Saturday, February 29, 2020

10 Myths and Misconceptions About Bedbugs

10 Myths and Misconceptions About Bedbugs There are many misconceptions about the humble bedbug. Bedbugs (or cimicids) belong to a highly specialized family of insects that feed off the blood of humans, bats, and birds. The best-known members are the temperate-climate parasite Cimex lectularius (which means bedbug in Latin) and Cimex hemipterus, a tropical version. Bedbugs are the most widely recognized insect in the world. They are known to have fed on humans for more than 4,000 years- and probably much longer. Unfortunately, there are many myths about these tiny pests. If You Wake Up With Insect Bites, You Have Bedbugs Bedbugs tend to bite on locations that are exposed during sleep- the arms, legs, and back as well as the face and eyes. The insects prefer sites that lack hair, with a thin epidermis that provides access to plentiful blood. However, bedbugs are not the only nocturnal feeder on humans. Quite a few other arthropods could be the cause of bite marks, including fleas, mites, spiders, or even bat bugs. Also, many medical conditions cause rashes that look similar to bug bites. If the marks persist but you dont find signs of an infestation, consider a trip to the doctor. Are you the only one in your household waking up with bites? People react to bedbug bites differently, just as they do with mosquito and other insect bites. Two people can sleep on the same bedbug-infested mattress, and one will wake up without any signs of being bitten while the other will be covered in bite marks. Bedbugs Cannot Be Seen by the Naked Eye While bedbugs are pretty small insects, they arent microscopic. If you know where to look for them, you can definitely see them without the aid of a magnifier. The bedbug nymph is roughly the size of a poppy seed. Adults measure a bit larger than 1/8th of an inch, or about the size of an apple seed or a lentil. The eggs, which are just the size of a pinhead, are harder to see without magnification. Bedbug Infestations Are Rare Although bedbugs all but disappeared in developed countries in the 1930s and again in the 1980s, global bedbug infestations are increasing in the 21st century. Rises in bedbug activity have been seen on every continent except Antarctica. In the United States, bedbugs are reported in all 50 states, and an estimated one in five Americans either has had a bedbug infestation in their home or knows someone who has. Today, infestations are found in offices and retail environments, in health and transportation buildings, and even in movie houses: basically, anywhere people sleep or sit. Bedbugs Are a Sign of a Dirty House Although there is a great social stigma to having a bedbug infestation, bedbugs dont care how neat and tidy your house is, nor do they care if youre the best housekeeper on the block. As long as you have blood pumping through your veins, bedbugs will happily take up residence in your home. The same rule holds true for hotels and resorts. Whether a hotel has bedbugs has nothing to do with how clean or dirty the establishment is. Even a five-star resort can host bedbugs. One thing to keep in mind, however, is that clutter can make it much more difficult to get rid of bedbugs once theyre in your home- the mess gives the insects plenty of places to hide. Bedbugs Only Bite After Dark While bedbugs prefer to do their dirty work under cover of darkness, the light wont stop a hungry bedbug from biting you. In desperation, some people will try leaving all their lights on at night, hoping the bedbugs will stay hidden like cockroaches. All this will do is make you more sleep-deprived. Bedbugs spend most of their time hidden away. They only come out to feed once every three to seven days, usually from one to five a.m. They fully engorge themselves on your blood in 10 to 20 minutes, and then they go back to their hiding places to digest their food. After a meal, adult bedbugs may increase in length by 30 to 50 percent and in weight by 150 to 200 percent. Bedbugs Live in Mattresses Bedbugs do hide in the seams and crevices of your mattress. Since these nocturnal insects feed on your blood, it is to their advantage to live close to the place where you spend the night. But that doesnt mean bedbugs only live in mattresses. The insects also inhabit carpets and couches, dressers and closets, and even places where youd never think to look, such as inside picture frames and switch plate covers. Infestations can be extremely costly, resulting in multimillion-dollar damage in the hospitality industry, poultry industry, and private and communal households. Costs include payment for pest control, damage to social reputation, and replacement of infested clothing and furniture. You Can Feel a Bedbug Bite Bedbug saliva contains a substance that serves as a mild anesthetic, so when one bites you, it actually does you the favor of numbing your skin first. Its very unlikely that youd ever feel a bedbug bite when it happens. Reactions to bites vary from individual to individual. Some people have no reactions at all; often the bites start out as small indistinct lesions about two-tenths of an inch in diameter, which may develop into larger circular or ovoid welts. Some may grow as big as 2.5 inches in diameter. If there are a large number of bites, they can give the appearance of a generalized rash. They itch intensely, cause sleep deprivation, and can be associated with secondary bacterial infections as a consequence of scratching. Bedbugs Jump From the Floor to Your Bed Bedbugs arent built  for jumping. They simply dont have the legs for it as fleas and grasshoppers do. Bedbugs dont have wings, either, so they cant fly. They can only crawl for locomotion, so moving from the floor to the bed requires them to climb up a leg of the bed, or to scale belongings or furniture youve placed nearby. This can work to your advantage if youre battling bedbugs, as you can create barriers to keep them from climbing onto your bed. Cover the bed legs in double-sided tape, or place them in trays of water. Of course, if your bedspread touches the floor, the bedbugs will still be able to climb up, and the insects have also been known to crawl up the wall to the ceiling and then drop onto the bed. Bedbugs Transmit Diseases to People Although bedbugs can and do carry infectious diseases, there is little danger of the viruses being transmitted to humans. So far, scientists have found no evidence that bedbugs are capable of transmitting diseases to human hosts. For this reason, theyre considered a nuisance pest rather than a health threat. But even though they dont transmit diseases, bedbugs arent harmless. Some people experience severe allergic reactions to bedbug bites, and people who are bitten sometimes suffer from secondary infections. The emotional stress of dealing with a persistent bedbug infestation can also have a negative impact on your health. Bedbugs Can Survive a Year Without a Meal Technically, this is true. Under the right conditions, bedbugs have been known to survive as long as a year without a meal. Bedbugs, like all insects, are cold-blooded, so when temperatures drop, their body temperatures decrease. If it gets cold enough, bedbug metabolism will slow down, and theyll stop eating temporarily. However, it is highly unlikely that it would ever get cold enough in your home to trigger such a long period of inactivity. For practical purposes, then, this statement is false. At normal room temperature, a bedbug might go as long as two to three months without a meal, but thats about it.

Thursday, February 13, 2020

Ghana Letters Essay Example | Topics and Well Written Essays - 2000 words

Ghana Letters - Essay Example The philosophy of this political party, as my cousin explained to me, was close to my ideas: independence from Ghana and social justice but with a dynamic form of resistance. In other words, it would be a nationalist party influenced from the ideas of socialism. I was really pleased to hear that and I stated my interest. In a few days, the 10th of June, I was present in the party’s establishment, being one of its founding members. Through the years, I tried to participate in as many meetings of the party as possible, supporting social activities, writing documents and organizing events. Through these public meetings local people had the chance to be informed on the progress of the country’s independency and on the party’s schedule for securing economic growth. Also, emphasis was given to the protection and enhancement of Ghana’s cultural and social identity. Because I have to respond also to my duties as a teacher my involvement in the party’s activities could not exceed the two-three hours on a daily basis. For years, my life was dedicated to inform people on Ghana’s potentials, as a nation, on the history of Ashanti, a population that has suffered a lot from colonialists and from the chances of Ghana to recover from economic devastation, as a result of its long-term occupation from colonialists. The power of Ghana’s culture and tradition had been significant help; G hanaians, being independent by nature, were willing to risk their live for securing the freedom and happiness of their children. All these efforts were terminated unexpectedly. It was the morning of 24 February of 1966 that police officers entered my apartment and arrested me. I had to pass a few years in jail, without specific category but just because of my participation in a political party. My participation in CPP offered to me valuable memories but also an important feeling: I know that I’ve done everything possible for helping my country to escape colonialism and to become

Saturday, February 1, 2020

Investigating the Relationship between Academic Persistence and Age, Dissertation - 1

Investigating the Relationship between Academic Persistence and Age, Gender, Ethnicity and Transfer Credits - Dissertation Example Adult Learner Academic Persistence According to previous reports, the retaining of adult learners in programs and institutions on adult education has become a great challenge. The rates of attrition and pressures of accountability within these institutions are also very high according to Jeffreys (2012). The previously carried out pieces of research show that most adults who withdraw from these learning programs do so after accomplishing their goals. They reportedly leave to join other programs that suit them more. According to Sanders, most of the adults dropping out of school return after their situations have been altered creating cycles between their dropping out and return which happens severally (2008). Previous literatures additionally indicate that the process of utilizing the class and lecture a major measurement of persistence undervalues other activities that would be effective in learning and which should be encouraged. This includes activities like distance learning and personal studies. In the year 2009, Comings, Parrella & Soricone, defined persistence as that period that adults remain in adult learning programs as they engage in personal studies as a result of being forced by circumstances leading to their withdraw from attending lectures or classes. The author additionally suggests that the adult students may return to their lectures when their situations in life allow them to. According to previously carried out surveys among adult students who were studying in America, those who had previously been involved in vocational training, self study and other forms of learning, had a greater likelihood of persisting academically than their counterparts who had not been involved in similar activities (Jones, 2008). These surveys additionally show that the adult students who had specific wants had greater probabilities of persisting than those adults who were in the learning institutions but had no specific wants. According to Sanders, if the academic persistence of adult students has to be improved, the learning institutions should avail additional learning alternatives like distance learning to the adult learners who are no able to attend their scheduled lectures (2008). Learner centered perspectives can greatly help in supporting the academic persistence and understanding among the adult learners by managing the forces that hinder or advance their learning activities (Millar, & So, 2008). According to previous literature, several factors are responsible for affecting the academic persistence among adult learners and range from the different institutions, situations, dispositions, and demographic factors and emotional and relational forces (Quigley, 2008). Problems that arise from the adult learner’s employment, finances, families and abuse from their classmates, transport and health can be classified as being situational. On the other hand, institutional barriers prevent adult learners from persisting academically and c ould include issues like the level or content of the course, their location or failure to meet the set admission guidelines (Ziegler & Durant, 2009). The attitudes, self-efficacies and resilience among the adult learners towards their learning may prevent them from excelling in their chosen academic