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Some observations about quantum chemistry software GAUSSIAN 关于量子化学高斯软件的一些观察
Pub Date : 2019-04-03 DOI: 10.15406/oajs.2019.03.00134
Mohit K. Sharma
In a cosmic object having molecules, kinetic temperature in general is very low; few tens of Kelvin. Thus, one is concerned with the rotational levels in the ground vibrational state and ground electronic state. The rotational and centrifugal distortion constants, electric dipole moment can be used for calculation of energies of rotational levels and radiative transition probabilities (Einstein A-coefficients) for radiative transitions between the levels. We have investigated some molecules where laboratory data are available and for the same molecules we have obtained the data with the help of GAUSSIAN also. We have found that for some molecules, the two sets of data are in good agreement whereas for some molecules, they differ very much. As the laboratory data are the most reliable, one would like to use the GAUSSIAN data only in absence of the laboratory data. Thus, an obvious question arises how to decide the reliability of GAUSSIAN data. We are aware of the fact that the frequencies of spectral lines obtained from the GAUSSIAN data are not as accurate as required by the astronomers. However, the GAUSSIAN data can play important role in getting qualitative results about a molecule. We could not succeed in running the CCSD and CCSD (T) methods for the GAUSSIAN, as the computer program broke down each time during the execution. Therefore, we have employed the functional B3LYP method, i.e., Becke’s three parameter exchange function B3 (Becke1) with Lee, Yang and Parr’s gradient corrected exchangecorrelation functional.2
在有分子的宇宙物体中,运动温度通常很低;几十开尔文。因此,人们关心的是基振态和基电子态的旋转能级。旋转和离心畸变常数、电偶极矩可用于计算旋转能级的能量和能级间辐射跃迁的辐射跃迁概率(爱因斯坦a系数)。我们已经研究了一些有实验室数据的分子,对于同样的分子,我们也利用高斯函数获得了数据。我们发现,对于一些分子,这两组数据非常一致,而对于另一些分子,它们差别很大。由于实验室数据是最可靠的,所以在没有实验室数据的情况下,人们只希望使用高斯数据。因此,一个明显的问题出现了,如何确定高斯数据的可靠性。我们知道,从高斯数据中得到的谱线频率并不像天文学家所要求的那样精确。然而,高斯数据在得到分子的定性结果中起着重要的作用。由于计算机程序在每次执行过程中都会出现故障,我们无法成功地运行高斯函数的CCSD和CCSD (T)方法。因此,我们采用泛函B3LYP方法,即Becke的三参数交换函数B3 (Becke1)与Lee、Yang和Parr的梯度校正交换相关函数
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引用次数: 0
Relation of normal body temperature with cheek dimples 正常体温与脸颊酒窝的关系
Pub Date : 2019-04-01 DOI: 10.15406/oajs.2019.03.00133
Hafiz Muhammad Noman Ajmal, M. Qadir
Body temperature is defined as the ability of our body to generate heat. Our body maintains its temperature within a moderate range even the outer temperature of environment is change. Like when we are feeling too hot, our body starts sweating to maintain its temperature within optimum range and the evaporation of sweat cools our body.5 When we feel too cold, the surface area of our blood vessels reduced to save heat by decreasing blood flow. We start shivering and by trembling of muscles our body generate more heat. Normal temperature of human body is 98.6°F or 37°C. It is an average body temperature and it may be above or below 1°F or 0.6°C depending upon the activity of body. Thermometer is a device used to measure body temperature either in Fahrenheit (°F) or degree Celsius (°C). We can measure body temperature from different parts of our body like armpit, mouth, the ear and the forehead.6 To take temperature reading from rectum is the most accurate way of measuring body temperature. If body temperature is less than the normal body temperature, this condition is said to be hypothermia. There are different reasons of hypothermia like being out in cold or excessive use of alcohol and some disorders like low thyroid. If body temperature is more than normal body temperature, this condition is known as fever or heatstroke. When heatstroke occurs human body fails to control its temperature within normal range and the temperature of the body keep rising. Heatstroke is deadly even it cause dehydration and the organs of body stop working. We need special medical treatment whenever we face this conditions.7–9
体温被定义为我们身体产生热量的能力。即使外界环境的温度发生变化,我们的身体也能将体温保持在一个适中的范围内。就像当我们感觉太热的时候,我们的身体开始出汗以保持温度在最佳范围内,汗水的蒸发使我们的身体降温当我们感到太冷时,血管的表面积会减少,通过减少血液流动来保存热量。我们开始颤抖,通过肌肉的颤抖,我们的身体产生更多的热量。人体的正常体温是98.6华氏度或37摄氏度。这是一个平均体温,根据身体的活动,它可能高于或低于1°F或0.6°C。温度计是一种测量体温的设备,可以用华氏度(°F)或摄氏度(°C)来测量体温。我们可以从身体的不同部位测量体温,如腋窝、嘴巴、耳朵和前额直肠测温是测量体温最准确的方法。如果体温低于正常体温,这种情况被称为低体温症。体温过低有不同的原因,比如在寒冷中外出或过度饮酒,还有一些疾病,比如甲状腺功能低下。如果体温高于正常体温,这种情况被称为发烧或中暑。中暑时,人体不能将体温控制在正常范围内,体温不断升高。中暑是致命的,即使它会导致脱水和身体器官停止工作。每当我们遇到这种情况时,我们都需要特殊的治疗
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引用次数: 0
Virtual reality in bioinformatics 生物信息学中的虚拟现实
Pub Date : 2019-03-29 DOI: 10.15406/oajs.2019.03.00132
Pritee Chunarkar Patil, Tanisha Batra
Virtual reality (VR) is an influencing cyberknowledge subject, occurring within an imitated environment that integrates mainly auditory and visual, but also additional kinds of sensory feedbacks. Virtual Reality linked topics play a main role in several research areas. Bioinformatics generally deals with biological macromolecules, the nominal creatures of existence; thus, visualization displays a main part in the study. The use of stereoscopic interpretation has remained for an extended time for envisioning molecular structures, coming reverse for the former buildup of VR equipment’s was done before the CAVE was designed and Head-Mounted Displays (HMD) were available at a reasonable price. Generated by the accomplishment of novel, current HMDs like Oculus Rift as well as HTC Vive, Virtual Reality contains lately regained countless interest. Contrarily, a novel manufacture of significant “computational microscopes” has been recognized, for instance the CAVE2, producing outsized, just about 360 degree-spanning visualization services. Furthermore, in the earlier period these approaches were restricted to cost-intensive proficient visualization services. The arrival of fresh reasonably priced, and frequent mobile technologies, provides elevated probable for using related approaches on a regular basis for every day research. Visual Analytics is productively being used for numerous years to examine complex and heterogeneous datasets. Immersive Analytics combines these approaches now with new immersive and interactive technologies.1–3
虚拟现实(VR)是一门影响网络知识的学科,它发生在一个模拟的环境中,主要集成了听觉和视觉,但也有其他类型的感官反馈。虚拟现实相关课题在多个研究领域发挥着重要作用。生物信息学一般处理生物大分子,名义上的生物存在;因此,可视化在研究中占有重要的地位。立体解释的使用已经持续了很长一段时间,用于想象分子结构,而在CAVE设计和头戴式显示器(HMD)以合理的价格可用之前,VR设备的构建已经完成。由于Oculus Rift和HTC Vive等新颖的头戴式设备的成功,虚拟现实最近重新获得了无数的兴趣。相反,一种重要的“计算显微镜”的新制造已经被认可,例如CAVE2,可以产生超大的,大约360度的可视化服务。此外,在早期,这些方法仅限于成本密集的精通可视化服务。新的、价格合理的、频繁的移动技术的出现,为日常研究定期使用相关方法提供了更高的可能性。多年来,可视化分析被有效地用于检查复杂和异构的数据集。现在,沉浸式分析将这些方法与新的沉浸式和交互式技术相结合
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引用次数: 3
How does hair growth change with blood group? 头发生长如何随血型变化?
Pub Date : 2019-03-28 DOI: 10.15406/oajs.2019.03.00131
A. Ishaq, M. Qadir
Blood group is actually classification of blood types that is based on presence of absence of antigens or antibodies. Humans have 4 major blood groups. For example A blood group, B blood group, AB blood group and O blood group. Parents transfer the genes to their children which decide the blood group. Each parent can donate one allele to child. Child can also have different blood group than parents in case when both parents have B blood group then they can produce the child having either B or O blood group. Other condition is when one parent has A and other has AB blood group then they can produce the child having A,B or AB blood group. Antigens ‘A’ and anti-B antibodies are present in A blood group. Antigens ‘B’ and anti-A antibodies are present in A blood group. ‘A’ and ‘B’ antigens are present in AB blood group but it has no antibodies. No antigens are present in O blood group but has both anti-A and anti-B antibodies. O is common among all blood groups. Receiving wrong blood group from donor can be life threatening.1 Blood groups are further characterized by presence or absence of RhD antigen. Red blood cells have this antigen on their surface. Blood group is positive if RBCs have this antigen and blood group is negative if RBCs do not have this antigen. In this way, total 8 blood groups are present. These are A+ blood group, Ablood group, B+ blood group, Bblood group, AB+ blood group, ABblood group, O+ blood group and Oblood group. From these, Ocan be given to anyone when required blood group is not immediately available.2 Hair can grow with different rates at different places of head. Follicles of hair do not depend on each other. They behave independently. For example in one case, when a person’s hair start to fall then he may lose all hair simultaneously. In other case the person’s hair may start to appear gray. The position of follicles actually determine their behavior. Some outer factors also affect their behavior. Average rate of growth of hair is 1.5 inches in one month. Male’s hair grow faster than female because of testosterone. Hair growth also depends on age for example in old age follicles stop growing that is why hair becomes thin. The hair growth completes in 3 cycles. When cycle is complete then it stops and a new strand of hair begins to form. This cycle completes in different time for different people that is why they have different hair growth rate. Different hair colors and follicle shapes also affect the timing of cycle thus People do not have same rates for growth of hair. Materials and methods
血型实际上是血型的分类,是基于抗原或抗体的存在或缺乏。人类有四大血型。例如A型血,B型血,AB型血和O型血。父母把基因传给孩子,决定了他们的血型。父母双方可以捐赠一个等位基因给孩子。孩子也可以和父母有不同的血型,如果父母都是B型血,那么他们可以生下B型血或O型血的孩子。另一种情况是,父母一方是A型血,另一方是AB型血,那么他们的孩子可能是A型,B型或AB型血。抗原A和抗b抗体存在于A血型中。抗原B和抗A抗体存在于A血型中。AB血型有A和B抗原,但没有抗体。O型血没有抗原,但有抗a和抗b抗体。O型血在所有血型中都很常见。从献血者那里接受错误的血型可能会危及生命血型的进一步特征是存在或不存在RhD抗原。红细胞表面有这种抗原。如果红细胞有这种抗原,血型是阳性的如果红细胞没有这种抗原,血型是阴性的。这样,总共有8种血型。它们是A+血型,B+血型,B+血型,B+血型,AB+血型,B+血型,O+血型和B+血型。当需要的血型不能立即获得时,可以从这些血型中给任何人头发在头部的不同部位以不同的速度生长。毛囊之间并不相互依赖。它们的行为是独立的。例如,在一种情况下,当一个人的头发开始脱落时,他可能同时失去所有的头发。在另一种情况下,这个人的头发可能会开始变白。卵泡的位置实际上决定了它们的行为。一些外部因素也会影响他们的行为。头发的平均生长速度是一个月1.5英寸。由于睾丸激素的作用,男性的头发比女性长得快。头发的生长也取决于年龄,例如,在老年时,毛囊停止生长,这就是为什么头发变薄。头发的生长分3个周期完成。当循环完成后,它就停止了,新的一缕头发开始形成。这个周期对不同的人来说在不同的时间完成,这就是为什么他们有不同的头发生长速度。不同的头发颜色和毛囊形状也会影响周期的时间,因此人们的头发生长速度不一样。材料与方法
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引用次数: 0
A word about somebody I met in Bulgaria (from the primacy of matter over spirituality to the primacy of spirituality over matter) 我在保加利亚遇到一个人(从物质优先于精神到精神优先于物质)
Pub Date : 2019-03-26 DOI: 10.15406/oajs.2019.03.00130
J. Oliveira
This article has been postponed by almost a decade, for reasons that are beside the point. The time has come to get on with the task at hand and some words definitely need to be said about somebody I met in Bulgaria in the autumn of 2009. I was in the second half of my forties and decided to roam across the Balkans according to no established plan; a chain of events hard to explain led me to Rila, Bulgaria’s most famous monastery, where I stayed a couple of days as a guest. After one of the ceremonies I had the opportunity to attend – during which poetry, music and visual arts praised the Creator in perfect Bizantine unity –, a man in the middle of his thirties visibly wanted to speak to me. And so he did. Olivier was his name and French his nationality, notwithstanding a Bulgarian background. His Bulgarian grandfather was still alive, and that was one of the reasons why he was there, at that time, in that ex-communist country. Devoted both to communism and to atheism (which is its corollary), Olivier’s parents did their best to keep him away from religion. During three decades or so, they were extremely successful in convincing their child that mater was the only thing that really mattered, and that the only immaterial being to be worship was the State – almighty entity revealed by Danton, Marx, Lenin, Stalin, Guevara, Pol Pot and other “prophets” of the Revolution. In their bringing about the “socialist paradise”, what they really did was to establish hell on earth, provoking the death of more than 150 million people; in the eastern side of the Iron Curtain alone, communism claimed the lives of no less than one million people – never forgetting that “Communism is fascism, without fascism’s ability to make the trains run on time”.1
由于一些无关紧要的原因,这篇文章被推迟了近十年。是时候着手手头的工作了,我必须对2009年秋天在保加利亚遇到的某个人说几句话。我四十多岁了,决定在没有既定计划的情况下漫游巴尔干半岛;一连串难以解释的事件把我带到了保加利亚最著名的修道院里拉(Rila),我在那里作为客人住了几天。在我有机会参加的一个仪式上——诗歌、音乐和视觉艺术以完美的比兹坦式的统一赞美造物主——一个三十多岁的男人显然想和我说话。他就这样做了。奥利弗是他的名字,法国人是他的国籍,尽管他有保加利亚的背景。他的保加利亚祖父还健在,这也是他当时在那个前共产主义国家的原因之一。奥利维尔的父母既信奉共产主义,也信奉无神论(这是无神论的必然结果),他们尽最大努力让他远离宗教。在三十年左右的时间里,他们极其成功地让孩子相信物质是唯一真正重要的东西,唯一值得崇拜的非物质存在是国家——丹东、马克思、列宁、斯大林、格瓦拉、波尔布特和其他革命“先知”所揭示的全能实体。他们搞“社会主义天堂”,实际上是在人间建立地狱,造成1.5亿多人死亡;仅在铁幕的东侧,共产主义就夺去了不少于100万人的生命——永远不要忘记“共产主义是法西斯主义,没有法西斯主义使火车准点运行的能力”
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引用次数: 0
Impact of water requirement on yield productivity of potato crop using lysimeters under arid climate 干旱气候条件下需水量对马铃薯作物产量的影响
Pub Date : 2019-03-15 DOI: 10.15406/oajs.2019.03.00129
Msa El Marazky, F. S. Mohammad, H. Al-Ghobari
The Kingdom of Saudi Arabia (KSA) is currently 121% selfsufficient in potatoes.1 In 2010, the country’s potato crop encompassed a land area of 6,941 ha, with production of approximately 176,077 tons.2 The successful irrigation of potato requires an understanding of both irrigation and scheduling methods, as a regular water supply is needed to secure high yields.3 Potato is often considered to be a highwater-use crop,4 with yield quantity greatly influenced by the amount of applied water.5,6 In agriculture, quantifying evapotranspiration (ET) is essential for effective irrigation management.7 In the KSA, water requirements for potato crops average around 590 mm and 710 mm in the autumn and spring seasons, respectively.8 In eastern Saudi Arabia, Al-Omran and Shelby9 estimated the total crop water requirement of potatoes to be approximately 520 mm, whereas Al-Ghobari10 calculated a water requirement of 416 mm for the winter season in Najran. In contrast, Wright and Stark reported seasonal water consumption values in irrigated areas of Oregon and Washington between 640 mm and 700 mm, demonstrating the variation that exists in water use depending on factors such as environment, season, and rate of crop growth. Lysimeter is generally consider as the criterion system for estimating crop evapotranspiration (ETc) and crop coefficients (Kc); as such, measurements of the water requirements of potato crops can be attained using lysimeters, which provide more reliable measurements of ETc that, in turn, allows for more precise estimates of irrigation water depths.11,12 ETc measurements are used for different crops grown in Saudi Arabia,13,14 and a standardized reference ET approach is commonly used to determine daily reference ET.15 The crop coefficient varies through the course of the growing season, depending on the growth stage of the crop.16
沙特阿拉伯王国(KSA)目前的土豆自给自足率为121%2010年,该国马铃薯种植面积为6941公顷,产量约为176077吨马铃薯的成功灌溉需要了解灌溉和调度方法,因为需要定期供水以确保高产马铃薯通常被认为是高耗水量作物,其产量受施水量的影响很大。在农业中,量化蒸散量(ET)对有效的灌溉管理至关重要在KSA,马铃薯作物在秋季和春季的需水量平均分别在590毫米和710毫米左右在沙特阿拉伯东部,Al-Omran和Shelby9估计土豆的作物总需水量约为520毫米,而Al-Ghobari10计算出Najran冬季的需水量为416毫米。相比之下,Wright和Stark报告说,俄勒冈州和华盛顿州灌溉区的季节性用水量在640毫米到700毫米之间,这表明,根据环境、季节和作物生长速度等因素,用水量存在变化。蒸散计通常被认为是估算作物蒸散量(ETc)和作物系数(Kc)的判据系统;因此,马铃薯作物需水量的测量可以使用溶渗仪,它提供了更可靠的ETc测量,从而可以更精确地估计灌溉水深。ETc测量用于沙特阿拉伯种植的不同作物,13,14和标准化参考ET方法通常用于确定每日参考ET。作物系数随生长季节的变化而变化,取决于作物的生长阶段
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引用次数: 3
Motivational factors for attracting and retaining youths in agriculture through new ventures of agro-skills 通过新的农业技能项目吸引和留住农业青年的激励因素
Pub Date : 2019-02-25 DOI: 10.15406/oajs.2019.03.00127
Rajput Rl
youths prefer to do minimum wage jobs rather than doing agriculture. If this situation persists in the future, it will be a herculean task to maintain country’s food security. “Agriculture is the backbone of our country”, more than 50% of labour force are engaged in agriculture and in order to retain the backbone straight, timely, convenient measures need to implement to foster towards food security.1 Land under agriculture is declining due to several socioeconomic and natural causes. In this context the R & D of our country have to give timely emphasis for raising agriculture productivity through hi-tech and modern technologies. And who else better than youths can adopt and apply hi-tech and modern technologies? India blessed to have so many capable youngsters in a place which is full of opportunities. This is our greatest asset. Young mind are creative and youth is capable of achieving seemingly impossible task. United Nation defined youth age group as 15-25, but in India, youth is in the age group of 13-35 years2 which constitute 46% of the total population of the country. Knowing the vitality of rural youth in a youthful country, especially for the purpose of agricultural development from the point of view of Indias food security, the apex body ICAR begins on a program on “Attracting and Retaining Youth in Agriculture” (ARYA). The objectives of ARYA are (i) To captivate and accredit the Youth in Rural Areas to take up different Agriculture, allied and service sector enterprises for sustainable income and gainful employment in selected districts, (ii) to set up a conglomeration by creating groups for secondary agriculture such as value addition, processing and trading (iii) to show various linkages with various sectors and stakeholders available under various schemes/program for sustainable development of youth. ARYA project will focus into the area of apiary, mushroom, seed Processing, soil testing, poultry, dairy, goatry, carp-hatchery, vermin-compost etc. Rural youths will be identified for their skill development in entrepreneurial activities. The purpose is to establish economic models for youth in the villages so that youth get attracted in agriculture and overall rural situation is improved. Skill development of rural youths will help in additional employment opportunities in rural areas.
年轻人宁愿从事最低工资的工作,也不愿从事农业。如果这种情况持续下去,维护国家粮食安全将是一项艰巨的任务。“农业是我国的脊梁”,超过50%的劳动力从事农业,为了留住脊梁,需要实施及时、便捷的措施来促进粮食安全由于若干社会经济和自然原因,农业用地正在减少。在此背景下,我国的研究与发展必须及时重视利用高新技术和现代技术提高农业生产力。还有谁比年轻人更能接受和应用高科技和现代科技呢?印度幸运地拥有这么多有能力的年轻人,这个地方充满了机会。这是我们最大的财富。年轻的头脑富有创造力,青年有能力完成看似不可能完成的任务。联合国将青年年龄组定义为15-25岁,但在印度,青年年龄在13-35岁2,占该国总人口的46%。了解年轻国家农村青年的活力,特别是从印度粮食安全的角度考虑农业发展的目的,最高机构ICAR开始了“吸引和留住农业青年”(ARYA)计划。ARYA的目标是(i)吸引和认可农村地区的青年从事不同的农业,相关和服务行业企业,在选定的地区获得可持续收入和有报酬的就业;(ii)通过创建增值,加工和贸易等第二农业团体来建立一个联合体;(iii)展示在各种计划/计划下与各个部门和利益相关者的各种联系,以促进青年的可持续发展。ARYA项目将集中在养蜂、蘑菇、种子加工、土壤测试、家禽、乳制品、山羊、鲤鱼孵化场、害虫堆肥等领域。将查明农村青年在创业活动中的技能发展。目的是为农村青年建立经济模式,吸引青年从事农业,改善农村整体状况。农村青年的技能发展将有助于增加农村地区的就业机会。
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引用次数: 0
Solving numerically a seventh order boundary value problem by splitting coupled finite difference method 用分裂耦合有限差分法数值求解七阶边值问题
Pub Date : 2019-02-22 DOI: 10.15406/oajs.2019.03.00126
P. Pandey
In this present article we concerned with numerical solution of seventh order boundary value problem. We have proposed a novel finite difference method and derived proposed finite difference method by splitting coupled equations method. Under appropriate conditions, we have established the convergence of the proposed method. Also we have obtained a numerical value of derivative of solution of the problem which is practically useful in some modeling problem. We have applied proposed method for the numerical solution of model problems. Numerical results are in good agreement to the proposed theoretical results.
本文研究了七阶边值问题的数值解。提出了一种新的有限差分方法,并利用耦合方程分裂法推导出了该方法。在适当的条件下,我们证明了所提方法的收敛性。同时,我们还得到了该问题的解的导数的一个数值,这对某些建模问题具有实际意义。我们将该方法应用于模型问题的数值求解。数值结果与理论结果吻合较好。
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引用次数: 0
Dimethyl ether market to hit $14.4bn by 2025 到2025年,二甲醚市场将达到144亿美元
Pub Date : 2019-02-22 DOI: 10.15406/oajs.2019.03.00125
Shankar Khatkale
by reducing pollutants. With rising concerns to attain environmental sustainability, several players in the dimethyl ether market have launched DME fuel compatible vehicles to promote sustainable road transport development. For instance, Volvo Truck Corporation has launched Volvo Bio-DME trucks which are compatible to run on renewable fuels and provides comparable performance along with lower CO2 emissions. Dimethyl ether also finds widespread applications as an aerosol propellant across several end-user industries including pharmaceuticals, cosmetics, paints & coatings, etc. It is extensively Used across various industries owing to low cost, low odor, high stability & purity, low toxicity, wide vapor pressure range, and environment-friendliness and flammability. In the cosmetic industry, it is used in hair spray, fragrances and various other products. The benefits of dimethyl ether as an aerosol propellant such as purity & stability, low relative cost, low odor, wide vapor pressures range, low toxicity, flammability and environmentally friendly nature of the product has been playing a vital role in capturing an extended customer base primarily in North America.
通过减少污染物。随着人们对实现环境可持续性的日益关注,二甲醚市场的一些参与者已经推出了二甲醚燃料兼容车辆,以促进可持续道路运输的发展。例如,沃尔沃卡车公司推出了沃尔沃Bio-DME卡车,这种卡车可以兼容可再生燃料,并提供类似的性能,同时二氧化碳排放量更低。二甲醚作为气溶胶推进剂也广泛应用于几个终端用户行业,包括制药、化妆品、油漆和涂料等。它具有成本低、气味低、稳定性高、纯度高、毒性低、蒸汽压范围宽、环境友好、易燃性好等优点,广泛应用于各行业。在化妆品行业,它被用于发胶、香水和各种其他产品。二甲醚作为气溶胶推进剂的优点,如纯度和稳定性,相对成本低,气味低,蒸气压范围宽,毒性低,易燃性和环境友好性,在捕获主要在北美扩展的客户群方面发挥了至关重要的作用。
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引用次数: 0
Association between blood grouping and food sweating 血型与食物出汗之间的关系
Pub Date : 2019-02-21 DOI: 10.15406/oajs.2019.03.00124
M. A. Abbas, M. Qadir
ABO blood group system was discovered by Karl Landsteiner. ABO system has four different phenotypes which are described on the basis of specific antigen on RBC. A person with an antigen A has A blood group. Person with an antigen B has B blood group. Person having both the antigen A and B has AB blood group. A person having no antigen neither A nor B would have blood group O. The blood group is encoded by a single gene I on 9th chromosome. This chromosome has 3 alleles. IA; that produces antigen A. IB that produces antigen B and allele I produces no antigen. Allele IA and IB are codominant to each other and together they produce AB phenotype. But I is recessive to both IA and IB. Homozygous ii produce phenotype O. Blood group A can be donated only to A and AB recipient because they do not have anti-A antibodies. Blood group B can be given to B and AB recipient because they do not have antiB antibodies. Blood group AB can be donated to AB recipient because they have neither anti-A nor anti B antibodies. Blood group O has neither antigen A nor B but have anti A and anti B antibodies. O recipient can only be given blood transfusion from a donor O. Phenotype O can be used to give small amount to A, B and AB recipients. Person with blood group O can donate blood to all other blood group types. And AB blood group Individuals is universal recipients. ABO blood group is further differentiated by a + or – sign. The + or – sign refers to the presence or the absence of another blood group system antigen called RH factor. RH system defined on the basis of Rh factor present on RBC. The system is named RH from rhesus monkey. Rh blood group is encoded by three genes C, D, E. which are present on the two loci. D on a single locus and C and E on another locus. D is very important. D has two allele D and d. D is dominant over d. persons with genotype DD or Dd have RH factor on the RBC and are RH+. Food sweating or gustatory sweating also called Frey’s syndrome. It occurs when you eat spicy food. The body temperature rises so the body tries to cool itself by producing sweat. Gustatory sweating may occur due to trauma to the parotid gland. If the parotid gland is damaged the nerve becomes mix up and the person starts sweating. The damage to the parotid gland is called Frey’s syndrome. Sometime the cause of sweating may not be known (idiopathic). People may sweat while they eat, think about the food and discussing about the food. The cause of gustatory sweating may be due to some diseases such as diabetes, shingles or damage to the face tumor or the injury to the face. Thanks to the science the treatment of the gustatory sweating is available. The Botox injection gives a few years relief from gustatory sweating. Gustatory sweating may be dur to some illness. Treatment of the illness can solve the problem. If not treated then it can be addressed with the application of the antiperspirants. Make sure that the antiperspirants you use may not be irritating for you. Only
ABO血型系统是由卡尔·兰德斯泰纳发现的。ABO系统有四种不同的表型,这些表型是根据红细胞上的特异性抗原来描述的。有抗原A的人有一个血型。有B抗原的人有B血型。同时具有抗原A和B的人是AB血型。一个既没有A抗原也没有B抗原的人就会有o型血。o型血是由第9号染色体上的一个基因I编码的。这条染色体有三个等位基因。IA;产生抗原a的IB产生抗原B等位基因I不产生抗原。等位基因IA和IB相互共显性,共同产生AB型表型。但I型对IA和IB都是隐性的。纯合子ii型产生o型表型。A型血只能捐献给A型和AB型受体,因为他们没有抗A抗体。B型血可以给B型和AB型受体,因为他们没有抗B抗体。AB型血的人既没有抗a抗体,也没有抗B抗体,因此可以捐献给AB型受体。O型血既没有抗原A也没有抗原B,但有抗A和抗B抗体。O型受体只能接受O型供体的输血。O型表型可用于少量输血给a、B和AB型受体。O型血的人可以献血给所有其他血型的人。AB血型的个体是通用受体。ABO血型可通过+或-号进一步区分。+或-符号是指存在或不存在另一种称为RH因子的血型系统抗原。根据RBC上存在的RH因子来定义RH系统。这个系统被命名为RH,来自恒河猴。Rh血型由存在于两个基因座上的三个基因C、D、e编码。D在一个位点上C和E在另一个位点上。D非常重要。D有两个等位基因D和D。基因型DD或DD的人在红细胞上有RH因子,是RH+。食物出汗或味觉出汗也叫弗雷氏综合症。当你吃辣的食物时就会出现这种情况。体温升高,所以身体试图通过分泌汗液来降温。味觉性出汗可能是由于腮腺外伤引起的。如果腮腺受损,神经就会混乱,人就会开始出汗。这种对腮腺的损害被称为弗雷氏综合症。有时出汗的原因可能不知道(特发性)。人们可能会在吃的时候出汗,想着食物,讨论食物。味觉出汗的原因可能是由于某些疾病,如糖尿病、带状疱疹或面部肿瘤受损或面部受伤。由于科学的发展,味觉出汗的治疗是可行的。注射肉毒杆菌素可以缓解几年的味觉出汗。味觉出汗可能是某些疾病的前兆。治疗疾病可以解决问题。如果不治疗,那么它可以解决与应用止汗剂。确保你使用的止汗剂不会刺激你。止汗剂只适用于面部或小面积的皮肤。目前的目的是将血型与食物出汗联系起来。
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