Elimination of gases and contamination from water

Filtration system with membrane type hydrophilic and hydrophobic filters gives absolute filtration with automatic venting of freed gases, and prevents backward transmission of contamination with no bacterial growth through the filters. Filter aids in degassing industrial solutions and in removing oxygen from sea water

Relational Identities and Other-Than-Human Agency in Archaeology

Relational Identities and Other-than-Human Agency in Archaeology explores the benefits and consequences of archaeological theorizing on and interpretation of the social agency of nonhumans as relational beings capable of producing change in the world. The volume cross-examines traditional understanding of agency and personhood, presenting a globally diverse set of case studies that cover a range of cultural, geographical, and historical contexts. Agency (the ability to act) and personhood (the reciprocal qualities of relational beings) have traditionally been strictly assigned to humans. In case studies from Ghana to Australia to the British Isles and Mesoamerica, contributors to this volume demonstrate that objects, animals, locations, and other nonhuman actors also potentially share this ontological status and are capable of instigating events and enacting change. This kind of other-than-human agency is not a one-way transaction of cause to effect but requires an appropriate form of reciprocal engagement indicative of relational personhood, which in these cases, left material traces detectable in the archaeological record. Modern dualist ontologies separating objects from subjects and the animate from the inanimate obscure our understanding of the roles that other-than-human agents played in past societies. Relational Identities and Other-than-Human Agency in Archaeology challenges this essentialist binary perspective. Contributors in this volume show that intersubjective (inherently social) ways of being are a fundamental and indispensable condition of all personhood and move the debate in posthumanist scholarship beyond the polarizing dichotomies of relational versus bounded types of persons. In this way, the book makes a significant contribution to theory and interpretation of personhood and other-than-human agency in archaeology.https://cupola.gettysburg.edu/books/1141/thumbnail.jp

Correlations in nuclear energy recurrence relations

The excitation energies of states belonging to the ground state bands of heavy even-even nuclei are analysed using recurrence relations. Excellent agreement with experimental data at the 10 keV level is obtained by taking into account strong correlations which emerge in the analysis. This implies that the excitation energies can be written as a polynomial of maximum degree four in the angular momentum.Comment: 4 pages, 1 figure, 1 table, 9 reference