Соотношения взаимности для открытых нелинейных систем в переменных полях

А proof of reciprocity relations for nonlinear systems in inhomogeneous variable electric and magnetic fields in the presence of unsteady spin currents, thermodynamic flows and mechanical disturbances is obtained by the Kubo method in the approximation of Markov relaxation and locally quasi-equilibrium distribution.

Corporate Social Responsibility and Reciprocity Relations during Covid-19

This research work opens an interpretative view on corporate social responsibility (CSR) during an unexpected emergency reality and latent environmental collapse as a strategy to survive. The investigation approach follows the lines of a field analysis survey based on 288 consumers before (n=80) and during the spread of Covid-19 (n=208). The study aims to provide paradigms and interpretations of evidence-based CSR as a balanced reciprocity relationship in coping emergencies; this necessarily moved the authors to investigate the relationship transversally, examining the role of budgeting and its repercussions on well-being by hierarchical leadership. Specifically, the authors investigate the existence of possible niches of actions based on cooperative and responsible operations during emergencies.

Accountability Bargains in Pakistan

Poor and marginalised citizens rarely engage directly with the state to solve their governance issues in fragile, conflict and violence-affected settings, as these settings are characterised by the confrontational nature of state–citizen relations. Instead, citizens engage with, and make claims to, intermediaries some of them public authorities in their own right. What are these intermediaries’ roles, and which strategies and practices do they use to broker state–citizen engagement? We argue that in Pakistan intermediaries make themselves essential by: (1) being able to speak the language of public authorities; (2) constantly creating and sustaining networks outside their communities; and (3) building collectivising power by maintaining reciprocity relations with their communities. In doing so, households and intermediaries engage in what we are calling ‘accountability bargains’: strategies and practices intermediaries and poor and marginalised households employ in order to gain a greater degree of security and autonomy within the bounds of class, religious, and ethnic oppression.

Reciprocity of poly-Dedekind-type DC sums involving poly-Euler functions

The classical Dedekind sums appear in the transformation behavior of the logarithm of the Dedekind eta-function under substitutions from the modular group. The Dedekind sums and their generalizations are defined in terms of Bernoulli functions and their generalizations, and are shown to satisfy some reciprocity relations. In contrast, Dedekind-type DC (Daehee and Changhee) sums and their generalizations are defined in terms of Euler functions and their generalizations. The purpose of this paper is to introduce the poly-Dedekind-type DC sums, which are obtained from the Dedekind-type DC sums by replacing the Euler function by poly-Euler functions of arbitrary indices, and to show that those sums satisfy, among other things, a reciprocity relation.

Solutions of P-SV and SV-P waves in single-well imaging through reciprocity relations

Single-well imaging (SWI) is a borehole measurement technique for detecting geologic structures outside a borehole by using arrays of receivers to record the waves reflected from these structures. The asymptotic solutions of P-P, SV-SV, and SH-SH waves in SWI have been obtained, but the P-SV and SV-P waves have been ignored in previous studies. It is necessary to know when these conversion waves are large and to estimate these waves when they are not ignorable. The analytical solutions of P-SV and SV-P waves are first derived using reciprocity relations between virtual concentrated forces and acoustic sources. The analytical results agree well with finite-difference solutions for monopole and dipole sources. We have found that, for a given source-receiver offset, the detected converted waves first increase and then decrease with the increase of the source-reflector distance. The relative amplitudes of converted waves to reflected waves are larger than 20% and cannot be ignored when the ratio of source-reflector distance to source-receiver offset is smaller than four. However, when the source-reflector distance is 10 or more times the source-receiver offset and the dip angle of the reflector is smaller than 10°, the amplitudes of the converted waves are smaller than 5% of the reflected waves. Furthermore, the relative amplitudes of converted waves increase with the dip angle of the reflector. The analytical solutions of converted waves are useful for simulating SWI wavefields and checking the inversion results in field logging.

Social Capital Dimensions: A Proposition for Territorial Development

This study proposes an instrument to evaluate territorial social capital as a collective resource, found in the cooperation, trust and reciprocity relations. The evaluation of the territorial social capital was done in three neighboring areas in southern Brazil. These territories have common cultural aspects, although they have experienced different patterns of development. The results show that the territorial social capital can be analyzed according to four factors in this order: proximity, territorial anchorage, reciprocity and collective memory. The proximity and the territorial anchorage are the most powerful factors to explain social capital in these territories.

Refugees, Identity, and the Limits to Inclusion: Revisiting Landlord-Stranger Reciprocity Relations in Contemporary Liberia

Refugees in sub-Saharan Africa residing among host communities experience the need to articulate belonging in order to generate a greater sense of security. Based on the individual life stories of Ivorian refugees in Northeastern Liberia in 2011, Bedert finds that local patterns of integration between landlords and strangers are foregone by the bureaucratic identity of refugees as imposed by the international community. In addition, local integration is not self-evident, as it entails a degree of reciprocity and mutual recognition. In the eyes of landlords, strangers are evaluated based on what they can bring to the table.

Electro-Osmotic Behavior of Polymeric Cation-Exchange Membranes in Ethanol-Water Solutions

The aim of this work is to apply linear non-equilibrium thermodynamics to study the electrokinetic properties of three cation-exchange membranes of different structures in ethanol-water electrolyte solutions. To this end, liquid uptake and electro-osmotic permeability were estimated with potassium chloride ethanol-water solutions with different ethanol proportions as solvent. Current–voltage curves were also measured for each membrane system to estimate the energy dissipation due to the Joule effect. Considering the Onsager reciprocity relations, the streaming potential coefficient was discussed in terms of ethanol content of the solutions and the membrane structure. The results showed that more porous heterogeneous membrane presented lower values of liquid uptake and streaming potential coefficient with increasing ethanol content. Denser homogeneous membrane showed higher values for both, solvent uptake and streaming coefficient for intermediate content of ethanol.

Dicatet Mak!

Debt has been a common phenomenon in people’s lives, both in the big cities, as well as in remote areas. This debt activity has been internalized into people's lives so that it cannot be separated no matter how small. There are quite a number of existing related literatures that deal with this. However, debt is only seen as a means to meet the daily needs of debtors, in which the relationship between creditors and debtors is not far enough studied. The study related to the relationship between creditors and debtors (if any) is still limited. This article seeks to complement the existing literature by examining debt and credit cyrcle that create new relationships in the spectrum of oil palm plantation employees. This ethnographic study takes place in the housing complex of oil palm plantation employees in Kebun Sei Muara, Kalimantan Island. It involved 26 female informants consisting of six women workers, six housewives, and fourteen female traders. Data was collected using in-depth interview in order to explor the reasons for debt, reason for giving debt, the implication of debt, and how parties are related to debt. While participatory observation is carried out by participating in the daily activities of the Kebun Sei Muara community, such as shopping at a food stall, attending parties, helping in various parties, gossiping, social gathering, etc. The study indicates that debt has become the foundation of reciprocity relations in Kebun Sei Muara. This debt is carried out for from daily needs to the need for making life cycle parties, which involve not only the poor, but also rich people. This creates a reciprocal bond between the debtor and the creditor, the host and the guests, as well as creates balanced reciprocity between them. This relationship raises an obligation for both actors involved to give and return the contribution for the attending parties. In this context, there is a norm that requires them to come to provide contribution in the form of money and/or goods to the host, and expecting to have a balanced reciprocity in return. The higher the status, the bigger the party, the more debts the host make, and the return contribution will be used to pay for the debt. The higher the status, the more contribution the guests have to provide, though it depends on the closeness between the host and the guests, as well their previous contribution. Community members, who do not participate in the debt circle, will automatically be ostracized from social activities and are considered as “the others”. Conflict potentially occurs between debtor and creditor when payment is neglected, but this is depended on how the creditor responds to it. It is common, however, that this may be impacted on the future relationship not only between the two, but also with others in the Kebun Sei Muara.