Generalized Generosity: How the Norm of Generalized Reciprocity Bridges Collective Forms of Social Exchange

2021 ◽  
pp. 000312242110074
Author(s):  
Monica M. Whitham

This study examines the potential for small-scale acts of giving that are not directly reciprocated, or generalized generosities, to build social bonds and promote contributions to the group. Social exchange theorists define such acts as generalized exchange. The potential for generalized exchange to build strong social bonds relative to other forms of exchange is the subject of theoretical debate. In this article, I build on two prominent theories of social exchange—affect theory and the theory of reciprocity—to propose that a strong norm of generalized reciprocity may bridge the connective benefits of generalized exchange with the connective benefits of productive exchange, which is a collaborative form of social exchange that involves sharing pooled resources. I argue that a strong norm of generalized reciprocity will activate mechanisms theorized to build strong social bonds in generalized and productive exchange systems, and will promote additional behavioral investments into the group. I test my argument with a controlled laboratory experiment, finding strong support for the proposed causal model. The results of this study have implications for research on generosity, collective action, collaboration, sense of community, and social capital.

2016 ◽  
Vol 20 (4) ◽  
pp. 687-712 ◽  
Author(s):  
Alexander Serenko ◽  
Nick Bontis

Purpose The purpose of this paper is to investigate the impact of exchange modes – negotiated, reciprocal, generalized, and productive – on inter-employee knowledge sharing. Design/methodology/approach Based on the affect theory of social exchange, a theoretical model was developed and empirically tested using a survey of 691 employees from 15 North American credit unions. Findings The negotiated mode of knowledge exchange, i.e. when a knowledge contributor explicitly establishes reciprocation conditions with a recipient, develops negative knowledge sharing attitude. The reciprocal mode, i.e. when a knowledge donor assumes that a receiver will reciprocate, has no effect on knowledge sharing attitude. The generalized exchange form, i.e. when a knowledge contributor believes that other organizational members may reciprocate, is weakly related to knowledge sharing attitude. The productive exchange mode, i.e. when a knowledge provider assumes he or she is a responsible citizen within a cooperative enterprise, strongly facilitates the development of knowledge sharing attitude, which, in turn, leads to knowledge sharing intentions. Practical implications To facilitate inter-employee knowledge sharing, managers should focus on the development of positive knowledge sharing culture when all employees believe they contribute to a common good instead of expecting reciprocal benefits. Originality/value This is one of the first studies to apply the affect theory of social exchange to study knowledge sharing.


2011 ◽  
Vol 133 (3) ◽  
Author(s):  
Konstantin I. Matveev ◽  
Sungmin Jung

The subject of this paper is modeling of low-amplitude acoustic fields in enclosures with nonuniform medium and boundary conditions. An efficient calculation method is developed for this class of problems. Boundary conditions, accounting for the boundary-layer losses and movable walls, are applied near solid surfaces. The lossless acoustic wave equation for a nonuniform medium is solved in the bulk of the resonator by a finite-difference method. One application of this model is for designing small thermoacoustic engines. Thermoacoustic processes in the regular-geometry porous medium inserted in resonators can be modeled analytically. A calculation example is presented for a small-scale thermoacoustic engine coupled with an oscillator on a flexing wall of the resonator. The oscillator can be used for extracting mechanical power from the engine. A nonuniform wall deflection may result in a complicated acoustic field in the resonator. This leads to across-the-stack variations of the generated acoustic power and local efficiency of thermoacoustic energy conversion.


2020 ◽  
Vol 21 (5) ◽  
pp. 1752 ◽  
Author(s):  
Jin Yang ◽  
Jie Zhou ◽  
Hong-Jun Zhou ◽  
Mang-Mang Wang ◽  
Ming-Ming Liu ◽  
...  

Phosphate (Pi) transporters play critical roles in Pi acquisition and homeostasis. However, currently little is known about these genes in oil crops. In this study, we aimed to characterize the five Pi transporter gene families (PHT1-5) in allotetraploid Brassica napus. We identified and characterized 81 putative PHT genes in B. napus (BnaPHTs), including 45 genes in PHT1 family (BnaPHT1s), four BnaPHT2s, 10 BnaPHT3s, 13 BnaPHT4s and nine BnaPHT5s. Phylogenetic analyses showed that the largest PHT1 family could be divided into two groups (Group I and II), while PHT4 may be classified into five, Groups I-V. Gene structure analysis revealed that the exon-intron pattern was conservative within the same family or group. The sequence characteristics of these five families were quite different, which may contribute to their functional divergence. Transcription factor (TF) binding network analyses identified many potential TF binding sites in the promoter regions of candidates, implying their possible regulating patterns. Collinearity analysis demonstrated that most BnaPHTs were derived from an allopolyploidization event (~40.7%) between Brassica rapa and Brassica oleracea ancestors, and small-scale segmental duplication events (~39.5%) in the descendant. RNA-Seq analyses proved that many BnaPHTs were preferentially expressed in leaf and flower tissues. The expression profiles of most colinearity-pairs in B. napus are highly correlated, implying functional redundancy, while a few pairs may have undergone neo-functionalization or sub-functionalization during evolution. The expression levels of many BnaPHTs tend to be up-regulated by different hormones inductions, especially for IAA, ABA and 6-BA treatments. qRT-PCR assay demonstrated that six BnaPHT1s (BnaPHT1.11, BnaPHT1.14, BnaPHT1.20, BnaPHT1.35, BnaPHT1.41, BnaPHT1.44) were significantly up-regulated under low- and/or rich- Pi conditions in B. napus roots. This work analyzes the evolution and expression of the PHT family in Brassica napus, which will help further research on their role in Pi transport.


2019 ◽  
Vol 1 ◽  
pp. 1-2
Author(s):  
André Luiz Alencar de Mendonça ◽  
Carina Coelho Lyra

<p><strong>Abstract.</strong> Concomitant to massive use of interactive maps the actual research agenda in cartography use and user’s issues address the need of evaluating interactivity for specific map uses and users (ROTH et al. 2017). There is established scientific discussion concerning spatial tools and cartographic representations effects on learning and on increasing user’s spatial capabilities and thematic knowledge which lead science of maps to develop methods for evaluating map user and use. This in order to better comprehend and quantify relationships around the extensive universe of map interactivity and contributing to advance a comprehensive theory in how to design interactions when dealing with spatial-temporal representations. As an area of growing interest for the last decade, this research field is being susceptible to technologic advances such as ubiquitous mapping, and map usage became a state-of-the-art study case for nearly all new interactive devices and systems.</p><p>There are several dimensions to comprehend interaction. This work presents a study case based on the concepts of map interface complexity model (Mendonça, Schmidt &amp; Delazari, In Press) focusing on the interaction operators (Roth, 2013) and its effects on map reasoning (Olson, 1976; MacEachren and Ganter, 1990; Roth, 2012) and on cognitive workload (Hart &amp; Staveland,1988) and SUS (System Usability Scale &amp;ndash; Brooke, 1986), the later related to self-perception of usability, with both associated indicating better user experiences in the interaction with devices and interfaces (Longo and Dondio 2015; Borsci, Federici and Lauriola, 2009). Preliminary tests carried out with URUT usability remote evaluations showed more than 80% of usability issues can be assessed from workload and SUS forms (Mendonça, 2017)</p><p>The experience of the 1st author working with public sector and spatial analysis upon conservation of environment in the Amazonas state can be used to estimate that thousands of maps are produced every year to depict present and past situations of the subject, and these are being used by at least three main user groups: environmental professionals, which includes geographers, geologists, environment, forest, agronomic and fishing engineers, both in the public and private &amp;ndash; including NGO &amp;ndash; sectors; education professionals and students, including high school, technical, graduation and post-graduation levels; society in general, considering the appeal of preserving natural ecosystem in one of the most diverse tropical forests in the world. These groups are used to define the study users sample.</p><p>Since this study is focused in map use and user’s interaction, it carried out series of tests to measure and evaluate the role of interactivity in different levels of map tools interactions. Performance on better decision making and better understanding of environmental reality was stated and related to user interactions in order to answer if the variable level of interactivity can be related to better results on pointing out solutions to common maps ultimate goals: to support local and state policies on small scale issues like solid waste residuals disposal in small cities or analyze deforestation patterns together with forest fire focus against conservation units and the mosaic of protected areas. The study is part of a larger project which seeks to make better use of interactive technologies and to increase map use by different actors involved in the subject of monitoring Amazonas State environmental issues. This implies in identifying potential insights on environmental map use at local levels.</p><p>The research main goal was to answer if levels of interactivity will play direct role on increasing understanding upon environmental issues depicted in interactive maps. Secondary research questions include: 1) If environmental professionals consider using interactive mapping techniques when presenting results or studies related to the thematic, and if this can be perceived by means of their strategies of using their own maps or thematic interactive maps built for them. 2) What are current usability and acceptability gaps of proposed interactive map model considering the three evaluated user groups? 3) Will other continuum like the type of input device, user’s personal characteristic plays a more decisive role in the user’s performance? 4) Workload and Usability are related to task performance success when using interactive maps?</p>


Author(s):  
Suryakanthi Tangirala ◽  
Samuel Nlondiwa

Mobile money is an electronic wallet service that allows users to store, send and receive money using their mobile phone. This research is an effort to find out the adoption and utilization of mobile money services in small sized enterprises located in Gaborone, Botswana. Inevitably, other aspects such as different types of transactions carried out using mobile money services in small business, customer’s perception on quality of mobile money service providers, impeding factors of mobile money adoption are also studied for wider understanding of the subject. The findings of the study show that small enterprises use mobile money services to carryout transactions but the level of adoption is not significant. The study revealed that transactional costs and connectivity issues are major barriers of adoption of mobile money services. In conclusion the study recommended that the service providers must improve the connectivity issues and reduce transaction charges in order to increase the utilization of mobile money services


2018 ◽  
Vol 5 (1) ◽  
pp. 91-102
Author(s):  
Febria Demayanti ◽  
Sunaryo Soenarto

Penelitian ini bertujuan: (1) menghasilkan materi video yang layak digunakan sebagai media pembelajaran bagi siswa SMK Jurusan Tata Boga secara umum, dan secara khusus untuk SMK Ma’Arif 2 Sleman. Materi video lebih menekankan pada pengenalan bumbu dan rempah kontinental (continental spice) pada mata pelajaran Pengolahan Makanan Kontinental; (2) mendokumentasikan beberapa bumbu dan rempah kontinental (continental spice) secara detail, meliputi: bentuk, sifat, karakter dan kegunaan bahan tersebut; (3) mengetahui manfaat penggunaan media video pembelajaran dalam meningkatkan hasil belajar siswa. Penelitian pengembangan ini merujuk 3 langkah yang dikembangkan antara lain: (a) praproduksi; (b) produksi; dan (c) pascaproduksi. Uji coba program video dilakukan 2 tahap yaitu skala kecil dan besar. Produk video yang telah direvisi digunakanuntuk pembelajaran PMK. Subjek tes sebelum dan sesudah pembelajaran menggunakan media video untuk mengetahui peningkatan hasil belajar. Pengumpulan data menggunakan teknik wawancara, observasi, dan angket. Teknik analisis menggunakan deskriptif. Validasi ahli materi dan ahli media hasilnya layak digunakan. Penilaian siswa tentang media video pembelajaran bumbu dan rempah kontinental rata-rata siswa memberi tanggapan “sangat layak” serta terdapat peningkatan hasil belajar siswa sesudah menggunakan program video pembelajaran.Kata kunci: video pembelajaran, bumbu dan rempah kontinental, hasil belajar DEVELOPING A VIDEO FOR THE LEARNING OF INGREDIENTS AND SPICES IN THE SUBJECT OF CONTINENTAL CUISINE PROCESSINGAbstractThis study aims to: (1) produce video materials appropriate to be used as learning media for students of Gastronomy in the vocational high school in general and in SMK Ma’arif 2 Sleman in particular; the video materials emphasize the introduction to continental ingredients and spices in the subject of Continental Cuisine Processing; (2) document several continental ingredients and spices in detail including their forms, nature, characters, and uses; and (3) investigate the benefits of the use of the learning video to improve students’ learning achievement. This was a research and development pouting 3 to the steps developed i.e.: (a) preproduction, (b) production, and (c) post-production. Video program testing is done in 2 to the steps; large & small scale. Revised video products are used for PMK learning. Tes subjects before and after learning using video media to the know the improvement of learning outcomes. The data were collected by interview technique, observation, and questioner. The analysis techniques were use descriptive. The results of the validation by the materials and media experts of the results is feasible to be used. The students’ assessment of the video for the learning of continental ingredients and spices show very appropriate responses on the average and there is an increase on the learning outcome after using the learning video program.Keywords: learning video, continental ingredients and spices, learning achievement


2017 ◽  
Vol 1 (1) ◽  
pp. 80 ◽  
Author(s):  
Sônia Palha

Interactive Virtual Math (IVM) is a visualization tool to support secondary school students’ learning of graphs by dynamic events. In the prototype version students construct a graph and try to improve it themselves and with the feedback of the tool. In a small-scale experiment, which involved four classes at secondary and tertiary education and their mathematics teachers we investigated how the students used the tool in the classroom. In this study we focus on the students learning experience and the results are expected to provide knowledge and directions for further development of the tool. The corpus data consists of self-reported questionnaires and lessons observations. One main finding is that students, at different school levels, find the tool useful to construct or improve graphical representations and it can help to get a better understanding of the subject. The tool features that helped students most were the self-construction of the graphs and to get feedback about their own graph at the end. Other findings are that the students can work independently with the tool and we know more about the tool features that are attractive or need to be improved.


2015 ◽  
Vol 65 (1) ◽  
pp. 356-360
Author(s):  
Nicholas Lane
Keyword(s):  
Group I ◽  

πολλὰ γὰρ πολλᾷ λέλεκται, νεαρὰ δ᾽ ἐξευρόντα δόμεν βαϲάνῳ     20ἐϲ ἔλεγχον, ἅπαϲ κίνδυνοϲ· ὄψον δὲ λόγοι φθονεροῖϲιν,ἅπτεται δ᾽ ἐϲλῶν ἀεί, χειρόνεϲϲι δ᾽ οὐκ ἐρίζει.κεῖνοϲ καὶ Τελαμῶνοϲ δάψεν υἱόν, φαϲγάνῳ ἀμφικυλίϲαιϲ.21. ὄψον δὲ λόγοι BD : δὲ λόγοι om. Tricliniusφθονεροῖϲιν BD : φθόνῳ εἰϲίν Vauvilliers (vel potius φθονερῷ ᾽ιϲιν)I translate: ʻFor many things have been told in many ways, but to give novel things, when one has found them out, to the touchstone | For testing is pure danger: words are anamuse-boucheto the envious, | And it fastens on good men always, not taking issue with inferiors. | That too gnawed at Telamon's son, had him writhing on a sword.’ The difficulty presented by the transition in 22 from the plural ʻthe envious' to the singular subject ʻit' will be obvious. However, some commentators, including Mezger, Fennell and Bury, have assumed that φθόνοϲ can be supplied as the subject of ἅπτεται in 22 from φθονεροῖϲιν in 21, and the modern texts of Pindar – Bowra, Puech, Turyn and Snell–Maehler – do not mention the possibility of corruption in 21.


Author(s):  
Catherine Clay

This chapter examines the short fiction content of the feminist weekly Time and Tide alongside readers’ letters printed in the periodical’s correspondence columns. A basic unit of magazine production the short story is also ‘definitional to modernism’ (Armstrong 2005: 52), and during the interwar period its status as commodity or art became the subject of increasing scrutiny and debate. Drawing on examples from amateur writers and well-known figures such as E. M. Delafield, the chapter explores how Time and Tide negotiated readers’ expectations for short fiction amongst its core target audience of women readers. Building on Fionnuala Dillane’s application of affect theory to periodical studies (2016), the chapter uses her concept of ‘discursive disruption’ to consider moments of conflict between Time and Tide and its readers over the short stories it published as moments of opportunity for the periodical to expand its scope, readership and brow, and renegotiate its position in the literary marketplace.


Author(s):  
Stephen Rippon

Rural settlement in Roman Britain has been the subject of many previous studies (e.g. Rivet 1958; 1964; Thomas 1966a; Dark and Dark 1997; Taylor 2007a), although in the past there has been a tendency to assume that lowland regions were uniformly ‘Roman’ and characterized by villas. The construction of villas represents the conscious adoption of a distinctively ‘Roman’ style of architecture by the land-owning class, and rather than being ‘nouveaux riche’ (Russell and Laycock 2010, 111), they are more likely to have been descended from old elites within the pre-Roman kingdoms. The Latin term villa referred simply to a country house, and while in practice the vast majority appear to have lain at the centre of agricultural estates, it is in this true sense—of a country house—that the term is used here (Percival 1988). Most books on Roman Britain try to illustrate the distribution of villas and through simple small-scale maps such as these, and with knowledge of well-known sites such as Bignor and Chedworth, it is easy to draw three assumptions: first, that we know what a Roman villa is, second, that we can map their distribution quite easily, and third that they were a typical feature of lowland areas. All of these assumptions, however, can be questioned. The first—that we understand the nature of Roman villas—seems the most straightforward, although the amount of recent excavation is in fact surprisingly limited as scheduling has protected so many sites from development, andmost of the early work focused on the main residential building as opposed to its ancillary structures. The expansion in first ‘rescue’ and latterly developerfunded excavation has, however, led to a far greater range of rural settlements being excavated and rather than there being a clear divide between ‘villa’ and ‘nonvilla’ sites, we can see that there was a continuum, with low-status timber structures at one end of the scale, palatial houses at the other, and a large number of sites in the middle that meet some, but not necessarily all, of the criteria for being regarded as a villa.


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