Using the tools of structural and network analysis developed by Ronald R. Burt and others, this study investigated the communication patterns among corporate officers of American Telephone and Telegraph Corporation (A.T. & T.) and United Telecommunications Corporation (Sprint). Data on contacts, efficiency, network density, and constraint indicate that opportunities for power and constraint have remained relatively stable at United Telecommunications between 1980 and 1990. A. A.T. & T., on the other hand, was more affected by the drastic changes in the telecommunication industry. The span of A.T. & T. has grown smaller and the potential for constraining relations among A. T. & T. and financial institutions has increased during the period 1980 and 1990.

<p>Health communication is a growing field of research under interpersonal and family communication. Gaining enough health information is primarily the duty of healthcare providers. However, our immediate source of health information is family members; but most people decide to privatize and keep their health information from other relatives. The criterion for withholding health information, what contributes to the information shared, and how communication patterns affect health communication were all examined to understand the reasons behind this action.</p> <p>This qualitative study used the narrations on health communication from various families to form themes. In addition,  responses were mostly from non-Western cultures, which helps to expand the applicability of the theory used.</p> <p>Some of the results were consistent with the criteria within the theory. However, other criteria were found that expand the theory in relation to health information. The new criteria found were when disclosing the information, age matter, I don’t understand the condition myself so how can my family, the number of people in the family matters. Also, reasons such as anticipated reactions from family members, and the severity of the condition came up when exploring what impacts how much health information family members share with one another. Finally, the frequency of communication and the initiator of conservations were found to influence health communication in families.</p> <p>To conclude, healthy communication in the family may impact individual communication on health. </p>

No description available.

Secure information exchanges over cyberspace is on the increase due to the convergence of wireless and mobile access technologies in all businesses. Accordingly, with the proliferation of diverse multicast group service subscriptions that are possible to co-exist within a single broadband network, there is also huge demand by the mobile subscribers to ubiquitously access these services over high speed broadband using their portable devices. Likewise, the Network Providers (NPs) invest hugely in infrastructure deployment to disseminate these services efficiently and concomitantly. Therefore, cyber security in any business is obligatory to restrict access of disseminated services to only authorised personnel. This becomes a vital requirement for a successful commercialisation of exchanged group services. The standard way to achieve cyber security in a wireless mobile multicast communication environment is through confidentiality using Group Key Management (GKM).The existing GKM schemes for secure wireless multicast from literature only target single group service confidentiality; however, the adoption of multiple group service confidentiality in them involve inefficient management of keys that induce huge performance overheads unbearable for real time computing. Therefore, a novel authenticated GKM scheme for multiple multicast group subscriptions known as slot based multiple group key management (SMGKM) is proposed. In the SMGKM, the handovers move across diverse decentralised clusters of homogeneous or heterogeneous wireless access network technologies while participating in multiple group service subscriptions. Unlike the conventional art, the SMGKM advances its security by integrating location based authentication and GKM functions. Both functions are securely offloaded from the Domain Key Distributor (DKD) to the intermediate cluster controllers, Area Key Distributors (AKDs), in a distributed fashion, using the proposed location based authenticated membership list (SKDL). A significant upgrade of fast handoff performance with reduced performance overheads of the SMGKM scheme is achieved. The developed numerical analysis and the simulation results display significant resource economy in terms of reduced rekeying transmission, communication bandwidth and storage overheads while providing enhanced security. The performance of the SMGKM in a high speed environment is also evaluated and has demonstrated that SMGKM outperforms the previous work. Finally, the SMGKM correctness against various attacks is verified using BAN logic, the eminent tool for analysing the widely deployed security protocols. The security analysis demonstrates that SMGKM can counteract the security flaws and redundancies identified in the chosen related art.

No description available.

The aim of the study was to determine the impact of transformational leadership styles of managers on subordinates' job satisfaction, in a steel and mining company. Leadership was conceptualised from the trait, behavioural, contingency and neocharismatic theories. Job satisfaction was derived from content and process theories.The literature highlighted leadership and job satisfaction theories, the changing context of leadership and research of both transformational leadership and job satisfaction. The study was exploratory and a random sample (N=126) was used. The Multifactor Leadership Questionnaire was used to measure transformational leadership and the Job Satisfaction Survey was used to measure subordinate job satisfaction. The results indicated that there was a significant impact of transformational leadership styles of managers on subordinates' job satisfaction, more specifically, in terms of fringe benefits and pay dimensions of job satisfaction, as well as the biographical variable, age. Future research may include transformational leadership styles and other variables such as performance and productivity in the steel and mining industry as well as the biographical variable, age. uture research may include transformational leadership styles and other ariables such as performance and productivity in the steel and mining ndustry. / Industrial Psychology / M.Adm. (Industrial Psychology)

This thesis examines how men and women as co-interactants in management meetings use various interactional mechanisms to play out their roles and identities, as they position their ideas in a particular way for intended meaning and effect. The study aims to demonstrate how a particular approach to the examination of naturalistic data, gathered through the use of a case study design, based on recordings and supported by a number of ethnographic strategies can, when examined and informed by conversation analysis, pragmatics and more indirectly critical discourse analysis, generate further insights into the semantic and pragmatic meanings of utterances. The study focuses on four companies in postcolonial Zimbabwe, where the entry of women into senior management positions has changed the complexion of most organisations, but men continue to be the fundamental power brokers in the corporate workplace, which remains a site of social struggle where language, power and gender are important variables. This study finds that while perceptions of power may not vary significantly between men and women, how they use language to play out this power in meetings is of significance. The study suggests that gender-linked communication styles are reflected in management of talk in areas of influence, such as the corporate boardroom. It also shows that men and women, irrespective of their levels of position power or perceived power, present themselves in meetings in different ways, possibly due to gender-role socialisation processes. Apart from generating some new insights regarding theory and research methodology, and describing and interpreting male-female interaction in an under-researched domain (management meetings in a Zimbabwean corporate setting at a time of major socio-economic transformation), it is hoped that this study will also be of value at an applicational level: serving for instance to support applied linguistic goals such as the development of Language for Specific Purposes courses; and conscientising corporate citizens, in particular, to be more accommodating about, and appreciative of differences in communication styles that may be gender-based. / Linguistics / D.Litt. et Phil. (Linguistics)

Text in Afrikaans / In hierdie verhandeling word die aard van kommunikasie van die Lugmagbasis (LMB) Swartkop onder die loep geneem. Die outeur toon aan dat daar nie altyd duidelikheid is oor die aard van kommunikasie in militere instellings nie. Dit het die prikkeling gebied om die aard van kommunikasie in 'n militere installing te bepaal - in hierdie geval, LMB Swartkop. Die rede vir die studie is om kommunikasie as 'n interne organisatoriese reeling by die LMB Swartkop te ondersoek. Om die agtergrond tot die navorsing te bied, word die ekonomiese- en politieke redes vir verandering by die LMB Swartkop kortliks weergee. Die redes hoekom hierdie Lugmagbasis as fokusgebied gebruik word vir die navorsing, word ook aangevoer. Daar word met die navorsing gefokus op vertikale kommunikasie, horisontale kommunikasie, diagonale kommunikasie, asook enkele interne organisatorieseen omgewingsfaktore. Enkele aspekte ten opsigte van eksterne faktore, soos byvoorbeeld die 1994-verkiesing en die nuwe Grondwet, wat kon lei tot verbetering van kommunikasie te Lugmagbasis Swartkop en die houding van die personeel jeens kommunikasie word ook aangeraak. Die bevindinge van die navorsing wentel rondom die feit dat vertikale, horisontale en diagonale kommunikasie 'n definitiewe bydrae maak om werk op die Lugmagbasis Swartkop effektief te verrig. Hierdie kommunikasie vind hoofsaaklik plaas wanneer daar formeel en informeel oor werk gekommunikeer word. / In this dissertation, the nature of communication of the Air Force Base Swartkop is being put under the magnifying glass. The author indicates that the nature of communication in military organisations is not clear This provided the incentive to study the nature of communication of a military organisation and in this case, Air Force Base Swartkop. The reason for the study is to determine how the nature of communication as an internal organisational arrangement contributes to the effective functioning of the base. This study focuses on vertical, horizontal and diagonal communication as well as internal organisational, external and environmental factors. Aspects such as the personnel's attitude towards communication is discussed as well. The findings of the study centre on the fact that vertical, horizontal and diagonal communication make a definite contribution to the effective functioning of the base. This communication mainly occurs when personnel communicate formally and informally on work. / Public Administration / M.Admin. (Public Administration)

Text in English, abstract in English, Afrikaans and Venda / This study developed and tested an integrated internal communication audit (IICA) tool to evaluate the communication strengths and weaknesses of the Unisa Library. The existing communication audit instruments were explored, namely: the Communication Satisfaction Questionnaire (CSQ) and the International Communication Association (ICA) audit were adapted and complemented by the Organisational Culture Survey (OCS) and the Critical Incident Technique (CIT). The current trends and the trends in South Africa were also explored. The sequential mixed method design consisting of the semi-structured qualitative interviews and the quantitative surveys were used to collect data. The ATLAS.ti and the Statistical Package for Social Sciences (SPSS) software packages were used to analyse qualitative and quantitative data. The results revealed the IICA as an appropriate tool for measuring the integrated internal communication of the Unisa Library. The IICA identified the communication needs of employees; the active and preferred communication channels; and the positive and negative communication experiences of employees. / Hierdie studie het ʼn geïntegreerde interne kommunikasie-oudit (IICA)-hulpmiddel ontwikkel en getoets om kommunikasie-sterkpunte en -swakhede van die Unisa-biblioteek te evalueer. Die bestaande kommunikasie-oudit-instrumente was ondersoek, naamlik: die Kommunikasietevredenheidsvraelys (CSQ) en die Internasionale Kommunikasievereniging (ICA) se oudit is aangepas en gekomplementeer deur die Organisasiekultuur-opname (OCS) en die Kritiese-insident-tegniek (CIT). Die sekwensiële gemengdemetode-ontwerp, bestaande uit die halfgestruktureerde kwalitatiewe onderhoude en die kwantitatiewe opnames, is gebruik om data in te samel. Die ATLAS.ti-programmatuurpakket en die Statistiese Pakket vir Sosiale Wetenskappe (SPSS)-programmatuur is gebruik om kwalitatiewe en kwantitatiewe data te ontleed. Die resultate gewys die IICA as ʼn geskikte hulpmiddel was in die meting van die geïntegreerde interne kommunikasie van die Biblioteek. Die IICA geïdentifiseer die kommunikasie behoeftes van werknemers; die aktiewe en voorkeur kommunikasie kanale; en die positiewe en negatiewe kommunikasie ervarings van werknemers. / Ngudo iyi yo bveledza na u linga tshishumiswa tsha u Sedzulusa Vhudavhidzani ha nga ngomu ho Ṱanganelaho (Integrated Internal Communication Audit (IICA), u ṱola vhuḓi na vhuvhi ha vhudavhidzani kha Ḽaiburari ya Univesithi ya Afrika Tshipembe. Zwishumiswa zwa u sedza vhudavhidzani zwi re hone zwo sedzuluswaho zwi katela: Mbudzisambekanywa dza Vhudavhidzani dzine dza fusha ṱhoḓea (Communication Satisfaction Questionnaire) (CSQ) na tshishumiswa tsha u sedzulusa vhudavhidzani tsha Dzangano ḽa Dzitshaka ḽa Vhudavhidzani (International Communication Association) (ICA). Zwishumiswa izwo zwo ḓadziswa nga tshishumiswa tsha Ṱhoḓisiso ya Mvelele ya Tshiimiswa (Organisational Culture Survey) (OCS) na Tshikalo tsha u ela Maitele a Zwithu zwa ndeme (Critical Incident Technique) (CIT). Pulane ya thevhekano ya maitele o ṱanganelaho o vhumbwaho nga maitele a ṱhoḓisiso ane a shumiswa kha saintsi dza matshilisano (qualitative) na maitele a ṱhoḓisiso ane a shumisa zwiṱatisiṱika na mbalo (quantitative) zwo shumiswa u kuvhanganya mawanwa. Phakhedzhi ya Sofuthiwea ya ATLAS.ti na phakhedzhi ya Siṱatisiṱika ya Saintsi dza Matshilisano (Statistical Package for Social Sciences - SPSS) dzo shumiswa u saukanya mawanwa a ṱhoḓisiso dza matshilisano na a ṱhoḓisiso dza zwiṱatisiṱika na mbalo. Mvelelo dzo bvisela khagala uri IICA ndi tshishumiswa tsho teaho u ela vhudavhidzani ho ṱanganelaho ha nga ngomu Ḽaiburari ya Univesithi ya Afrika Tshipembe. Tshishumiswa itshi tsho bvisela khagala thoḓea dza vhashumi dza vhudavhidzani, zwishumiswa zwa vhudavhidzani zwine zwa khou shumiswa na zwi takalelwaho; na tshenzhemo ya vhashumi kha vhudavhidzani havhudi and vhu si havhudi. / Communication Science / M. Comm (Communication Science)

This thesis examines how men and women as co-interactants in management meetings use various interactional mechanisms to play out their roles and identities, as they position their ideas in a particular way for intended meaning and effect. The study aims to demonstrate how a particular approach to the examination of naturalistic data, gathered through the use of a case study design, based on recordings and supported by a number of ethnographic strategies can, when examined and informed by conversation analysis, pragmatics and more indirectly critical discourse analysis, generate further insights into the semantic and pragmatic meanings of utterances. The study focuses on four companies in postcolonial Zimbabwe, where the entry of women into senior management positions has changed the complexion of most organisations, but men continue to be the fundamental power brokers in the corporate workplace, which remains a site of social struggle where language, power and gender are important variables. This study finds that while perceptions of power may not vary significantly between men and women, how they use language to play out this power in meetings is of significance. The study suggests that gender-linked communication styles are reflected in management of talk in areas of influence, such as the corporate boardroom. It also shows that men and women, irrespective of their levels of position power or perceived power, present themselves in meetings in different ways, possibly due to gender-role socialisation processes. Apart from generating some new insights regarding theory and research methodology, and describing and interpreting male-female interaction in an under-researched domain (management meetings in a Zimbabwean corporate setting at a time of major socio-economic transformation), it is hoped that this study will also be of value at an applicational level: serving for instance to support applied linguistic goals such as the development of Language for Specific Purposes courses; and conscientising corporate citizens, in particular, to be more accommodating about, and appreciative of differences in communication styles that may be gender-based. / Linguistics and Modern Languages / D.Litt. et Phil. (Linguistics)