With the rapid development of information technology, the electricity consumption of Internet Data Centers (IDCs) increases drastically, resulting in considerable carbon emissions that need to be reduced urgently. In addition to the introduction of Renewable Energy Sources (RES), the joint use of the spatial migration capacity of IDC workload and the temporal flexibility of the demand of Electric Vehicle Charging Stations (EVCSs) provides an important means to change the carbon footprint of the IDC. In this paper, a sustainability improvement strategy (...) for the IDC carbon emission reduction was developed by coordinating the spatial-temporal dispatch flexibilities of the IDC workload and the EVCS demand. Based on the Minkowski sum algorithm, a generalized flexible load model of the EVCSs, considering traffic flow and Road Impedance (RI) was formulated. The case studies show that the proposed method can effectively increase the renewable energy consumption, reduce the overall carbon emissions of multi-IDCs, reduce the energy cost of the DCO, and utilize the EV dispatching potential. Discussions are also provided on the relationship between workload processing time delay and the renewable energy consumption rate. (shrink)

Allelopathy is an important biological phenomenon in exotic plant invasions. Studies about this phenomenon can help us to understand how plant interactions influence plant colony and ecosystem functioning. Both alligator weed (Alternanthera philoxeroides, Ap) and crofton weed (Eupatorium adenophorum, Ea) are important destructive exotic species in China. Their allelopathic effects on native plant species are well documented. However, whether alligator weed and crofton weed antagonize each other regarding plant growth? There is largely unknown currently. Here we report that the leaf (...) extract from crofton weed possesses the negative effect on the growth of alligator weed. The results showed that root growth of alligator weed could be seriously inhibited by aqueous extract from crofton weed, exhibited as no root or a few roots if only. Consistent with the inhibition of root growth, we observed changes of physiological and biochemical parameters in treated alligator weed. The chlorophyll content, the root activity and the acetolactate synthase (ALS) activity were significantly decreased; while the rate of superoxide anion (O2-), the malondialdehyde (MDA) content, the peroxidase (POD) activity, and the shikimic acid content were remarkably increased in the treated alligator weed plants. These physiological analyzes suggested that the main allelopathic effects of crofton weed were mainly through affecting the integrity of cell membrane and the activity of the key enzymes. Further, these data also imply that one exotic species has the potential value to be used in bio-control of the other exotic species. (shrink)

Jerry Fodor and Ernest Lepore (1999/2002) frame the debate over meaning holism in terms of a distinction between meaning atomism and meaning anatomism. The former holds that the meaning of an expression E is determined by some relation between E and some extra-linguistic entity. The latter holds that the meaning of E is at least partly determined by some of E’s “inward” relations (IRs) with other expressions in the very language. They (1992) argue that meaning anatomism inevitably collapses into meaning (...) holism, which is the view that the meaning of E is determined by E’s IRs with every other expression in the very language because there is no principled distinction for the anatomist to divide the meaning-determining IRs from the non-meaning-determining ones. In response, the non-holistic anatomist urges that Fodor and Lepore’s no-principled-basis consideration is groundless because the lack of a generally accepted criterion for such a distinction does not undermine the viability of the distinction itself. While this point is well taken, I think that Fodor and Lepore are onto an important question here. That is, what does it make non-holistic anatomism distinctive from its holistic counterpart if without a principled basis for the distinction among IRs? I look into this question and give an alternative argument from Fodor and Lepore’s to suggest that non-holistic anatomism cannot bypass the no-principled-basis consideration. The non-holistic anatomist will need a principled distinction in kind between IRs to back her point. (shrink)

Little attention has been paid to the place attachment and homeland construction for refugees and their descendants in China. This study investigates the process by which the place attachment of Young Overseas Chinese Relatives is shaped in the context of resettlement sites. This qualitative research employed ethnographic fieldwork, and the author collected local literature and materials from February to December 2019 through participatory observation, in-depth interviews, and questionnaires. It is believed that the construction of a new homeland in the community, (...) the emotional experience of the Young in childhood, and the cultural logic of place attachment shape place attachment. The process by which place attachment is shaped is interwoven with homeland construction, which indicates that the living state and mentality of the Young are becoming increasingly stable. The Young developed different mentalities on the basis of traditional Confucian culture in responding to the socio-cultural environments. (shrink)

It has been long debated whether quantum mechanics is real or complex. Local experiments have been carried out confirming the complex nature of quantum mechanics in the standard formalism. Nevertheless, recent theoretical work demonstrated that in a closed universe, quantum mechanics is real. We discuss the philosophical implications of whether quantum mechanics is real or complex.

Slurs are derogatory words and they are used to derogate certain groups. Theories of slurs must explain why they are derogatory words, as well as other features like independence and descriptive ineffability. This paper proposes an illocutionary force indicator theory of slurs: they are derogatory terms because their use is to perform the illocutionary act of derogation, which is a declarative illocutionary act to enforce norms against the target. For instance, calling a Chinese person “chink” is an act of derogation (...) to enforce racist norms that license exclusion of the Chinese, deny their rights to dignity, etc. The contribution of this paper is twofold. First, it offers a more comprehensive explanation of the features of slurs than earlier speech act approaches. Second, it provides a theory that is immune to the problems faced by existing theories, such as wrong predictions of truth-conditions, explaining unacceptability to non-bigots, and explaining slurs against the dominant groups. (shrink)

This paper argues for the existence of a fourth positive generic value relation that can hold between two items beyond ‘better than’, ‘worse than’, and ‘equally good’: namely ‘on a par’.

What makes a choice hard? I discuss and criticize three common answers and then make a proposal of my own. Paradigmatic hard choices are not hard because of our ignorance, the incommensurability of values, or the incomparability of the alternatives. They are hard because the alternatives are on a par; they are comparable, but one is not better than the other, and yet nor are they equally good. So understood, hard choices open up a new way of thinking about what (...) it is to be a rational agent. (shrink)

This paper is the introduction to the volume. It gives an argumentative view of the philosophical landscape concerning incommensurability and incomparability. It argues that incomparability, not incommensurability, is the important phenomenon on which philosophers should be focusing and that the arguments for the existence of incomparability are so far not compelling.

Can quite different values be rationally weighed against one another? Can the value of one thing always be ranked as greater than, equal to, or less than the value of something else? If the answer to these questions is no, then in what areas do we find commensurability and comparability unavailable? And what are the implications for moral and legal decision making? This book struggles with these questions, and arrives at distinctly different answers.".

This paper proposes a way to understand transformative choices, choices that change ‘who you are.’ First, it distinguishes two broad models of transformative choice: 1) ‘event-based’ transformative choices in which some event—perhaps an experience—downstream from a choice transforms you, and 2) ‘choice-based’ transformative choices in which the choice itself—and not something downstream from the choice—transforms you. Transformative choices are of interest primarily because they purport to pose a challenge to standard approaches to rational choice. An examination of the event-based transformative (...) choices of L. A. Paul and Edna Ullman-Margalit, however, suggests that event-based transformative choices don’t raise any difficulties for standard approaches to rational choice. An account of choice-based transformative choices—and what it is to be transformed—is then proposed. Transformative choices so understood not only capture paradigmatic cases of transformative choice but also point the way to a different way of thinking about rational choice and agency. (shrink)

In virtue of what is something a reason for action? That is, what makes a consideration a reason to act? This is a metaphysical or meta-normative question about the grounding of reasons for action. The answer to the grounding question has been traditionally given in ‘pure’, univocal terms. This paper argues that there is good reason to understand the ground of practical normativity as a hybrid of traditional ‘pure’ views. The paper 1) surveys the three leading ‘pure’ answers to the (...) question of a normative ground, 2) examines one or two of the most difficult problems for each, proposing along the way a new objection to one, and 3) argues that a particular hybrid view about normative grounds –‘hybrid voluntarism’ – avoids each of the main problems faced by the three leading ‘pure’ views. (shrink)

This article explores the main similarities and differences between Derek Parfit’s notion of imprecise comparability and a related notion I have proposed of parity. I argue that the main difference between imprecise comparability and parity can be understood by reference to ‘the standard view’. The standard view claims that 1) differences between cardinally ranked items can always be measured by a scale of units of the relevant value, and 2) all rankings proceed in terms of the trichotomy of ‘better than’, (...) ‘worse than’, and ‘equally good’. Imprecise comparability, which can be understood in terms of the more familiar notions of cardinality and incommensurability, rejects only the first claim while parity rejects both claims of the standard view. -/- I then argue that insofar as those attracted to imprecise comparability assume that all rankings are trichotomous, as Parfit appears to, the view should be rejected. This is because imprecise equality is not a form of equality but is a sui generis ‘fourth’ basic way in which items can be ranked. We should, I argue, understand imprecise equality as parity, and imprecise comparability as entailing ‘tetrachotomy’ – that if two items are comparable, one must better than, worse than, equal to, or on a par with the other. Thus those attracted to the idea that cardinality can be imprecise should abandon trichotomy and accept parity and tetrachotomy instead. -/- Finally, I illustrate the difference between Parfit’s trichotomous notion of imprecise comparability and parity by examining how each notion might be employed in different solutions to the problem posed by the Repugnant Conclusion in population ethics. I suggest that parity provides the arguably more ecumenical solution to the problem. (shrink)

This paper investigates two puzzles in practical reason and proposes a solution to them. First, sometimes, when we are practically certain that neither of two alternatives is better than or as good as the other with respect to what matters in the choice between them, it nevertheless seems perfectly rational to continue to deliberate, and sometimes the result of that deliberation is a conclusion that one alternative is better, where there is no error in one’s previous judgment. Second, there are (...) striking differences between rational agents – some rational agents have most reason to pursue careers on Wall Street while others have most reason to take up a career in teaching, or scuba diving, or working for political causes. These differences aren’t plausibly explained by ‘passive’ facts about our psychology or their causal interaction with our environment; instead, these facts seem in some sense to ‘express who we are’. But what is this sense? These puzzles disappear if we adopt a novel view about the source of the normativity of reasons – some reasons are given to us and others are reasons in virtue of an act of will. We make certain considerations reasons through an act of will and thus sometimes make it true through an act of agency that we have most reason to do one thing rather than another. (shrink)

This paper begins with a response to Josh Gert’s challenge that ‘on a par with’ is not a sui generis fourth value relation beyond ‘better than’, ‘worse than’, and ‘equally good’. It then explores two further questions: can parity be modeled by an interval representation of value? And what should one rationally do when faced with items on a par? I argue that an interval representation of value is incompatible with the possibility that items are on a par (a mathematical (...) proof is given in the appendix). I also suggest that there are three senses of ‘rationally permissible’ which, once distinguished, show that parity does distinctive practical work that cannot be done by the usual trichotomy of relations or by incomparability. In this way, we have an additional argument for parity from the workings of practical reason. (shrink)

This introductory article describes the phenomena of incommensurability and incomparability, how they are related, and why they are important. Since incomparability is the more significant phenomenon, the paper takes that as its focus. It gives a detailed account of what incomparability is, investigates the relation between the incomparability of values and the incomparability of alternatives for choice, distinguishes incomparability from the related phenomena of parity, indeterminacy, and noncomparability, and, finally, defends a view about practical justification that vindicates the importance of (...) incomparability — assuming it exists — for practical reason. (shrink)

One of the most common judgments of normative life takes the following form: With respect to some things that matter, one item is better than the other, with respect to other things that matter, the other item is better, but all things considered – that is, taking into account all the things that matter – the one item is better than the other. In this paper, I explore how all-things-considered judgments are possible, assuming that they are. In particular, I examine (...) the question of how the different considerations relevant to an all-things-considered judgment come together in a way that gives each relevant consideration its proper due. I propose an answer which provides a unified account of all-things-considered judgments and highlights a deep connection between value and reason. My suggestion is that ‘all things considered’ is, in effect, a placeholder for a more comprehensive, sometimes nameless, value that includes the things considered as parts, and that this more comprehensive value determines how the things considered normatively relate. (shrink)

This paper presents an argument against the widespread view that ‘hard choices’ are hard because of the incomparability of the alternatives. The argument has two parts. First, I argue that any plausible theory of practical reason must be ‘comparativist’ in form, that is, it must hold that a comparative relation between the alternatives with respect to what matters in the choice determines a justified choice in that situation. If comparativist views of practical reason are correct, however, the incomparabilist view of (...) hard choices should be rejected. Incomparabilism about hard choices leads us to an implausible error theory about the phenomenology of hard choices, threatens an unattractive view of human agency, and leaves us in perplexity about what we are doing when we choose in hard choices. The second part of the argument explores the main competitor to comparativist views of practical reason, noncomparativist view, according tow which a choice is justified so long as it is not worse than any of the alternatives. This view is often assumed by rational choice theorists but has its best philosophical defense in work by Joseph Raz. On Raz’s view, incomparabilism about hard choices avoids the problems faced if comparativism is correct, but it faces different difficulties. I argue that Raz’s noncomparativist view mistakenly assimilates practical reason to more restricted normative domains such as the law. (shrink)

What sorts of consideration can be normative reasons for action? If we systematize the wide variety of considerations that can be cited as normative reasons, do we find that there is a single kind of consideration that can always be a reason? Desire-based theorists think that the fact that you want something or would want it under certain evaluatively neutral conditions can always be your normative reason for action. Value-based theorists, by contrast, think that what plays that role are evaluative (...) facts (or the facts that subvene them) about what you want, such as the fact that having it would be good in some way. This paper argues that value-based theorists are wrong; if we try to find a single kind of consideration that can always be normative reason, we find that sometimes our reason is the fact that we want something and not any corresponding evaluative fact. (shrink)

‘Normative powers’ are capacities to create normative reasons by our willing or say-so. They are significant, because if we have them and exercise them, then sometimes the reasons we have are ‘up to us’. But such powers seem mysterious. How can we, by willing, create reasons? In this paper, I examine whether normative powers can be adequately explained normatively, by appeal to norms of a practice, normative principles, human interests, or values. Can normative explanations of normative powers explain how an (...) exercise of the will can afford us special freedom in determining our reasons? I argue that normative approaches to answering this question prove to be inadequate. To vindicate the thought that normative powers can make our reasons ‘up to us’, we need an altogether different approach to understanding them, one that is located not in the normative but in the metaphysical. I end the paper by sketching a metaphysical explanation of normative powers. This metaphysical defence of normative powers provides a window into a different, more agent-centered way of thinking about rational agency. (shrink)

This encyclopedia entry urges what it takes to be correctives to common (mis)understandings concerning the phenomenon of incommensurability and incomparability and briefly outlines some of their philosophical upshots.

This chapter argues that there is a particular kind of ‘internal’ commitment typically made in the context of romantic love relationships that has striking meta-normative implications for how we understand the role of the will in practical normativity. Internal commitments cannot plausibly explain the reasons we have in committed relationships on the usual model—as triggering reasons that are already there, in the way that making a promise triggers a reason via a pre-existing norm of the form ‘If you make a (...) promise to x, then you have a reason to x’. Instead, internal commitments are that in virtue of which one has the special reasons of committed relationships; they are the grounds of such reasons. In this way, the will is a source of practical normativity. (shrink)

In this article, I identify and critically examine 3 dogmas of normativity that support a commonly accepted ‘Passivist View' of rational agency. I raise some questions about these dogmas, suggest what we should believe in their place, and moot an alternative ‘Activist View' of what it is to be a rational agent that grows out of rejection of the 3 dogmas. Underwriting the dogmas and the Passivist View, I suggest, is a deeply held but mistaken assumption that the normative domain (...) is fundamentally akin to the nonnormative domain. Once we allow that the normative may be fundamentally unlike the nonnormative in certain key ways, a shift in our thinking about what it is to be rational becomes possible. I end by considering some implications of this paradigm shift in rationality from the passive to the active for various applied matters. (shrink)

This paper reports on an ongoing ARC Discovery Project that is conducting design research into learning in collaborative virtual worlds (CVW).The paper will describe three design components of the project: (a) pedagogical design, (b)technical and graphics design, and (c) learning research design. The perspectives of each design team will be discussed and how the three teams worked together to produce the CVW. The development of productive failure learning activities for the CVW will be discussed and there will be an interactive (...) demonstration of the project's CVW. (shrink)

Conflicts between morality and prudence are often thought to pose a special problem because the normativity of moral considerations derives from a distinctively moral point of view, while the normativity of prudential considerations derives from a distinctively prudential point of view, and there is no way to ‘put together’ the two points of view. I argue that talk of points of view is a red herring, and that for any ‘prumoral’ conflict there is some or other more comprehensive value – (...) often nameless – that accounts for the relative normative weight of conflicting moral and prudential considerations. The rational resolution of conflict is possible only in virtue of a more comprehensive value that includes the conflicting moral and prudential considerations as parts. (shrink)

The feeling of being offended, as a moral emotion, plays a key role in issues such as slurs, the offense principle, ethics of humor, etc. However, no adequate theory of offense has been developed in the literature, and it remains unclear what questions such a theory should answer. This paper attempts to fill the gap by performing two tasks. The first task is to clarify and summarize the questions of offense into two kinds, the descriptive questions (e.g., what features differentiate (...) offense from similar moral states like anger?) and the normative questions (e.g., what are the conditions for taking offense to be apt?). The second task is to answer these questions by developing what I call ‘the violated norm theory of offense’. According to this theory, feeling offended entails that the norm one endorses is judged to be violated by the offender. Appealing to the violated norm enables this theory to answer the descriptive questions (e.g., taking offense differs from anger because of features like not requiring victims and the difficulty of animal offense) and the normative questions of offense (e.g., taking offense is apt only if the violated norm is universalizable). (shrink)

What, normatively speaking, are the grounds of rational choice? This paper defends ‘comparativism’, the view that a comparative fact grounds rational choice. It examines three of the most serious challenges to comparativism: 1) that sometimes what grounds rational choice is an exclusionary-type relation among alternatives; 2) that an absolute fact such as that it’s your duty or conforms to the Categorial Imperative grounds rational choice; and 3) that rational choice between incomparables is possible, and in particular, all that is needed (...) for the possibility of rational choice is that one alternative is not worse than the others. Each challenge is questioned. If comparativism is correct, then no matter what normative theory you favor, your answer to the question, ‘What makes my choice rational?’ must be comparative in form. In this way, comparativism provides a framework for normative theorizing. (shrink)

Recently, some of the leading proponents of the view that there is widespread incommensurability among goods have suggested that the incommensurability of some goods is a constitutive feature of the goods themselves. So, for example, a friendship and a million dollars are incommensurable because it is part of what it is to be a friendship that it be incommensurable with money. According to these ‘constitutive incommensurabilists’ incommensurability follows from the very nature of certain goods. In this paper, I examine this (...) idea and argue that constitutive incommensurabilists have mistaken for constitutive incommensurability a particular emphatic kind of comparability. This examination involves an account of ‘higher’ and ‘lower’ goods and an explanation of how goods of different ‘types’ figure in practical conflict. (shrink)

Slurs are both derogatory and offensive, and they are said to exhibit “derogatory force” and “offensiveness.” Almost all theories of slurs, except the truth-conditional content theory and the invocational content theory, conflate these two features and use “derogatory force” and “offensiveness” interchangeably. This paper defends and explains the distinction between slurs’ derogatory force and offensiveness by fulfilling three goals. First, it distinguishes between slurs’ being derogatory and their being offensive with four arguments. For instance, ‘Monday’, a slur in the Bostonian (...) argot, is used to secretly derogate African Americans without causing offense. Second, this paper points out that many theories of slurs run into problems because they conflate derogatory force with offensiveness. For example, the prohibition theory’s account of offensiveness in terms of prohibitions struggles to explain why ‘Monday’ is derogatory when it is not a prohibited word in English. Third, this paper offers a new explanation of this distinction from the perspective of a speech act theory of slurs; derogatory force is different from offensiveness because they arise from two different kinds of speech acts that slurs are used to perform, i.e., the illocutionary act of derogation and the perlocutionary act of offending. This new explanation avoids the problems faced by other theories. (shrink)

The paper has two aims. The first is to propose a general framework for organizing some central questions about normative practical reasons in a way that separates importantly distinct issues that are often run together. Setting out this framework provides a snapshot of the leading types of view about practical reasons as well as a deeper understanding of what are widely regarded to be some of their most serious difficulties. The second is to use the proposed framework to uncover and (...) diagnose what I believe is a structural problem that plagues the debate about practical reasons. A common move in the debate involves a proponent of one type of view offering what she and others proposing that type consider to be a devastating criticism of an opposing type of view, only to find that her criticism is shrugged off by her opponents as easy to answer, misguided, or having little significance for their view. This isn’t due to conceptual blindness or mere slavish devotion to a theory but something fundamental about the argumentative structure of a debate over genuinely shared issues. Hence, the debate about practical reasons suffers from argumentative gridlock. The proposed framework helps us to see why this is so, and what we might do to move beyond it. (shrink)

Slurs are derogatory, and theories of slurs aim at explaining their “derogatory force”. This paper draws a distinction between the type derogatory force and the token derogatory force of slurs. To explain the type derogatory force is to explain why a slur is a derogatory word. By contrast, to explain the token derogatory force is to explain why an utterance of a slur is derogatory. This distinction will be defended by examples in which the type and the token derogatory force (...) come apart. Because of the distinction, an adequate theory of slurs must be plausible for both the type and the token derogatory force. However, I will argue that many theories fail to be plausible for both. In particular, Hom’s combinatorial externalism and the conventional implicature theory offer implausible accounts of the token derogatory force, whereas the prohibitionist theory is insufficient to explain the type derogatory force. (shrink)

Chắc lại phải thốt lên lời cũ của tiền nhân: -/- Bất tri tam bách dư niên hậu -/- Thiên hạ hà nhân khấp Tố Như.

Tới nay, ngài Bói Cá đã nhận được tương đối nhiều bình luận của độc giả. Số lượng người bình luận cũng đang tăng lên theo thời gian.

He drove a taxi. Now he drives a truck. So, must he be driving the truck right now? Must he, as long as he's working as a truck driver, keep driving his truck all day and all night? What do we speak of, when we speak of "now"? In this talk, some popular conceptions in the philosophy of time will be put under critical scrutiny: (1) The present (the "now") is an instant, a time point with no length; (2) the (...) "content" of the present is always an event, a happening, which constitutes a segment of a larger process; (3) what (time) is now, is determined by the passage of time (itself). The following points will be defended respectively: (1) The present may be a time period. "Now" is not an indivisible time-atom in the substantival sense. (2) What is now can be an event, a process, or a state. "Driving a truck now" – in the sense of being a truck driver – is neither an event nor something happening to him. (3) "Now", among other temporal concepts, is not a name for any thing, but schemata under which we understand ways things being themselves. There are variety of ways of being, and accordingly there are multiple aspects of now-ness. (shrink)

‘Value pluralism’ as traditionally understood is the metaphysical thesis that there are many values that cannot be ‘reduced’ to a single supervalue. While it is widely assumed that value pluralism is true, the case for value pluralism depends on resolution of a neglected question in value theory: how are values properly individuated? Value pluralism has been thought to be important in two main ways. If values are plural, any theory that relies on value monism, for example, hedonistic utilitarianism, is mistaken. (...) The plurality of values is also thought to raise problems for rational choice. If two irreducibly distinct values conflict, it seems that there is no common ground that justifies choosing one over the other. The metaphysical plurality of values does not, however, have the implications for rational choice that many have supposed. A charitable interpretation of value pluralist writings suggests a ‘nonreductive’ form of value pluralism. Nonreductive value pluralism maintains that in the context of practical choice, there are differences between values—whether or not those values reduce to a single supervalue—that have important implications for rational choice. This article examines the main arguments for metaphysical value pluralism, argues that metaphysical value pluralism does not have certain implications that it is widely thought to have, and outlines three forms of nonreductive value pluralism. (shrink)

He drove a taxi. Now he drives a truck. So, must he be driving the truck right now? Must he, as long as he's working as a truck driver, keep driving his truck all day and all night? What do we speak of, when we speak of "now"? In this talk, some popular conceptions in the philosophy of time will be put under critical scrutiny: (1) The present (the "now") is an instant, a time point with no length; (2) the (...) "content" of the present is always an event, a happening, which constitutes a segment of a larger process; (3) what (time) is now, is determined by the passage of time (itself). The following points will be defended respectively: (1) The present may be a time period. "Now" is not an indivisible time-atom in the substantival sense. (2) What is now can be an event, a process, or a state. "Driving a truck now" – in the sense of being a truck driver – is neither an event nor something happening to him. (3) "Now", among other temporal concepts, is not a name for any thing, but schemata under which we understand ways things being themselves. There are variety of ways of being, and accordingly there are multiple aspects of now-ness. (shrink)

Khi đó, các nhà nghiên cứu có đi họp xe bò kéo không nhỉ, rồi thảo luận về loài không còn tồn tại đã từng có tên gọi là “penguin”?

Để vui đùa ngày thu nắng đẹp vàng ruộng lúa, thì ắt phải sang với các bạn nhẹ gánh sự đời.

Mobile Edge Computing (MEC) is an emerging technology that enables computing directly at the edge of the cloud computing network. Therefore, it is important that MEC is applied with reliable transmission. The problem of reaching consensus in the distributed system is one of the most important issues in designing a reliable transmission network. However, all previous protocols for the consensus problem are not suitable for an MEC paradigm. It is the first time an optimal protocol of reaching consensus is pro- (...) posed for MEC paradigm. The protocol makes all fault-free nodes communicate with each other and collect the exchanged messages to decide a common value. Based on the common value, the protocol ensures all fault-free nodes reach consensus without the influence of unreliable transmission. Finally, we proved theoretically that the proposed protocol can tolerate the maximum number of faulty components and using only two rounds of message exchanges. (shrink)

Objective: This study aimed to investigate and compare the effects of tubular gastroesophageal anastomosis and traditional gastroesophageal supra-arch anastomosis on the postoperative lung function of patients with esophageal carcinoma. -/- Methods: A total of 90 patients with middle-lower segmental esophageal cancer admitted in our hospital from August 2014 to August 2016 were recruited to our study. They were randomly divided into two groups. The observation group underwent tubular gastroesophageal anastomosis, whereas the control group underwent traditional gastroesophageal supra-arch anastomosis. Changes in (...) the postoperative pulmonary function were compared between the two groups. -/- Results: The numbers of CD4 cells (27.45 ± 5.48), CD8 cells (35.97 ± 7.16), and natural killer cells (20.79 ± 2.49), as well as the CH4/CD8 ratio (0.69 ± 0.18), of the patients in the observation group were significantly higher than the (38.45 ± 5.98), (20.45 ± 6.41), (39.44 ± 3.49), and (1.31 ± 0.48), respectively, of the patients in the control group. The differences between the two groups were statistically significant (P<0.05). By contrast, the preoperative forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), and maximum voluntary ventilation (MVV) did not significantly differ between the two groups (P>0.05). The FEV1 (1.76 ± 0.41 L), FVC (2.33 ± 0.32 L), and MVV (33.7 ± 5.2 L/min) of the observation group were significantly higher than those of the control group (P<0.05). Meanwhile, the complication rate of the observation group was 42.2%, which was significantly lower than that of the control group (75.6%) (P<0.05). -/- Conclusion: Tubular gastroesophageal anastomosis can benefit patients with esophageal cancer by significantly reducing the adverse effects on their postoperative pulmonary function and control the occurrence of postoperative complications. (shrink)

This is a synoptic and critical commentary on Joseph Raz’s From Normativity to Responsibility.

Multiple loop heat pipes which have two evaporators and two condensers in one loop are a kind of active heat transfer device. Since they have two evaporators and two condensers, the operating mode also becomes multiple. This work discusses the cases that multiple loop heat pipes were operated with one condenser at high temperature and the other at low temperature. To avoid the high temperature returning liquid and keep the multiple loop heat pipes work properly, the flow regulator which was (...) made of polyethylene was designed, fabricated and applied in this test. The effect of flow regulator was confirmed and analyzed. In the test that large temperature difference existed between two sinks, it can be found according to the result that the flow regulator worked effectively and prevented the high temperature vapor to enter the inlet of common liquid line, which can keep the evaporators and returning liquid to operate at low temperature. With the increment of heat loads and the temperature difference between two sinks, the pressure difference between two condensers became larger and larger. When the pressure difference was larger than the flow regulator’s capillary force, the flow regulator could not work properly because the high temperature vapor began to flow through the flow regulator. According to the test data, the flow regulator can work properly within the sinks’ temperature 0?C/60?C and the two evaporators’ heat load 30/30 W. (shrink)

On a ‘comparative’ conception of practical reasons, reasons are like ‘weights’ that can make an action more or less rational. Bernard Gert adopts instead a ‘toggle’ conception of practical reasons: something counts as a reason just in case it alone can make some or other otherwise irrational action rational. I suggest that Gert’s conception suffers from various defects, and that his motivation for adopting this conception – his central claim that actions can be rational without there being reasons for them (...) – does not require adoption of the toggle conception. The more intuitive comparative conception of reasons for action can accommodate the insight. (shrink)

Chuyện thứ 37 của tập ngụ ngôn Bói Cá, The Kingfisher Story Collection.

Husserl's Absolute-Flow-Model (AFM) represents an approach to a coherent phenomenological description of time-consciousness. Within the AFM framework the streaming of every real moment in the flow of time-consciousness is necessarily concomitant with some retentional or protentional modifications of time-consciousness modes. These modifications of consciousness, i.e. all retentions and protentions, are characterized here as "temporal apprehension." By means of this distinctive function of time-consciousness, all constituents of one and the same consciousness phase are assigned an intentional sense as their temporal index, (...) so that all these constituents can be temporally represented and distinguished by time-consciousness. In this way, the AFM can overcome some of the difficulties in describing the flow of consciousness. (shrink)

Dĩ nhiên ngàn đời xưa nay cây vẫn như vậy. Nhưng cái sự quen thuộc ngàn đời vẫn có nhiều thứ có thể làm người quan sát thấy thú vị, đáng học hỏi và hiểu thêm ra vài điều giá trị.

Nghe dân làng bàn tán xì xào vài ngày qua, p/v Chẫu lập tức đi tác nghiệp, xác minh thông tin.

Mấy dòng ngắn để bố cáo có vidéo ngắn (khoảng gần 1 phút) của anh Jordan Kelly trên Amazon.

Most theories of slurs fall into one of two families: those which understand slurring terms to involve special descriptive/informational content (however conveyed), and those which understand them to encode special emotive/expressive content. Our view is that both offer essential insights, but that part of what sets slurs apart is use-theoretic content. In particular, we urge that slurring words belong at the intersection of a number of categories in a sociolinguistic register taxonomy, one that usually includes [+slang] and [+vulgar] and always (...) includes [-polite] and [+derogatory]. Thus, e.g., what distinguishes ‘Chinese’ from ‘chink’ is neither a peculiar sort of descriptive nor emotional content, but rather the fact that ‘chink’ is lexically marked as belonging to different registers than ‘Chinese’. It is, moreover, partly such facts which makes slurring ethically unacceptable. (shrink)

Đúng 7 năm trước, tức tháng 5 năm 2017, trang Khoảng lặng của Tạp chí Kinh tế và Dự báo ra đời.