21 research outputs found
The Minangkabau Rabab Pasisia: Music, Performance and Practice in West Sumatra Indonesia
No full textThis study is a detailed examination of the instrument known as rabab Pasisia Selatan and its performance among the Minangkabau, who are the dominant ethnic group in West Sumatra, Indonesia. It is the first study of its kind in English and compliments two unpublished studies on the topic in Bahasa Indonesia.
Although played on an instrument with the appearance of a violin, the music is indigenous to Minangkabau with characteristics shared by other local genres. It is played in a cross-bowed position in the manner of other Indonesian rebab "spiked fiddles" of which there are many variants. Chapter 1.
The formulation of adat (encapsulating both the Minangkabau worldview and specifics of polity) is examined and found to be key to understanding the creativity of the tukang rabab and the context of musical performances. Adat formulation is characteristically oral and based on discussion and consensus, which affords the resulting decision flexibility and local resonance. The high value placed on localisation has been propagated as an ideal in Minangkabau adat and this ethos extends to the creative attitudes of rabab Pasisia performers. Chapter 2.
This study uses a performance-based approach, drawing on the experiences of the author as a pupil and performer of the rabab Pasisia and documentation from professional players. Fieldwork methods, which combine the observation of music and the process of performing, are investigated in Chapter 3.
Players of the rabab Pasisia are professional musicians hired to celebrate important life-cycle events such as weddings and circumcisions. During all-night performances the male rabab Pasisia player accompanies himself singing poetry (pantun) and extended narrative (kaba). A typical ensemble consists of a lead rabab player (responsible for the kaba) and two or three supporting singers, who bebelas pantun (swap poetry) to the accompaniment of a small frame drum. Chapter 4 looks at the events and settings in which the music is performed, including the process of organising a performance, from the moment that the player is hired, through to post-performance.
The dynamics, aesthetics and creative processes involved in rabab Pasisia performance is explored in Chapters 5-8. Approaches to the transmission of both the verbal and musical elements in this totally oral art form are also examined. With regard to the words the creation of pantun (poetry) in performance is examined, as is the development of a full kaba. Examples of four kaba performances have been transcribed in the Minangkabau language and translated into English, with recordings included on the accompanying compact Disks.
With regard to both the words and the music the pervasive aesthetic is one of recreation, as players prefer not to perform the music the same way each time. The repertoire, however, remains recognisable to the audience because of certain performance conventions. The fluidity/fixity of elements in rabab Pasisia performance are explored, with the help of transcriptions and musical example with a focus on the gelitik which are the rapid, repeated motives played on the rabab, the linking together of which creates a melody line
Arab American Women's Writing and September 11: Contrapuntality and associative remembering
No full text[No abstract available]Abdulhadi Rabab, 2005, SHATTERING STEREOTYP, P71; Abdulhadi Rabab, 2005, MIDDLE E LEFT FORUM; Barakat Halim, 1988, VIABLE LEBANON; Beinin J, 2003, SOCIAL TEXT, V21, P125, DOI 10.1215-01642472-21-2_75-125; Brottman Mikita, 2004, FILM TELEVISION 9 11, P163;0
The effect of poling state, surface charge, and frequency of vibration of piezoelectric poly (vinylidene fluoride) films for bone and neural tissue engineering applications
No full textNovel paradigms for tissue engineering recognize the need for active or smart scaffolds in order to properly regenerate specific tissues. Electrical and electromechanical cues are the most relevant in promoting functionality in tissues such as nerve, muscle, and bone, among others. The existence of electrical phenomena within certain tissues may suggest the requirement of such phenomena (ie., electroactivity, piezoelectricity) during tissue regeneration. For instance, it has been shown that electrically charged surfaces can influence different aspects of cell behavior such as growth, adhesion, or morphology of different cell types, including osteoblast, neural, and muscular cells. Therefore, electroactive materials and, in particular, piezoelectric ones, show a strong potential for novel tissue engineering strategies. Piezoelectric materials have an interesting ability to vary surface charge when a mechanical load is applied, without the need for an external power source or connection wires, a feature that can be taken advantage of in novel tissue engineering strategies. Poly (vinylidene fluoride) (PVDF) is a semi-crystalline and biocompatible polymer with the largest piezoelectric response among piezoelectric polymers, mechanical properties appropriate for tissue engineering applications, and excellent electroactive properties such as piezo-, pyro and ferroelectricity. It was hypothesized that by varying vibration frequencies in piezoelectric substrates, attached neuronal cells would respond with varying onsets of growth.
Since nerves innervate both bones and muscles, we further hypothesized that frequencies that promoted neural growth would also promote bone and muscle cell growth. The first aim of this study sought to investigate the effect of oscillating electric fields on a variety of mesenchymal tissues—human mesenchymal stem cells (hMSCs), bone (osteoblasts), and nerve cells by seeding them on poled and unpoled PVDF membranes and vibrating them at 20, 60, and 100 Hz. The results of this study indicated significant increases in osteogenic activity for both osteoblasts and hMSCs when subjected to mechanical vibration and the piezoelectric effect. Metabolic activity assays of hMSCs and osteoblasts verified that proliferation of both cell types was enhanced due to the piezoelectric effect of poled PVDF films but reduced in response to mechanical stimulation alone. Neurite imaging of undifferentiated and differentiated nerve cells revealed increases in neurite growth in response to mechanical and electrical stimulation.
Bone is itself piezoelectric, it follows that bone cells would respond to piezoelectric substrates. Nerves also come into direct contact with bone, thus it follows that the piezoelectric properties of bone also affect nerve cells. Therefore, the second hypothesis is that piezoelectric substrates with a surface charge most mimicking that of bone will promote increased adhesion and proliferation of bone and nerve cells. Thus, on the second aim of this dissertation is to examine the effect of stationary electric fields on a variety of mesenchymal tissues—human mesenchymal stem cells (hMSCs), bone, and nerve cells by seeding them on tissue culture polystyrene and three kinds of PVDF film surfaces: unpoled films with no surface charge, poled films with cells cultured on the positively charged side of the sample, and poled films with cells cultured on the negatively charged side of the sample. The same methods that were used in investigating the effect of oscillating electric fields on cells were employed to observe how the stationary electric field affects cells differentiation and growth and at the same time points. The results showed a more homogeneous distribution of hMSCs and osteoblasts seeded on negatively poled PVDF films, but no osteogenesis. Metabolic activity assays of hMSCs and osteoblasts indicated that the highest number of viable hMSCs resulted on negatively poled PVDF films while the highest number of viable osteoblasts occurred on positively poled PVDF films. Finally, neurite imaging verified that charged piezoelectric PVDF membranes induce neurite outgrowth more than electrically neutral membranes in the absence of electrical stimulation.
The final goal of this study was to fully characterize the dynamics of the loading environment cells were subjected to, which has not been previously reported in PVDF cell studies, and to correlate the measurements to cell fate. Directly measuring PVDF and media displacement permitted calculation of the actual acceleration PVDF and cells were subjected to and illustrated that the cell culture media has a significant impact on the oscillating pressure imparted to the films and thus the piezoelectric output of the PVDF. From these measurements, it was possible to estimate the voltage output of the PVDF films, which for 100 Hz vibrations were in the physiological range of the action potentials that are experienced by excitable cells such as muscle and nerve. These results suggest a cause for the observed change in morphology of hMSCs towards neuronal cells. The results from this study may better define optimal stimulation parameters for desired cell fate and has already resulted in unexpected and new findings not yet reported in the literature.Ph.D.Includes bibliographical referencesby Rabab Chalab
Konsep Performance Bahasa Minangkabau dalam Novel
No full textThe problem in this study examines the form of performance or reflection of the language system that is on the mind of the speaker in Pinto Anugrah's novel Jemput Terbawa. Performance in a novel deserves to be researched with the aim of knowing the form of the use of speaker language or Pinto Anugrah as an author to convey the intent into a work. Therefore, the purpose of this analysis is to see how the form of performance of pinto anugrah minangkabau language that is influenced by psychology and culture that affects it. The theory used in this study is Simanjuntak (2015). The research method used is the method of listening to or listening to the text and marking the content of the text with a note technique. The data analysis uses the padan method and agih method. All of these forms are based on the opinion of Sudaryanto (1993). The results of this study found that the form of performance in the novel Jemput Terbawa can be seen in several forms, namely the form of dendang, rabab, lusuah, cigak baruak, and rabab jua. AbstrakMasalah dalam penelitian ini mengkaji tentang bentuk performance atau cerminan dari sistem bahasa yang ada pada pikiran penutur dalam novel Jemput Terbawa karya Pinto Anugrah. Performance dalam sebuah novel layak untuk diteliti dengan tujuan untuk mengetahui bentuk pemakaian bahasa penutur atau Pinto Anugrah sebagai pengarang untuk menyampaikan maksud ke dalam sebuah karyanya. Oleh karena itu, tujuan analisis ini adalah untuk melihat bagaimana bentuk performance bahasa minangkabau Pinto Anugrah yang dipengaruhi oleh psikologi dan kebudayaan yang memengaruhinya. Teori yang digunakan dalam penelitian ini adalah Simanjuntak (2015). Metode penelitian yang digunakan menggunakan adalah metode simak atau menyimak teks dan menandai isi dari teks dengan teknik catat. Analisis datanya menggunakan metode padan dan metode agih. Semua bentuk ini didasarkan pada pendapat Sudaryanto (1993). Hasil penelitian ini menemukan bahwa bentuk performance dalam novel Jemput Terbawa dapat dilihat dalam beberapa bentuk yakni bentuk dendang, rabab, lusuah, cigak baruak, dan rabab jua
Problem Solving Training Strategy and Its Effect on Nurse Managers' Thinking and Decision Making Styles
No full textAbstract: Nurse managers must have critical thinking and effective problem-solving skills in order to improve the patient care system, make effective decision, and attain the institutional outcomes, and achieve institutional aims. Aim: Assess the effect of implementing a training strategy about problem solving and measuring its’ effect on thinking and decision making styles of nurse managers. Research design: One group pre- test / post- test research design was used to achieve the aim of the current study. Setting: This study was conducted at Nasser General Hospital. This hospital is affiliated to Ministry of Health hospitals at Qalyoubia Governorate, Egypt. Subjects: The study included 50 nurse managers. Tools: Data were collected by two main scales namely; thinking styles scale, and decision-making styles scale. Results: There were significant statistical differences regarding all dimensions of thinking style and total thinking style throughout implementing a strategy stages with elevation in post strategy and follow up than pre strategy. There were significant statistical differences regarding all dimensions of decision-making style and total thinking style throughout implementing a strategy stages with elevation in post strategy and follow up than pre. Conclusion: There were an improvement of nurse managers’ thinking and decision making styles throughout implementing the problem solving training strategy. Recommendations: Conducting a regular workshop for nurse managers about decision making as needed, conduct regular meeting with staff nurses to identify problems early and manage it, and continuous application of needs assessment to recognize nurse manager regarding decision making.
Keywords: Problem Solving, Thinking, Decision Making, Styles, Strategy, Nurse Managers.
Title: Problem Solving Training Strategy and Its Effect on Nurse Managers’ Thinking and Decision Making Styles
Author: Azza Mohamed Abd elkader, Rabab Mahmoud Hassan, Fawzia Mohamed Badran
International Journal of Novel Research in Healthcare and Nursing
ISSN 2394-7330
Vol. 9, Issue 3, September 2022 - December 2022
Page No: 19-29
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 21-September-2022
DOI: https://doi.org/10.5281/zenodo.7100584
Paper Download Link (Source)
https://www.noveltyjournals.com/upload/paper/Problem%20Solving%20Training%20Strategy-21092022-3.pdfInternational Journal of Novel Research in Healthcare and Nursing, ISSN 2394-7330, Novelty Journals, Website: www.noveltyjournals.co
The Feminist Narrative in the Lebanese War Novel: Hikayat Zahra and Bareed Beirut as a Model
No full textتسعى هذه الدّراسة إلى رصد السّرد النّسويّ في ظلّ الحرب في روايتي حكاية زهرةوبريد بيروت للكاتبة اللّبنانيّة حنان الشّيخ، إذ لعبت الحرب الأهليّة اللّبنانيّة في هاتينالرّوايتين دورًا بارزًا، هدفت الكاتبة من خلاله إلى الكشف عمّا أحدثته هذه الحرب مندمار وتشويه لكلّ ما هو جميل في لبنان. ففي حكاية زهرة، فجّرت هذه الحرب كلّمساوئ المجتمع الذّكوريّ، على مستوى العلاقات الاجتماعيّة والأسرة والأفراد، منخلال شخصيّة زهرة المُستلبة ومرضها النّفسيّ. ثمّ جاءت رواية بريد بيروت لتُعبّرفيها الكاتبة عن المظاهر الأساسيّة لمرحلة ما بعد الاجتياح الإسرائيليّ للبنان، ممّايجعلها استكمالًا لرؤية حكاية زهرة التي تناولت المراحل الأولى للحرب، لتكون هذهالرّواية دليلًا على حتميّة هذه الحرب التي كشفت عيوب المجتمع اللّبنانيّ، ووسيلةللكاتبة لتمرير رسالتها الإنسانيّة الوطنيّة بوجوب التّشبّث بالوطن وعدم هجرته مهماكانت الظّروف ومهما ساءت الأحوال. أمّا على صعيد الشّكل، فقد وجدنا كسرًا للتّتابعالزّمنيّ في الرّوايتين، بحيث تنهض الحبكة على تفكيك الحدث إلى حبكات فرعيّةمتشعّبة ومتداخلة، ممّا يؤكّد انفتاح الكاتبة على أشكال تعبير وأساليب جديدة.This study seeks to review the feminist narrative during the war within thenovels Hikayat Zahra [The Story of Zahra] (1980), and Bareed Beirut [BeirutPost] (1992) authored by the Lebanese writer Hanan al-Shaykh.Given the substantial impact of the Lebanese civil war on these literary works,the author’s intent was to unveil the profound repercussions of this conflictillustrating the devastation and perversion it wrought upon the once aestheticallypleasing landscape of Lebanon.In The Story of Zahra, the war lays bare the inherent flaws within male-dominated societal structures, manifesting in disrupted social dynamics withinfamilies and interpersonal relationships, as reflected through Zahra’s fragmentedidentity and psychological afflictionIn the novel Beirut Post, the author illustrates the fundamental facets of the post-Israeli invasion of Lebanon, providing a comprehensive perspective thatcomplements Zahra’s story, which primarily focuses on the war’s initial phases.By presenting this novel as an inevitability stemming from the war, one thatexposes the imperfections of Lebanese society, the author effectively conveys anational humanitarian message. This message underscores the imperative toremain steadfastly connected to one’s homeland, regardless of prevailingcircumstances and notwithstanding the severity of the conditions at hand.
As for the form, discontinuity was we found in the chronological order in thetwo novels, so it was clear that the plot has dismantle the event into complexand overlapping subplots, which confirms the writer’s openness to new literaryforms and methods
Author Correction: Stretchable nanofibers of polyvinylidenefluoride (PVDF)/thermoplastic polyurethane (TPU) nanocomposite to support piezoelectric response via mechanical elasticity
No full textThe original version of this Article contained an error in the spelling of the author Abdulrzak Masrani which was incorrectly given as Abdulrazak Masrani. The original Article has been corrected. © The Author(s) 2022
Maps between classifying spaces
No full textA basic technique in topology is to reduce a geometric classification problem to a
homotopy classification of maps into an associated “ classifying space ” or universal
object. This makes the homotopy classification of maps a central topic in algebraic
topology. Much of the current development is inspired by the hope of finding a truly
general solution. The aim of this thesis is to study classifying spaces of Lie groups
and maps between them, and to study equivariant K-theory KG , in particular, for
discrete group G .
The basic problem of homotopy theory is to classify spaces and maps between
spaces, up to homotopy, by means of invariants like cohomology. In the last two
decades some striking progress has been made with this problem when the spaces
involved are classifying spaces of compact Lie groups. For example it has been
shown, for G connected and simple, that if two self maps of BG agree in rational
cohomology then they are homotopic. It has also been shown that if a space
X has the same mod p cohomology, cup product, and Steenrod operations
as a classifying space BG then ( at least if p is odd and G is a classical
group ) X is actually homotopy equivalent to BG after mod p completion.
Similar methods have also been used to obtain new results on Steenrod's
problem of constructing spaces with a given polynomial cohomology ring.
The study of maps between classifying spaces goes back to Hurewicz
[19,p.219], who in 1935 showed that
[X,Y] =Hom ( π1(X), π1(Y))/Inn(π1(Y))
for any pair of spherical spaces X and Y. This result might suggest a hope
that all maps between the classifying spaces of any pair of compact Lie
groups should be induced by homomorphisms. Much later however, in
1970, Sullivan [39] provided the first counterexamples, by constructing
maps ( called `` unstable Adams operations'' ) which did not agree even
in rational cohomology with any map induced by a homomorphism. In
1976, Adams and Mahmud [3] published the first systematic study of the
problem of determining the homological properties of maps between
classifying spaces of compact connected Lie groups. In 1978, Adams [2]
extended some of the results to the case of non-connected Lie groups by
using complex K-theory; while Adams and Mahmud [4] in 1983 identified
further restrictions which could be made using real or symplectic K-theory.
In 1990, Jackowski; McClure and Oliver [21] proved several results
regarding self -- maps of classifying spaces BG of a compact connected
simple Lie group G. In 1991, Wojtkowiak [41] investigates maps between
possibly different p-completed classifying spaces of compact connected
Lie groups, if p does not divide the order of the Weyl group of G, then the
author gives a description of [ (BG)p , [( BG' )p ] terms of (1) K-theory and
(2)``admissible maps of Adams and Mahmud'. In 2001, Luck and Oliver [27]
proved a version of Atiyah-Segal completion theorem for proper action of
an infinite discrete group G, also they showed for such G and a proper
finite G-CW-complex X, that KG (X) can be defined as the Grothendieck
group of the monoid of G-vector bundles over X. The thesis consists of five
chapters.
The first chapter is devoted to study theory of \ topological groups and
Lie groups. A Lie group is at the same time a group, a topological space
and a manifold : it has therefore three kinds of ''structure'', which are
interrelated.
Section1 is concerned with the properties of groups which result from
the existence in these groups of a topology, called topological groups. We
give the definition and examples of topological groups as well as some of
their properties. In section 2 we study subgroups of topological groups and
quotient spaces of topological groups. Section 3 is for the study of
morphisms and isomorphisms of topological groups. Connected
components and homogeneous spaces of topological groups are studied
in sections 4 and 5. The notions of topological groups and manifolds are
combined to give the definition of Lie groups. For which section 6 is
devoted. Sections 7,8,9,10, and 11 are for the study of subgroups of Lie
groups, quotient spaces and homogeneous spaces of Lie groups. Unless
otherwise specified the materiels in this chapter can be found in [12; 13;
28].
In chapter two we study universal bundles, which are principal Gbundles
with extra structure. A base space of a universal bundle is called a
classifying space of G. In 1956, John Milnor [29] gave a general
construction of the universal bundle for any topological group. His
construction uses the infinite join of the group with itself to define the total
space of the universal bundle.
In section 1 we study G-spaces and G-bundles for a topological group
G. Section 2 is devoted for the study of principal G-bundles and we will
give some examples. In sections 3 and 4 the categories of principal
bundles and induced bundles are studied. In section 5 we introduce the
theory of fibre bundles. The set of isomorphism classes of numerable
principal G-bundles over a space define a cofunctor denoted kG we study
this cofunctor in section 7. The elegant construction of a universal bundle
known as Milnor construction is studied in section 8. In section 9, we prove
that the bundle which comes from the Milnor construction is a universal
principal G-bundle. Section 10 is devoted for the study of principal Gbundles
over a CW-complex. In section 11 we study the classifying space
and the reduction of the structure group. The materiels in this chapter can
be found in [20; 29; 35; 38].
In chapter three we study elementary representation theory. Every
representation M of a topological group G and every principal bundle ξ over
X determine a fibre bundle ξ[M] over X that admits the structure of a vector
bundle. The function assigns to M an ξ[M] can be extended to a group
morphism from the representation ring R(G) into K(X) , so one can study
K(X) using this morphism.
In section 1 we introduce the general idea of G-modules, we end up this
section by giving the definition of a semisimple G-module. The
representation ring R(G) is introduced in section 2. In section 3 we prove
that for a compact topological group G, every G-module is semisimple.
Section 4 is devoted to prove that, for a compact topological group G, the
representation ring R(G) is freely generated by the classes of the simple Gmodules.
Maximal tori and the representation ring of a torus are studied in
sections 5 and 6. To study completion of topologies given by sequences of
subgroups, we need the notion of inverse limit, this is done in section 7.
Cauchy sequence in a topological group G and the completion G^ of G is
considered in section 8. Completion of topologies given by sequences of
subgroups is studied in section 9. Completions of rings and modules are
studied in section 10. Finally in section 11, we define the completed
representation ring with respect to the I(G) -adic topology :
Lim R(G)^ = ← R(G) / I(G)n.
The materiels in this chapter can be found in [1; 7; 8; 11; 20].
The purpose of chapter four is to introduce the complex equivariant Ktheory.
The theory is defined on spaces with group action in a way parallel
to the ordinary K-theory.
In section1 we recall some definitions and simple facts concerning
equivariant vector bundles. Section 2 is devoted to the construction of
equivariant K-theory as a cohomology theory by considering the
equivariant vector bundles on G-spaces.
To avoid tedium, some proofs are omitted as they can be found in the
given references [5; 36].
The aim of this project is to study equivariant K-theory for discrete
group, and also to study maps between classifying spaces of compact Lie
groups. Chapter five is devoted to study these concepts.
In section 1 we proof that “For any discrete group G, the groups KG(X,A)
extend to a Z2 -graded multiplicative equivariant cohomology theorem on
the category of finite proper G-CW-pairs. In particular, KG^ a homotopy
invariant cofunctor, satisfies excision, and there is an exact sequence
K0
G ( X,A ) → K0
G ( X ) → K0
G ( A )
↑ ↓
K1
G ( A ) ← K1
G ( X ) ← K1
G ( X,A )
Of K*
G ( X )-modules for any finite proper G-CW-pair (X,A). For any pushout
X=X1 ∪A X2 where (X1,A) is a finite proper G-CW-pair, all maps in the induced
Mayer-Vietoris sequence are K*
G (X) linear. For finite subgroups H ofG
there are natural isomorphism K0
G (G/H ) = R(H) and K1
G ( G/H ) = 0. If G is
finite and X is compact, this construction agrees with the classical
definition''.
In section 2 we use complex equivariant K-theory to study maps
between representation spheres SU and SW of a compact Lie group G,
where U and W are unitary representations of G, and we prove that “ Let U
and W be the unitary representation of a compact connected Lie group G
with dim U = dim W and eU ≠ 0 . If there exists a G-morphism f : SU →
SW, then
1) deg ( f ) uniquely determined by U and W, and
2) in particular, deg f = 0 if eW = 0 ”
Section 3 is devoted to study the set [ BG,BG' ] of homotopy classes of
maps from BG to BG' by means of admissible maps, we show that “ For
any p-toral group P , and any compact Lie group G, the map
B : Rep(P,G) → [BP,BG]
is a bijection, and the completion map
[BP,BG] → [BP,BG^]
is injective, and is bijective if P is a finite p-group ” . We end up this section
by showing that “ Two compact Lie groups G and G' are isomorphic as Lie
groups if and only if BG and BG' are homotopy equivalent ”.
The thesis ends with a list of references, which by no means is
exhaustive on the subject, but lists only those references which have been
either directly used or have relevance to our work
Improving of the Decision-Making Process Towards Climate Change Adaptation in Transport Infrastructures
No full textPublisher Copyright: © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.Transport infrastructure (TI) is one of the most vulnerable assets to climate change (CC) impacts. With the dramatic increase in climate induced hazards, the crucial role of LS to society, economy and environment has put this area as a significant topic in need of improvement. There are several methodologies and climatic data that exist in research for mitigation of climate change impact, but it is often perceived difficult to translate this data into a simplified integrated process that can be followed by infrastructure managers ensuring effective asset management. Accordingly, the need for implementing climate adaptation measures can be justified through a criterion for having quantifiable key performance indicators to facilitate comparison of different solutions and simplify the decision making including different stakeholder engagement, resilience assessment, sustainability consideration and opens doors for the acknowledgement of Nature-Based Solutions as viable options for consideration. This paper aims to present a review for some of the recent current decision-making practices towards climate resilient Transport infrastructures and possibilities for in depth assessment and long-term monitoring and improvement.Peer reviewe
