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Meaning of Gravitation

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Journal of Modern Physics 2019年第2期10卷 157-162页

作者： Walter petry Mathematical Institute of the University Duesseldorf Duesseldorf Germany

It is well-known that two bodies attract one another by gravitation. The theory of Newton gives a formula for this attraction depending on the masses of the bodies. General relativity of Einstein explains gravitation as geometry. There exists no satisfactory explanation for the meaning of gravitation. A theory of gravitation in flat space-time gives non-singular, cosmological models. In the beginning of the universe, there is no matter and all the energy is uniformly distributed gravitational energy. This energy is attractive and converts to dark matter generating our universe. Gravitational energy is the reason for attraction and not the mass of the bodies. It is well known that each body is surrounded by a gravitational field. This field gives the attraction of bodies.

关键词： Gravitation in Flat Space-Time Gravitational Energy Universe Dark Matter No Singularity No Big Bang

Gravitation in Flat Space-Time and General Relativity

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Journal of Applied Mathematics and Physics 2014年第5期2卷 50-54页

作者： Walter petry Mathematical Institute of the University Duesseldorf Duesseldorf Germany

A covariant theory of gravitation in flat space-time is stated and compared with general relativity. The results of the theory of gravitation in flat space-time and of general relativity agree for weak gravitational fields to low approximations. For strong fields the results of the two theories deviate from one another. Flat space-time theory of gravitation gives under some natural assumptions non-singular cosmological models with a flat space. The universe contracts to a positive minimum and then it expands for all times. Shortly, after the minimum is reached, the cosmological models of two theories approximately agree with one another if models in general relativity with zero curvature are considered. A flat space is proved by experiments.

关键词： Gravitation Flat Space-Time Cosmology Big Bounce No Big Bang Flat Space

Interleukin-1:an important target for perinatal neuroprotection?

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中国神经再生研究：英文版 2023年第1期18卷 47-50页

作者： Sharmony B.Kelly Elys Green Rod W.Hunt Claudia A.Nold-petry Alistair J.Gunn Marcel F.Nold Robert Galinsky The Ritchie Centre Hudson Institute of Medical ResearchMelbourneVictoriaAustralia Department of Obstetrics and Gynaecology Monash UniversityVictoriaAustralia Department of Pediatrics Monash UniversityVictoriaAustralia Monash Newborn Monash Children’s HospitalMelbourneAustralia Department of Physiology The University of AucklandAucklandNew Zealand

Perinatal inflammation is a significant risk factor for lifelong neurodevelopmental impairments such as cerebral *** clinical and preclinical evidence links the severity and pattern of perinatal inflammation to impaired maturation of white and grey matters and reduced brain *** pathways are involved in the pathogenesis of perinatal ***,studies of human and experimental perinatal encephalopathy have demonstrated a strong causative link between perinatal encephalopathy and excessive production of the pro-inflammatory effector cytokine *** this review,we summarize clinical and preclinical evidence that underpins interleukin-1 as a critical factor in initiating and perpatuating systemic and central nervous system inflammation and subsequent perinatal brain *** also highlight the important role of endogenous interleukin-1 receptor antagonist in mitigating interleukin-1-driven neuroinflammation and tissue damage,and summarize outcomes from clinical and mechanistic animal studies that establish the commercially available interleukin-1 receptor antagonist,anakinra,as a safe and effective therapeutic *** reflect on the evidence supporting clinical translation of interleukin-1 receptor antagonist for infants at the greatest risk of perinatal inflammation and impaired neurodevelopment,and suggest a path to advance interleukin-1 receptor antagonist along the translational path for perinatal neuroprotection.

关键词： brain inflammation interleukin-1 receptor antagonist interleukin-1 interleukin-1β neonatal encephalopathy neuroprotection preterm brain injury

Comparison of the Palatability of a New Flavoured Drontal^(■) Plus Tablet(Drontal^(■) Plus Treat 10 kg)and Milbemax^(■) Chewable Tablets When Presented to Privately Owned Dogs

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Open Journal of Veterinary Medicine 2014年第8期4卷 163-169页

作者： Gabriele petry Josephus Fourie Sonja Wolken Bayer Animal Health GmbH LeverkusenGermany ClinVet International(Pty)Ltd. BloemfontainRepublic of South Africa Wolkenkonzept BurgdorfGermany

There is an increased need for highly palatable oral dosage forms for dogs and cats, especially in the case of regular or chronic medications. To meet this need of easy application, the original Drontal®Plus tablet, a broad-spectrum anthelminthic, was optimized using a novel formula. A field study was conducted to evaluate the palatability of this new Drontal®Plus formula in comparison to a positive control product (Milbemax®Chewable Tablets) with a well-known high palatability. The study also aimed to get a palatability claim which necessitates the conduct of appropriate studies. 150 privately owned dogs of 38 pure or mixed breeds, six months to twelve years old, and with a weight range of 5 to 50 kg were included. The study was based on a cross-over design, and a standardized acceptance test was used to evaluate and compare the palatability of the two medications. In this study 88% of dogs voluntarily consumed Drontal®Plus Treat 10 kg, and 86.7% accepted Milbemax®Chewable Tablets. In the majority of cases (IVP: 98%, CP: 95%) the tablets were taken directly from the owner’s hand. The new Drontal®Plus tablet showed a high palatability compared to the Milbemax®Chewable Tablets when used in a household study design with privately owned dogs.

关键词： Palatability Drontal^(■) Plus Treat 10 kg Milbemax^(■) Chewable Tablets Acceptance Test

Intelligent　Information　Management　and　Knowledge　Discovery　in　Large　Numeric　and　Scientific　Databases

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Journal of Systems Engineering and Electronics 1996年第2期7卷 73-86页

作者： Patrick Perrin Frederick E. petry & William Thomason(Center for Intelligent and Knowledge-Based Systems)(Computer Science Department, Tulane University, New Orleans LA) Center for Intelligent and Knowledge-Based Systems Computer Science Department Tulane University New Orleans LA

The present article outlines progress made in designing an intelligent information system for automatic management and knowledge discovery in large numeric and scientific databases, with a validating application to the CAST-NEONS environmental databases used for ocean modeling and prediction. We describe a discovery-learning process (Automatic Data Analysis System) which combines the features of two machine learning techniques to generate sets of production rules that efficiently describe the observational raw data contained in the database. Data clustering allows the system to classify the raw data into meaningful conceptual clusters, which the system learns by induction to build decision trees, from which are automatically deduced the production rules.

关键词： Knowledge discovery in databases Machine learning Decision tree inducers

Using a Health Level 7 Interoperability Bus to Support Legacy Systems in the Health Domain

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E-Health Telecommunication Systems and Networks 2013年第4期2卷 72-80页

作者： Rafael Andrade Aldo von Wangenheim Alexandre Savaris Karine petry INCoD Brazilian Digital Convergence Institute Federal University of Santa Catarina—UFSC Florianopolis Brazil INCoD Brazilian Digital Convergence Institute Federal University of Santa Catarina—UFSC Florianopolis Brazil Federal Institute of Santa Catarina—IFSC Florianopolis Brazil

In order to reduce the effort in the integration and actualization of heterogeneous healthcare legacy systems that should share a common database, we propose the creation of an interoperability bus using the HL7 standard—the HL7Middleware. This interoperability bus is an intermediate layer responsible for the communication between a database, health information systems and medical equipment, called HL7Server. Connected systems use the HL7 messaging semantics to store and retrieve data from the database. We validate our approach with respect to two different criteria: performance and integration costs. Benchmark tests were executed with and without the use of HL7Middleware and with different network bandwidths. These results demonstrated that the performance of the interoperability bus is higher when compared to traditional database access for larger volumes of data and when the bandwidth of the user is considerably lower than the bandwidth of the connection between HL7Server and database. The overall development and deployment cost was considered low and the reusability degree of wrapper code was considered high, thus suggesting a progressive reduction of the integration costs of additional services and subsystems of an organization.

关键词： Middleware Healthcare Interoperability Bus Legacy System HL7 Telemedicine

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Boobam Store

现代装饰 2023年第1期 40-45页

作者： Felipe Hess Lucas Miliher Pedro petry Andre Klotz(摄影) 舒禹(编译) 不详

项目的建筑原身是一个旧仓库,设计师在设计的过程中,保留了建筑原有的语言和结构,再融入新的设计。在大门的入口处,logo标记通往商店内部的道路,引领着来访者进入空间,进入大楼内部,最明显感受到的是新与旧形成鲜明的对比,设计师选择白... 详细信息

项目的建筑原身是一个旧仓库,设计师在设计的过程中,保留了建筑原有的语言和结构,再融入新的设计。在大门的入口处,logo标记通往商店内部的道路,引领着来访者进入空间,进入大楼内部,最明显感受到的是新与旧形成鲜明的对比,设计师选择白色作为空间的主色调,认为其更合适作为背景,来突出样式不同的陈列产品的个性,而不喧宾夺主。设计师通过这种方式,促进空间、产品、客户新体验和设计之间的关系。空间内部宽阔,并可以根据不同的使用需求进行灵活多变的转化,整体充满流动性,很好地向来访者展示着精心设计的产品。

关键词：主色调新与旧新体验来访者灵活多变流动性喧宾夺主

Pampa Biome Native Plant Appreciation by the Analysis of <i>Glandularia peruviana</i>(L.) Cuttings Growth

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American Journal of Plant Sciences 2015年第3期6卷 427-432页

作者： Luciana Dall’Agnese Cláudia petry Paloma Alves da Silva Sexto Graduate Program in Agronomy School of Agronomy and Veterinary Medicine University of Passo Fundo Passo Fundo Brazil

A native plant of Biome Pampa (Southern Brazil), the Glandularia peruviana (L.) Small species has been, until now, little studied as ornamental plant for use as mulch and formation of massifs. Whilst this species didn’t suffer any genetic improvement process, it is extremely ornamental by its color and size. In order to promote its comercial propagation and its use to improve the Pampa biodiversity, this study was conducted to know, as a ruderal plant native from South America, how the behavior of the plants was when employed plant propagation and use of artificial auxin on the cuttings. The test consisted of assessing the growth of cuttings treated or not with indol-butyric acid, analyzed at diferent ages, at 21, 24, 27 and 31 days in the University of Passo Fundo, Passo Fundo, Brazil. It was observed that the plant total dry mass values showed no standard of behavior, values for dry matter, whether of leaves, stem, root, shoot and total not responded to treatments and analyzed ages. The same occurred for specific leaf weight, plant height, number of green leaves, number of dead leaves, average leaf length and average number of stems. The lack of significant treatment and age effects may be explained by the plant primitiveness, which is ruderal, so its development has little influenced by the propagation practices.

关键词： Glandularia peruviana Indol-Butyric Acid Native Plant Age Propagation Ruderal

用远场技术直接测量通信卫星有效载荷的EIRP和G／T

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空间电子技术 1989年第2期 35-44页

作者： petry,HP 李力田