IGCSE Biology - Cambridge International Examinations
... The syllabus content has been revised and updated to modernise and improve the relevance of the syllabus. The wording of some learning outcomes has been changed for clarification. Some material has been reordered, removed, moved between sections, or reclassified as either Core or Supplement material ...
... The syllabus content has been revised and updated to modernise and improve the relevance of the syllabus. The wording of some learning outcomes has been changed for clarification. Some material has been reordered, removed, moved between sections, or reclassified as either Core or Supplement material ...
F
... global concern since wild ungulates are becoming more abundant and widely distributed throughout Europe, even in urban areas. In parallel, in the European Union some food‐borne zoonoses are increasing in frequency each year. To compound these factors, antimicrobial resistanc ...
... global concern since wild ungulates are becoming more abundant and widely distributed throughout Europe, even in urban areas. In parallel, in the European Union some food‐borne zoonoses are increasing in frequency each year. To compound these factors, antimicrobial resistanc ...
CFREP - QTR Review Presentation Template
... ineffective in challenge water for reducing pathogens from FF&V • Pretreating samples with phage prior to the wash process resulted in an additive effect and had the best overall reduction of pathogens present on the FF&V samples • This study demonstrated an effective 2-step process for sanitizing F ...
... ineffective in challenge water for reducing pathogens from FF&V • Pretreating samples with phage prior to the wash process resulted in an additive effect and had the best overall reduction of pathogens present on the FF&V samples • This study demonstrated an effective 2-step process for sanitizing F ...
The Pituitary Gland
... The pituitary gland is a gland in the brain which produces chemicals called hormones (an endocrine gland). Hormones are chemical messengers which help different organs in the body communicate with each other. The pituitary gland is one part of a messenger system. The pituitary gland helps to control ...
... The pituitary gland is a gland in the brain which produces chemicals called hormones (an endocrine gland). Hormones are chemical messengers which help different organs in the body communicate with each other. The pituitary gland is one part of a messenger system. The pituitary gland helps to control ...
Foodsafe - Homestead
... transportation of Time/Temperature Controlled for Safety (TCS) Foods (formally known as Potentially Hazardous Food). The relationship between foodborne illness and control of: cross-contamination, bare hand contact with Ready-To-Eat foods, and hand washing. The correct procedures for cleaning and sa ...
... transportation of Time/Temperature Controlled for Safety (TCS) Foods (formally known as Potentially Hazardous Food). The relationship between foodborne illness and control of: cross-contamination, bare hand contact with Ready-To-Eat foods, and hand washing. The correct procedures for cleaning and sa ...
as a PDF
... described (23), with the Approved List of Bacterial Names currently containing less than 3,500 entries. Since the classic species concept for higher organisms applies only to organisms with sexual reproduction, it is very difficult to estimate the number of extant microbial species. For lack of a be ...
... described (23), with the Approved List of Bacterial Names currently containing less than 3,500 entries. Since the classic species concept for higher organisms applies only to organisms with sexual reproduction, it is very difficult to estimate the number of extant microbial species. For lack of a be ...
Ag Professional Biological - FMC Agricultural Solutions
... Tylka said he sees great promise in the microbiome, but it’s going to take significant research to learn what the microbes do in the soil and how we can use that to promote crop growth. “There’s more that we don’t know about the soil and its microbes, than what we do know. Its viewed scientifically ...
... Tylka said he sees great promise in the microbiome, but it’s going to take significant research to learn what the microbes do in the soil and how we can use that to promote crop growth. “There’s more that we don’t know about the soil and its microbes, than what we do know. Its viewed scientifically ...
Inducer expulsion and the occurrence of an HPr(Ser-P)
... mechanism of inducer expulsion, its potential for catalysing the expulsion of pre-accumulated cytoplasmic sugar-Ps has not been tested. All of these Gram-positive bacteria and others are known to possess H P r and the HPr(Ser) kinase (Reizer e t al., 1988). In this paper we report comparative studie ...
... mechanism of inducer expulsion, its potential for catalysing the expulsion of pre-accumulated cytoplasmic sugar-Ps has not been tested. All of these Gram-positive bacteria and others are known to possess H P r and the HPr(Ser) kinase (Reizer e t al., 1988). In this paper we report comparative studie ...
The Escherichia coli CRISPR System Protects from Lysogenization
... fices valuable resources by reducing its contact with the bacterial population in order to prevent viral spread. Our results fit very well with a recent study showing that self-targeting spacers having homologies to genomic sequences, be they prophages or other chromosomal elements, are not evolutio ...
... fices valuable resources by reducing its contact with the bacterial population in order to prevent viral spread. Our results fit very well with a recent study showing that self-targeting spacers having homologies to genomic sequences, be they prophages or other chromosomal elements, are not evolutio ...
Loss of outer membrane porins in clonally related clinical isolates of
... the isolates were deficient in both porins26. Another study using 57 carbapenem resistant isolates (KPC) showed that dual porin loss acted synergistically with carbapenemase to increase resistance17, and a third showed that of 12 KPC producing isolates, there was no detectable expression of OmpK3524 ...
... the isolates were deficient in both porins26. Another study using 57 carbapenem resistant isolates (KPC) showed that dual porin loss acted synergistically with carbapenemase to increase resistance17, and a third showed that of 12 KPC producing isolates, there was no detectable expression of OmpK3524 ...
N-chlorotaurine, a natural antiseptic with
... of the crystalline sodium salt (Cl-HN-CH2-CH2-SO3Na, NCT) facilitated its development as an endogenous antiseptic. NCT can be stored long-term at low temperatures, and it has killing activity against bacteria, fungi, viruses and parasites. Transfer of the active chlorine to amino groups of molecules ...
... of the crystalline sodium salt (Cl-HN-CH2-CH2-SO3Na, NCT) facilitated its development as an endogenous antiseptic. NCT can be stored long-term at low temperatures, and it has killing activity against bacteria, fungi, viruses and parasites. Transfer of the active chlorine to amino groups of molecules ...
The Examination
... Instruct client to perform breast self-examination (BSE) monthly If client decides to discontinue contraceptive to become pregnant, recommend alternative form of birth control for 2month period If using patch and it remains off for less than 24 hours, reapply If using patch and it is off longer than ...
... Instruct client to perform breast self-examination (BSE) monthly If client decides to discontinue contraceptive to become pregnant, recommend alternative form of birth control for 2month period If using patch and it remains off for less than 24 hours, reapply If using patch and it is off longer than ...
1. general description - World Health Organization
... exceed 2 µg/l and are commonly well below 0.1 µg/l, although concentrations may be higher in agricultural areas where large amounts of atrazine are used. In the past, its use for weed control on non-crop land, such as railway lines and paved areas, gave rise to contamination of groundwater in partic ...
... exceed 2 µg/l and are commonly well below 0.1 µg/l, although concentrations may be higher in agricultural areas where large amounts of atrazine are used. In the past, its use for weed control on non-crop land, such as railway lines and paved areas, gave rise to contamination of groundwater in partic ...
... Bacterial meningitis is recognized as one of the leading causes of infection-related death, and this disease still continues to be a significant health concern (1). Bacterial meningitis is a fatal and serious infection of the central nervous system (CNS) (2).The underlying pathophysiological mechani ...
Identification and characterization of mutants with increased
... Induction of invasion gene transcription and expression of the invasive phenotype of Salmonella strains are regulated by environmental conditions. Experimental evidence indicates that oxygen, pH, and osmotic conditions need to closely resemble those of the host intestinal lumen for invasion gene act ...
... Induction of invasion gene transcription and expression of the invasive phenotype of Salmonella strains are regulated by environmental conditions. Experimental evidence indicates that oxygen, pH, and osmotic conditions need to closely resemble those of the host intestinal lumen for invasion gene act ...
Doxycycline (Systemic)
... Active only against the asexual erythrocytic forms of Plasmodium (not exoerythrocytic stages) and cannot prevent delayed primary attacks or relapse of P. ovale or P. vivax malaria or provide a radical cure; primaquine usually also indicated to eradicate hypnozoites and prevent relapse in patients ex ...
... Active only against the asexual erythrocytic forms of Plasmodium (not exoerythrocytic stages) and cannot prevent delayed primary attacks or relapse of P. ovale or P. vivax malaria or provide a radical cure; primaquine usually also indicated to eradicate hypnozoites and prevent relapse in patients ex ...
PDF Links - The Korean Journal of Parasitology
... evidenced the L3a genotype. There is as yet no direct evidence that the L3a genotype has better biological conditions for the establishment of bacterial symbiosis. Genomic and proteomic approaches to determine the differences between L3a and the other genotypes might provide the necessary clues to u ...
... evidenced the L3a genotype. There is as yet no direct evidence that the L3a genotype has better biological conditions for the establishment of bacterial symbiosis. Genomic and proteomic approaches to determine the differences between L3a and the other genotypes might provide the necessary clues to u ...
2019 Syllabus - Cambridge International Examinations
... • increase their understanding of the technological world • take an informed interest in scientific matters • recognise the usefulness (and limitations) of scientific method, and how to apply this to other disciplines and in everyday life • develop relevant attitudes, such as a concern for accur ...
... • increase their understanding of the technological world • take an informed interest in scientific matters • recognise the usefulness (and limitations) of scientific method, and how to apply this to other disciplines and in everyday life • develop relevant attitudes, such as a concern for accur ...
Microbiology and Wine Preventive care and monitoring in
... These microbes do not affect the taste or smell of the wine. Nevertheless, they can contribute to the degradation of free SO2, which may affect the stability of the wine if they are present in large numbers. These microbes include: – Water bacteria that are transmitted via water used for washing and ...
... These microbes do not affect the taste or smell of the wine. Nevertheless, they can contribute to the degradation of free SO2, which may affect the stability of the wine if they are present in large numbers. These microbes include: – Water bacteria that are transmitted via water used for washing and ...
Aquatic Insect Ecology
... also may exhibit pronounced diel temperature fluctuations, especially on sunny days. Shallow unshaded wetlands also exhibit large diel temperature fluctuations, ranging from subfreezing to tepid in northern wetlands. Thus, temperature variation imposes fundamental constraints on insect life historie ...
... also may exhibit pronounced diel temperature fluctuations, especially on sunny days. Shallow unshaded wetlands also exhibit large diel temperature fluctuations, ranging from subfreezing to tepid in northern wetlands. Thus, temperature variation imposes fundamental constraints on insect life historie ...
Bacterial survival in evaporating deposited droplets on a
... droplet evaporation process was not recorded because of the high evaporation rate of small atomized droplets, most of which are less than 10 2m and would totally evaporate within a second. The evaporation process was not taken into account by the kinetic model developed by Cox (1987). During the eva ...
... droplet evaporation process was not recorded because of the high evaporation rate of small atomized droplets, most of which are less than 10 2m and would totally evaporate within a second. The evaporation process was not taken into account by the kinetic model developed by Cox (1987). During the eva ...
TNO Presentation
... • Air plasma: O, O2*, O3, OH, NO, NO2, etc. • Radicals chemically attack the walls, coats, and membranes of cells of microorganisms • Radicals may even remove killed bacteria and their debris ...
... • Air plasma: O, O2*, O3, OH, NO, NO2, etc. • Radicals chemically attack the walls, coats, and membranes of cells of microorganisms • Radicals may even remove killed bacteria and their debris ...
Endocrine Anatomy and Physiology
... management of the deviant hormone by either reducing or increasing its production or secretion from its associated endocrine gland. A thorough understanding of the endocrine system and how it functions is necessary in accurately assessing and treating endocrine disorders. Major Endocrine Organs ...
... management of the deviant hormone by either reducing or increasing its production or secretion from its associated endocrine gland. A thorough understanding of the endocrine system and how it functions is necessary in accurately assessing and treating endocrine disorders. Major Endocrine Organs ...
LAB MANUAL for BIOL 2420 - IWS2.collin.edu
... Biosafety Level 1 organisms are defined as well-characterized strains of microorganisms not known to cause disease in healthy human adults. Precautions in BSL-1 labs include general lab safety rules such as no eating or drinking, prohibition of mouth pipetting, practicing aseptic technique, and prop ...
... Biosafety Level 1 organisms are defined as well-characterized strains of microorganisms not known to cause disease in healthy human adults. Precautions in BSL-1 labs include general lab safety rules such as no eating or drinking, prohibition of mouth pipetting, practicing aseptic technique, and prop ...
Triclocarban
Triclocarban is an antibacterial agent common in personal care products like soaps and lotions as well as in the medical field, for which it was originally developed. Studies on its antibacterial qualities and mechanisms are growing. Research suggests that it is similar in its mechanism to triclosan and is effective in fighting infections by targeting the growth of bacteria such as Staphylococcus aureus. Additional research seeks to understand its potential for causing antibacterial resistance and its effects on organismal and environmental health.