Reliable data transfer and energy efficiency are the essential considerations for network performance in resource-constrained underwater environments. One of the efficient approaches for data routing in underwater wireless sensor networks (UWSNs) is clustering, in which the data packets are transferred from sensor nodes to the cluster head (CH). Data packets are then forwarded to a sink node in a single or multiple hops manners, which can possibly increase energy depletion of the CH as compared to other nodes. While several mechanisms (...) have been proposed for cluster formation and CH selection to ensure efficient delivery of data packets, less attention has been given to massive data communication processes with sink node. As such, failure in communicating nodes would lead to a significant network void-holes problem. Considering the limited energy resources of nodes in UWSNs along with the heavy load of CHs in the routing process, this paper proposes a void-holes aware and reliable data forwarding strategy (VHARD-FS) in a proactive mode to control data packets delivery from CH nodes to the sink in UWSNs. In the proposed strategy, each CH node is aware of its neighbor’s performance ranking index to conduct a reliable packet transmission to the sink via the most energy-efficient route. Extensive simulation results indicate that the VHARD-FS outperforms existing routing approaches while comparing energy efficiency and network throughput. This study helps to effectively alleviate the resource limitations associated with UWSNs by extending network life and increasing service availability even in a harsh underwater environment. (shrink)

A shared narrative in the literature on the evolution of cooperation maintains that social _learning_ evolves early to allow for the transmission of cumulative culture. Social _norms_, whilst present at the outset, only rise to prominence later on, mainly to stabilise cooperation against the threat of defection. In contrast, I argue that once we consider insights from social epistemology, an expansion of this narrative presents itself: An interesting kind of social norm — an epistemic coordination norm — was operative in (...) early and important instances of specialised social learning. I show how there’s a need for such norms in two key social learning strategies and explain how this need is constituted. In assessor-teaching (e.g. Castro et al., 2019b, 2021), epistemic coordination norms allow agents to coordinate around the _content_ of social learning, i.e., what is to be known and how this is to be done. These norms also allow agents to coordinate around the form of cultural learning in what’s sometimes called strategic social learning (Laland, 2004; Hoppitt & Laland, 2013; Heyes, 2018, Chap. 5) and elsewhere. Broadly speaking, this concerns how cultural learning is organised within the social group. The upshot is that the evolution of social learning and social norms are intertwined in important and underappreciated ways from early on. The above matters as it informs our views about the evolution of social norms more generally. Truly _social_ norms emerged to coordinate a plurality of complex behaviours and interactions, amongst them specialised social learning. I substantiate this view by contrasting it with Jonathan Birch’s views on the evolution of norms. What results is a general but cohesive narrative on the early evolution of social norms. (shrink)

El artículo reexamina individualmente los escasos testimonios pre-clásicos en los que se verifica por primera vez el término bárbaros. Se instrumentará un enfoque discursivo en relación con la ocurrencia del término en las fuentes arcaicas -atento al plano morfosintáctico, semántico y pragmático- con el objeto de obtener indicios y formulaciones de conjunto que puedan enriquecer el debate en torno a la génesis de la voz bárbaros y, en especial, contribuir a echar luz sobre las múltiples connotaciones semánticas que adquirirá el (...) término en su diseminación y proliferación en la etapa posterior a las Guerras Médicas. The paper reexamines individually the sparse pre-classical sources containing the term bárbaros. The analysis of the extant archaic evidence adopts a discursive approach -which encompasses morphosyntactic, semantic and discourse-pragmatic features- in an attempt to shed light on the still much-debated origin of the word bárbaros and, notably, on the manifold semantic connotations the word bárbaros later acquires as its use becomes pervasive in the aftermath of the Persian wars. (shrink)

El trabajo propone un análisis discursivo del diálogo entre Jerjes y Demarato previo al ataque persa contra los griegos, dramatizado por Heródoto en 7. 101-104. Se examina la interacción entre los interlocutores a los fines de: a) identificar los roles discursivos y estrategias argumentativas puestas en juego por ambos participantes, b) analizar las identidades sociales construidas en la interacción y la eventual -y remisa- demarcación de un éthos griego y bárbaro, c) especular sobre el significado del episodio en el contexto (...) de las Historias y las connotaciones ideológicas de la presunta relación entre la autocracia persa y la realeza espartana. The paper offers a discursive analysis of the dialogue between Xerxes and Demaratus, prior to the Persian attack on the Greeks, as dramatized in Herodotus 7. 101-104. The interaction between the interlocutors is closely explored in order to: a) outline the discursive roles and argumentative strategies deployed by either participant, b) address the social identities constructed throughout the interaction and the prospective, albeit hazy, delineation of a Greek and barbarian éthos, c) speculate on the significance of the episode in the context of the Histories and the ideological implications of the alleged relationship between the Persian autocracy and Spartan kingship. (shrink)

Ladyman and Ross argue that quantum objects are not individuals and use this idea to ground their metaphysical view, ontic structural realism, according to which relational structures are primary to things. LR acknowledge that there is a version of quantum theory, namely the Bohm theory, according to which particles do have denite trajectories at all times. However, LR interpret the research by Brown et al. as implying that "raw stuff" or haecceities are needed for the individuality of particles of BT, (...) and LR dismiss this as idle metaphysics. In this paper we note that Brown et al.'s research does not imply that haecceities are needed. Thus BT remains as a genuine option for those who seek to understand quantum particles as individuals. However, we go on to discuss some problems with BT which led Bohm and Hiley to modify it. This modified version underlines that, due to features such as context-dependence and non-locality, Bohmian particles have a very limited autonomy in situations where quantum effects are non-negligible. So while BT restores the possibility of quantum individuals, it also underlines the primacy of the whole over the autonomy of the parts. The later sections of the paper also examine the Bohm theory in the general mathematical context of symplectic geometry. This provides yet another way of understanding the subtle, holistic and dynamic nature of Bohmian individuals. We finally briefly consider Bohm's other main line of research, the "implicate order", which is in some ways similar to LR's structural realism. (shrink)

In this study, after a short introductory information on the etymology, origin, and transition of botanical knowledge in Medieval Islamic Civilisation, we made a comparison of illustrated botanical works in Maghreb and Masriq through two illustrated books. We studied on randomly selected illustrations from Kitab al- Hashaish at-Tibb li-Diskuridus al-Aynzarbi translated by Istefan ibn Basil & Hunayn ibn Ishaq from Dioscorides’ Materia Medica, and Kitab al-Adwiyat al-Mufradat of Abu Ja’far Ahmad al-Ghafiqi, the Andalusian physician, pharmacist, and herbalist. We made (...) comparisons on the illustrations of nine plants and one lichen, chosen from Codex Osler of al-Ghafiqi, and Codices Ayasofya of Istefan-Hunayn, with real photos of plants and lichen, via the methods used currently in the science-art of botanical illustration. With this «botanical illustrative method», we conclude that in the same century, the work of al-Ghafiqi has been copied in a more accurate way than that of Istefan-Hunayn translation. -/- تخصص هذه الدراسة - بعد تقديم معلومات تمهيدية موجزة عن علم أصل الكلمات، وأصول وتطور المعرفة النباتية في الحضارة الإسلامية في العصور الوسطى - للتحليل المقارن للمؤلفات في علم النبات المصور في المغرب والمشرق، من خلال كتابين مصورين. و لهذه الغاية، قمنا بتحليل سلسلة من الرسوم، إختيرت بشكل تلقائي، أُخذت من كتاب النباتات الطبية لصاحبه دِيُسوفُورِيدس، و من ترجمة ابن استيفان ابن باسل و حنين ابن إسحاق لدراسة المادة الطبية لديسوفوريدس، و من كتاب الأدوية البسيطة لأبو جعفر أحمد الغافقي، و هو طبيب و صيدلي و عشاب أندلسي. لقد أجرينا مقارنات لرسوم تسعة نباتات و أشنة وقع الإختيار عليها من كتاب أوسلر للغافقي و من كتب أياصوفيا لإستيفان و حنين، مع صور حقيقية لعينات من هذه الأنواع، باستخدام الطرق المطبقة في وقتنا الراهن في فن وعلم الرسوم النباتية. و بعد تطبيق هذا المنهج التصويري النباتي، نستطيع أن نخلص إلى أنه، و على الرغم من إنتاجها في نفس القرن، فإن نسخ رسوم الغافقي النباتية كانت أكثر دقة من تلك الموجودة في ترجمة استيفان - حنين. الكلمات المفتاحية دِيُسوفُورِيدس، الغافقي، تاريخ علم النبات، الأندلس -/- Este estudio –tras una breve información introductoria sobre etimología, orígenes y evolución del conocimiento botánico en la civilización islámica medieval– está dedicado a un análisis comparativo de los tratados botánicos ilustrados en el Magreb y en el Máshreq, a través de dos libros ilustrados. Para ello, hemos analizado una serie de ilustraciones, elegidas al azar, extraídas del Libro de plantas medicinales de Dioscórides por Anazarba, traducción de Istefan ibn Basil y Hunayn ibn Ishaq del tratado De materia medica de Dioscórides, y del Libro de los medicamentos simples de Abu Ya'far Ahmad al-Gafiqi, médico, farmacéutico y herbolario andalusí. Hemos llevado a cabo comparaciones de las ilustraciones de nueve plantas y un liquen, escogidos del códice Osler de al-Gafiqi y de los códices Ayasofya de Istefan-Hunayn, con fotografías reales de especímenes de dichas especies, acudiendo a los métodos aplicados actualmente en el arte y ciencia de la ilustración botánica. Tras este «método ilustrativo botánico», podemos concluir que, aunque llevadas a cabo en el mismo siglo, las copias de ilustraciones de al-Gafiqi han resultado más precisas que las de la traducción de Istefan-Hunayn. (shrink)

In the preface to his commentary on the Song of Songs, Theodoret of Cyrrhus states that the book has without doubt a spiritual meaning and that a literal interpretation is worthy only of wicked heretics, ridiculous in their own blindness, amongst whom it is difficult to include Theodore of Mopsuestia. The spiritual nature of the Song of Songs is supported by the reference to Esdra and by the many early Fathers who have commented upon it (amongst whom Eusebius has pride (...) of place, followed by Origen, then Cyprian for the struggle against heretics) or who have acknowledged it as sacred (amongst whom are Basil, Gregory of Nazianzo and, contrary to common belief, Amphilochius of Iconium). The sacredness of the work voids its immoral content and compels one to interpret it in an allegorical way. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:UNREAL REAL,JSM RAYMOND DENNEHY University of San Francisco San Francisco,, California Contextual Realism, a Meta-Physical Framework for Modern Science. By RICHARD H. SCHLAGEL. New York: :Raragon House, 1986. Pp. xxiv + 808. $22.95 (cloth). ISBN 0-913729-20-5. The Many Faces of Realism. By HILARY PuTNAM. LaSalle, Ill.: Open Court, 1987. Pp. 98. $8.95 (paper). ISBN 0-81269043 -5. Varieties of Realism: A Rationale fo!f' the Natural Sciences. By RoM HARR.E. Oxford (...) and New York: Basil Blackwell, 1986. Pp. vii + 375. $34.95 (cloth). ISBN 0-631-12592-2. REN PASSMORE wrote his assessment of British moral philosophy, he lamented that the fifty years which :had elapsed since 1900 had produced nothing beitter than so many variations on utilitarianism. Equally, a lament seems in order over the ourrent state of epistemology. After so many years of grappling with the problem of v,aJidating epistemo1log~cail!l'eailism-consider, for example, the American scene during the first severail decades of this century: Roy Wood Sellars et al. announcing the "new realism '' and George Santayana et al. announcing,the "critical realism "one might have hoped for 1 an oiutcome more reassuring than Hie current £deistic realism. But if the fideism disappoints, its rationalizations fascinate. Take, for examp1e, the trio o.f books discussed herein. They undertake a common project: to forge a raitionaJ justification for realism. They shave other features, not so 1audatory, especiaUy :a merely fideis:tic ioommitment to what might best be deseribed as generic realism, which finally evaporaites into 631 RAYMOND DENNEHY idealism. The mo,sit thait the authors can muster on behalf of realism amounts: to no more than this: " Something (what, we don't know) must e.rist outside our minds heearuse we aict on that premise with considemhle success, not only in daily life hut in scientific prructice, aillld a~l the theories used to explruin it aDJd its successes form a logieally coherent whoJe." In other wo11ds, whait these "defenses'' of rerulism offer is a pragmatic representationalism, organized and ultimaitiely vindi!caited by the ideaJist criterion of coherence and der,iving overai11 inspiration from a blind faith in e~tmmental reality. The tip-off,fa,in the books' titles: Contextual Real-ism, The Many Fa(')es of Realism, and Varieties of Realism. How can you taJk about the "contexts," " v;arieties,'' and "many faces " of realism if__,espreiciaJJy by your own admiss:ion-you cannot identify 11eaJ,ity itself? The answer is found in fideism: you want to affirm extramentaJ reality, even though y;ou find it impossible to justify 1that affirmation,rationaHy. So, in a flush. of ega,1itarian fervur, you aooept au plausible claimants to the title of " reality "; and being unabJ:e to say that any one c~aim­ ant is more or ~ess 11eal than any other, you hope to bring matters to a happy conclusion by apperuling to "varieties," "con- :te:xJts," and "many faces" of rea1ity. Hut the imperatives of life and thought maroe,a harmoniza-,tion of ail1l these " realities'' inevitable if anything resembling tl'IUe and false assertions is to he sav;ed. If, for example, common sense tells us that the11e 1a11e,ice cubes and scienee teHs us that the11e are only indeterminate mass particles, we will want to know how these 1 asse11tions can both be true. Clearly, the V'enerahle correspondence criterion of truth won't do here, is:ince we are fruoed with two oompeting objects of correspondence. It thus becomes necessary to enlist :the aid of the pragmatic theory of tmth to deoide which of the " realities " wil,l be designated " xeal '' in a part:iou~ar set of circumstances. Anticipating PiUtnam's examp~e, we ma.y then say that ice cubes~ and pink ones aJt that__,are real when we wish to mix drinks and that iDJdeterminate mass particles,a~11e reail when we wish UNREAL REALISM 633 to produce a scientific ruoom.mt of the phenomenon caHed " ice cubes." Still,.antil(Jipating Schlagel, not even pragmatism carries us far enough because it depends on knowing which resuJtis are felicitous. We thus turn fo the cohe11ence theory of tmth as our final court of... (shrink)

Basil Bernstein rarely had a good press in the forty-odd years in which he presented his developing theories to the public. Early admiration for his sociolinguistic 'discoveries' - of codes which regulate, at a deep-structural level, family beliefs and behaviours and relationships, as well as surface utterances - turned quite quickly into a suspicion that his description of social class difference amounted to a declaration of working class deficit. Although Bernstein's writings, particularly in the 1990s, became opaque to the (...) point of seeming to be purposefully obscurantist, they have always been enlivened by clear, pithy and punchy statements which left no room for ambiguity about the case he was making. The struggle to achieve an education system which would offer genuinely equal opportunities to children from all class and cultural backgrounds continued to underpin the writing and teaching of his later years. (shrink)

This paper aims to assess knowledge management maturity at HEI to determine the most effecting variables on knowledge management that enhance the total performance of the organization. This study was applied on Al-Azhar University in Gaza strip, Palestine. This paper depends on Asian productivity organization model that used to assess KM maturity. Second dimension assess high performance was developed by the authors. The controlled sample was (364). Several statistical tools were used for data analysis and hypotheses testing, including reliability Correlation (...) using Cronbach’s alpha, “ANOVA”, Simple Linear Regression and Step Wise Regression. The overall findings of the current study suggest that KMM is suitable for measuring and lead to enhance high performance. KMM assessment shows that the university maturity level is in level three. Findings also support the main hypothesis and it is subhypotheses. The most important factors effecting high performance are: Processes, KM leadership, People, KM Outcomes, Knowledge Process. Furthermore the current study is unique by the virtue of its nature, scope and way of implied investigation, as it is the first study at HEI in Palestine explores the status of KMM using the Asian productivity model. (shrink)

Das in Zusammenarbeit der Westfälischen Wilhelms-Universität Münster und der Ungarischen Akademie in Rom im Oktober 1996 durchgeführte internationale Symposium war den Forschungen der letzten Jahrzehnte zu S. Stefano Rotondo in Rom gewidmet. Der daraufhin publizierte Tagungsband präsentiert neben den Ergebnissen der Bauuntersuchung der frühchristlichen Kirche Beobachtungen zu Materialverwendung und Bautechnik, Beiträge zur Ausstattung des Baus und deren Restaurierung, sowie kunsthistorische Studien zur neuzeitlichen Malerei und Plastik und historische Abhandlungen zur spätmittelalterlichen und neuzeitlichen Nutzungsgeschichte und zum spezifischen Verhältnis der Ungarn zu (...) S. Stefano Rotondo und zu Rom. Sie sind in vier Abschnitten versammelt: I. Archäologie und Baugeschichte: C. Pavolini, La sommità del Celio in età imperiale: dai culti pagani orientali al culto cristiano (S. 17–27); E. Lissi Caronna, Edifici, fasi edilizie, demolizioni, riempimenti nell'area della basilica di Santo Stefano Rotondo (S. 29–33); H. Brandenburg, S. Stefano Rotondo, der letzte Großbau der Antike in Rom. Die Typologie des Baues, die Ausstattung der Kirche, die kunstgeschichtliche Stellung des Kirchenbaues und seiner Ausstattung (S. 35–65); P. Pensabene, Trasformazione urbana e reimpiego a Roma tra la seconda metà del IV e i primi decenni del V secolo (S. 67–84); K. Ringle – S. Landes, Der Einsatz der Photogrammetrie bei der Aufnahme der Kirche in S. Stefano Rotondo in Rom (S. 85–96). II. Kunstgeschichte und Architektur: M. Nimmo, S. Stefano: la recinzione dell'altare di mezzo (S. 97–109); V. Biermann, Die Vita der heiligen Paulus von Theben und Stephanus: Ein neuentdeckter monochromer Gemäldezyklus des 16. Jahrhunderts in der Portikus von S. Stefano Rotondo in Rom (S. 111–127); L. Salviucci Insolera, Gli affreschi del ciclo dei martiri commissionati al Pomarancio in rapporto alla situazione religiosa ed artistica della seconda metà del Cinquecento (S. 129–137). III. Restaurierung: M. Lolli-Ghetti, Basilica di S. Stefano Rotondo, Capella dei SS. Primo e Feliciano, restauro della pavimentazione paleocristiana in opus sectile (S. 139–143); M.G. Filetici, Il restauro del mitreo di Santo Stefano Rotondo nel quadro degli interventi di conservazione dei monumenti archeologici al Celio (S. 145–150); G. Basile, Il restauro del mosaico absidale della Capella dei Santi Primo e Feliciano in Santo Stefano Rotondo a Roma (S. 151–153). IV. Geschichte: J. Krähling, László Gerö und die Basilika Santo Stefano Rotondo (S. 155–157); J. Pál, La fondazione del primo Collegio Ungarico a Roma (1579) (S. 159–164); Á. Vladár, Sulla importanza e sul ruolo determinante della chiesa Santo Stefano Rotondo nella storia degli Ungheresi (S. 165–169); A. Kubinyi, Ungarn in Rom im Spätmittelalter (S. 171–180); P. Sárközy, Il Santo Stefano Rotondo nella storia culturale ungherese (S. 181–188); L. Weinrich, Der Pönitentiar Valentin und die Paulinermönche in S. Stefano Rotondo (S. 189–198). (shrink)

These essays represent an important contribution to modern philosophical theology. They begin with an appreciation of Basil Mitchell's work and then discuss the role of reason in the justification of Christian theism, giving special attention to the nature of informal reasoning in religion and science. The latter essays examine particular arguments raised by specific religious concepts, covering such topics as the problem of evil, conspicuous sanctity, atonement, and the Eucharist. Drawn from a wide spectrum of philosophers and theologians, the (...) contributors include Maurice Wiles, Grace M. Jantzen, Gordon Kaufman, J.R. Lucas, Rom Harr'e, Richard Swinburne, and Michael Dummett. (shrink)

Faults; religious aspects; Islam; Islamic daʻwah.

Knowledge; information; learning, philosophy of; teaching and study.

Tales of good deeds in the light of Hadith.

Islam; customs and practices; Islamic ethics; Islamic law.