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Therefore cholesterol lowering foods beans buy atorlip-20 20mg amex, removal of the excess fluid as well as plasma proteins that diffuse into the interstitial spaces by lymphatic system is essential. Therefore, the physiological function of the lymphatic system is to maintain a negative interstitial pressure by removing any excess fluid and plasma proteins. Toxic insults to the lymphatic system can lead to elevated interstitial pressures and subsequent tissue edema. Capillaries and Microcirculation Capillaries directly connect to the distal portion of the arterioles serving as the communication site between blood and tissues, and constitute the major part of the microcirculation where nutrients, water, gases, hormones, cytokines, and waste products are exchanged between blood and tissues. In other parts of the vascular system, blood is separated from tissues by the walls of arterial and venous vessels. The passage of molecules through the capillary wall can occur both between and through the endothelial cells. Lipid-soluble molecules such as oxygen and carbon dioxide readily pass through the endothelial cell membranes. The other pathway for water-soluble molecules is the cell membrane vesicle formation via pinocytosis (inward) and exocytosis (outward) on both the luminal and the tissue side of the capillary wall. The endothelial cells are targets of xenobiotics, whose effects can be measured by accumulation of toxic metabolites in the target organs and the pathophysiological changes in the microcirculation. In general, there is some capillary reserve in tissues so that a particular area of a tissue can be perfused by more than one capillary, but not all of the capillaries open up at any given time. This capillary reserve serves two important functions: one is to meet the increase in metabolic demands. Under the condition that metabolic demands increase, more capillaries can open up. For instance, if an occlusion occurs due to a thrombus, capillaries in close proximity can open to provide perfusion to the vulnerable area. However, in the brain, this capillary reserve appears absent so that any occlusion may result in damage. Regulatory Mechanisms of the Vascular System the vascular system includes conduits and microcirculation. This system under physiological conditions is regulated by the demands of tissue metabolism. The mechanisms controlling vascular physiology can be divided into neural, hormonal, and local controls. However, this categorization is artificial because the performance of the vascular system at any given time is the result of the integration of all three controlling mechanisms, and each of the three mechanisms affects the other two. The controlling mechanisms can be divided into remote or systemic, and local regulation. Neurohormonal Regulation Most arteries, arterioles, venules, and veins, with the exception of those of the external genitalia, receive sympathetic innervation only. These receptors are distributed to vascular smooth muscle cells, and activation of the receptors leads to contraction of the vascular smooth muscle and thus the constriction of blood vessels. There are also 2 -adrenergic receptors in vascular smooth muscle cells, to which binds the circulating epinephrine released from the adrenal medulla. Activation of the 2 -adrenergic receptors leads to vascular smooth muscle relaxation and vasodilation. In addition, the blood vessels of skeletal muscles receive sympathetic cholinergic innervation in addition to their sympathetic adrenergic innervation, whose activation leads to vascular smooth muscle relaxation and vasodilation. Interactions between the central and autonomic nerves take place in the spinal cord, medulla, and hypothalamus. These central nervous regulations are reviewed in many physiology textbooks and not covered in this chapter. During the activation of the sympathetic nervous system, the adrenal medulla releases epinephrine (>90%) and norepinephrine (<10%) into the blood. As discussed above, the increase in circulating epinephrine activates the 2 -adrenergic receptors localized in the coronary and skeletal muscle arteries leading to vascular smooth muscle relaxation and vasodilation. The renin­angiotensin­aldosterone system is critically involved in the regulation of blood pressure and volume.

Indeed cholesterol use in body generic atorlip-20 20mg online, given the complexity of embryogenesis and the multiple mechanisms and target sites of potential teratogens, it was perhaps unrealistic to have expected a single test, or even a small battery, to accurately prescreen the activity of chemicals in general. To date, their primary success has come from evaluating the relative potency of series of congeners when the prototype chemical has demonstrated appropriate concordance with in vivo results (Kavlock, 1993). Over the past several years, a validation study of three in vitro embryotoxicity assays, the rat embryo limb bud micromass assay, the mouse embryonic stem cell test, and the rat embryo culture test, has been carried out (Genschow et al. This study involves interlaboratory blind trials to validate these assays, and the approach involves the development of "prediction models" which mathematically combine assay endpoints to determine which combinations and formulations are most predictive of mammalian in vivo results. Submammalian species have been used for many years in the study of normal developmental biology, and among these animal models, the African clawed frog, Xenopus laevis or X. Chief among the features of these species is the rapid external development of the embryos, the large historical and recent literature on their normal development, and the availability of genetic mutants and molecular biological tools for studying these embryos. In addition, they can be bred to produce large numbers of embryos in a relatively short period and are easy and inexpensive to maintain. Important to the consideration of all these alternative test models is the application of new genomic and proteomic screening approaches, especially those amenable to high throughput screening. These techniques offer for the future the potential to develop highly automated, rapid, and specific tests for developmental toxicity. An exception to the limited acceptance to date of alternate tests for prescreening for developmental toxicity is the in vivo test developed by Chernoff and Kavlock (1982). In this test, pregnant Multigeneration Tests Information pertaining to developmental toxicity can also be obtained from studies in which animals are exposed to the test substance continuously over one or more generations. This report, along with the report from the International Life Sciences Institute entitled "Similarities and Differences between Children and Adults" (Guzelian et al. On the other hand, proponents applaud the measure and point to the numerous factors that may increase the exposure of infants and children to environmental toxicants and their susceptibility to harm from these exposures. Children have different diets than adults and also have activity patterns that change their exposure profile compared to adults, such as crawling on the floor or ground, putting their hands and foreign objects in their mouths, and raising dust and dirt during play. In addition to exposure differences, children are growing and developing, which makes them more susceptible to some types of insults. Effects of early childhood exposure, including neurobehavioral effects and cancer, may not be apparent until later in life. Debate continues over the approach to be used in risk assessment in consideration of infants and children. For this longitudinal birth cohort, families would be identified and children followed from before birth through 21 years of age. Endpoints include cellular aggregation, growth, differentiation, and biochemical markers. Adult flies examined for specific structural defects (bent bristles and notched wing). Mid-blastula stage Xenopus embryos exposed for 96 h and evaluated for viability, growth, morphology. Postimplantation rodent embryos grown in vitro for up to two days and evaluated for growth and development. Zebrafish eggs or blastulae exposed to chemical in water (can be in multi-well plates) for up to four days and evaluated for growth, development and (in some cases) gene expression. Accuracy: correct classification of test agents as non-, weakly, or strongly teratogenic. It has proven reliable over a large number of chemical agents and classes (Hardin et al. Epidemiology Reproductive epidemiology is the study of associations between specific exposures of the father or pregnant woman and her conceptus and the outcome of pregnancy. In rare situations, such as rubella, thalidomide, and isotretinoin, where a relatively high risk exists and the outcome is a rare event, formal studies may not be needed to identify causes of abnormal birth outcomes. The likelihood of linking a particular exposure with a series of case reports increases with the rarity of the defect, the rarity of the exposure in the population, a small source population, a short time span for study, and biological plausibility for the association (Khoury et al. In other situations, such as those with ethanol and valproic acid, associations are sought through either a case-control or a cohort approach.

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Responding to Emergencies 339 Heat-Related Illnesses and Cold-Related Emergencies Take medications to eliminate water from the body (diuretics) cholesterol levels child order atorlip-20 toronto. Diuretics increase the risk of dehydration, which causes an increase in core body temperature by preventing adequate blood flow to remove excess heat. Consume other substances that have a diuretic effect, such as fluids containing caffeine, alcohol or carbonation. Do not maintain adequate hydration by drinking enough water to counteract the loss of fluids through perspiration, exertion, or exposure to heat and humidity. Live in a situation or environment that does not provide them with enough heating or cooling, depending on the season. People usually seek relief from an extreme temperature before they begin to feel ill. Athletes and those who work outdoors often keep working even after they develop the first indications of illness. Heat-related illnesses and cold-related emergencies occur more frequently among older adults, especially those living in poorly ventilated or poorly insulated buildings or buildings with poor heating or cooling systems. Young children and people with health problems are also at risk because their bodies do not respond as effectively to temperature extremes. Types of Heat-Related Illnesses Exercise-associated muscle cramps, exertional heat exhaustion and heat stroke are conditions caused by overexposure to heat and/or loss of fluids and electrolytes. Heat-related illness, if not cared for promptly, can get progressively worse in a very short period of time. By recognizing the signs and symptoms of the early stages of heat-related illness and responding appropriately, you may be able to prevent the condition from becoming life threatening. The people at highest risk for dying from dehydration are the very young and the very old. Lay responders can measure dehydration levels by monitoring urine color before, during and after a period of heavy work or exercise. Signs and Symptoms of Dehydration the signs and symptoms of dehydration worsen as the body becomes drier. As dehydration worsens, signs and symptoms can include: Disorientation or delirium. Responding to Emergencies 340 Heat-Related Illnesses and Cold-Related Emergencies Dry skin that does not spring back if pinched, creating a "tenting" effect. Care for Dehydration To care for a person who is dehydrated, you need to help them replace the lost fluid. If the person is still awake and able to swallow, encourage them to drink small amounts of a commercial sports drink or, if not available, water. However, do not let the person gulp the fluid down; instead, have them sip it at a slow pace. If dehydration is severe, the person will likely need more advanced medical care to receive fluids intravenously. Exercise-Associated Muscle Cramps the exact cause of exercise-associated muscle cramps is not known, although it is believed to be a combination of loss of fluid and salt from heavy sweating. Exercise-associated muscle cramps develop fairly rapidly and usually occur after heavy exercise or work in warm or even moderate temperatures. Signs and Symptoms of Exercise-Associated Muscle Cramps Exercise-associated muscle cramps are painful spasms of skeletal muscles. While they usually affect the legs, arms and abdomen, they can occur in any voluntary muscle. Care for Exercise-Associated Muscle Cramps To care for exercise-associated muscle cramps: Help the person move to a cool place to rest. Give an electrolyte- and carbohydratecontaining fluid such as a commercial sports drink, fruit juice or milk. When cramps stop, the person usually can start activity again if there are no other signs or symptoms of illness. Resting, lightly stretching and massaging the affected muscle, and replenishing fluids are usually enough for the body to recover from exercise-associated muscle cramps. Responding to Emergencies 341 Heat-Related Illnesses and Cold-Related Emergencies What if. Rest, cooling off and drinking an electrolyte-carbohydrate fluid, such as a commercial sports drink, fruit juice or milk, is typically the only care needed for exercise-associated muscle cramps. When exercising heavily in hot and humid conditions in which a person is losing a lot of salt through sweat, however, extra sodium from food intake or rehydration beverages (or both) may be required.

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In hepatocytes cholesterol medication breastfeeding buy cheap atorlip-20 line, the active initiator caspase cleaves Bid, a member of the Bcl-2 family of proteins, and the truncated Bid (tBid) translocates together with other Bcl-2 family members such as Bax to the mitochondria. In addition to downstream substrates, caspase-3 can also process more procaspase-8 and further amplify the apoptotic signal. Inhibitor studies and experiments with gene-deficient mice support the hypothesis that only the amplification of the receptor-derived signal through multiple mitochondrial cycles can successfully induce apoptosis in hepatocytes (Yin et al. Thus, mitochondria are an indispensable part of the extrinsic (receptor-mediated) apoptotic signal transduction pathway in liver cells. Despite the upstream differences, the postmitochondrial effects are largely similar to the extrinsic pathway. This protein acts as transcription factor to promote the formation of pro-apoptotic Bcl-2 family members. An intrinsic mechanism of apoptosis has been discussed for cell death in aging livers (Zhang et al. The dramatically increased knowledge of the signaling mechanisms of apoptotic cell death in hepatocytes lead to the identification of many biochemical "apoptosis" parameters, most of which turned out to be not as specific for apoptosis as originally thought. Originally thought to specifically identify apoptotic cells, both assays are positive for most mechanisms of necrotic cell death (Grasl-Kraupp et al. As a result of the misinterpretation of many of these assays, the contribution of apoptosis to the overall pathophysiology processes and toxicological liver injuries is controversially debated (Jaeschke and Lemasters, 2003; Jaeschke et al. However, the controversy can be avoided if the decision to label the process as apoptosis is based primarily on the morphological features of the dying cells. Because the characteristic morphology is caused by the caspase-mediated cleavage of structural proteins within the cell, relevant caspase activation, especially of downstream effector caspases such as caspase-3 or -6, is another hallmark of apoptosis. As a result, pancaspase inhibitors can effectively prevent apoptosis-induced liver injury in vivo and in isolated hepatocytes. Once the process is identified as apoptosis, additional parameters can be used to further characterize the signaling mechanism. For example, both the antidiabetic drug troglitazone and the analgesic acetaminophen clearly induce apoptosis in hepatoma cell lines (Yamamoto et al. However, there is no evidence for a relevant role of apoptotic cell death in animals or patients for both drugs (Gujral et al. Thus, characterization of cell death after chemical exposure has to be primarily based on morphology and a number of additional biochemical parameters, which need to quantitatively correlate with the number of apoptotic cells. In addition, the relevance of the model system for the human pathophysiology needs to be considered. The mechanisms of oncotic necrosis are more diverse and depend on the chemical insult to the cell (a detailed example of the mechanism of acetaminophen-induced hepatocellular necrosis is discussed later). Independent of the initial insult and signaling pathways, mitochondria are almost always involved in the pathophysiology. Canalicular Cholestasis this form of liver dysfunction is defined physiologically as a decrease in the volume of bile formed or an impaired secretion of specific solutes into bile. Cholestasis is characterized biochemically by elevated serum levels of compounds normally concentrated in bile, particularly bile salts and bilirubin. When biliary excretion of the yellowish bilirubin pigment is impaired, this pigment accumulates in skin and eyes, producing jaundice, and spills into urine, which becomes bright yellow or dark brown. Because drug-induced jaundice reflects a more generalized liver dysfunction, it is considered a more serious warning sign in clinical trials than mild elevations of liver enzymes (Zimmerman, 1999). The histologic features of cholestasis can be very subtle and difficult to detect without ultrastructural studies. Structural changes include dilation of the bile canaliculus and the presence of bile plugs in bile ducts and canaliculi. Toxicant-induced cholestasis can be transient or chronic; when substantial, it is associated with cell swelling, cell death, and inflammation. Many different types of chemicals, including metals, hormones, and drugs, cause cholestasis (Table 13-2) (Zimmerman, 1999). The molecular mechanisms of cholestasis are related to expression and function of transporter systems in the basolateral and canalicular membranes (reviewed by Pauli-Magnus and Meier, 2006). In principle, an increased hepatic uptake, decreased biliary excretion, and increased biliary reabsorption (cholehepatic shunting) of a drug may contribute to its accumulation in the liver. A substantial inhibition of bile salt excretion can lead to accumulation of these compounds in hepatocytes and may directly cause cell injury (Palmeira and Rolo, 2004).

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The extrapolation can be done with a linear model or a nonlinear model with this choice dependent on the amount and type of experimental data available cholesterol chart nz order atorlip-20 us. Risk estimates using the linear model (biological response increases proportionally with level of exposure) are higher that nonlinear models where the biological response does not vary proportionally with the dose. Two general types of dose­response models exist for extrapolation: statistical (or probability distribution models) and mechanistic models (Krewski and Van Ryzin, 1981). The distribution models are based on the assumption that each individual has a tolerance level for a test chemical and that this response level is a variable following a specific probability distribution function. These responses can Models Derived from Mechanistic Assumptions this modeling approach designs a mathematical equation to describe dose­response relationships that are consistent with postulated biological mechanisms of response. These models are based on the idea that a response (toxic effect) in a particular biological unit (animal, human, pup, etc. Radiation research has spawned a series of such "hit models" for cancer modeling, where a hit is defined as a critical cellular event that must occur before a toxic effect is produced. The simplest mechanistic model is the one-hit (one-stage) linear model in which only one hit or critical cellular interaction is required for a cell to be altered. For example, based on somatic mutation theory, a single mutational change would be sufficient for a cell to become cancerous through a transformational event and dose-independent clonal expansion. The probability statement for these models is P(d) = 1 - exp(-d), where d equals the number of hits occurring during a time period. A single molecule of a genotoxic carcinogen would have a minute but finite chance of causing a mutational event. As theories of cancer have grown in complexity, so too have these hit-based mechanistic models. Multihit models have been developed that can describe hypothesized single-target multihit events, as well as multitarget, multihit events in carcinogenesis. The probability statements for these models is P(d) = d k-1 exp(-x)/ (k)d x, where (k) denotes the gamma function with k = critical number of hits for the adverse response. The Weibull model has a dose­response function with characteristics similar to those of the multihit models, where the response equation is P(d) = 1 - exp[-dk]. Armitage and Doll (1957) developed a multistage model for carcinogenesis that was based on these equations and on the hypothesis that a series of ordered stages was required before a cell could undergo mutation, initiation, transformation, and progression to form a tumor. Within the risk assessment process, a critical early step is the identification of the exposure pathway(s). To fully characterize exposure, the site-specific and chemical-specific exposure pathways must be identified. This hypothetical exposure pathway schematic illustrated the various ways in which contaminants can move from the source through media to points of exposure. To obtain an upper 95% confidence interval on risk, the q1 value (risk/ dose in mg/kg/day) is multiplied by the amount of exposure (mg/kg/day). Toxicologic Enhancements of the Models Three exemplary areas of research that have improved the models used in risk extrapolation are time to tumor information, physiologically based toxicokinetic modeling, and biologically based dose­response modeling (Albert, 1994). Chapter 7 discusses in detail improvements in our estimation of exposure and offers approaches on how to model "target internal effective dose" in risk assessment rather than just using single-value "external exposure doses. Measured rates are incorporated into the mechanistic equations to replace default or computer-generated values. This exposure estimate is multiplied by the bioavailability of arsenic in soil to calculate the dose. In this example, the soil concentration, ingestion rate, exposure duration and frequency, body weight, and bioavailability are modeled as distributions. This model has been applied effectively to human epidemiologic data on retinoblastoma. Development of biologically based dose­response models for endpoints other than cancer are limited; however, several approaches have been explored in developmental toxicity, utilizing mode of action information on cell cycle kinetics, enzyme activity, and cytotoxicity as critical endpoints (Faustman et al. Approaches have been proposed that link pregnancy-specific toxicokinetic models with temporally sensitive toxicodynamic models for developmental impacts (Faustman et al. It is an analysis and integration of the conclusions from the hazard assessment, the dose­response, and the exposure assessment. For many years there has been an information-sharing process aimed at harmonization of chemical testing regimes and clinical trials methodologies, so that data might be accepted in multiple countries. Variation in Susceptibility Risk assessment methodologies incorporating human variability have been slow to develop.

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About the Security Industries Authority Staff

The Security Industies Authority is headed by a Registrar as the CEO and has thirteen (13) other staff members from all four (4) regions of the country working under him. These includes the Manager Finance and Administration, Manager Licensing and Compliance and four (4) Regional inspectors(MOMASE, Islands, Highland and Southern).

The Inspectors job are very challenging because they are at the front line of enforcement to ensure that private security companies are compliant with the provisions of the Security Protection Act to operate a security company. Most of them are former officers of the Royal PNG Constabulary. Apart from them we also have a efficient staff made up of the Executive Secretary, Accounts Officer, HR Officer , I.T Officer & an Office Janitor in Head Office Port Moresby while Admin Assistance/ Driver and an Office Admin/ Reception in Lae Momase & Highlands Region branch office.

Staff Profiles


Mr. Paul Kingston Isari

Registrar & CEO of PNG Security Industries Authority


Mr. Philip Gene, BAC, CPA PNG

Manager Finance & Administration


Mr. Spencer Gelo

Manager Licencing & Compliance

POM Office Staff

Front left – right Ms Margaret Biskum- Security Inspector New Guinea Islands, Ms Alicia Nana – Executive Secretary & Mrs Mackey Kembi Office Janitor

Back left – right Mr. Rinson Ngale – Security Inspector NCD/Southern Region, Mr. Emmanuel Tumbe HR Officer, Mr. Elijah Fave – Accounts Officer, Mr. Andrew Kaiap – I.T Officer


Lae Office Staff

Front left – right Ms Nelison Roberts – Office Secretary / Reception , Mr. Elvis Otare – Office Admin Assistance / Driver & Acting Momase Region Inspector

Back left – right Vacant – Office Manager & Security Inspector Momase Region, Mr. Pius Moi – Acting Office Manager Security Inspector Highlands Region

Security Industries Authority organizational chart


Vacancies for Council Representatives from the Security
Industry to sit in the Council

The Security Industries Authority currently does not have any vacant Council Representative position. There in total six (6) nominated representative from Security Industries in the council.(see SIA Council)

Qualified candidates will be made known here if there is a vacant in Council Representative positions.

Security Industries Authority Position Vacancies

SIA Currently has no vacancy positions available. Public will be notified for any positions available in the future.

Criteria for appointment to the Security Industries Council

  1. The candidates must have a sound knowledge in the operations of private security companies and are quite versed with the Security Protection Act 2004.
  2. The candidates shall not be currently employed in any licensed security companies that are currently registered with the Security Industries Authority or were not previously employed by any licensed security companies.
  3. The candidates shall not be a current owner or a shareholder of a licensed security company currently registered with the Security Industries Authority and the IPA (Investment promotion Authority).
  4. The candidates shall not be a previous owner or a shareholder of a licensed security company registered with the Security Industries Authority or with the IPA. (Investment promotion Authority).
  5. Interested persons may submit their application with a CV with three (3) references named and attached with their latest passport size photos.
  6. Both male and females are encouraged to participate.
  7. Only registered security companies and permitted security guards will participate in the nominations.
  8. All candidates shall be subjected to a fit and proper persons test before they are formally appointed for 3 years term by the Minister for Police & Internal Security.

For enquiries on this matter

Visit us at the Top floor of the Former Fraud Squad blue building, Gorobe Street, Badili, 2 Mile, Port Moresby NCD or Lae at Post Office Building, second street, top floor, suite # 14, Lae Morobe Province or write to the Chairman Security Industries Council PO BOX 80 Port Moresby National capital District. You can also contact Manager Licensing & Compliance – Mr. Spencer Gelo on telephone 3239851 / 3257930, or email executivesecretary@sia.gov.pg

Invitation to the Stake Holders and the Industry to make a submission on the amendments to current security Protection Act

The Registrar now invites all the registered security companies, service receivers and interested stake holders for their written submission to amend the current Security Protection Act to cover many grey areas of the law.

The submissions should clearly state what provisions of the current Security Protection Act 2004 and the Security Protection regulation 2012 are to be amended to enhance the growth of the industry. This is necessary in light of numerous complaints from the security companies and interested stake holders of the short falls in the current Act which is said to be hindering the growth of the industry.

All submissions must be dropped at The Authority Head Office: Former Fraud Squad Office, Top Floor, Gorobe Street, 2 Mile Drive, Badili,Boroko NCD in Port Moresby. They can also be posted or emailed using the address on the last page. Copies of the current Security Protection Act 2004 can be obtained at the Security Industries Authority office for K35 to use as a guide to prepare the submissions.

Appointment to the Board of Complaints

The Security Industries Authority in compliance with section 57 of the Security Protection Act 2004 has already advertised in the media in early February 2013 seeking for two (2) interested persons to sit on the Board of Complaints.

The purposes of the Board of Complaints is to hear allegations made against licensed security companies by the general public and to award appropriate disciplinary penalties to protect the integrity of the security industry. Several applications have already been received and the short listed candidates will be advised in writing by the chairman shortly before a final selection is made for their three (3) yeas appointments by the Minister for Police and Internal Security.