© 2016 Elsevier LtdJumping spiders are famous for their visually driven behaviors [1]. Here, however, we present behavioral and neurophysiological evidence that these animals also perceive and respond to airborne acoustic stimuli, even when the distance between the animal and the sound source is relatively large and with stimulus amplitudes at the position of the spider of ∼65 dB sound pressure level. Behavioral experiments with the jumping spider Phidippus audax reveal that these animals respond to low-frequency sounds by freezing—a common (...) anti-predatory behavior characteristic of an acoustic startle response. Neurophysiological recordings from auditory-sensitive neural units in the brains of these jumping spiders showed responses to low-frequency tones —recordings that also represent the first record of acoustically responsive neural units in the jumping spider brain. Responses persisted even when the distances between spider and stimulus source exceeded 3 m and under anechoic conditions. Thus, these spiders appear able to detect airborne sound at distances in the acoustic far-field region, beyond the near-field range often thought to bound acoustic perception in arthropods that lack tympanic ears [2]. Furthermore, direct mechanical stimulation of hairs on the patella of the foreleg was sufficient to generate responses in neural units that also responded to airborne acoustic stimuli—evidence that these hairs likely play a role in the detection of acoustic cues. We suggest that these auditory responses enable the detection of predators and facilitate an acoustic startle response. Video. (shrink)

-/- Continuous first-order logic has found interest among model theorists who wish to extend the classical analysis of “algebraic” structures (such as fields, group, and graphs) to various natural classes of complete metric structures (such as probability algebras, Hilbert spaces, and Banach spaces). With research in continuous first-order logic preoccupied with studying the model theory of this framework, we find a natural question calls for attention. Is there an interesting set of axioms yielding a completeness result? -/- The primary purpose (...) of this article is to show that a certain, interesting set of axioms does indeed yield a completeness result for continuous first-order logic. In particular, we show that in continuous first-order logic a set of formulae is (completely) satisfiable if (and only if) it is consistent. From this result it follows that continuous first-order logic also satisfies an approximated form of strong completeness, whereby Σ⊧φ (if and) only if Σ⊢φ ∸2−n for all n < ω. This approximated form of strong completeness asserts that if Σ⊧φ, then proofs from Σ, being finite, can provide arbitrarily better approximations of the truth of φ. -/- Additionally, we consider a different kind of question traditionally arising in model theory—that of decidability. When is the set of all consequences of a theory (in a countable, recursive language) recursive? Say that a complete theory T is decidable if for every sentence φ, the value φ T is a recursive real, and moreover, uniformly computable from φ. If T is incomplete, we say it is decidable if for every sentence φ the real number φ T o is uniformly recursive from φ, where φ T o is the maximal value of φ consistent with T. As in classical first-order logic, it follows from the completeness theorem of continuous first-order logic that if a complete theory admits a recursive (or even recursively enumerable) axiomatization then it is decidable. (shrink)

Explores intellectual and philosophical evolution of German philosopher Martin Heidegger, focusing on period after World War II. Analyzes how Heidegger s ideas, particularly his notion of being, influenced and were influenced by postwar context, including confrontation with Nazism and emergence of new philosophical currents. Argues that Heidegger s work offers relevant insights for contemporary philosophical debates and calls for a critical dialogue with his legacy. Discusses Heidegger s philosophy in the context of French and German philosophical schools, highlighting relevance of (...) his ideas and impact they had on contemporary philosophy. (shrink)

Molla Halil’e göre insanların bu dünyada yaptıkları iyiliklere karşılık Yüce Allah onları ahirette lütfuyla nimetlendirecek ve Cennetine koyacaktır. Bu, Allah’ın insanlara bir va‘didir. Allah va‘dinden asla dönmez. Çünkü Allah’ın va‘dinden dönmesi, O’nun hakkında bir eksiklik sayılır. Ancak bu durum O’nun için vucûbiyet ifade etmez. Vucubiyet kavramı çeşitli anlamlarda kullanıldığı için anlam kargaşasına yol açabilir. Buna sebebiyet vermemek için kelamda özellikle de bu makalede “zorunluluk” anlamına kullanılacak olup bazen gereklilik anlamı da ihtiva edebilir. Allah, kötülük yapanları ise adaletiyle cezalandıracaktır. Bu da (...) Allah’ın va‘îdi olup, va‘îdi’nden dönebilir. Bu, O’nun hakkında bir noksanlığa sebebiyet vermez. Çünkü cezalandırmaktan vazgeçmesi Allah’ın merhametinin ve lütfunun bir sonucudur. Bununla birlikte ne va‘d ve ne de va‘îd Allah’a vacip değildir. Molla Halil’e göre, büyük günah insanı imandan çıkarmaz. Mu‘tezile’ye göre büyük günah işleyen kimse dünyada ne mümin olur ne de kâfir ikisinin arasında bir yerde durur. Buna da fasıklık denir. Haricîlere göre ise, ister büyük, isterse küçük olsun, her türlü günah sahibini iman dairesinden çıkarır ve küfür dairesine dahil eder. Molla Halil’e göre, ahiret hayatı ruh ve cesetle birlikte olacaktır. Bu üm-metin günahkârlarına peygamberler, şehitler ve salih kimseler şefaat edecek-tir. Mu‘tezile‘ye göre şefaat sadece iyilerin derecesinin yükselmesi içindir. Günahkârlar için şefaat olmayacaktır. Günahkâr müminler Cehenneme girseler de ebedi kalmayacaklar. Kâfirlerin azapları ise devamlı olacak ve bunlar ebedi olarak Cehennemde kalacaklardır. Biz bu makalede önce sevap ve İkâb kelimelerinin lügat ve ıstılah anlamları üzerinde duracak, sonra bu bağlamda ayet ve hadislerde verilen bilgileri ve bunların açıklamalarını ele alacağız. Daha sonra Molla Halil’in bu konulara dair görüşlerini sunmaya çalışacağız. Onun sevap ve İkâb ile ilgili tanımlarını, bunların sonuçlarına dair yaşanacakları ve varılacak yerleri ele alan yaklaşımlarını sunmaya çalışacağız. Burada farklı görüşlere sahip olmaları nedeniyle çoğunlukla Mu‘tezile’nin ve az da olsa Haricilerin görüşlerine de mukayese oluşturması için değineceğiz. Burada sadece Molla Halil’in görüşlerini değil, onun içinden geldiği Ehli Sünnetin görüşlerini, sünni kaynakları temel alarak aktarmaya çalışacağız. (shrink)

Decision-making capacityDecision-making capacity for pediatric patients can be difficult to determine and is influenced by a myriad of developmental considerations. This chapter begins with a discussion concerning the nature of decision-makingDecision-making and what constitutes competency. The “rule of sevensRule of sevens” frameworkFramework is then used to explicate pertinent developmental milestonesMilestones for children, dividing pediatric developmentDevelopment into 0–7, 7–14, and 14+ years of age. In particular, the authors highlight the most important cognitiveCognitive, socialSocial, andSocial emotionalemotionalEmotional considerations in each of these periods (...) and how they pertain to a child’s ability to make important medical decisions. (shrink)

Using mobile health research as an extended example, this article provides an overview of when the Common Rule “applies” to a variety of activities, what might be meant when one says that the Common Rule does or does not “apply,” the extent to which these different meanings of “apply” matter, and, when the Common Rule does apply, how it applies.

The article traces the forty-year history of the establishment of the Bioethics training course at the Volgograd State Medical University, which turns 85 this year. It is told about those who played a major role in the development of bioethics as a training course, what difficulties and successes were along this path. The logic of the institutionalization of bioethics through the creation of ethical examination procedures is traced. Actual problems of bioethics, as well as ongoing bioethical activities are not covered (...) and are not called, since the materials of the anniversary issue of the journal are devoted to them. (shrink)

Problem reports result from several misunderstandings about the nature and functions of phenomenal consciousness. I discuss some philosophical and scientific correctives that, taken together, can make the hard problem seem less hard.

Contributed articles on Jacques Derrida, French philosopher, and his theories of deconstruction and postmoderinsm; includes articles on his perpectives on literature and philosophy.

Aproximación al pensamiento de Rodolfo Kusch -- Canto e identidad en el Martín Fierro según Carlos Astrada y Rodolfo Kusch -- Donde el barro se subleva -- La rehabilitación del saber seminal como camino hacia una mística popular -- Kusch y el impulso social de nuestra época -- La barbarización de la civilización, una grieta de antaño -- ¿De dónde pensarnos?

CHAPTER I Introduction The history of mankind can boast not only of its times of fame and glory but also of quieter times with a different kind of heroism. ...

The present study investigates the relations between L2-English proficiency and L1-Turkish lexical property evaluations. We asked whether L2 proficiency affects lexical properties, including imageability and concreteness ratings of 600 Turkish words selected from the Word Frequency Dictionary of Written Turkish. Seventy-two participants provided ratings of concreteness and imageability for 600 words on a 7-point scale. In order to assess their L2 proficiency, we administered Peabody Picture Vocabulary Test-IV. We divided categories into two subcategories as high and low for the frequency, (...) concreteness, imageability, and age of acquisition. The relationship between these subcategories and imageability-concreteness was examined by mixed effects linear regression analyses. We found that L2 proficiency and imageability ratings were positively correlated and specifically, this positive association was evident for low-frequency words and later acquired words. Results are in line with the interaction of bilingual representation under the dual-coding theory which suggests that bilinguals develop an interconnected imaginal representation for two languages as opposed to separate verbal representations. As L2 proficiency increased, the imageability also increased. These findings have implications for literature investigating the relationship between L2 proficiency and linguistic outcomes. Additionally, findings point to the importance of considering the L2 proficiency of participants when lexical tasks that involve cue words or word lists are used. (shrink)

Historical study of Islam and science including hadith, theology and Islamic philosophy etc.

The author recounts major personal and moral tensions that arose during an 11-month period living in Ghana and shares how she has since learned to reconcile those tensions.

ʻAyyānī, Yaḥyá ibn Ḥumaydān, ca. 12th century; Muslim scholars; Yemen; views on Islamic philosophy.