of hand sanitizers aimed at checking this effect. As a standard procedure in microbiology especially in laboratory experiments, sanitizers are used in eliminating microbes from the surface of the hand. The conducted experiment in this write-up thus aims to analyze the presence ...

The unpredictable changes in climate have a considerable impact on the health of the global population. People need to adjust to the changing weather conditions, and the inability to cope may lead to the development of weather related illnesses and even death. This paper aims to discuss the health concerns that arise due to global climate change, as well as the factors that contributed to the difference in the impact of climate change in the US, UK and China. I. Health Concerns Related to Climate Change a. Expansion of Microbial Pathogens One of the health concerns brought by climate ...

The article “The microbial environment and its influence on asthma prevention in early life” by Erika von Mutius presents and develops the current perspective that contextual factors are key in the development, or inhibition, of this respiratory affection. A microbiome with great diversity leads to a better immune system maturation, counterbalancing the different occasions for the development of this condition. Having a rich mibrobiome may also lead to less allergy-related problems, as both of these respiratory diseases may be fought off against better when there is a diversity of microbes and pathogens in the air, leading to better skin, ...

Part A: Annotated Bibliography

Edberg, S. C. (2015). Microbial Health Risks of Regulated Drinking Waters in the United States—A Comparative Microbial Safety Assessment of Public Water Supplies and Bottled Water. This article examines the differences between tap water and bottled water in the United States of America, especially in regards to safety, regulation, and source. Essentially, the authors underline that there is a significant difference in the quality of tap water and bottled water. Tap water is likely to cause infections when consumed whereas bottled water rarely causes infections. Infections resulting from the ingestion of bottled water are unheard of, and related ...

Abstract

Food safety remains a serious issue in public health. Foodborne disease is the main threat to public health. It occurs when food gets contaminated with pathogens and is then ingested into the body. Food contamination occurs when there is a flaw in the food handling process that allows food to get into contact with the pathogens. Many efforts have been made to deal with food contamination. However, the food industry still faces many challenges some of which are emerging challenges. The dairy sectors are one of the sectors in the food industries facing numerous challenges. Nevertheless, it is one ...

Scientific Report

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Abstract

The experiment was performed to analyze the outcomes of temperature on the ability of fungal and bacterial amylase to breakdown starch to maltose. Therefore, the study will reveal the optimal temperature for amylase activity. The initial steps include preparing the materials and tools used during the experiment. A timetable for comparing temperature and function was generated. Test tubes and plates were properly labeled. Iodine was needed for every spot plate so that the fungal amylase, bacterial amylase, fungal amylase and the starch solution can be added to the iodine in a time and temperature dependent fashion. Observing ...

Introduction:

Corrosion refers to the partial and gradual dissolution of materials used in water treatment and supply systems, pumps, pipes, tanks and valves. In most circumstances, almost all water is corrosive and this may lead to structural failure, water leaks, capacity losses and deterioration of the microbial and chemical water quality (WHO 2011). The pipes used in water distribution are made of different materials such as plastic, metals (galvanized steel, copper, lead and iron), and even concrete. Pipes made from concrete and plastic tend to be corrosion resistant. In piping systems, however, there are several water quality factors working singly ...

Introduction

Approximately 2.5 million individuals in the United States contract pneumonia annually, and 55,000 of those individuals die as a result. In fact, pneumonia was the eighth prominent cause of morbidity and is the number one communicable disease in the United States. Pneumonia is the leading deadly hospital-contracted disease and contributes to a sizable amount of deaths in unindustrialized countries as well. It is a grave illness that can impact individuals in all age groups, but it is especially serious in adolescents, the elderly population, and in people with fundamental medical issues such as ischemia, low blood sugar, and ...