Saturday, January 25, 2020

Chemical Constituents From Lepidogrammitis Drymoglossoides

Chemical Constituents From Lepidogrammitis Drymoglossoides Li-Yuan Zhang, You-Heng Gao*, Ling-Zhi Ren , Ming-Zhu Wan, Teng-Hua Wang ABSTRACT This report is related to phytochemical investigation about a Chinese fern Lepidogrammitis drymoglossoides. Based on spectroscopic analysis including UV, MS, 1H and 13C-NMR as well as their chemical and physical properties, their structures were identified to be ÃŽ ²-ecdysterone (1), stigmasterol (2), physcion (3), emodin (4), umbelliferone (5), scoparone (6), aesculetin (7), caffeic acid (8), ferulic acid (9), protocatechuic acid (10), pyrocatechualdehyde (11), gallic acid (12), 4-hydroxybenzoic acid methyl ester (13), docosanyl tetracosanoate (14). Compounds 4-6, 9, 12-14 were isolated from the genus Lepidogrammitis for the first time. Keywords: Polypodiaceae; Lepidogrammitis; Lepidogrammitis drymoglossoides; anthraquinones; coumarins; phenolic acids 1. Subject and source Lepidogrammitis drymoglossoides (Baker) Ching is a member of Polypodiaceae family, which is widely distributed in the south of Yangtze River basin and other provinces in southern China, especially in Guizhou, Fujian, Hubei, Guangdong, Guangxi provinces. The whole grass of Lepidogrammitis drymoglossoides was collected from Xinhui City, Guangdong province, P. R. China, in October 2011. The specie was identified by Prof. Chao-Mei Pan, Department of Pharmaceutical Botany, Guangzhou University of Chinese Traditional Medicine. A voucher specimen (LY 20111023) has been deposited with the Laboratory of Phytochemistry, Department of Phytochemistry, Guangzhou University of Chinese Traditional Medicine, Guangdong, P. R. China. The whole grass was smashed by an electrical grinder and dried in a drying oven under the temperature of 60 before extraction. 2. Previous work The medicinal plant is extensively used in the treatment of pharyngalgia, pulmonary tuberculosis, rheumatism arthritis, lymphnoditis, cholecystitis, urolithiasis, traumatic injury, hypertension and furunculosis bloated by the ethnic minorities of Miao, Yao, and Tong (He and Xu, 2007; The Editorial Committee of Chinese Materia Medica, 1999). Previous works revealed that the main chemical component of Lepidogrammitis drymoglossoides is steroids and phenolic acids, triterpenes, anthraquinones and amides are also included (Li Zhifu, 2011). However, little is known concerning the phytochemistry of the specie, especially the bioactive substances, and yet no method has been proposed for the standardization of this herb, which limits the exploitation and commercialization of these medicinal plants. 3. Present work The dried whole grass of L. drymoglossoides (21 kg) was extracted with 95% EtOH two times (each for 2 h) by usingheatingcircumfluencemethod. The extracts were concentrated under reduced pressure to a crude extract, which was further dissolved in water and extracted successively with petroleum ether (P), chloroform (CHCl3), EtOAc and n-BuOH to yield 239.5 g, 132 g, 56 g and 122.5 g of the corresponding extracts, respectively . The petroleum ether fraction (100 g) was chromatographed over silica gel column using P/EtOAc (100:1-0:100) to give 8 fractions (Fr.1-8) based on TLC analysis. Fr.4 was separated on silica gel CC by eluting with P/EtOAc (30:1), and then was purified repeatedly by Sephadex LH-20 column with CHCl3/MeOH (1:1) to obtain 2 (18.4 mg). The chloroform fraction (100 g) was subjected to a silica gel column chromatography (CC) with the gradient (P/EtOAc 100:0–0:100) as eluants to afford 9 fractions (Fr.1-9) based on TLC analysis. Fr.1 was separated on silica gel CC by eluting with P/EtOAc (100:1-0:100), and then was purified by Sephadex LH-20 column with CHCl3/MeOH (2:1) to obtain 3 (18.4 mg).Fr.2 was submitted to silica gel CC eluted with P/EtOAc gradient (100:1, 50:1, 0:1) to give 5 sub-fractions (Fr.C1-C5). Fr.C2 was purified by Sephadex LH-20 column with CHCl3/MeOH (1:1) as eluant to yield 14 (102 mg). Fr.9 was separated on silica gel CC by eluting with P/EtOAc (10:1, 5:1, 1:1, 0:1), and then was further separated by semi-preparative RP-HPLC with mobile phase of CH3CN/H2O (55:45) to afford 4 (mg). The EtOAc fraction (50 g) was subjected to a silica gel CC with using gradient mixtures of CHCl3/MeOH (100:0-0:100) as eluants to afford 10 fractions (Fr.1-10) based on TLC analysis. Fr.2 was submitted to silica gel CC eluted with CH2Cl2/MeOH gradient (100:0-0:100), and then was purified by Sephadex LH-20 column with CHCl3/MeOH (2:1) to obtain 6 (18.4 mg). Fr.3 was subjected to a silica gel CC with using gradient mixtures of CH2Cl2/MeOH (100:0-0:100) as eluants to produce 13 (18.4 mg). Fr.4 was separated on silica gel CC by eluting with CH2Cl2/MeOH (200:1-0:100), and then was purified by Sephadex LH-20 column with CHCl3/MeOH (1:1) to obtain 11 (18.4 mg). Fr.5 was subjected to silica gel CC eluted with CH2Cl2/MeOH (70:1-0:1) to give 4 sub-fractions (Fr.E1-E5). Fr.E2-3 was resubjected to silica gel CC eluting with CH2Cl2/MeOH (50:1-0:1), and then was purified by Sephadex LH-20 column with CHCl3/MeOH (1:1) to obtain 5 (18.4 mg). Fr.E4 was resubmitted sequentially to silica gel CC elutin g with CH2Cl2/MeOH (50:1-0:1), Sephadex LH-20 column with CHCl3/MeOH (1:1) as eluent repeatedly, and preparative TLC with mobile phase of CHCl3/MeOH/ CH2O2 (20:1:0.2) to afford 7 (18.4 mg). Fr.6 was separated on D101 macroporous resin (MeOH/H2O, 0:100, 50:50, 70:30, 100:0) to yield four main fractions(Fr.E1-4). Fr.E1 was then seperated on a reversed-phase C18 column (MeOH/H2O, 0:100-100:0) to give 4 sub-fractions (Fr.ER1-4). Fr.ER1 was subjected to silica gel CC eluted with CHCl3/MeOH (30:1, 20:1, 10:1, 0:1) to give 4 sub-fractions (Fr.ERC1-4). Fr.ERC3 was chromatographed over silica gel column using CH2Cl2/MeOH (30:1-0:1) and followed by Sephadex LH-20 CHCl3/MeOH (1:1) as eluent to produce compound 9 (18.4 mg) and 10 (mg). Fr.ERC4 was further separated by semi-preparative RP-HPLC with mobile phase of CH3CN/H2O-0.3%CH2O2 (20:80) to afford compound 8 (18.4 mg). Fr.8 was separated by D101 macroporous resin (MeOH/H2O, 0:100, 30:70, 50:50, 70:30, 100:0) to yield 5 fractions (Fr.ED1-5). Fr.ED2-3 was submitted successively to silica gel CC eluting with CH2Cl2/MeOH (50:1-0:1), silica gel CC eluting with CH2Cl2/MeOH (30:1-0:1), reversed-phase C18 column (MeOH/H2O, 0:100-100:0), Sephadex LH-20 column with CHCl3/MeOH (1:1) to afford 1 (18.4 mg) and 12 (mg). By comparison of the 1H and 13C NMR spectra data with those reported, compounds 1-14 (Fig. 1) were identified to be ÃŽ ²-ecdysterone (1) (Wu et al., 2006), stigmasterol (2) (Wu et al., 2008), physcion (3) (Qin and Liang, 2013), emodin (4) (Wei et al., 2012), umbelliferone (5) (Zheng et al., 2011), scoparone (6) (Chen et al., 2012), aesculetin (7) (Qian et al., 2007), caffeic acid (8) (Huang et al., 2013), ferulic acid (9) (Wei et al., 2014), protocatechuic acid (10) (Zheng et al., 2006 ), pyrocatechualdehyde (11) (Zhou and Yang, 2008), gallic acid (12) (Li et al., 2012), 4-hydroxybenzoic acid methyl ester (13) (Zhang et al., 2011), and docosanyl tetracosanoate (14) (Zhang Qian, 2010). 1 2 3: R=CH3 4: R=H 5: R1=H, R2=H 8: R=H 10_R1=H, R2=OH 13 6: R1=OCH3, R2=CH 9: R=CH3 11: R1=H, R2=H 7: R1=OH, R2=H 12: R1=OH, R2=OH 14 Fig.1. 14 compounds from Lepidogrammitis drymoglossoides. 4. Chemotaxonomic significance The main chemical component types of L. drymoglossoides in previously research are steroids and phenolic acids. This current research discusses the isolation and identification of a series of chemical constituents from L. drymoglossoides, compounds 1-14 were classified as steroids (1, 2), anthraquinones (3, 4), coumarins (5-7), phenolic acids (8-13) and fatty acids (14). Among them, compounds 4, 5, 6, 9, 12, 13, 14 were isolated from this species for the first time. In addition, compounds3, 4, 5, 6, 7, 9, 12, 13, 14 have not been reported in any species of the genus Lepidogrammitis. And also this is the first report of compounds 3, 4, 5, 6, 7, 9, 12, 13, 14 from the family Polypodiaceae. There are about 5 species in the genus Lepidogrammitis which are both native to China, and only one specie spreads to India, Burma, Laos and Vietnam (Kunming Institute of Botany, Chinese Academy of Sciences, 2005). L. drymoglossoides mentionedabove is the only one that be studied up to now. To the best of my knowledge, other species in genus Drynaria, Pyrrosia Mirbel and Lepisorus from the family Polypodiaceae have been studied more in recent years home and abroad. Drynaria mainly contains flavones, triterpenoids and phenylpropanoids. Thechemicalcomponentsisolated from Pyrrosia Mirbel include mainlyflavonoid glycosidesand xanthanes. Several of the compounds isolated in this study have been previously isolated and identified from genus mentionedabove. For example, ecdysterone (1) were isolated from L. marginatus, L. thunbergianus, L. longus, L. contortus, L. macrosphaerus, L. albertii and L. ussuriensis (Zhang et al., 2012; Xu Dongying, 1997; Yao et al., 2004; Zhang Xiaojing, 2012; Ch oi et al., 1999). Stigmasterol (2) has been identified from P. calvata (Zheng et al., 1999) and P. gralla (Zheng et al., 1998) while caffeic acid (8), protocatechuic acid(9) and protocatechuic acid(10) have been obtained from R. Drynariae, P. petiolosa and P. sheareri (Han and Wang, 1984; ShanghaiFirstMedical College, 1973; Liang et al., 2010; Wang et al., 2003). But there are no reports of physcion (3), emodin (4), umbelliferone (5), scoparone (6), aesculetin (7) in the family Polypodiaceae. In addition, coumarins is a rare constituent in ferns though previously obtained from Polypodium hastatum Thunb., a fern of the same family Polypodiaceae (Yao et al., 2012). Identification of these class of anthraquinones (3, 4) and coumarins (5-7) indicates that they would be used as chemotaxonomic markers for the species L. drymoglossoides within the family. And this investigation may supply characteristic constituents in this genus. But more phytochemistry studies on it are needed. Acknowledgements This project was financially supported by a grant from Zhongshan Science and Technology Planning Project of Guangdong province (No. 20113A082). References He S.Z., Xu W.F., 2007. Traditional Chinese medicine resources in Guizhou, Guizhou, 192. The Editorial Committee of Chinese Materia Medica, 1999. Chinese Materia Medica, Shanghai, 229-231. Li, Z.F., 2011. Chemical constituents and Antituberculous activity Study of Lepidogrammitis drymoglossoides (Baker) Ching. GuiYang College of Traditional Chinese Medicine, GuiYang. Wu, J.J., Wang, H., Ye, W.C., Zuo, X.F., Zhao, S.X., 2006. Journal of China Pharmaceutical University. 37, 487-490. Wu, X., Xia, H.L., Huang, L.H., Chen, D.D., Chen, J.Y., Weng, H.T., 2008. Journal of Chinese Medicinal Materials. 31, 990-992. Qin, C.M., Liang, H.X., 2013. Chin J Mod Drug Appl, Jan. 7, 1-2. Wei, H., He, C.N., Peng, Y., Ma, G.X., Xiao, P.G., 2012. China Journal of Chinese Materia Medica. 37, 1249-1253. Zheng, Z.G., Wang, R.S., Tang, D., He, B., Gu, P., Duan, T.T., Zhu, Q., 2011. Nat Prod Res Dev. 23, 399-400,403. Chen, B.C., Cai, G.M., Yuan, Y., Li, T.T., He, Q., He, J.F., 2012. Chinese Journal of Experimental Traditional Medical Formulae. 18, 98-100. Qian, Z.M., Li, H.J., Qi, F.F., He, Q.H., Li, P., 2007. Chin Pharm J. 42, 1132-1134. Huang, J., Wang, G.C., Li, T., Li, Y.L., Ye, W.C., 2013. Chinese Traditional and Herbal Drugs. 44, 1237-1240. Wei, L.B., Chen, J.M., Zhou, G.X., 2014. Nat Prod Res Dev. 26. 43-46, 59. Zheng, W., Zhou, C.X., Zhang, S.L., Weng, L.J., Zhao Y., 2006. China Journal of Chinese Materia Medica. 31, 892-894. Zhou, Z.J., Yang, J.S., 2008. W C J.P S. 23, 265-266. Li, Y.Q., Lei, X.X, Feng, Y.L., Xu, Q.M., Xu, L.Z., Yang, S.L., 2012. Chin Pharm J. 47, 261-264. Zhang, Z., Xiao, H., Jin, X.F., Yang, Y.S., Liu, G.M., 2011. Lishizhen Medicine and Materia Medica Research. 22, 1040-1041. Zhang, Q., 2010. The Studies on the Chemical Constituents in leaves of Sorbus tianschanica Ruper. Xinjiang Medical University, Urumchi. Kunming Institute of Botany, Chinese Academy of Sciences. 2005. Flora Yunnanica, Beijing. 21, 341. Zhang, X.J., Ma, J., Zhu, Z.Z., Zhang, H., 2012. Chinese Journal of Spectroscopy Laboratory. 29, 1832-1837. Xu, D.Y., 1997. Information on Traditional Chinese Medicine. 20-21. Yao, Z.S., Xiong, Y.K., Yu, B., 2004. Journal of Chinese Medicinal Materials. 27, 718-721. Zhang, X.J., 2012. Research about the extraction of chlorogenic acid from 5 plants in Lepisorus and the antioxidant activity of alcohol extract. SHAANXI NORMAL UNIVERSITY, Xian. Choi, Y.H., Kim, J., Choi, Y.H., 1999. Phytochemistry. 51, 453-456. Zheng, X., Yu, L., Liao, R.F., Zhu, B.Y., Xu, Y.L.,Xu, J., 1999. Chinese Traditional and Herbal Drugs. 30, 253-254. Zheng, X., Xu, Y.L., Xu, J., 1998. China Journal of Chinese Materia Medica. 23, 98-99. Han, J.S., Wang, M.S., 1984. Journal of Nanjing College Pharacy. 15, 40-43. ShanghaiFirstMedical College, 1973. Journal of Pharmaceuticals. 1-13. Liang, Y.H., Ye, M., Zhang, L.Z., Li, H.F., Han, J., Wang B.R., Guo, D.A., 2010. Acta Pharmaceutica Sinica. 45, 874-878. Wang, N., Wang, J.H., Cheng, j., Li, X., 2003. Journal of Shenyang Pharmaceutical University. 20, 425-427. Yao, H.K., Duan, J.Y., Ai, F.W., Li, Y., 2012. Biochemical Systematics and Ecology. 44, 275-278. [1]Corresponding authors. Tel.:+86 20 39358083. E-mail addresses: [emailprotected](Y.-H. Gao).

Friday, January 17, 2020

One of the Boys: Homosexuality in the Military during World War II Essay

All over the history of the United States’ military, its handling of sexual minorities such as homosexuals has changed both as popular and medical knowledge regarding homosexuality have changed and as the requirements of the armed forces themselves have altered. According to Paul Jackson (2004) in his book â€Å"One of the Boys: Homosexuality in the Military during World War II†, regulations have more and more shifted away from criminal trial to the release of homosexual military servicemen in reaction to varying opinions among medical professionals regarding the root and true causes of homosexuality. Nevertheless, Jackson (2004) claimed that within an institution that has formally forbidden the service of sexual minorities, particularly homosexuals ever since the 1940s, and the real execution of the ban has varied across branch of services and time, in addition to commanders. Throughout the time of war, rates and levels of dismissal have dropped as manpower requirements have increased as well. Many instances subsist of gay and lesbian military servicemen who have served with the information and consciousness of their commanders and colleagues. Moreover, not merely does a service member’s likelihood or opportunity of being dismissed differ by branch of service, but female military personnel likewise consist of an unequal number of those estranged under the rule. In writing about gay and lesbian history, the historian should decode and interpret the coded phrases that were employed to cover up homosexuality, and I believe that Jackson has done a commendable and marvelous job of this. His book is a thoroughly-researched analysis of homosexuality in the Canadian armed forces for the period of the war years. In writing the book, it is Jackson’s aim to investigate the existence of homosexuality in the military during World War II and to be able to share the result of his study to the readers. I can say that he has achieved these goals because this work has extensively studied the subject and is an outcome of hours of studying police reports, court-martial transcripts, conducting dozens of interviews, and pouring over psychiatric. In writing this book, I can say that Jackson has discovered and exposed a lot of homosexual experiences, and therefore has carried out an important involvement both to the social history and the queer history of the World War II. According to Jackson, throughout the period of World War II, military leaders engaged in extensive debate regarding the practices, rules, and policies connected to homosexuality in the armed forces, and substantial amendment of regulations took place all over the services. Furthermore, World War II needed a mass mobilization not like any formerly observed in the United States’ history. In fact, as asserted by d’Emilio (1998), the Selective Training and Service Act of 1940 caused the instant registration of over 16 million men. Meanwhile, Jennings (1994) and the National Defense Research Institute (1993) said that discussions and debate regarding homosexual policies originated both from the prevalent disparity in the treatment of individual cases and the United States government’s dependence on the psychiatric establishment to help in discharging soldiers who were regarded as ineligible or unfit to serve. On authority, as I have previously said, the author presented several ideas about the subject by means of employing a wide array of sources such as personnel and psychiatric files, long-closed court martial records, oral histories, films, and unit war diaries. Jackson was able to consistently present his findings and views as he relates the struggle and hardships of queer military servicemen of all branches and ranks of the Canadian military to blend in and integrate and prevent losing their reputations and careers. According to Jackson, homosexual men were frequently well-liked and accepted within their units. However, if charged of homosexual behavior, they were asked to undergo psychiatric tests, prison terms, courts-martial proceedings, and finally dishonorable and shameful discharges. I think that Jackson’s ideas are credible and the findings and information are clearly presented. On perspective, I believe that Jackson’s work is not tainted by a clear bias that ignores or understates evidence and thus not favor one perspective alone. Moreover, the book imparts statements with adequate evidentiary support. Meanwhile, regarding the content of the book, when you read the book, it seems as if it is two books merged into one: on the one hand, it is a social history, and on the other hand, it is a policy analysis. The first three chapters of the book discuss how the institutions of the Canadian military tried to control homosexuality. In Chapter 1, Jackson examines the somewhat baffled efforts of the military to describe and delineate its policy regarding homosexuality. Next, Chapter 2 looks at the court martial proceedings of those military servicemen accused of homosexuality-related legal wrongdoings. Then, Chapter 3 of the book illustrates how military psychiatrists attempted to stress and affirm their authority and power over homosexuality as a medical concern. The last two chapters seemed to be a methodical reading of their respective principal sources, which are psychiatric examinations and court martial transcripts. I believe that Jackson analytically transports the reader through the a variety of stages of the psychiatric evaluation and court martial processes, giving personalized and detailed descriptions of how these two branches of the military coped with the concern of homosexuality, the first as a medical concern and the second as a moral and legal one. This difference between approved and formal military rule denouncing homosexuality and the usual acceptance of homosexual behavior is revealed in the first chapter of Jackson’s book, which looks at the a variety of aspects of the military’s rule on homosexuality as created by the military police, the National Film Board, the RCAF, and the medical services. The general organization of the first chapter of the book portrays a somewhat inconsistent and disorganized methodology in dealing with homosexuality in the Canadian military, which included cruel and brutal investigations on the one hand, and customary denials on the other hand. Moreover, Chapter 1 highlights entertainingly in the author’s ironic so-called â€Å"Routine Order† on homosexuality, wherein he explains the de facto military rule on homosexuality, without an official and formal rule. According to Jackson, the de facto military rule was to disregard or renounce homosexual behavior except if the person behind it was an eccentric or nonconformist or else has a behavioral problem. The de facto rule says that any punishment must be manageable or light for military men in combat units, and heavy and grave for noncombatants, except if they were popular and accepted. Persistently, the author thinks that the Canadian military attempted to disregard homosexuality except if the persons were difficult to handle or were showing their sexuality. Jackson says that this implicit rule originated from the 1940s concept or notion of sexuality, which states that every soldier was supposed or assumed to be male, heterosexual, and masculine, and in the absence of tremendous proof or confirmation to the contrary, would be considered as such. Meanwhile, the second half of the book is mainly a social history of homosexuality in the armed forces in the period of World War II. The book’s Chapters 4 and 5 discuss the experiences of queer and odd military servicemen in Canada and abroad; while chapter 6 inspects the effect of homosexuality on the military’s morale, cohesion, and esprit de corps. Personally, I think that these chapters of Jackson’s book depended mainly on war diaries and oral histories as well as the sources utilized for the previous chapters, and illustrate clear pictures of the experiences of queer military servicemen during wartime. Definitely, I think that these sections of the book evoke Desmond Morton’s outstanding work regarding the experience of Canadian military servicemen during World War I. By means of utilizing the personal reminiscences of various veterans, a number of whom are explicitly homosexual, whereas others are married and already have grandchildren, the author investigates the numerous aspects of the homosexual encounters and experiences that happened during the war, the stories and accounts of coming to consciousness of a different sexual orientation and behavior, the conflicting responses to these encounters, and the truthful account of brief sexual frolics in London hotel rooms for common enjoyment. Personally, I think that of specific concern in these parts in the book is Jackson’s portrayal of the open sexuality in England during wartime that would surely be interesting for British historians. In his book, Jackson exposes the label that homosexuality in the military was simply the result of an all-male situation, or that these experiences constantly concerned a blend of a masculine top and feminine â€Å"queen. † Despite the fact that this was the conventional representation and impression of homosexuality during the war, it was far from being its lone sign or even the prevalent one. Based on the investigations of Jackson, he found out that it is apparent that there was a stern unwillingness or reluctance on the part of authorities to dismiss homosexuals from military service. Jackson discovered that courts martial were mainly employed to discourage homosexual activity, but hardly ever led to the dismissal of noncommissioned military servicemen. Generally, the serviceman would be condemned and punished to serve time in a detention center, after which he would be permitted to go back to service. Meanwhile, military officers were more possible to be dismissed if they are found guilty, but were on the other hand much less possible to be sentenced. Jackson asserts that the motive or explanation here agrees with the explanation as to why psychiatrists were extremely hesitant, compared with the courts martial, to proclaim that a military officer or serviceman was homosexual. Furthermore, Jackson suggests that the medical archetype of homosexuality structured a homosexual as an antisocial, degenerate person a point of view revealed in the moral norms of the court martial officers. Nevertheless, it was difficult to resolve this idea with the healthy, productive military men who stood under inspection and scrutiny; thus, a lot of these men were set free, particularly when they had colleagues ready to guarantee for their good character. Regarding the effect of homosexuality on the military’s morale, esprit de corps, and unit cohesion, the author not astonishingly discovered that in recognized units a court martial of a charged military serviceman was more often than not more destructive to morale than the homosexual military man himself. Jackson said that frequently these men were well liked and well incorporated, and their fellow military servicemen hesitant to bear witness against them. Furthermore, the concern about sexuality was more difficult in training camps, when bonds had not yet been established. Nevertheless, Jackson also said that sexuality was not any greater an obstacle than a person’s behavior, ethnicity, race, or a lack of physical ability, all of which caused challenges to building unit cohesion throughout this period. In the meantime, I believe that a remarkable amount of research and study was obviously done in completing Jackson’s book, and I would be negligent and thoughtless if I will not talk about the visual part or element of his book. I think that the author portrays a remarkable and extraordinary array of war art, as well as several masterpieces by gay war artists that demonstrate facets or characteristics of homosexuality and the homosocial ties or connection that were established during the period of the war. A lot of these works or creations show and exemplify same-sex emotional connections and homoeroticism in the military more noticeably and openly than a chapter of text can illustrate. Together with imagery and descriptions from photos of young soldiers, stills from NFB films, and drag shows together, these pictures and examples add a rich and remarkable visual component or facet to the text. Meanwhile, Jackson said that the ban of the service of sexual minorities ever since the 1940s has not caused their discharge from the U. S. military. A lot of service members are not aware that they are homosexual when they enlist; while others do not regard themselves as homosexual, although their actions fits the military’s stringent definition. A number of these military servicemen who do recognize as sexual minorities join anyhow since they would like to serve their nation or as a consequence of the job prospects the military offers. The majority of these military servicemen work in virtual silence, informing just other gay and lesbian service members or a small number of trusted heterosexual contemporaries. Then as Sobel et al. 2000) and Berube (1990) said, despite the fact that military inquiries have led to the discharges of more than 100,000 service members since the 1940s, experts have the same opinion that a lot more have worked without being discharged. Moreover, as societal outlooks toward homosexuality have generally turned out to be more open-minded, there has been growing evidence and confirmation of acceptance among several heterosexual military personnel also. Nevertheless, the authorized and certified policy mandates removal of all recognized homosexual military servicemen, notwithstanding conduct and irrespective of their record. Even those personnel members who undergo acceptance from their contemporaries stay to be in danger that a change in command, an unanswered advance, or the antagonism of one person could bring about the end of their military careers. In the book, Jackson (2004) said that in 1943, new Navy regulations focused on homosexuals instead of sodomist. In addition, the National Defense Research Institute (1993) said that criminal penalties for sodomy were not, nevertheless, in fact removed. Those who engaged in same-sex sexual behavior were either to be administratively discharged or allowed to resign, unless their behavior was violent or involved a minor. Berube (1990) claimed that the Navy directive likewise noted that the policy applied to the Women’s Reserve also. Under Army policies, those who were not â€Å"confirmed perverts† and who were viewed to have a salvage value were to be returned to duty following proper disciplinary action. Then, by the year 1944, the medicalization of homosexuality was finished. Berube (1990) also asserted that the Army circular widened the category of offenders who may possibly be reclaimed from those who had gone off track to the true or confirmed homosexuals whose cases practically point to the likelihood of reclamation. In addition, the Navy’s 1944 circular introduced for the first time in that military branch the idea of those who have homosexual tendencies and stated that even if no sexual contact in fact took place, those with homosexual tendencies were to be recognized and prohibited from serving in the military or dismissed upon discovery (National Research Defense Institute, 1993). Personally, I believe that the reader should likewise praise Jackson for his utilization of explicit and frank language in explaining and illustrating homosexuality in the period of World War II. I personally think that not merely does this suggest or reveal the real language employed in the records Jackson discovered, but it is suitable or proper to the sexually-charged work he is discussing and doing. Moreover, I also think that the author conveys the story and information about the subject with enough wit and candor. Therefore, I am awed that Jackson managed to obtain the subtitle for his segment on inter-rank relationships, entitled â€Å"Officers and their Privates† past his editor. All in all, I extol Jackson for his interesting and frequently intimate story and description of the experiences and experiences of homosexual military servicemen that will be interesting to both a general and academic readers.

Thursday, January 9, 2020

Racism, Racism And The Civil Rights Movement - 1009 Words

Racism is Evident in American Society Today The history of the United States in regard to racism and discrimination is no secret. Children are taught about segregation, slavery, and the Civil Rights Movement like the events were purely in the past. In part the events were in the past; however, the results of said events are not. As Americans, we live in a nation with a rough history and, in order to keep growing together, we cannot forget what has happened. Granted, racism is not extinct, but it is most definitely not the norm it was 50 years ago. Many people are not aware of how much racism still exists in our schools, workforces, and anywhere else where social lives are occurring. According to Derrick Bell’s book, Faces at the Bottom of the Well, Bell uses fiction stories to show that racism still exist but has a different form. In American society, racism is still evident today in racial symbols, covert racism and affirmative action. The racial symbols are used in various ways, including holidays, representing people and movements. People assume that by having an Independence Day, every person has the right to be free while some people are still afraid when it comes to freedom. â€Å"The fact is, though, that most whites and lots of black folks rely on symbols to support their belief that black person has come a long way since slavery and segregation to the present time.† Black History month will be a great example, back then people were happy that those kinds of holidaysShow MoreRelatedRacism And The Civil Rights Movement984 Words   |  4 PagesWhat is racism? By definition racism is the prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one s own race is superior. This is a big issue in America today. Many Americans believe that racism is over in this country because it had gone through a civil rights revolution but those people are more than wrong. Some people believe that just because America went through a civil rights movement that all racism is gone. That everything wasRead MoreRacism And The Civil Rights Movement2014 Words   |  9 Pagesrace to distinguish him or her as inferior. Racism is a prominent epidemic that has especially affected African Americans in the development of America. Africans were torn away from their homes and brought to America in the 17th century to work as slaves, where they experienced various forms of chastisements and torture. Then in 1860, Abraham Lincoln was elected president where he expressed his strong disposition against slavery, which then began the Civil War in America. Lincoln abolished slaveryRead MoreDifference Between Racism And The Civil Rights Movement Essay1274 Words   |  6 Pagesbeings. However, changed started to hatch when Dr.Martin L. King first evoked the Civil Rights Movement initiating the end of racial disunion. Although the signs have been taken down, and separatio n has decreased, other adjustments have been made in current workforce, income, educational studies and the justice system. Comparing the two will allow us to determine the difference between racism today and racism from a little over sixty years ago. Referring back to six decades ago, education forRead More Racism versus Civil Rights Movement Essay examples1446 Words   |  6 PagesKing, page666 The 1960s were a time of great turmoil in America and throughout the world. One of the main topics that arouse was black civil rights. In my essay I plan to compare the difference of opinion between these particular writers and directors, towards racism and the civil rights movement in the 1960s The movement truly got underway with civil rights leaders such as Martin Luther King jr. and Malcolm X in the early 1960s. Students who wanted to bolt on the equality and protestRead MoreEssay on Changes Brought About by the Civil Rights Movement1095 Words   |  5 Pageswhich is racism. Racism happened a lot at United State, the whites treated the African-American badly and called them blacks or niggers. Despite the fact that racism occurred a lot, not everyone supported and followed racism, some protested, some stood up to fight. Many actions were done back then for the blacks to earn back their pride and their rights as americans. The Civil Right Movement improves the environment of the colored people in those small towns and earned them many rights, it also decreasedRead MoreThe Civil Rights Movement : Martin Luther King, Jr. And Rosa Parks1546 Words   |  7 PagesThe Civil Rights Movement is often remembered in American history as an era of unity and struggle. Martin Luther King, Jr. and Rosa Parks are often the figures that get the most recognition from this period. However, there are many leade rs from the Civil Rights Movement that get overlooked. Even MLK toward the end of his life is glossed over for the â€Å"version† that gave the famous â€Å"I have a dream† speech. In truth, there was a fair amount of division between the Black Power Movement and the IntegrationRead MoreRacism Is A Major Issue And Problem That Has Plagued The United States Of America1551 Words   |  7 PagesRacism is a major issue and problem that has plagued the United States of America for years. Racism has been around in our country since well before the Civil war and even today we still have people who are prejudice towards other races, but discrimination and other major issues had finally become illegal in the end of the 1960’s with the civil rights movement. During the civil rights movement we had many African American leaders and people who were fighting for civil rights within American. OneRead MoreRacism During The Civil War973 Words   |  4 Pages Racism is an issue that has plagued in country from the day it was declared the United States of America. Whether it comes in the form of slavery, forced segregation or political racism, it is still here. Racism can be seen throughout our history from slaves picking cotton in the south to Jim Crows laws preventing slaves from having equal rights to current days where we have things such as affirmative action and movements such as Black Lives Matter. In the beginning of our country, we began ourRead MoreRacism And The World s Greatest Issues Today Essay1270 Words   |  6 PagesRacism continues to be one of the world’s greatest issues today. Many individuals are not aware of how much racism still exists in our schools, workplaces, and anywhere else where social lives are prevailing. It is obvious that racism is unacceptable as it was in the past but it sure has not disappeared. Racism very much exists everywhere and it is about time that individuals start thinking about solutions to this problem. Many people assume that it depends on if an individual was brought into theRead MoreThe Civil Rights Movement Of America Essay1648 Words   |  7 PagesTake a look around you. Imagine the world now, then again from fifty to a hundred and fifty years ago. Much has changed and much has stayed the same. Plenty of issues that were prevalent so long ago are still lingering around today such as racism, discrimination, white supremacy. We fight constant battles fighting these issues whether its educating others or defending ourselves from it. It was only one hundred and one years ago that we saw D.W. Griffiths Birth of a Nation hit the silver screens.

Wednesday, January 1, 2020

Description Of A Virtual Meteorological - 1604 Words

Virtual Meteorology 101 Name - Julia Mariano Give a definition of weather: The atmosphere in a place and time in regards to heat, dryness, sunshine, wind, rain, etc. Give a definition of climate: The weather conditions in an area over a long period of time. What do the red lines along the edge represent? What do the blue lines along the edge represent? The red lines along the edge represent the warm air rising, and the blue lines along the edge represent the cold air falling. What is the Coriolis Effect? When air undergoes a deflection from it’s path, and it is a result of earth’s rotation. Which way does the Coriolis Effect bend the winds in the Northern Hemisphere? The wind bends in the Northern Hemisphere to the right. Which way does the Coriolis Effect bend the winds in the Southern Hemisphere? The wind bends in the Southern Hemisphere to the left. What factors determine how much the winds bend? Factors that determine how much the winds bend are the latitude and the speed the air is moving at. Which hemisphere is shown and which way are the winds bending? The Northern Hemisphere is shown. The winds are bending to the right. Do winds blow faster or slower in Florida compared to the equator? Explain why. Winds blow slower in Florida compared to the equator. This is because Florida winds only blow 930 mph, and it is because of the Coriolis effect (slower speed = slower wind). Which way do hurricanes and tornadoes spin in the Northern Hemisphere?Show MoreRelatedEngineering Meteorological Observation Stations At Aerodromes9284 Words   |  38 Pagesongoing efforts and collaborations to manage the European sky, the weather observation and forecasting for the European aviation area. Thereafter it analysis what is expected from Aeronautical Meteorological Observation Stations at aerodromes with regards to the aggregation and dissemination of meteorological observation data and look into the data units and the acquisition sensors needed for the different types of observations, measurements and computations. The responsible authorities, aggregationRead MoreComputer Graphics4299 Words   |  18 Pagesmanipulating visual content. Over the past decade, other specialized fields have been developed like information visualization, and scientific visualization more concerned with the visualization of three dimensional phenomena (architectural, meteorological, medical , biological, etc.), where the emphasis is on realistic renderings of volumes, surfaces, illumination sources, and so forth, perhaps with a dynamic (time) component. History The phrase â€Å"Computer Graphics† was coined in 1960 by WilliamRead MoreWhy Should We Use Gis? Essay2004 Words   |  9 Pagesvoluntary sectors for a wide variety of applications. Private Sector-Location Analytics In the business industry GIS is used for a wide variety of industry streams, it can be used to calculate risks for insurance purposes, create models of virtual gaming worlds, and locate ideal retail site location. Finding the most suitable retail site is vital for the success of any business as site is the most permanent factor of any business and difficult to change(Li, 2014). Applebaum was amongst theRead MoreThe Theme of Nature in Frankenstein Essay2231 Words   |  9 Pagesscary. The creature is can be beautiful through his acts of kindness, like helping people, but also is unattractive and can look and be grotesque. In the essay, â€Å"Frankenstein and Mary Shelley’s â€Å"wet ungenial summer†Ã¢â‚¬ , Phillips states, Some of her descriptions were later incorporated into her novel. In another letter to her sister Fanny, on June 1st 1816, Mary wrote: The thunder storms that visit us are grander and more terrific than I have ever seen before. We watch them as they approach from the oppositeRead MoreApplications of Smart Dust3970 Words   |  16 Pagesoperate from a power source integrated with the platform. The MEMS has major markets in automotive pressure sensors, medical sensors and process control sensors and also the MEMS sensor technology are used to build micro motors. Description of working of Smart Dust Smart Dust technology consists of a single package with the following components integrated into it as follows: MEMS sensors, semiconductor laser diode, and MEMS beam–steering mirror for active optical transmission, a MEMSRead MoreAccounting Information System Chapter 1137115 Words   |  549 Pagesprovides financial information as well as trend information. This allows creditors to project financial solvency and to evaluate the company’s ability to repay loans. 3. Employees. The annual report gives the employees information such as a description of the companys pension plan and the employee stock incentive plan. This gives employees a base from which to compare their benefits program to those of other companies. Annual reports also provide employees with a year-end review of the resultsRead MoreOrganisational Theory230255 Words   |  922 Pages x Contents Chapter 5 Postmodernist organization theory: new organizational forms for a new millennium? Introduction What is postmodernism? Is postmodernism anything new? The history Post-industrialism and the information society The virtual organization Neo-fordism, flexible specialization and post-fordism The regulation school Institutionalist school The ‘managerialist’ school The flexible firm – critique Postmodern organizations – the work of Stewart Clegg and Paul Heydebrand Conclusions