677 research outputs found
Analisa Kebijaksanaan Pemasaran dalam Mempertahankan Market Share pada PT. Logikreasi Utama Medan
Dalam menjalankan operasional sehari-hari, PT. Logikreasi Utama tidak terlepas dari permasalahan-permasalahan baik yang dari intern maupun ekstern perusahaan. Masalah yang dihadapi dari dalam perusahaan seperti Sumber Daya Manusia yang masih kurang menguasai produk yang dijual, dan kurang menguasai teknik menjual, kurang menguasai pasar atau costumer yang menjadi sasaran pasa
Magnetic interaction induced by the anomaly in kaon-photoproductions
We study the role of magnetic interaction in the photoproduction of the kaon
and hyperon. We find that the inclusion of a higher order diagram induced by
the Wess-Zumio-Witten term has a significant contribution to the magnetic
amplitude, which is compatible to the observed photon asymmetry in the forward
angle region. This enables us to use the K^* coupling constants which have been
determined in a microscopic way rather than the phenomenological ones which
differ largely from the microscopic ones.Comment: 8 pages, 3 figure
Lost that lovin' feeling: The erosion of trust between small, high-distance partners
We investigate the role of high distance in trust erosion between small partners. High distance is known to hinder the formation of trust between potential partners, but its role in trust erosion in established partnerships is less understood by international business scholars. Through a qualitative longitudinal study, we extend current theory of how high distance effects the trust dynamics between cross-border partners. Specifically, we unearth three inter-related mechanisms that together explain how and why trust can erode due to high distance. We show that before a partnership is formed, high distance can lead partners to erroneously attribute cues to a potential partnerâs high quality, leading to over-expectations of partner performance. Once the partnership is operational, high distance hinders actorsâ ability to understand situational factors associated with disappointing outcomes, and so they are attributed to failings of the partner. At the same time, distance-related challenges of bounded reliability render partners reluctant to discuss partnership outcomes. This can result in a vicious cycle of inertia as partners strive to protect goodwill while abandoning efforts to produce partnership outcome because of doubts of the otherâs quality. Thus, our theoretical model illustrates the limitations of trust and explains how, paradoxically, high distance can facilitate both trust formation and trust erosion
The importance of semiological information based on epileptic seizure history
Semiology is the backbone of any correct categorization of seizures, as epileptic or not, focal or bilateral, and is fundamental to elucidating how they are anatomically generated in the brain. An anatomical hypothesis derived from seizure history is the precondition for optimally designed ancillary studies. Without understanding seizure semiology, no rational therapy is possible. This article describes the semiological approach using patient history based on full use of patientsâ self-reports as well as descriptions by witnesses. Auras represent the subjective aspects of seizures and provide important semiological clues as observable signs, sometimes including rather precise direct anatomical information. Methods of extracting, facilitating and analysing self-reports including linguistic conversation analysis are presented in detail. It is highlighted that prodromes, seizure triggers and reflex epileptic mechanisms can provide crucial information for diagnostics and therapy. Special issues considering seizure semiology in children are discussed in a separate section. Other sections are dedicated to the two most important issues of differential diagnosis: how to distinguish (1) focal from âgeneralizedâ epilepsies, particularly when focal seizure phenomena appear in a bilateral epilepsy; and (2) epileptic from a series of non-epileptic events
Towards diagnostic conversational profiles of patients presenting with dementia or functional memory disorders to memory clinics
Objective: This study explores whether the profile of patients' interactional behaviour in memory clinic conversations with a doctor can contribute to the clinical differentiation between functional memory disorders (FMD) and memory problems related to neurodegenerative diseases.
Methods: Conversation Analysis of video recordings of neurologists' interactions with patients attending a specialist memory clinic. "Gold standard" diagnoses were made independently of CA findings by a multi-disciplinary team based on clinical assessment, neuropsychological testing and brain imaging.
Results: Two discrete conversational profiles for patients with memory complaints emerged, including (i) who attends the clinic (i.e., whether or not patients are accompanied), and (ii) patients' responses to neurologists' questions about memory problems, such as difficulties with compound questions and providing specific and elaborated examples and frequent "I don't know" responses.
Conclusion: Specific communicative difficulties are characteristic of the interaction patterns of patients with a neurodegenerative pathology. Those difficulties are manifest in memory clinic interactions with neurologists, thereby helping to differentiate patients with dementia from those with FMD. Practical implications: Our findings demonstrate that conversational profiles based on patients' contributions to memory clinic encounters have diagnostic potential to assist the screening and referral process from primary care, and the diagnostic service in secondary care
Psychogenic non-epileptic seizures (PNES) in the context of concurrent epilepsy â making the right diagnosis
Epilepsy is a risk factor for the development of psychogenic non-epileptic seizures (PNES) and comorbid epilepsy is recognized as a comorbidity in about 10â30% of patients with PNES. The combination of epileptic and nonepileptic seizures poses a particular diagnostic challenge. In patients with epilepsy, additional PNES may be suspected on the basis of their typical semiology. The possibility of additional PNES should also be considered if seizures fail to respond to antiepileptic drug treatment, in patients with frequent emergency admissions with seizures and in those who develop new types of seizures. The description of semiological details by patients and witnesses can suggest additional PNES. Home video recordings can support an initial diagnosis, however, especially in patients with mixed seizure disorders it is advisable to seek further diagnostic confirmation by capturing all habitual seizure types with video-EEG. The clinical features of PNES associated with epilepsy are similar to those in isolated PNES disorders and include longer duration, fluctuating course, asynchronous movements, pelvic thrusting, side-to-side head or body movement, persistently closed eyes and mouth, ictal crying, recall of ictal experiences and absence of postictal confusion. PNES can also present as syncope-like episodes with unresponsiveness and reduced muscle tone. There is no unique epileptological or brain pathology profile putting patients with epilepsy at risk of additional PNES. However, patients with epilepsy and PNES typically have lower educational achievements and higher levels of psychiatric comorbidities than patients with epilepsy alone. Psychological trauma, including sexual abuse, appears to be a less relevant aetiological factor in patients with mixed seizure disorders than those with isolated PNES, and the gender imbalance (i.e. the greater prevalence in women) is less marked in patients with PNES and additional epilepsy than those with PNES alone. PNES sometimes develop after epilepsy surgery. A diagnosis of âknown epilepsyâ should never be accepted without (at least brief) critical review. This narrative review summarises clinical, electrophysiological and historical features that can help identify patients with epilepsy and additional PNES
The hyperon-nucleon interaction: conventional versus effective field theory approach
Hyperon-nucleon interactions are presented that are derived either in the
conventional meson-exchange picture or within leading order chiral effective
field theory. The chiral potential consists of one-pseudoscalar-meson exchanges
and non-derivative four-baryon contact terms. With regard to meson-exchange
hyperon-nucleon models we focus on the new potential of the Juelich group,
whose most salient feature is that the contributions in the scalar--isoscalar
(\sigma) and vector--isovector (\rho) exchange channels are constrained by a
microscopic model of correlated \pi\pi and KKbar exchange.Comment: 28 pages, 8 figures, submitted to Lecture Notes in Physic
Pion-Lambda-Sigma Coupling Extracted from Hyperonic Atoms
The latest measurements of the atomic level width in Sigma-hyperonic Pb atom
offer the most accurate datum in the region of low-energy Sigma-hyperon
physics. Atomic widths are due to the conversion of Sigma-nucleon into
Lambda-nucleon. In high angular momentum states this conversion is dominated by
the one-pion exchange. A joint analysis of the data of the scattering of
negative-Sigma on proton converting into a Lambda and a neutron and of the
atomic widths allows to extract a pseudovector pion-hyperon-Sigma coupling
constant of 0.048 with a statistical error of +-0.005 and a systematic one of
+-0.004. This corresponds to a pseudoscalar coupling constant of 13.3 with a
statistical uncertainty of 1.4 and a systematic one of 1.1.Comment: 12 pages, 1 figure, Use of Revtex.st
On the and f(1420) Couplings to the Nucleon
We consider neutral pseudoscalar, , and axial vector, ,
mesons in the OZI-rule-respecting flavor basis, , and suggest a scenario for their
coupling to the nucleon. Within this framework, the non--strange parts of the
and f couplings are modeled by means of triangular ,
and vertices, while the strange ones partly proceed
via Goldberger-Treiman relations, which have been concluded solely on the
grounds of current universality. The suggested model explains the observed
suppression of the coupling with respect to the constituent quark
model expectations, and predicts the coupling of to the nucleon.Comment: appears in Int. J. Mod. Phys. A (in press
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