This document discusses human nutrition as it relates to iodine, fluoride, and magnesium. It provides information on the functions, sources, recommended daily amounts, and effects of deficiencies and toxicities for each mineral. Iodine is needed to make thyroid hormones which regulate metabolism. Sources include seafood, bread, and iodized salt. A deficiency can cause goiter or cretinism. Fluoride strengthens teeth and bones. It is found in drinking water and too much can cause dental or skeletal fluorosis. Magnesium is involved in many enzyme systems and is found in vegetables, grains, and dairy. Deficiencies or toxicities of any of these minerals can impact health.
Introduction of Zinc, Zinc Chemistry, Zinc functions, Zinc metabolism , Role in diarrhea , role in wound healing, immunity , hormones , catalytic zinc atom structure zinc atom , zinc enzyme, acrodermatitis enteropathica, toxicity
Introduction of Zinc, Zinc Chemistry, Zinc functions, Zinc metabolism , Role in diarrhea , role in wound healing, immunity , hormones , catalytic zinc atom structure zinc atom , zinc enzyme, acrodermatitis enteropathica, toxicity
Chemistry of Vitamin E, Biochemical role of Vitamin E, Recommended dietary Allowances, Dietary sources of Vitamin E, Deficiency symptoms of vitamin E, Hypervitaminosis of vitamin E, Toxicity of Vitamin E,
The minerals form only a small portion of the total body weight. They form only 7% of the composition of human body.
Many of these minerals are widely distributed in foods so that a well-balanced diet will supply them in sufficient quantities.
The mineral elements present in the animal body may be classified into 2 groups:
1.Principal elements(macro nutrients)
2.Trace elements(micro nutrients)
This presentation shows the importance of having balanced Diet.The importance of having the combination of variety of nutrients.This presentation also describes the different dividions of food and their sources,Carbohydrates,Proteins,Fat,Vitamins and Minerals etc...
This module describes the types of minerals present in food. in nature we have several minerals which are generally classified into two as Major and Minor minerals. it also describes the recommended dietary allowance by ICMR 2020. Here you will be able to find the functions, sources and deficiency of each minerals.
Learning Objectives:
By the end of the session students will be able
To define iodine deficiency
To define goitrogens
To identify sources of iodine
To list Epidemiological assessment of iodine deficiency
To Name International Iodine Control Strategies
To name Iodine Control Program of Pakistan
Chemistry of Vitamin E, Biochemical role of Vitamin E, Recommended dietary Allowances, Dietary sources of Vitamin E, Deficiency symptoms of vitamin E, Hypervitaminosis of vitamin E, Toxicity of Vitamin E,
The minerals form only a small portion of the total body weight. They form only 7% of the composition of human body.
Many of these minerals are widely distributed in foods so that a well-balanced diet will supply them in sufficient quantities.
The mineral elements present in the animal body may be classified into 2 groups:
1.Principal elements(macro nutrients)
2.Trace elements(micro nutrients)
This presentation shows the importance of having balanced Diet.The importance of having the combination of variety of nutrients.This presentation also describes the different dividions of food and their sources,Carbohydrates,Proteins,Fat,Vitamins and Minerals etc...
This module describes the types of minerals present in food. in nature we have several minerals which are generally classified into two as Major and Minor minerals. it also describes the recommended dietary allowance by ICMR 2020. Here you will be able to find the functions, sources and deficiency of each minerals.
Learning Objectives:
By the end of the session students will be able
To define iodine deficiency
To define goitrogens
To identify sources of iodine
To list Epidemiological assessment of iodine deficiency
To Name International Iodine Control Strategies
To name Iodine Control Program of Pakistan
In this, I explain you about the different minerals in our diet. It also helps us moving in proper diet, leading healthy life. Its a starter to parent how to feed the child. It can be useful for the students pursuing home science. This is a basic introduction on foods. Images may not be described but it has a very good brief content which helps for easy understanding
Iodine deficiency is a lack of the trace element iodine, an essential nutrient in the diet. It may result in metabolic problems such as goiter, sometimes as an endemic goiter as well as cretinism due to untreated congenital hypothyroidism, which results in developmental delays and other health problems.
Osteoporosis, Hypothyroidism..... Not Just a Woman's Disease By Ms.Prema Kodical
This is part of the HELP Talk series at HELP,Health Education Library for People, the worlds largest free patient education library www.healthlibrary.com
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Toxic effects of heavy metals : Lead and Arsenicsanjana502982
Heavy metals are naturally occuring metallic chemical elements that have relatively high density, and are toxic at even low concentrations. All toxic metals are termed as heavy metals irrespective of their atomic mass and density, eg. arsenic, lead, mercury, cadmium, thallium, chromium, etc.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Salas, V. (2024) "John of St. Thomas (Poinsot) on the Science of Sacred Theol...Studia Poinsotiana
I Introduction
II Subalternation and Theology
III Theology and Dogmatic Declarations
IV The Mixed Principles of Theology
V Virtual Revelation: The Unity of Theology
VI Theology as a Natural Science
VII Theology’s Certitude
VIII Conclusion
Notes
Bibliography
All the contents are fully attributable to the author, Doctor Victor Salas. Should you wish to get this text republished, get in touch with the author or the editorial committee of the Studia Poinsotiana. Insofar as possible, we will be happy to broker your contact.
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spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
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M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
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Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
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Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
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2. IODINE
INTRODUCTION :
Iodine is mainly used to make thyroid hormones.
The thyroid helps to regulate the rate at which your
body uses energy. It also plays a role in growth and
development.
You only need very small amounts of iodine for good
health. Without iodine your health can be affected over
the long term.
3. Your body does not make iodine so it needs to come
from the foods you eat.
The iodine content in foods can vary. The mineral
content of foods depends on the mineral content of the
soil where the food was grown or where the animals
were raised.
4. What is iodine?
• Iodine is a mineral that is
important for health. It is needed
to make the thyroid hormones.
These hormones are needed for
many body processes including
growth, regulating metabolism
and for the development of a
baby’s brain during pregnancy
and early life.
5. DISTRIBUTION IN THE HUMAN BODY
• The total body contains about 20 mg of
iodine.
• 80% is present in the thyroid gland.
• Muscles, salivary glands & ovaries also
contain some amount of iodine.
6. • Iodine is absorbed from upper small intestine.
• Iodine is transported in plasma by loosely binding
to plasma proteins.
• Iodine absorption also occurs through skin & lungs.
• 80% of body’s iodine is stored in the organic form
as iodothyroglobulin in thyroid gland
7. • Iodothyroglobulin contains thyroxine,
diiodotyrosine, & triiodothyronine.
• About 2/3rd of iodine is excreted through urine.
• Also excreted through bile, skin & saliva.
8. FUNCTIONS
Elevates pH (Iodine is an alkalinizing agent)
Necessary for the production of thyroid hormones
Necessary for the production of all the hormones of the
body (adrenals, ovaries, testicles, etc.)
Responsible for the formation of the normal architecture
of the glandular tissue, e.g. breast, thyroid, ovary, &
prostate
13. GOITER
Abnormal increase in size of the
thyroid gland is known as goiter.
Decreased synthesis of thyroid
hormones & is associated with
elevated TSH.
Goiter is primarily due to a failure
in the auto regulation of T3 & T4
synthesis.
14. Simple endemic goiter
• Due to iodine deficiency in the diet.
• Mostly found in the geographical regions, where the water & soil
are low in iodine.
• Consumption of iodized salt is advocated to overcome the
problem of endemic goiter.
• In certain cases, administration of thyroid hormone is also
employed
15. Critinism
• Hypothyroidism in children is associated with physical & mental
retardation, known as critinism.
Iodine deficiency prophylaxis:
• Iodised salt
• Iodised oil
• Iodised water
• Iodine tablets or drops
16. Toxicity
• Most people are very tolerant to excess iodine intake from food
with the exception of certain subgroups with autoimmune
thyroid disease and iodine deficiency.
• High intakes of iodine from food, water and supplements have
been associated with thyroiditus, goitre (due to increased thyroid
stimulating hormones [TSH] stimulation),hypothyroidism,
hyperthyroidism, sensitivity reactions, thyroid papillary cancer
and acute responses in some individuals.
17. • Symptoms of acute iodine poisoning include burning
of the mouth, throat, and stomach, abdominal pain,
fever, nausea, vomiting, diarrhoea, weak pulse, cardiac
irritability, coma and cyanosis
18. FLUORIDE
• It is mainly found in bones & teeth.
• The content of fluorine in water is
dependent on the soil content of fluorine.
19. RDA
1-2 mg/ day
Drinking water provides fluoride 1 ppm.
Fluoride Toxicity
Ingested in excessive quantities, fluoride can be toxic. The
American Dental Association has recommended that no
more than 120 mg fluoride.
20. Common signs and symptoms of acute fluoride toxicity
include nausea, vomiting, and a drop in blood calcium,
general signs of muscle tetany. Signs also include
abdominal cramping and pain and increasing hypo
calcaemiaand hyperkalemia, leading coma, convulsions,
and cardiac arrhythmias.
21. DISTRIBUTION IN THE HUMAN BODY
• 50 % of the absorbed fluoride will be associated with calcified tissue
• 50% excreted in urine
• 75 to 90 % absorbed from the alimentary tract, more from liquids
than solids (10 to 25% excreted via feces)
50:50 distribution is shifted strongly in favor of retention
in the very young, greater excretion in later years of life
23. • Unnoticeable, tiny white streaks or specks in
the enamel of the tooth.
Mild Dental Flourosis
24.
25. Tooth appearance is marred by discoloration
or brown markings.
Pitted Enamel, Rough and Hard to Clean.
Sever Dental Flourosis
26.
27.
28. FUNCTION
Strengthening of developing teeth from infancy to
adolescence.
Strengthens teeth by the formation of harder
enamel by converting HYDROXYAPATITE
CRYSTALS to FLUORAPATITE.
Flourapatite is less vulnerable to damage from
plaque acids
29.
30. MAGNESIUM
• Magnesium is essential for human life and is involved in the
activation of hundreds of enzyme systems. However, only relatively
recently has it been recognized as a drug with important clinical
uses; the World Health Organization (WHO) recommends the use
of magnesium in the management of pre-eclampsia and eclampsia,
it is used in the management of tetanus and increasingly for the
management of tachyarrhythmias. This tutorial discusses the role of
magnesium in the body, disorders of magnesium and its clinical
uses.
31. FUNCTIONS
• Magnesium exerts an effect on neuromuscular irritability similar to that of Ca2+,
high levels depress nerve conduction & low levels may produce tetany
(Hypomagnasemic tetany)
• About 70% of body magnesium is present as apatites in bones, dental enamel
and dentin
• Insulin-dependent uptake of glucose is reduced in Mg2+ deficiency, magnesium
supplementation improves glucose tolerance
• Magnesium is required for DNA replication process.
32. Body distribution
• The human body contains about 25g of magnesium
• About 60% of which is complexed with calcium and
phosphorous in bones
• About 1% is in ECF and remainder in soft tissues
33. SOURCES
• Magnesium is widely distributed in vegetables &
also found in almost all animal tissues
• Other important sources are cereals, beans, green
vegetables, potatoes, almonds, and dairy products,
e.g. cheese
34. RDA
• Adult man : 350 mg/day
• Women : 300 mg/day
• During pregnancy and lactation : 450 mg/day
35. Hypermagnesaemia
• Increase in serum magnesium than the normal levels is called as
hypermagnesaemia
• It is uncommon but is occasionally seen in renal failure
• It is rarely be caused by intravenous injection of magnesium salts and
adrenocortical hypofunction
• Symptoms:
• Depression of the neuromuscular system is the most common manifestation in
Hypermagnesaemia
36. Hypomagnesaemia
• Decrease in serum magnesium levels than the normal range is called as
hypomagnesaemia
• Magnesium is present in most common food stuffs, low dietary intakes of
magnesium are associated with nutritional insufficiency, accompanied by
intestinal malabsorption, severe vomiting, diarrhea or other causes of intestinal
loss
• Symptoms are impaired neuromuscular function, tetany, hyper irritability, tremor,
convulsions and muscle weakness
Editor's Notes
Magnesium acts as a co-factor
More than 300 enzymes requires magnesium as a cofactor
Magnesium is an allosteric activators of many enzyme systems
It is essential for peptidases, ribonucleases, glycolytic enzymes & co-carboxylation reactions
Magnesium influences the secretion of PTH by the parathyroid glands & hypomagnesaemia may cause hypoparathyriodism