In the ḥadīth sources it is being conveyed that the companions (ṣaḥāba) refrained from asking questions to the Prophet. This situation is generally associated with the verse of sūrat al-Māʾida 5:101. An-Navvās b. Samʿān (d. 50/670), Abū Umāma al-Bāhilī (d. 86/705) and Anas b. Mālik (d. 93/711-12) are among the companions who consider this situation as the ban on the asking questions. The concern that asking questions may cause additional obligations that were not presumed to be obligatory also attracts attention (...) in these records. Keeping all numerous questions addressed to the Prophet in mind we may ask if there is a Prophetic prohibition on asking questions. We will seek an answer to this question, which constitutes the main axis of this article, especially in the framework of the narrations mentioned among the reasons of the al-Māʾida 101. We will evaluate the information concerned in their historical context and internal coherence inductively. Our investigation differs in this respect from the investigations, which dealt with the disapproval of excessive and unnecessary questions. As a result of our research, we think that it is possible to talk about a ban on asking questions about religious issues in the last three years of the Medina period. We will first discuss the dating and nature of this ban, from which only Bedouin and visitors who come to Madina were excluded. Then, we especially will evaluate the theological consequences of answer of the Prophet, which mentioned in the same context, of whether the pilgrimage is religious duty for every year. In the last part of the article, the prohibition of asking questions will be discussed in the light of Hans-Georg Gadamer’s principle “Der hermeneutische Vorrang der Frage”, which deals with the effect of the questions on the direction and nature of the answer.Summary: It is reported in Qurʾān and Ḥadīth that the Prophet Muḥammad (PBUH) was asked a lot of questions and he responded based on the revealed knowledge or his own. He did not like the questions which remain outside of the daily religious life like the questions whether he is able to know the end of the world or to show miracle. There are some reports which covey that the Prophet frowned upon some questions because they could cause new assignments or lead to complicate the existing ones. The Companions like an-Nawwās b- Samʿān (d. 50/670), Abū Umāma al-Bāhilī (d. 86/705) and Anas b. Mālik (d. 93/711-12) have been describing this situation as the ban of asking of religious implications.This issue which companions formulated exactly as the ban of the asking questions was regarded in research until now just as the depreciation of the Prophet upon the unnecessary questions. In this interpretation the idea played a role that the ban of the asking may not conform to the religious pedagogic of the Prophet and the real existence of a lot of asked questions contradict that. Therefore the imperative “do not ask” in al-Māʾida 5:101 (O believers, do not ask about things which, if made known to you, may vex you) were interpreted not as the prohibition of the asking questions in real sense, but as just the depreciation of the unnecessary questions.We argue that it is possible to talk about a prohibition of the asking questions in real sense. We are of the view that the asking to religious matters was prohibited in the last years of the Medina period. In a time of Madina period when the fundamental principles of Islam emerged the questions of companions let the Prophet think that they may lead to additional religious obligations. Therefore the Prophet warned his companions in these words: “Do not ask me about the details of the things which I do not mention to you” and “Allāh Taʿālā has remained silent about some things, out of compassion for you, not forgetfulness so do not seek after them.”The imperative “do not ask” in al-Māʾida 5:101 has to been understood in the light of the Prophet’s advice as quoted above. According to the expressions of the companions reported in hadith collections, it is obvious that the imperative “do not ask” signifies not only “do not ask unnecessary questions”, but “do not ask questions related to theology matters in general”.Anas b. Mālik served the Prophet nine or ten years and was not criticised by the Prophet anytime. A companion like Anas cannot have refrained from the asking questions because they may be unnecessary. Anas interpreted “ do not ask” in al-Māʾida 5:101 in words: “We were forbidden in the Qurʾān that we ask the Prophet anything". Anas’s observation reveals that the companions considered the “do not ask” in al-Māʾida 5:101 as a general prohibition for the questions to religious issue.According to our research it seems this ban was promulgated in last three years of Medina Period, and Bedouin and visitors were excluded. Al-Nawwās b. Samʿān noticed that the ban of the asking questions was only for the residents in Medina: “I was in Medina one year. The reason why I did not stay in Medina was my wish to ask the Prophet a religious issue. So, whoever stayed in Medina was not permitted to ask the Prophet questions.” Abū Umāma al-Bāhilī interpreted the ban of the asking in al-Māʾida 5:101 as a general ban. He reported that the companions give a garment (burda) as gift to a Bedouin in order to let him ask the Prophet questions. The ban on asking questions in Medina was not related to unnecessary questions. It was indeed related to the questions that might have caused addition to already well-defined obligatory rulings in Islam. Accordingly, the questions became unnecessary because they were asked in the time of revelation. With the ban of the asking the Prophet questions accentuated that God and his Messenger are aware what necessary and what was not. It means that God can intervene if it is necessary. For that they do not need ask the Prophet. Aṭ-Ṭabarī, al-Qurṭubī, en-Nawawī, Ibn RaJab el-Ḥanbalī and Ibn Ḥajar al-ʿAsqalānī are the scholars who interpreted the ban of asking in this general sense.We especially will evaluate the theological consequences of the Prophet’s response, as reported in the sources: “ If I said yes, the pilgrimage will be a religious duty for every year.” Here one may not misconstrue that the Prophet could determine the religious obligations arbitrarily. He meant that the believers have to practice only that which were revealed to them. The Prophet wanted to teach his followers the principle that became essential rule of Islamic jurisprudence: “What is not forbidden is permitted”.The Prophet did not perform tarāwīḥ-prayer in congregation in the month of fasting due to the apprehension that it might become obligatory for the believers and they would not be able to follow it. In this human reaction of the Prophet we see that the Prophet did not consider himself as the founder of the Islamic norms. In this context the following questions are important: Does God consider the human questions when making something obligatory? Is God influenceable in terms of His orders? Ibn Ḥajar observes: The scholars of Ahl al-Sunnah accept the causality in terms of the Islamic norms. Accordingly something can become a religious norm because the humans asked about that. But God’s decision does not depend on the humans. God can consider human questions, if He so wills. (shrink)

Veut montrer en quoi l'étude du souci de soi de Foucault, du souci en soi de Heidegger, du souci d'autrui d'Arendt, s'en est suivi de la perte de vue du principe de sollicitude, et de la mise en valeur et du besoin d'une éthique réparatrice. Il s'agit d'orienter le souci vers la sollicitude.

Để xem bóng đá và phát sóng video trực tiếp tốc độ cao, Xoilac là trang web lý tưởng. Đặc biệt, Xoilac không có bất cứ quảng cáo nào, vì vậy người xem vẫn thoải mái thưởng thức trận bóng đá mà không lo bị phân tâm vì bất cứ vấn đề gì. Ngoài ra, Xoilac có đội ngũ dày dặn chuyên môn, luôn đưa ra những nhận định chuẩn xác cho từng trận đấu bóng đá. Với đồ hoạ sinh (...) động, âm thanh lôi cuốn và sống động, Xoilac sẽ lưu lại dấu ấn sâu đậm trong tâm trí người xem bóng đá. (shrink)

Two types of truth table task are used to examine people's mental representation of conditionals. In two within-participants experiments, participants either receive the same task-type twice (Experiment 1) or are presented successively with both a possibilities task and a truth task (Experiment 2). Experiment 3 examines how people interpret the three-option possibilities task and whether they have a clear understanding of it. The present study aims to examine, for both task-types, how participants' cognitive ability relates to the classification of the (...) truth table cases as irrelevant, and their consistency in doing so. Looking at the answer patterns, participants' cognitive ability influences their classification of the truth table cases: A positive correlation exists between cognitive ability and the number of false-antecedent cases classified as ?irrelevant?, both in the possibilities task and the truth task. This favours a suppositional representation of conditionals. (shrink)

In most Western university studies, Greek philosophy is considered the most ancient kind of wisdom, but the Zoroastrian way of life can be traced back to the second millennium BC. The Gathas, hymns or songs attributed to Zarathustra, hold an existential and practical philosophy avant la lettre. It is based on mental exercises and on rituals that have survived thanks to the Zoroastrian religious communities. Not only does the Persian thinker unveil a mental wisdom for us; he also introduces us (...) to an ecological concern and a social practice. There is a cosmopolite dimension to Zarathustra's proto-philosophy that we can all apply in a personal way. (shrink)

L'étude d'Ann Van Sevenant se fonde sur l'un des textes les plus anciens de l'humanité, appelés les Gothas. Ces chants, attribués à Zarathushtra Spitama, sont à l'origine de la religion zoroastrienne, qui a eu une influence considérable sur les trois monothéismes et qui est encore pratiquée aujourd'hui par 250 000 personnes dans le monde. Mais il y a aussi une dimension existentielle dans la pensée de Zarathoustra dont les grands philosophes orientaux et occidentaux se sont inspirés tout au long de (...) l'histoire, entre autres, Pythagore, Héraclite, Platon, Aristote, Plotin, Mani, Augustin, Avicenne,Thomas d'Aquin, Pléthon, Ficino, Spinoza, Hume,Voltaire, Kant, Hegel et Nietzsche. Cet ouvrage propose une nouvelle approche de la philosophie à partir de Zarathoustra."--Page 4 of cover. (shrink)

The concept of "the mediate" — a central notion in the philosophy of Aristotle and Hegel — is the starting point in this article on touching. It reveals that touching is less immediate than our philosophical tradition seems to admit. That is at least the position Derrida defends in a recent book in which he focusses on the priority of touching . Together with the study of the paradox that Derrida discovers in Husserl's text on the hierarchy of the senses, (...) it is Derrida's underlining of the priority of touching itself that is here being questioned. One wonders if the notion haptophilia, instead of haptocentrism, would not have been more accurate. Moreover, if Derrida's argument in general sensitizes for the less immediate aspects of the philosophical text and context, it is the more mediate dimension of touching that is actually being stressed. And since mediate aspects can never be addressed directly and explicitly, the critique of haptocentrism appears to be a matter of drawing attention to the mediate in an indirect way. In other words, the love for the mediate is itself expressed in an indirect and mediate way. (shrink)

There is ample evidence that in classical truth table task experiments false antecedents are judged as ?irrelevant?. Instead of interpreting this in support of a suppositional representation of conditionals, Schroyens (2010a, 2010b) attributes it to the induction problem: the impossibility of establishing the truth of a universal claim on the basis of a single case. In the first experiment a truth table task with four options is administered and the correlation with intelligence is inspected. It is observed that ?undetermined? is (...) chosen in one third of the judgements and ?irrelevant? in another third. A positive correlation is revealed between intelligence and the number of ?irrelevant? and ?undetermined? judgements. The data do not exclude that a part of the ?irrelevant? judgements in classical truth table task experiments might be caused by the induction problem. In the second experiment participants are presented with a simplified four-option truth table task and asked for a justification of their judgements. These justifications show the induction problem is not the reason for choosing the ?irrelevant? or ?undetermined? option, which is supportive for a suppositional representation of conditionals. (shrink)

Paradise is among the topics frequently mentioned in the verses and hadiths. Islam is also among the greatest rewards to be given to believers who perform righteous deeds in Paradise in the hereafter. However, this study also examined the influence of the elements and general structure of the Paradise in the Islamic gardens, not this aspect. The Islamic garden has a structure consisting of hard floors, walking paths, geometric water channels, greenery and surrounded by deaf walls. These characteristic features that (...) the Islamic garden often has are the main subjects of our study. The other aspect of our research is how and to what degree the Paradise phenomenon mentioned in the verses and hadiths is effective in these features that occur in the Garden of Islam. In the article, the characteristic features of the Garden of Islam and the elements of heaven in the verses and Hadiths are compared. Thus, similar and different aspects were put forward and discussed. In this context, more structural elements, plant materials, water use and Cahr-ı bond system were focused on. Structural elements include roads, pavilions, canopy, gazebos and deaf walls. In the Islamic gardens, it is seen that a pool is positioned in the center and that the water flows through the entire garden on the occasion of the canals and finally merges into this central pool. Usually this central pool has a geometric shape. The Cahr-ı bond system, although some researchers state that it existed before Islam, has found spirit with Islam. As a result of this, it is understood that Heaven is interpreted by people as human, and as a result it has an important influence on the way of structural, vegetative and water use in the Islamic gardens. (shrink)

Two types of truth table tasks are used investigating mental representations of conditionals: a possibilities-based and a truth-based one. In possibilities tasks, participants indicate whether a situation is possible or impossible according to the conditional rule. In truth tasks participants evaluate whether a situation makes the rule true or false, or is irrelevant with respect to the truth of the rule. Comparing the two-option version of the possibilities task with the truth task in Experiment 1, the possibilities task yields logical (...) answer patterns whereas the truth task yields defective patterns. Adding the irrelevant option to the possibilities task in Experiment 2 leads to a considerable amount of defective patterns in the possibilities task, but still to more logical patterns in the possibilities task than in the truth task. Experiment 3 shows that directionality matters since rule-to-situation tasks yield more logical answer patterns than do situation-to-rule tasks. We conclude that both task types are not comparable as such since wording, number of options and directionality influence the results. (shrink)

The is the Editorial of the 2015 JPBMB Special Issue on Integral Biomathics: Life Sciences, Mathematics and Phenomenological Philosophy.

Contemporary international law separates the international justice of war from the domestic justice of society, but empirically, there is a correlation between democratic governance and military effectiveness, which could have a number of causes. A contemporary reconstruction from _The Seven Military Classics_ of Chinese military philosophy offers potential lessons for how domestic virtues may yield military and geopolitical victory. This chapter reconstructs arguments from the seven treatises into a collective an amalgamated conception of “good governance” that weaves together (...) military strategy and virtue ethics and maintains that good governance at home actually wins wars abroad. A reconstructed classical Chinese conception of “good governance” presents theoretical and ethical challenges, but also offers viable justicial content for contemporary jus ad bellum considerations beyond sovereign self-defense or human rights. It presents a way of instantiating the sprawling conception of human rights that falls short in contemporary discourse. (shrink)

There is a controversy concerning whether to give Section 1.4.1 of Hume’s Treatise of Human Nature a skeptical or naturalistic reading. I divide the overall interpretation of this section into seven smaller interpretative theses, none of which alone determine either a skeptical or naturalistic reading, but which together better support what has been called the naturalistic interpretation.

Drawing on philosophy, psychology, sociology, politics, biology, and theology, Stevenson introduces readers to the endlessly fascinating subject of human nature. He outlines background theories of the universe, basic approaches to human nature, diagnoses of what is wrong with humankind and prescriptions for putting it right while offering clear, critical analyses of the ideas of Plato, Christianity, Karl Marx, Freud, Sartre, Skinner, and Lorenz. Including completely revised and updated bibliographies, the second edition also provides a new interdisciplinary final chapter suggesting areas (...) of further inquiry. (shrink)

This paper seeks to provide an approach for achieving a more socially and environmentally sustainable life by reframing the rules of engagement with the planet and with each other by setting minimum standards on essential criteria i.e., by defining “off-limits”zones for corporate action. For a more humanistic and socially just way of living life that would sustain the planet, a set of moral boundaries that cannot be breached are conceived. We offer a set of possible normative leverage points that must (...) not be violated by business in the long-term. Our paper takes a forward-looking view beyond the current generational targets for sustainability. We operate on the premise that sustainability involves preserving the future generations of the planet in both an environmental and human sense. The Moral Boundaries for Business framework embraces the Seventh Generation Principle. The moral boundaries we offer in this paper, if followed, are meant to have positive implications for humanity and the planet in the next seven generations. (shrink)

Beloved author of, among many other books, the bestsellers How to Argue and Win Every Time and The Making of a Country Lawyer , Gerry Spence distills a lifetime of wisdom and observation about how we live, and how we ought to live in Seven Simple Steps to Personal Freedom . Here, in seven chapters, he delivers messages that inspire us first to recognize our servitude-to money, possessions, corporations, the status quo, and our own fears-and then shows us (...) how to begin the self-defining process toward liberation. Seven Simple Steps to Personal Freedom is a powerfully affirming, large-hearted, and life-changing book that asks us all to take the greatest risk for the greatest reward-our own freedom. (shrink)

Prologue, invitation to thinking about God In the Hebrew Bible? -- Part I, questions about God? -- Why does God in the Bible have a body? -- What do God's body parts in the Bible mean? -- Why is God angry in the Bible? -- Does God in the Bible have gender or sexuality? -- Part II, questions about God in the world? -- What can creation tell us about God? -- Who-or what-is the Satan? -- Why do people suffer (...) according to the Hebrew Bible? -- Epilogue, God in the Bible and beyond. (shrink)

Stories and legends in which animals teach ethical behavior from a Jewish perspective.

In this paper I will argue that a profile of the pseudo-sciences can be gained from the scientific pretensions of the pseudo-scientist. These pretensions provide two yardsticks which together take care of the charge of scientific prejudice that any suggested demarcation of pseudo-science has to face. To demonstrate that my analysis has teeth I will apply it to Freud and modern-day Bach-kabbalists. Against Laudan I will argue that the problem of demarcation is not a pseudo-problem, though the discussion will bear (...) out that Laudan's replacement question, namely the question whether someone's theory is well-confirmed, is not, as Lugg claimed, independent of the question as to whether that person is a pseudo-scientist. I further argue that my prototype pseudo-scientists do not have the shortcomings highlighted in Thagard's recent analysis of pseudo-science. (shrink)

Godfrey-Smith ( 2001 ) has distinguished three types of adaptationism. This article builds on his analysis, and revises it in places, by distinguishing seven varieties of adaptationism. This taxonomy allows us to clarify what is at stake in debates over adaptationism, and it also helps to cement the importance of Gould and Lewontin’s ‘Spandrels’ essay. Some adaptationists have suggested that their essay does not offer any coherent alternative to the adaptationist programme: it consists only in an exhortation to test (...) adaptationist hypotheses more thoroughly than was usual in the 1970s. Here it is argued that the ‘Spandrels’ paper points towards a genuinely non-adaptationist methodology implicit in much evolutionary developmental biology. This conclusion helps to expose the links between older debates over adaptationism and more recent questions about the property of evolvability. (shrink)

Inclusion of the humanities in undergraduate medicine curricula remains controversial. Skeptics have placed the burden of proof of effectiveness upon the shoulders of advocates, but this may lead to pursuing measurement of the immeasurable, deflecting attention away from the more pressing task of defining what we mean by the humanities in medicine. While humanities input can offer a fundamental critical counterweight to a potentially reductive biomedical science education, a new wave of thinking suggests that the kinds of arts and humanities (...) currently used in medical education are neither radical nor critical enough to have a deep effect on students’ learning and may need to be reformulated. The humanities can certainly educate for tolerance of ambiguity as a basis to learning democratic habits for contemporary team-based clinical work. William Empson’s ‘seven types of ambiguity’ model for analyzing poetry is transposed to medical education to: (a) formulate seven values proffered by the humanities for improving medical education; (b) offer seven ways of measuring impact of medical humanities provision, thereby reducing ambiguity; and (c) --as a counterweight to (b) – celebrate seven types of ambiguity in contemporary medical humanities that critically reconsider issues of proof of impact. (shrink)

The author submits that Popper's social philosophy rests on seven pillars: rationality (both conceptual and practical), individualism (ontological and methodological), libertarianism, the nonexistence of historical laws, negative utilitarianism ("Do no harm"), piecemeal social engineering, and a view on social order. The first six pillars are judged to be weak, and the seventh broken. In short, it is argued that Popper did not build a comprehensive, profound, or even consistent system of social philosophy on a par with his work in (...) epistemology. Still, he did make some important contributions to the field, such as unveiling the philosophical roots of totalitarianism and defending social engineering against both revolutionists and conservatives. (shrink)

In this entry, DeYoung defines the seven deadly sins, also known as the capital vices, as a schema for understanding and analyzing sin for Christians interested in self-examination, confession, preaching, and spiritual formation. DeYoung carefully looks at the difference between 'sin' and 'vice' and goes back to the capital vices of the Desert Fathers to draw out the tradition. She also looks at Aquinas's analysis to help articulate how the Christian tradition has used the vices.

v. 1. Theg bźin mdzod -- v. 2. Chos dbyiṅs mdzod -- v. 3-4. Theg mchog mdzod -- v. 5. Gnas lugs mdzod ; Tshig don mdzod -- v. 6. Man ṅag mdzod ; Grub mthaʾ mdzod.

Roman Frigg and James Nguyen present a detailed statement and defense of the fiction view of scientific models, according to which they are akin to the characters and places of literary fiction. They argue that while some of the criticisms this view has attracted raise legitimate points, others are myths. In this chapter, they first identify and then rebut the following seven myths: that the fiction view regards products of science as falsehoods; that the fiction view holds that models (...) are data-free; that the fiction view is antithetical to representation; that the fiction view trivializes epistemology; that the fiction view cannot account for the use of mathematics in the modeling; that the fiction view misconstrues the function of models in the scientific process; and that the fiction view stands on the wrong side of politics. As a result, they conclude that the fiction view of models, suitably understood, remains a viable position. (shrink)

The principle of self-organization has acquired a fundamental significance in the newly emerging field of computational philosophy. Self-organizing systems have been described in various domains in science and philosophy including physics, neuroscience, biology and medicine, ecology, and sociology. While system architecture and their general purpose may depend on domain-specific concepts and definitions, there are (at least) seven key properties of self-organization clearly identified in brain systems: 1) modular connectivity, 2) unsupervised learning, 3) adaptive ability, 4) functional resiliency, 5) functional (...) plasticity, 6) from-local-to-global functional organization, and 7) dynamic system growth. These are defined here in the light of insight from neurobiology, cognitive neuroscience and Adaptive Resonance Theory (ART), and physics to show that self-organization achieves stability and functional plasticity while minimizing structural system complexity. A specific example informed by empirical research is discussed to illustrate how modularity, adaptive learning, and dynamic network growth enable stable yet plastic somatosensory representation for human grip force control. Implications for the design of “strong” artificial intelligence in robotics are brought forward. (shrink)

Those who have read me, in particular those who have read “Paul de Man’s War,” know very well that I would have quite easily accepted a genuine critique, the expression of an argued disagreement with my reading of de Man, with my evaluation of these articles from 1940-42, and so on. After all, what I wrote on this subject was complicated enough, divided, tormented, most often hazarded as hypothesis, open enough to discussion, itself discussing itself enough in advance for me (...) to be able to welcome questions, suggestions, and objections. Provided this was done so as to demonstrate and not to intimidate or inflict wounds, to help the analysis progress and not to score points, to read and to reason and not to pronounce massive, magical, and immediately executor verdicts. Five of the six “responses” that I reread last night are written, as one used to say, with a pen dipped in venom. Less against the de Man of 1940-42, perhaps, then against me . Less against me, in truth, than against “Deconstruction” . How can the reader tell that these five “critical responses” are not “responses,” critical texts or discussions, but rather the documents of a blinded compulsion? First of all, the fact that they are all monolithic. They take into account none of the complications of which my text, this is the very least one can say, is not at all sparing. They never seek to measure the possibility, the degree, or the form, as always happens in an honest discussion, of a partial agreement on this or that point. No, everything is rejected as a block; everything is a block and a block of hatred. Even when, here or there, someone makes a show of being moved by my sadness or my friendship for de Man, it is in order to get the better of me and suggest that I am inspired only by friendship, which will appear ridiculous to all those who have read me. Inspired by friendship means for those people misled by friendship. How foreign this experience must be to them! Jacques Derrida is Directeur d’Études at the École des Hautes Études en Sciences Sociales as well as professor at the University of California, Irvine, and visiting professor at the Graduate School of the City University of New York. His most recent publication in English is the collection Limited Inc , which includes a new afterword, “Toward an Ethic of Discussion.” Peggy Kamuf is professor of French at the University of Southern California. Her most recent book is Signature Pieces: On the Institution of Authorship . She has also contributed essays to Reading de Man Reading and Responses: On Paul de Man’s Wartime Journalism , and is currently editing A Derrida Reader. (shrink)

Sainsbury and Tye present a new theory, 'originalism', which provides natural, simple solutions to puzzles about thought that have troubled philosophers for centuries. They argue that concepts are to be individuated by their origin, rather than epistemically or semantically. Although thought is special, no special mystery attaches to its nature.

Most recent thinking about thevulnerability of research subjects uses a``subpopulation'' focus. So conceived, theproblem is to work out special standards forprisoners, pregnant women, the mentally ill,children, and similar groups. In contrast, an``analytical'' approach would identifycharacteristics that are criteria forvulnerability. Using these criteria, one couldsupport a judgment that certain individuals arevulnerable and identify needed accommodationsif they are to serve as research subjects.Seven such characteristics can be evident inchildren: they commonly lack the capacity tomake mature decisions; they are subject to theauthority (...) of others; they (and their parents)may be deferential in ways that can maskunderlying dissent; their rights and interestsmay be socially undervalued; they may haveacute medical conditions requiring immediatedecisions not consistent with informed consent;they may have serious medical conditions thatcannot be effectively treated; and they (andtheir parents) may lack important sociallydistributed goods. Each of thesevulnerabilities can call for special care inthe design and implementation of researchprotocols. (shrink)

Overwhelmingly, students desire the opportunity to earn extra credit because they want higher grades, and many professors offer extra credit be­cause they want to motivate students. In this paper, I define the purposes of both grading and extra credit and offer three traditional arguments for making extra credit assignments available. I follow with seven arguments against the use of extra credit that include unnecessary extra work, grade inflation, and ultimately paradox. I finish with an example of a case where (...) extra credit could be justified, although it relies on an important equivocation. Ultimately, I show that extra credit is neither a pedagogically sound nor a conceptually coherent grading practice, and I conclude that extra credit should not be part of the pedagogical toolbox. (shrink)

Much of cognitive psychology focuses on effects measured in tens of milliseconds while significant educational outcomes take tens of hours to achieve. The task of bridging this gap is analyzed in terms of Newell's (1990) bands of cognition—the Biological, Cognitive, Rational, and Social Bands. The 10 millisecond effects reside in his Biological Band while the significant learning outcomes reside in his Social Band. The paper assesses three theses: The Decomposition Thesis claims that learning occurring at the Social Band can be (...) reduced to learning occurring at lower bands. The Relevance Thesis claims that instructional outcomes at the Social Band can be improved by paying attention to cognition at the lower bands. The Modeling Thesis claims that cognitive modeling provides a basis for bridging between events on the small scale and desired outcomes on the large scale. The unit-task level, at the boundary of the Cognitive and Rational Bands, is useful for assessing these theses. There is good evidence for all three theses in efforts that bridge from the unit-task level to educational applications. While there is evidence for the Decomposition Thesis all the way down to the 10 millisecond level, more work needs to be done to establish the Relevance Thesis and particularly the Modeling Thesis at the lower levels. (shrink)

Classical physics is about real objects, like apples falling from trees, whose motion is governed by Newtonian laws. In standard quantum mechanics only the wave function or the results of measurements exist, and to answer the question of how the classical world can be part of the quantum world is a rather formidable task. However, this is not the case for Bohmian mechanics, which, like classical mechanics, is a theory about real objects. In Bohmian terms, the problem of the classical (...) limit becomes very simple: when do the Bohmian trajectories look Newtonian? (shrink)