Essay Of Senescence

Aging and death is unquestionable. Each person will experience death in life. Presumably, the average human life is age 70 (Schilling, Wahl, & Wiegering (2012) this number greatly depends on a persons' age, gender, health, cultural background, in addition to geographical location. Aging comes with carrying years of having obstacles, shock, and sorrow which in the end puts a stinging strain on the body. The pressure of death and dying likewise causes innumerable distresses, which produces a broad range of sadness. These reactions cause one to begin experiencing bereavement, grief combined with mourning (Clegg,

Just like all muscles in your body, the brain also declines or deteriorates as one ages. In recent years researchers have been studying the effects of cognitive decline in elderly individuals. They have concluded that senescence, which is the process of deterioration with age severely affects the brain of elderly individuals buy reducing the production of neurotransmitters, glutamate, acetylcholine, serotonin, and dopamine that allow nerve impulses to jump across the synaptic gap between neurons (Berger,2014). In addition to these significant findings there is also evidence, which suggests that neural fluid production decreases, myelination or the insulative process that allows neurotransmission to occur more rapidly, begins to thin as cerebral blood starts to circulate slower (Berger,2014). The combination of the processes of senescence on the aging brain causes the individuals cognitive performance to decrease, in other words, the processing speed is drastically reduced affecting reaction times, movement, speech, and thought and the brain volume itself becomes smaller (Berger,2014). Although there are changes in cognitive function with normal aging, not all cognitive functions are affected equally with aging and there are differences in the degree and pattern of decline (D'cruz,2013).

Soil, which is the layer of earth on the top where plants and vegetation grow, contains a pH balance, everything does. The pH, acidity, or alkalinity balance of each type of soil that is being observed can affect the plants, because it determines how many nutrients are being deposited to them. It

1. In her speech, Jane Fonda spoke about aging and the effect that it can have on a person. Fonda talked about “Life’s Third act” or the last three decades of a person’s life. Fonda explained that the advances in medicine and technology enabled the human race to live longer than before (Fonda, 2012). According to Fonda, humans are living on average, thirty years longer than past generations. The human life span has been extended and humans are spending a great deal of their lives in older age (Fonda, 2012). Fonda explains that we should not accept aging as a decline to our mental and physical capacity. According to her, our spirits do not age but mature over time which explains why people over the age of fifty are generally happier, less

There are two theories of ageing. The disengagement theory is when the elderly unfortunately start to give up with activities or social life. They become withdrawn from society. This is when you disengage from any way of contact or interaction. The reason for disengagement theory may be because physical functions deteriorate. There are three phases of disengagement theory. These are shrinkage of life space is when you are not working or have no contact with friends and family. You don’t get to meet new people. You decide not to take up any hobbies or activities. The second phase is increased individuality. This is when you become independent and what others do does not matter to you. The third phase is acceptance. You start to accept

The microbes found in soil go hand in hand with the microbes found in our bodies, especially the gut microbiome. Soil is used to grow various plants and crops which we then ingest. As stated in Healthy Soil Microbes, Healthy People, we have completely destroyed soil microbes by overusing fertilizers and pesticides just like how we have destroyed our gut microbes by ingesting processed foods and large amounts of antibiotics. Soil microbes, including bacteria and fungi, form symbiotic relationships with plant roots to help provide the plant with many nutrients needed to survive. In order to restore and improve the soil once again, we need to reintroduce bacteria and fungi that are capable of repairing the damage. Through recent technological advances, the soil microbiome was genetically sequenced. This allows farmers and other scientists to understand which microorganisms are

*When maintaining pitcher plants, the pH levels vary depending on the type of insect you feed it. In researching, how pitcher plants change, I found how to grow a pitcher plant, the bugs that I’m feeding it, and why the pH levels change .given these points My hope is that in writing this paper, I will be able to tell why the pH levels change in the plants because of the food its fed.

Aging comes naturally and people should not be frighten be it. As it turns out the fear of this process is enough to speed it up. The negative attitude is a very powerful factor in this process and has a great effect on the physical aspect of aging. It is enough to put people into deep depression or lose their confidence with many other things like good posture. On the other hand maintaining a positive thinking can really slow the process down. In fact it can do miracles, regular exercises and healthy diet can bring new life. Often people feel threatened by aging and put a hold on their lives, while they should be constantly evolving as they go through life. With positive thinking, it is all possible. This paper will show that despite

As a 25-year-old adult, consider myself on the younger spectrum as far as biological age. However, I am being reminded daily that I am getting older. I no longer can recover from a workout as rapidly as I used to, I require more sleep after a night of staying up late, there are no more “all nighters”, and I have recently developed pain in my joints and spine. As you may have noticed, all the reasons I have listed above seem obviously negative. This is exactly what I am hoping to get out of this class. A positive perspective of the aging process. I have noticed when I pay attention to the physical aging process my body undergoes; my brain is focused on the negative changes and instead should be focusing on what my age has given me over the years. I am hoping, through taking this class, I will expand my knowledge tremendously on the aging process and begin to switch my way of thinking to a more positive one and begin living a better quality of life as the years pass.

Microorganisms support the soil and the plants ability to grow but are only utilized with responsible nutrient management. If microorganisms are destroyed, crops will produce less yields and the soil will not be as beneficial. Since microorganisms are so complex, to find out how to restore them to normal would be a problematic task. Once microorganism in the soil are better understood, farmers will have a better ability to manage the nutrients in the soil so nutrients can be added that support the microorganisms.

Humanity has come a long way as we evolve and adapt to the changing environment. Through the years, we have managed to overcome several limitations, which in the past were nothing more than dreams. We succeeded in landing on the moon and communicating over long distance, yet there are still some boundaries we have yet to cross despite our best effort. Aging is an inevitable process of nature. While we cannot stop the ticking clock in our body, we have made it possible for aging to be delayed and relieved to a great extent through advance technology and modern governance. High-tech equipments and medications are available for the treatments of more illnesses as our understanding of medicine improves and governments nowadays are doing

The plants that grow in saline soils have diverse ionic compositions and a range in concentrations of dissolved salts (Volkmar et al., 1998). These concentrations fluctuate because of changes in water source, drainage, evapo-transpiration, and solute availability (Volkmar et al., 1998). Due to these varying conditions, plant growth depends on a supply of inorganic nutrients, and this level of nutrients varies in time and space (Maathius and Amtmann, 1999). Either extreme condition concerning nutrients results in deficiency or toxicity in plants, and this is demonstrated by salt tolerance (Maathius and Amtmann, 1999). These conditions vary according to the plant species and growth conditions. Little is known about the genetic basis for diversity of salt tolerance in plants, and this could be partly explained through the definitions given for salinity.

Traditionally, the study of microbial model systems in ecology has been limited, although the advent of molecular tools such as next generation sequencing has advanced the understanding of microbial community patterns and processes. This has resulted in a growing focus on studying fundamental ecological processes such as assembly and stability on microbial communities (Fierer, Ferrenberg, Flores, et al., 2012). Because of their simplicity, microbial model systems are in contrast with the complexity of the macro-ecological communities, allowing researchers to establish and test fundamental ecological mechanisms relevant to macro-ecological processes (Jessup, Kassen, Forde, et al., 2004).

Microbes were the abundant biological entities found in the biosphere. Identification and measurement of microorganisms (including viruses, bacteria, fungi and protists) cannot be completely achieved due to limitations in culturing methods. Micro organism communities were important in the functioning of all ecosystems, but the unculturable microorganisms and their role in natural ecosystems were unclear. Metagenomics was based

In this paper, the variables, instruments and analyses of the hypotheses to be used to operationalize and test each hypothesis will be explained.