From experienced academic experts. In any field of study
The events of the cardiac cycle are arranged in a sequence that reflects a series of pressure changes. Thus, they start with the contraction of the atria and, consequently, the ventricles in one’s body. In this way, the left and the right heart are separated and begin functioning as two...
Functioning of the pulmonary and systemic circuits implies significant differences between them, attributed to the destination of blood in one’s body and its nature. First, the former type is the process of carrying deoxygenated blood from the heart to the lungs, whereas the latter means transferring oxygenated blood from the...
The Mark of Zorro (1920) by Fred Niblo and The Circus (1928) by Charlie Chaplin represents classical narrative cinema that is defined by a set of typical attributes of narration and style. The Mark of Zorro is an American adventure film with a historical atmosphere, elaborate costumes, dueling, stunts, a...
Thomas Edison and the Lumière Brothers became prominent figures in the invention of cinema because their experiments led to the development of innovative technologies replacing hand-painted dioramas and live performances. Edison invented the kinetoscope, while his assistant, W. K. L. Dickson, improved the device by introducing perforated 35mm film strips,...
Healthcare providers’ attitude toward securing their jobs to avoid being sacked makes them not to be in a position to report. They fear reporting mistreatment due to threats from their employers; mostly, blacks fear reporting the whites after being mistreated. Unavailability of reliable entities where healthcare providers may table their...
As the COVID pandemic ravages different economies globally, it makes it difficult for Southwest Airlines to obtain capital to fund an aggressive value-enhancement strategy. The traveling business has been highly affected by travel restrictions and the risk of spreading the virus, which has seen a reduction in the number of...
A strategic alliance within the field of business refers to a mutual agreement between two or more firms to work together to achieve shared objectives. The coalition is key to realizing the shared goals, which would otherwise be unattainable if one firm was to commit to the objectives independently. Through...
The liquidity and profitability ratios are essential in giving insight into the current financial performance of Southwest Airlines. The liquidity ratios, like the quick ratios and the current ratio, assure whether a firm can settle the current debt obligations. On the other hand, profitability ratios include the net profit margin,...
Even though the possibility of such an invention emerging is quite attractive and tempting, I foresee some issues resulting from releasing this pill. As mentioned, the elimination of dreaming is the only side effect. Nonetheless, I consider dreamlessness to be a significant problem leading to harmful consequences. In addition to...
The main content of such cells is a formalized nucleus with genetic material. In addition, eukaryotic cells have a membrane, a cell membrane (characteristic of some domains), the Golgi apparatus, ribosomes, lysosomes, and mitochondria. The cell also includes the division apparatus, vacuoles (characteristic of some domains), reticulum, and means of...
The plasma membrane should be called the elastic structure of each cell, which delimits the internal contents dissolved in the cytoplasm from the external environment and other cells. The membrane is not entirely tight: in order to provide resource and energy exchange, the plasma membrane has pores (transmembrane proteins) and...
Typically, every cell has a division limit (otherwise known as the Hayflick limit), which limits the number of acts of the division of a somatic cell. However, if the cell continues to divide contrary to the limit, it indicates a violation of the genetic mechanisms of mitosis regulation. In this...
The concept of “civil dialogue” presupposes respectful, attentive, and productive communication on a controversial topic. Accordingly, this concept can improve the quality of the messages I send and receive, turning them into more fruitful ones, probably leading to new discoveries and knowledge. This concept implies communicative strategies for a conscious...
Wealth maximization and profit maximization are both objectives that companies seek to fulfill. Profit maximization is based on the overall economic activity of a business entity that is aimed at achieving greater profitability. It is premised on the understanding that a business cannot survive without making any profits. The profits...
Martha Stewart was accused of being tipped off by her stockbroker, Peter Bacanovic, regarding a probable decline in the share price of ImClone Systems Inc. She then proceeded to sell her shares in the company a day before the prices came down. The sale was detected by the authorities due...
If society treats the work of teachers as unimportant and does not require special qualifications, then there will also be a feeling of uncertainty in classrooms. Students will be unsure whether it is essential to study and explore things. Nevertheless, future teachers can change this trend by actively spreading ideas...
The New Deal was a series of federal government programs that were aimed at helping Americans who were struggling with the results of the Stock Market Crash of 1929 and the Great Depression. In 1933, 25 percent of the workforce was unemployed, too many banks closed because so many people...
The New Deal was about economic policies being fair to all for the common good. It established the Federal Government as the safety net for its citizens in times of financial crisis. Through the New Deal, the federal government’s role expanded in areas of public policies that affected the lives...
In its simplest definition, “consumer culture” is one where the economy is driven primarily by consumer spending. After the Second World War, the United States and other developed nations standardized their economies toward massive Industrialization. This created standardized and structured production centers. Electricity and improved line of production led to...
The harmonized coding system introduced by the World Customs Organization is a distinct nomenclature that allows distinguishing various types of products based on their characteristics. Considering the remarkable diversity of trade goods and the complications that could arise if each nation applied its unique classification, HS becomes a valuable tool...
Clipper’s next objection was that the decision of the grand jury presented the Hallmark Company with a second reimbursement from one injury due to the settlement of a similar lawsuit against the Monitor and that the dual penalty was canceled or reduced close to the number of Hallmark’s agreement with...
The use of e-books in the classroom and for students’ independent learning has proven to be an effective tool, especially in engaging struggling readers in the reading process. Indeed, one of the most significant features of e-books’ contribution to engagement is the motivation to read, which is achieved through the...
While Cage’s work caused indignation both on the part of the audience and on the part of many composers of that time, it is clear that he made a lasting impact with it. I think he was a unique composer, in his way, as he thought about creating music through...
I would agree with the point that the music is hypnotic, as it indeed is. While Reich’s music is not something I would listen to daily, for I appreciate more fast-paced and intense tunes, I was still entranced by it. The music is light and dreamy, has many aspects of...
A few basic ragtime definitions to get you started are provided below.Ragtime is a solo piano work popular among amateur pianists and is characterized by the use of syncopated rhythms, which is why beginning pianists commonly choose it. Because of its simplicity and accessibility, ragtime is a popular choice for...
The mannerism art style originated as a result of classicism and naturalism symbiosis. The standards of portraying the human nude in the art pieces of the Mannerist style were formed by Michelangelo and Raphael. The emphasis on style and technique in Mannerist artists often outweighed the subject matter and its...
Significantly, hip-hop feminism is a type of feminism and specific philosophy. Hip-hop feminism is an empowering movement that fights sexism, objectification, and destructive behaviors in hip-hop culture. Important factors of hip-hop feminism concerning hip-hop music are respect and a positive attitude towards female bodies and ambitions. Thus, hip-hop feminists try...
First of all, sexualization and objectification are significant issues in hip-hop culture. Imani Perry mentions that women have played a difficult role in hip-hop and discusses women’s attempts “to carve out a space as a form of feminism, the abundant sexism in the music, and the possibilities for greater gender...
Music is a way to express your true self, combining different sounds to achieve inner harmony. The performer plays a decisive role in creating music because only he knows what result he wants to achieve and what feelings and emotions to convey. Any music always finds its audience; every viewer...
It might be challenging to comprehend jazz easily from the position of a non-Black person. First of all, it is crucial to understand that jazz does not consist of music alone, and not every dance that is accompanied by it is a jazz dance. This style stems from vernacular movements...
Notably, I partially agree with Imani Perry regarding the issue. Imani Perry states that “hip-hop is masculine music” because it highlights a distinct black male identity. She considers that hip-hop masculinity displays “the desire to assert black male subjectivity.” Consequently, it is often illustrated by subjugating women’s bodies or showing...
In general, music can be defined as the technique of combining tones attractively or expressively, frequently with melody, rhythm, and harmony. Music is compiled of different structures and genres that are stylistically separated. Classical music, which includes a considerable part called Romantic music, is believed to be the most intelligent...
Images of pastel tones and dawn are created by Maurice Ravel in the bass register (low winds and strings). Then, with the help of a piccolo flute and a piccolo clarinet, Ravel saturates a deserted place with people (shepherds). Stravinsky does something clever and unusual in the Rite of Spring...
It is known that traditional slave melodies, also recognized as the Negro spirituals, have greatly gathered a very important function in the culture and society of African Americans. Traditionally, the melodies and tones overheard in the antebellum south could be initiated on the African folklore metamorphosis, dualism, and dependable acquaintance...
Cyndi Lauper’s song “Girls Just Want to Have Fun,” released in 1983, was originally written and recorded in a demo version by Robert Hazard in 1979. Although it is the same song, singing it from the perspectives of a man and a woman gives it completely different meanings. The version...
Essentially, Imani Perry demonstrates black self-expression in Prophets of the Hood by claiming that hip-hop is black music. Specifically, Perry states that “hip-hop music is black American music.” She notes that despite hip-hop’s hybridity and borrowings from other cultures and communities, it is still associated with African-Americans. Even though hip-hop...
The two species exhibited very similar behaviors, particularly concerning sexual dimorphism. In both T. cristatus and P. pygmaeus, the only one adult male present was less mobile and physically active than the rest of the group. Both primates spend a lot of the observed time grooming or resting and sleeping....
Quantitative and qualitative methods provide similar data but are effective for different purposes. The qualitative method allows more specificity in the observations, like the description of particular interactions between animals. While such details can be helpful, they also introduce the possibility of bias, which is absent in the quantitative method....
Humans are biased against certain animals since they can discriminate against animals that do not belong to a particular species. Peter Singer drew the phenomenon of Speciesism from the ideology that it is categorical that humans are way better than animals. However, the term speciesism can be compared to sexism...
People construct bioswales to reduce stormwater runoff and eliminate contaminants that can pollute the surroundings. They are long vegetated areas that collect rainwater flowing on impervious surfaces such as streets, car parks, and pavements. The vegetation traps stormwater and allows it to infiltrate into the soil, thus preventing flooding. Apart...
Some techniques enable us to succeed in bio-remediating leachate using constructed wetlands. These techniques aim to design effective and cheap bio-remediation systems. The choice of an approach depends on the type of contaminants present in leachate. For example, using prioritization tools enables researchers to integrate toxicity data from databases with...
In North America, the statistical estimates suggest that MSUD affects approximately one child in 185000 births. It is also stated that “the prevalence may be higher in specific ethnic groups.” In the case of the adult population, there is no verifiable data about MSUD among adults.
The main cause is genetic, which results in a person not being able to break down a specific set of proteins. It is stated that “MSUD is caused by genetic variants in the BCKDHA, BCKDHB, or DBT genes.” Therefore, these proteins build up in the body, which can be highly...
Maple syrup urine disease is named as such due to the specific smell of urine and earwax of infants, which resembles the smell of maple syrup. It is stated that “maple syrup urine disease (MSUD) occurs when the body is unable to break down certain parts of proteins. This leads...
MSUD is inherited through an autosomal recessive pathway, which means that in order to for an individual to suffer from the disease, he or she must have two recessive alleles of the gene. Therefore, if both parents carry the MSUD gene in a heterozygous fashion, then a child will have...
The key advantage of using IPS is the fact that the created cells are of the same genotype as the host, which means that transplantation procedures will not involve the rejection of new tissue. In addition, there are fewer ethical implications in regard to IPS since the origin of these...
Both multipotent and pluripotent cells are stem cells, which differ in capability to develop from other mature cells. Pluripotent stem cells are capable of giving rise to any type of cell in an organism’s body, whereas multipotent stem cells can only give rise to a limited number of mature cells....
Bicoid genes in fruit flies are an important morphogen that determines the segmentation of the anterior section of the insect. Any form of impactful mutation in bicoid results in improper development of the key segments of the head and first segments of the fly’s body. It is important to note...
An ideal organism needs to have a short life span or maturity. A large number of offspring can be easily manipulated genetically and easy to grow and maintain. Firstly, such an organism needs to mature quickly in order to be able to see the long-term effects of its genome, which...
It is important to note that sexual reproduction yields significantly more genetic variation, whereas asexual reproduction results in genetically identical offspring, which are practically clones of a parent. The organism would use sexual reproduction before winter in order to create varying offspring before the major stress event, which is winter....
Both non-disjunction and translocation are chromosomal mutations, where the former refers to a failure of separation of a homologous pair. In other words, one gamete will acquire one more chromosome than it should, and another will be deficient for the chromosome since the pair is not separated. Translocation is an...
Both crossing-over and independent assortment take place mainly during meiosis. The former refers to an exchange of genetic material between two homologous chromosomes in order to swap certain parts of a chromosome to create a higher degree of variation. It involves an exchange between a maternal and paternal chromosome. However,...
Codominance is an interaction between two allele variants of a gene, which results in a phenotypic expression of both versions. For example, if a gene for fur color has white and black alleles, then the codominant expression of the gene results in a phenotype of a grey color. The main...
Genotype refers to the genome or genetic material which is transferred from one generation to another. However, a phenotype is a collection of observable traits and characteristics, such as coloration, behavior, or longevity, which are the result of genetic variations. For example, the X-chromosome-linked hemophilia gene is a genotype, and...
Using genomics for the resolution of health issues can be effective but also can cause an ethical problem when applied to creating humans with superior genes. In other words, by engineering humans with more advantageous genes, such as resistance to diseases and aging, society will become segregated into humans created...
Dideoxy DNA sequencing or Sanger sequencing is used to determine the nucleotide sequence of a DNA fragment, where the elongation or polymerization process is halted by the introduction of ddNTPs. Therefore, by using four different types of ddNTPs, such as ddATP, ddCTP, ddGTP, and ddTTP, one can halt polymerization at...
The goal of the experiment was to either support or reject the null hypothesis, which states that “genes do not have a one-to-one correspondence with enzymes.” The findings indicated that “the one-gene, one-enzyme hypothesis is supported.” The experiment was set up focused on three different mutant strains of Neurospora crassa,...
The first level of DNA packaging is a nucleosome, which is comprised of histone proteins and DNA wrapped around the latter. The second level is a chromatosome, which is comprised of nucleosomes and H1 histones. The third level is a solenoid fiber, which is a helical structure of tightly packed...
A coding region of a gene is comprised of several chunks of exons and introns, where the splicing process can differentially cut and reorganize these parts to create more than one protein. In other words, an RNA transcript can be spliced in a number of ways in order to produce...
Regulatory transcription factors are proteins that are capable of recognizing specific DNA sequences in order to selectively regulate the rate and degree of transcription processes. However, co-activators are coregulatory elements that interact with transcription factors to induce the regulation of a gene. Co-activators are needed to activate the activators, where...
Enhancers and silencers are regulatory regions that either activate or suppress the promoter. Enhancers “turn on” the promoter region by making it accessible for transcription protein complexes, whereas silencers “turn off” the promoter region by making it inaccessible to enzymes. These are highly important structures since they regulate the rate...
Promoter proximal regions are regulatory sequences located before or upstream of the promoter, which is responsible for the regulation of the transcription process. However, the promoter itself is a region where the transcription of a gene begins by binding with various enzymes, such as RNA polymerases.
Firstly, the main disadvantage of using DNA directly is because DNA and protein synthesis needs to occur at different cellular locations, without which DNA would have to be in the same environment as ribosomes making DNA more vulnerable and exposed. Secondly, DNA contains a wide range of non-coding regions to...
The central dogma states that genetic information mainly flows from DNA to RNA, which is transcription, and from RNA to proteins, which is translation. In addition, DNA can create another DNA through the replication process, and RNA can make DNA through reverse transcription. RNA molecules also have the capability to...
The primary mRNA transcript “matures” to a mature mRNA by undergoing capping, polyadenylation, and splicing. Firstly, the GTP cap is attached at the 5’ end of the transcript in order to increase ribosome attachment and stability. Secondly, a poly(A) tail is added at the 3’ end in order to protect...
Male testes are active throughout the entire reproductive lifespan, and they produce sperm and androgens. Spermatogenesis is performed in these organs’ cells, the process that begins from spermatogonia mitosis and DNA replication and completes with the sperm released into the lumen. Sperm is continuously produced in the male reproductive system...
Oogenesis’ primary function is to produce the egg, a female functional gamete, and the result also includes three polar bodies related to devoid of cytoplasm. These cells’ formation occurs because the division of oocytes is asymmetrical, and meiosis results in the four elements. Polar bodies are developed to provide the...
Bcl-2 protein family is responsible for controlling the apoptosis processes. They are divided into two groups, namely pro-apoptosis and anti-apoptosis proteins. Therefore, when the two types of proteins are relatively balanced, the cell continues living. On the contrary, when anti-apoptosis proteins prevail, the cell will eventually die. For example, the...
During DNA replication, helicase unwinds the DNA double helix, which creates two strands. One strand is positioned as 5’ to 3’, whereas the other is 3’ to 5’. DNA polymerase can only synthesize a new strand by working from a 5’ to 3’ direction, which is why the 5’ to...
Primase is an enzyme that creates a primer on a strand in order to allow DNA polymerases to synthesize a new strand. The main reason is that DNA polymerase cannot synthesize a completely new strand on a “naked” single strand, which is why it requires a primer to attach nucleotides...
Helicase is an enzyme that is responsible for the separation of two strands of DNA from their double helix form. It leads the replication process by enabling access to the leading and lagging strands for primases, DNA polymerases, and other enzymes. Helicases break hydrogen bonds between nucleotide bases, which hold...
Nucleases cleave the phosphodiester bonds, which means they can remove nucleic acids from the DNA. The enzyme enables a precision-based modification of a DNA molecule on a single nucleotide. It is important for mismatch repair, nucleotide excision repair, base excision repair, and DNA replication. In other words, random single nucleotide...
Histones are structural proteins which bind with DNA molecules to aid the condensation process by allowing a more improved packing of the long double helix structure. In other words, DNA wraps around histones in order to make the chromatin, which is more compact than loose DNA. There are five histone...
The main function of a Poly(A) tail is to increase the stability of RNA molecules, particularly messenger RNA or mRNA. After mRNA is transcribed and matured after splicing, it needs to be stabilized from degradation on both ends, where the head is protected by the cap, and the tail is...
A silent mutation is a codon mutation, which does not result in a change of amino acid after the alteration. For example, GUG encodes an amino acid called Valine, and the following change would be an instance of silent mutation. Since both GUG and GUA code Valine, the change of...
Standpipes are part of the fire extinguishing system, directly connected either to the water supply system or to a water tank. Unlike water sprays, which function automatically, the standpipe is designed for human use and is divided into several classes depending on the design. These pipes deliver water to hard-to-reach...
Fire pumps are among the most critical parts of fire protection systems for any building. They are a critical component of the fire spray system, without which their full function is impossible. Their primary purpose is to draw water from the source to which they are connected and create high...
Fire exits are part of a system designed to provide the safest evacuation of people in an emergency. They may have a different look and functionality; however, their primary purpose remains unchanged. Fire exits are the exit point for people following the escape route and should, ideally, direct them to...
The fire control panel’s primary purpose is to alert people inside the building about an emergency. This device collects all information about the situation in the building in one place using a network of various sensors. In a fire hazard, the control panel emits a signal, attracting workers’ attention and...
The benefits of the IPv4 to IPv6 transition include efficiency, transparency, and security. Firstly, IPv6 is inarguably more efficient owing to its hierarchical structure, which reduces the size of the routing table. Secondly, the migration ensures end-to-end transparency, enabling administrators and users to track any suspicious activities. Lastly, the IPv4-IPv6...
The IPv4-IPv6 transition is essential for upgrading the existing systems to ensure more efficiency and effectiveness. This upgrade requires no universal considerations, although it is crucial to understand the possible constraints during the transition. Also, it is vital to examine and determine the compatibility of existing protocols. The key steps...
Organizations seek to ensure their products or services meet the required quality standards to inspire confidence among the users. The mandate is assigned to an independent quality assurance department whose primary goal is to certify that the products or services meet the necessary quality requirements Hartmut & Bernd-Holger. Therefore, the...
In relational databases, there is such a thing as normalization, which is a database design method that allows reducing the database to minimize redundancy. Redundancy of data creates prerequisites for the appearance of various anomalies, reduces performance, and makes data management not flexible and not very convenient. An anomaly is...
A variable in programming is an area in the computer’s memory, which has its name and address, through which it is possible to access data of various types. Declaring a variable requires the programmer to determine its type and name, in some cases – the initial value. The type of...
Sorting is an essential function necessary for placing items in a specific order. Sorting keys are often used in bucket algorithms, which sort items based on their assigned key. However, if the elements in a list are large and complex, it may be challenging to perform this algorithm; hence, major...
The literal meaning of ad hoc relationships is momentary interaction created for specific circumstances. In the world of IT, ad hoc networks do not rely on an established centralized infrastructure but exchange data between different nodes, each of which is involved in routing. Overall, the participants of this relationship adapt...
The term wildcard possesses multiple meanings in different fields, including sports, business, and computing. In computing, a wildcard can be defined as a symbol that can replace one or several words. The two wildcard operators, asterisk and question mark, are often utilized in the information technology (IT) world. The former...
Web services are the implementation of absolutely clear interfaces for data exchange between various applications, which are written not only in different languages but also distributed on different network nodes. If considered from the perspective of network protocols, it can be seen that this is, in the classic case, another...
The history of Islam goes back to the 7th century. The early years of this monotheistic religion are associated with the name of the Prophet Muhammad, a famous theologian, and preacher, who was born in 571 in the Arab city of Mecca. Muhammad acted not only as the founder of...
The worst thing that the Buddha ever did was strive for physical and spiritual perfection. It contradicted the Buddhist ideas of avoiding attachment to the sources of human suffering. Thus, being linked to the material world in the described manner cannot contribute to one’s achievement of enlightenment. Therefore, this event...
The examples of the Buddha’s compassion include the attention to the persons who have not achieved enlightenment yet and the ability to see the sufferings of humanity in order to help individuals. In the former case, it is shown by bringing wisdom to others by sending monks to people so...
The Buddha’s shortcut to spiritual enlightenment can be described by following specific stages of the process. First, one needs to be freed from the cycle of rebirth, which is also referred to as Moksha. This transition means escaping from the sufferings of human life and the ultimate shift from material...
The first and the main complaint of Buddha about Hinduism is the organization of the caste system and its dubious connection to spirituality. According to him, the views on the possibility of reaching salvation through promoting distinctions between people and claiming their need for transferring from one stage to another...
African-Americans in Alabama had established consolation in the spiritual workout of the Baptist faith. The practice of the Baptist faith delivered to them a solid symbol of slavery incongruity with justice and morality. After liberation, the sovereign and quasi-independent worshipers flourished and showed help in the establishing of the convention...
Voodoo was greatly used as the channel of conspiracy. Traditionally, religion delivered hope to African Americans with ethical basics and with visionary power from contemporary judgments. Moreover, Christianity facilitated a sense of the mysterious, to command the supporter’s magic of African Americans working in parallel presented, conjure allowed its experts...
According to the beliefs and assumptions of Muslims, the Qur’an has a talismanic, or, in other words, magical and charmed effect. Thus, the holy book is a source of enlightenment and healing of the soul and body of the believer. In addition, the Qur’an heals hearts by eradicating ignorance and...
The history of African Americans reveals that when most Africans were brought to America as slaves, they were not Christians. However, they gradually converted to Christianity, finding consolation in biblical messages of equality and spiritual deliverance. Although before being transported to the “New World”, slaves were expected to undergo conversion...
As a rule, chapters in the Qur’an are named either after a key, important topic, or theme or after the person’s name who appears in this section only once. In total, there are 114 surahs in the Qur’an, which is of paramount, most important importance – this is what the...
Sin in the African religion is conceptualized as an evil act committed by any member of the society, either young or old, that goes against set religious principles and wishes of ancestral spirits. They believe that sin results in a bad omen and destroys the relationship between the living and...
Semiosis is a field of study concerned with how people and other organisms from this world derive meaning from their surroundings. There are three categories of signs: an icon, index, and symbol, based on how the sign relates to the object. An icon directly resembles the object, and an index...