Consider the looping plume form due to windy conditions, and recall that the Gaussian model presumes a normal curve distribution. What problems do you perceive that a Gaussian model might pose when attempting to exclusively use this model in variable wind areas? Do you think these factors are considered enough in issuing pollution forecasts when frontal systems affect urban areas? Why, or why not? ALSO PLEASE REPLY TO ANOTHER STUDENTS

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Consider the looping plume form due to windy conditions, and recall that the Gaussian model presumes a normal curve distribution. What problems do you perceive that a Gaussian model might pose when attempting to exclusively use this model in variable wind areas? Do you think these factors are considered enough in issuing pollution forecasts when frontal systems affect urban areas? Why, or why not?
ALSO PLEASE REPLY TO ANOTHER STUDENTS

write an article on development of the human placenta Paper must be at least 1250 words.

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Hi, I am looking for someone to write an article on development of the human placenta Paper must be at least 1250 words. Please, no plagiarized work! Implantation is the first step in the development of the placenta. Approximately 6th day after fertilization the blastocyst attaches to the endometrium and the process of implantation begins. Now the trophoblast layer of the blastocyst at the embryonic pole gets differentiated into two layers, an inner layer called cytotrophoblast and an outer layer called syncytiotrophoblast. The syncytiotrophoblast is highly invasive and expands quickly adjacent to the embryoblast, it produces enzymes that erode the maternal tissue enabling the blastocyst to burrow into the endometrium. The endometrial cells undergo apoptosis that facilitates invasion. The process of implantation is completed by the end of the second week and the blastocyst is superficially implanted in the endometrium.

At about day 10 blood-filled lacunae appear in the syncytiotrophoblast which ultimately fuses at day 12 to form the lacunar network, the primordia of intervillous spaces of the placenta, syncytiotrophoblast erodes the endometrial capillaries and maternal blood flows into these capillaries(sinusoids) giving rise to the primordial uteroplacental circulation. The rapidly proliferating cells of cytotrophoblast produce cellular extension that grows into the syncytiotrophoblast giving rise to the primary chorionic villi, mesenchyme soon grows into these primary villi giving rise to secondary villi. The mesenchymal cells soon differentiate into capillaries and blood cells, the villi at this stage are termed as tertiary villi they soon become connected with embryonic heart through vessels that differentiate in the mesenchyme. Cytotrophoblastic cells of the chorionic villi form a cytotrophoblastic shell that surrounds and attaches the chorionic sac to the endometrium. Villi that attach to the maternal tissues through the cytotrophoblastic shell are termed as stem villi from which the branch villi project.

infant mortality in the united states

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I need some assistance with these assignment. infant mortality in the united states Thank you in advance for the help! Here the graph from the data obtained from World Bank shows the decreasing trend in infant mortality rate in the United States from 1960to 2008. This research study will examine three of the general schools of thought which have been advanced in trying to account for the racial difference in infant mortality and suggests a fourth, more promising perspective.

The first common perspective, or school of thought, argues that biological differences between the two groups may be important: Black babies are born smaller than White babies and, therefore, are at higher risk of infant death. While there is a considerable difference (about 1/2 pound) in average birth weight between the races, no evidence exists to suggest that the birth weight difference is biological in nature. On the contrary, substantial evidence exists that racial differences in birth weight are largely dependent upon the differing social and environmental conditions experienced by the populations. In short, little merit is currently granted to the biological perspective.

The second school of thought argues that behavioral differences between the two groups may be important in understanding racial differences in infant mortality. Some observers point to the higher rate of unmarried childbearing and the younger age at which women give birth within the Black community as key reasons for their higher rate of infant mortality. However, married Black women and older Black women do not fare much better (in terms of their infants’ survival) when compared to young, unmarried Black women. In fact, it is acknowledged by the medical community that the best biological age (in terms of infant mortality) to bear children is between 16 and 20. Others point out that many young, unmarried Black women may be having children at an opportune time (especially if they are poor), given their limited educational and employment opportunities, the young age of their own mothers (to better help with childcare), and their own good health (which for many poor women, tends to rapidly deteriorate through the 20’s and 30’s) (Geronimus, 2002).

write an article on recognizing faces Paper must be at least 1250 words.

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Hi, I am looking for someone to write an article on recognizing faces Paper must be at least 1250 words. Please, no plagiarized work! The different processes involved in face recognition, identification, and classification include emotional reaction, categorization, discovery, comparison, credit and title, and recalling. As the moving tribute is concerned, it focuses on the subjective feeling aroused in a person when they recognize a face. Such emotions might involve feelings of joy, anger, hatred, strangeness, or any other surface that the person might possess. Next occurs is the categorization process that distinguishes the character, gender, social status, or mental condition of the person who has been recognized by the person who has been identified. In the discovery stage, a person is either able or unable to realize who the person is by recognizing his or her face. That is to say, the eyes, nose, lips, and other features of the front would be recognized by the person (Rakover & Cahlon, 2001, p.24).

&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp. After the discovery process, a comparison occurs to understand whether the face that has been recognized is the same as the person had earlier known, thus focusing on the degree of similarity in the identified looks. Once these stages are over, the recognition gets fulfilled, and the person’s identification takes place. Here the person is capable of determining other details about the recognized person. The last process involves recalling the face the next time the same person is encountered (Rakover & Cahlon, 2001, p.24). All these processes together complete the face recognition process either manually or in automated technologies.

Roles of Concepts and Categories in Face Recognition, Identification, and Classification:

&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp. Concepts and categories are highly significant in face recognition that involves a detailed understanding of the identification and classification and realizing the real faces when encountered. The images are essential for an understanding of the process that enables the recognition process. As in the previous section, the different associated methods have been studied. It can be understood that each of these steps is essential for knowledge and understanding to use them while recognizing faces. Even in automated cases, these concepts are required.