Mechanical Analysis and Experimental Research of Working in the Earth Helical Blade

2015 ◽  
Vol 741 ◽  
pp. 143-146
Author(s):  
Bing Bing Yan ◽  
Wen Bo Ren ◽  
Bao Lin Yin ◽  
Lian Jun Zhang ◽  
Jun Fa Wang
Keyword(s):  
Theoretical Foundation ◽  
Subsequent Development ◽  
Mechanical Analysis ◽  
Mechanics Model ◽  
The Earth ◽  
Blade Width ◽  
Helical Blade ◽  
Series Of Experiments ◽  
Driving Torque ◽  
The Relationship

Based on the Rankine earth mechanics theory, the mechanics model that the helical blade working in earth is simplified in this paper, and an experimental platform for discovery the relationship that between helical blade structure parameters and the driving torque is designed when the helical blade working in the earth. Through a series of experiments, comparative analysis the effect of the helical blade width, pitch on the driving torque, the experimental results verified the feasibility of the helical blade operation way of working in the earth, which laid the theoretical foundation for the subsequent development of the spiral in the earth device.

ECOLOGICAL INTERPRETATIONS OF THE JONAH NARRATIVE – HAVE THEY SUCCEEDED IN OVERCOMING ANTHROPOCENTRISM?

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
Willie Van Heerden
Keyword(s):  
Biblical Text ◽  
Biblical Hermeneutics ◽  
Central Concern ◽  
The Earth ◽  
Biblical Texts ◽  
The Relationship

A central concern of ecological biblical hermeneutics is to overcome the anthropocentric bias we are likely to find both in interpretations of the biblical texts and in the biblical text itself. One of the consequences of anthropocentrism has been described as a sense of distance, separation, and otherness in the relationship between humans and other members of the Earth community. This article is an attempt to determine whether extant ecological interpretations of the Jonah narrative have successfully addressed this sense of estrangement. The article focuses on the work of Ernst M. Conradie (2005), Raymond F. Person (2008), Yael Shemesh (2010), Brent A. Strawn (2012), and Phyllis Trible (1994, 1996).

African and African American Religions in the Early Americas

2018 ◽  
Author(s):  
Jason Young
Keyword(s):  
African American ◽  
Belief Systems ◽  
Subsequent Development ◽  
Religious Practices ◽  
African American Religion ◽  
African Religion ◽  
1960S And 1970S ◽  
The 1960S ◽  
New Generation ◽  
The Relationship

This chapter chronicles the relationship between African religious practices on the continent and African American religion in the plantation Americas in the era of slavery and the transatlantic slave trade. A new generation of scholars who emerged in the 1960s and 1970s have demonstrated not only that African religious practices exhibit remarkable subtlety and complexity but also that these cultures have played significant roles in the subsequent development of religious practices throughout the world. Christianity, Islam, and traditional African religion comprised a set of broad and varied religious practices that contributed to the development of creative, subtle, and complex belief systems that circulated around the African Diaspora. In addition, this chapter addresses some of the vexed epistemological challenges related to discussing and describing non-Western ritual and religious practices.

scholarly journals Geocomputing, New Technologies and Historical Analysis: Tools for a Changing Planet

Proceedings ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 9
Author(s):  
Sebastiano Trevisani
Keyword(s):  
Quantitative Analysis ◽  
Philosophy Of Science ◽  
New Technologies ◽  
Historical Analysis ◽  
Holistic Approach ◽  
Research Topic ◽  
The Other ◽  
Historical Records ◽  
The Earth ◽  
The Relationship

Modern Earth Scientists need also to interact with other disciplines, apparently far from the Earth Sciences and Engineering. Disciplines related to history and philosophy of science are emblematic from this perspective. From one side, the quantitative analysis of information extracted from historical records (documents, maps, paintings, etc.) represents an exciting research topic, requiring a truly holistic approach. On the other side, epistemological and philosophy of science considerations on the relationship between geoscience and society in history are of fundamental importance for understanding past, present and future geosphere-anthroposphere interlinked dynamics.

scholarly journals The Role of Gut, Vaginal, and Urinary Microbiome in Urinary Tract Infections: From Bench to Bedside

Diagnostics ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 7
Author(s):  
Tomislav Meštrović ◽  
Mario Matijašić ◽  
Mihaela Perić ◽  
Hana Čipčić Paljetak ◽  
Anja Barešić ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Subsequent Development ◽  
Potential Influence ◽  
Urinary Microbiome ◽  
Important Field ◽  
Tract Infections ◽  
The Relationship ◽  
Current Paradigm

The current paradigm of urinary tract infection (UTI) pathogenesis takes into account the contamination of the periurethral space by specific uropathogens residing in the gut, which is followed by urethral colonization and pathogen ascension to the urinary bladder. Consequently, studying the relationship between gut microbiota and the subsequent development of bacteriuria and UTI represents an important field of research. However, the well-established diagnostic and therapeutic paradigm for urinary tract infections (UTIs) has come into question with the discovery of a multifaceted, symbiotic microbiome in the healthy urogenital tract. More specifically, emerging data suggest that vaginal dysbiosis may result in Escherichia coli colonization and prompt recurrent UTIs, while urinary microbiome perturbations may precede the development of UTIs and other pathologic conditions of the urinary system. The question is whether these findings can be exploited for risk reduction and treatment purposes. This review aimed to appraise the three aforementioned specific microbiomes regarding their potential influence on UTI development by focusing on the recent studies in the field and assessing the potential linkages between these different niches, as well as evaluating the state of translational research for novel therapeutic and preventative approaches.

Factors Associated with Maternal Opinion of Infant Development—Clues to the Vulnerable Child?

PEDIATRICS ◽  
1982 ◽  
Vol 69 (5) ◽  
pp. 537-543
Author(s):  
Marie C. McCormick ◽  
Sam Shapiro ◽  
Barbara Starfield
Keyword(s):  
Birth Weight ◽  
Infant Development ◽  
Infant Health ◽  
Subsequent Development ◽  
First Year ◽  
Factors Associated ◽  
Slow Development ◽  
First Year Of Life ◽  
Relationship Of ◽  
The Relationship

A mother's expectations about the development of her infant have been found to be a strong determinant of child development, but little is known about the factors that may affect maternal assessment of development. In this study, the relationship of the mother's opinion of the development of her infant with several sociodemographic, antenatal, intrapartum, and infant health variables was examined for a large sample of 1-year-old infants for whom gross motor observations were also obtained at the time of the interview. Among those observed to be developing at an appropriate rate, 4.0% were perceived by their mothers as developing more slowly than the mothers considered normal; among infants developing more slowly, 28.6% were considered to be developing slowly by their mothers. In both groups, the major determinants of maternal opinion of slow development concerned the infant's health: low birth weight, congenital anomalies regardless of severity, hospitalization during the first year of life, and high ambulatory care use. These results indicate that maternal perception of infant development may not reflect the infant's level, but past or present illness, and raise questions about the influence of infant health on maternal-infant interactions and the effect of such interactions on subsequent development in the child.

The interaction between Tu-Izumo1 and Tu-JUNO is involved in turtles hybridization

Reproduction ◽  
2021 ◽  
Author(s):  
Jinxiu Dong ◽  
Siqi Liu ◽  
Ziming Wang ◽  
Kai Zheng ◽  
Mengli Yang ◽  
...  
Keyword(s):  
Molecular Basis ◽  
Theoretical Foundation ◽  
Subsequent Development ◽  
Interaction Force ◽  
Egg Recognition ◽  
Turtle Species ◽  
Breeding Management ◽  
Evolutionarily Conserved ◽  
Interaction Screening ◽  
Species Hybridization

The specificity of sperm-egg recognition is crucial to species independence, and two proteins (Izumo1 and JUNO) are essential for gamete adhesion/fusion in mammals. However, hybridization, which is very common in turtles, also requires specific recognition of sperm-egg binding proteins. In this study, we discovered that natural selection plays an important role in the codon usage bias of Tu-Izumo1 and Tu-JUNO. Positively selected sites and co-evolutionary analyses between Tu-Izumo1 and Tu-JUNO has been previously reported, and we confirm these results in a larger analysis containing 25 turtle species. We also showed that Tu-JUNO is expressed on the oocyte surface and that Tu-Izumo1 and Tu-JUNO interact with each other directly in different species hybridization combinations. Co-immunization assays revealed that this interaction is evolutionarily conserved in turtles. The results of avidity-based extracellular interaction screening between Tu-Izumo1 and Tu-JUNO for sperm-oocyte binding pairs (both within and across species) likely suggest that the interaction force between Izumo1 and JUNO has a certain correlation in whether the turtles can hybridize. Our results lay a theoretical foundation for the subsequent development of techniques to detect whether different turtle species can interbreed, which would provide the molecular basis for breeding management and species protection of turtles.

Experimental Investigation on Rotary Punching by the Compression of Polyurethane Pad

2014 ◽  
Vol 941-944 ◽  
pp. 1802-1807 ◽  
Author(s):  
Qian Liu ◽  
Jing Tao Han ◽  
Jing Liu ◽  
Xiao Xiong Wang
Keyword(s):  
Penetration Depth ◽  
Process Parameters ◽  
High Load ◽  
Large Area ◽  
Bear Capacity ◽  
Hole Edge ◽  
Quality Degradation ◽  
Series Of Experiments ◽  
Blanking Process ◽  
The Relationship

Rotary punching is a sheet metal blanking process which utilizes shearing tools fixed to a pair of rollers. The polyurethane pad is adopted as the die instead of rigid mold because it has the advantages of wide hardness range and high load-bear capacity. Due to the application of polyurethane pad, the surrounding region adjacent to the pierced hole will occur to plastically deform and deflect, which greatly differs from that in the conventional blanking. In this paper, the effects of blank material and thickness, polyurethane hardness, punch penetration depth on deformation behavior were mathematically analyzed and modeled, and then a series of experiments through varying process parameters were conducted to validate the relationship between process parameters and product quality. The degree of sample deflection was exactly measured by scanning electron microscope (SEM). The results show that the deformed area varies with different blank elongations and increases with increasing blank thickness for a given material. When polyurethane pad with low hardness level is employed, it results in large area deformation and quality degradation. Moreover, the deflection degree around the hole edge becomes more severe along with punch penetration, but the penetration depth along blank thickness is not in proportion to the amount of punch advancement.

Community Interest Congruence

2018 ◽  
Vol 26 (4) ◽  
pp. 384-395
Author(s):  
Samuel B. Rennebohm ◽  
Melissa Caris ◽  
Jyssica Seebeck ◽  
John W. Thoburn
Keyword(s):  
Romantic Relationships ◽  
Social Factors ◽  
Theoretical Foundation ◽  
Individual Therapy ◽  
Substantial Evidence ◽  
Community Values ◽  
Community Interest ◽  
Emotionally Focused ◽  
Interest Congruence ◽  
The Relationship

Attachment has been shown to play a significant role in adult romantic relationships, and there is substantial evidence supporting the use of attachment-based interventions with couples. Prevailing conceptualizations of dyadic functioning often incorporate biological and psychological factors, such as attachment, but often limit their scope of social factors to the dyad itself. Such conceptualizations do not attend to the relationship between couples and their wider community. Awareness of social and community values is much more common in individual therapy but has not been integrated into couple’s work. In this article, we propose a biopsychosocial foundation for viewing the relationship between couples and their wider community through the lens of attachment, in which securely attached couples are more likely to have community interest congruence and insecurely attached couples are more likely to experience incongruence. Translating this theoretical foundation into practice, we also propose a stepwise approach for integrating community interest work into the established framework of emotionally focused therapy with couples.

scholarly journals Religion, Polity, and the Natural Environment in the Anthropocene Age

2020 ◽  
Author(s):  
Peyman Hekmatpour
Keyword(s):  
Natural Environment ◽  
Political Ideology ◽  
Human Impacts ◽  
Environmental Problems ◽  
Environmental Conservation ◽  
Political Organizations ◽  
Central Concept ◽  
The Earth ◽  
The Relationship ◽  
Level Of Analysis

The Anthropocene age is marked by increased human impacts on the natural environment. As social beings, humans interact with each other, and with their surrounding environments, often through organizations and institutions. Religion and the polity are among the most influential human institutions, and they tend to impact the natural environment in several ways. For instance, several thinkers have claimed that some of the central ideas of the Abrahamic traditions, such as the concept of “Domination of men over the earth,” are among the causes of several anthropogenic environmental problems. By contrast, some of the ideas of non-Abrahamic, particularly animistic, religions are found to be associated with environmental conservation and stewardship. The polity can also contribute to environmental problems. The relationship between political organizations and environmental degradation, at any level of analysis from local to global, is well studied and established in the literature. Politicizing the natural environment, however, is not without tradeoffs. Environmentalism, by certain groups of people, is considered as a “stigma,” while it is a central concept in the political ideology of another part of the population. This antagonism is harmful to the environmental protection cause. I make the case that religion, or at least a number of religious ideas, can be conducive to the process of depoliticizing the natural environment. In this paper, I strive to draw a theoretical framework to explain how religion and the polity can mutually impact the natural environment.

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