The Privilege of the Unpaid Intern By RANDYE HODER http://parenting.blogs.nytimes.com/2013/06/19/the-privilege-of-the-unpaid-intern/?src=recg Like 30 percent of undergraduates in the United States, my daughter, Emma,has an unpaid internship this summer. She is one of the lucky ones. She isfollowing her passion: her internship at a food Web site is in her field ofstudy; the work she’s doing there is providing her, at age 20, with valuableskills, experience and connections. But the idea of an unpaid internship is a misnomer — mostly because someoneis, in some sense, paying. In this case, it’s my husband and me (with a helpinghand from various friends and relatives). Emma’s internship is in New York City, across the country from our LosAngeles home. We can afford it, in large part, because she has a friend whosefamily generously offered her a place to stay this summer. Otherwise, she mighthave had to pass on this great opportunity. (Her friend, by the way, is afellow undergrad with an unpaid internship at a Condé Nast magazine.) There are, of course, other expenses: round-trip airfare, housingincidentals, food and a MetroCard, to name just a few. With no salary, Emmaherself can’t afford any of those things — more expenses for the parents whoare footing the bill. These are costs that only those with relatively highincomes can afford. Meanwhile, those who are from less well-to-do householdsare getting left behind. The long-term impact can be significant. Although students with paidinternships have the best postgraduate opportunities, research shows those withunpaid internships fare better than those without them. In a recentsurvey from American Public Media’s “Marketplace” and the Chronicleof Higher Education, employers cited experiences gained from internships asamong the top reasons for hiring a grad — more important than a student’smajor, university or grade point average. Indeed, 79 percent of employerssurveyed said that unpaid internships have a positive impact when they evaluategraduates for hire. The pros and cons of unpaid internships — which account for about half ofall college internships — have been much discussed of late. Last week, aFederal District Court judge in Manhattan ruled that FoxSearchlight Pictures had violated federal and New York minimum wage laws by not paying two production interns. Among the key issues that the courtconsidered was whether the studio had provided a sufficient educationalenvironment to the interns and whether the experience had benefited them, notthe employer. But this kind of case, while it grabs headlines, ignores a stark reality:Only those rich enough can take a job with no paycheck in the first place. The conversation shouldn’t just be about “the interns who work for free,”says Christie Thompson of ProPublica, a nonprofit news organization, which lastmonth opened an investigation into what it calls the “booming interneconomy.” Also affected are “the thousands of people shut out of journalism,politics, the arts and other fields because they can’t afford to take unpaidinternships on their climb to a career.” Commenting recently in The Guardian, the writer David Dennis went so far asto assert that unpaid internships were “ruining journalism” by squeezingout the voices of those with “mid- to lower-classbackgrounds.” Publications that use unpaid interns, he says, are “perpetuatinga privilege-based upward mobility.” If all employers, whether businesses, nonprofits or government agencies,were required to pay every intern at least minimum wage, more students wouldhave access to more internships. “Paying interns the minimum wage is the rightand moral thing to do,” says Robert Shindell, vice president and chief learningofficer at Intern Bridge, a research firm. “It levels the playing field andallows us to focus on the more important question: Are we as a societyeffectively transitioning our students from college to the world of work?” Landing an internship is an important stepping stone for a young person.Those jobs should be going to those students who prove themselves the mostcapable — regardless of whether their parents have fat wallets. RandyeHoder is a Los Angeles-based freelance writer. Unpaid Internships Published: June 18, 2013 http://www.nytimes.com/2013/06/19/opinion/unpaid-internships.html?src=recg To the Editor: An unpaid internship the summer after freshman year ofcollege was one of the most valuable experiences of my life. I developed usefulskills, built my résumé and learned I loved working for nonprofit publicinterest groups. Because of that summer, I applaud Judge William H.Pauley III’s decision that interns who are treated like regular workers must bepaid minimum wage (“ JudgeRules That Movie Studio Should Have Been Paying Interns ,” Business Day,June 12). I could take terrific internships because my parentswere wealthy and generous enough to support me while I worked for little or nomoney. Meanwhile, my less fortunate roommate was waiting tables to supporthimself and his family. Unpaid and low-paid internships gave me an undeservededge later in my career. Giving interns who are de facto employees minimum wagewill give people from low-income families a chance to take those internships.That will make the job market fairer to all. MATTHEW A. FEIGIN New York, June 14, 2013
Title: Design, Growth, and Characterization of Morphology-Tunable CdxZn1-xS Nanostructures Generated by a One-step Thermal Evaporation Process 还没有正式的期刊号，不过已经有幸被选为 Hot Article! 论文主要讲述的是利用热蒸发法一步合成形貌可控的 Cd x Zn 1-x S 合金纳米材料，并且从其光致发光以及电致发光性质可以看出， Cd x Zn 1-x S 合金纳米材料的带隙连续可调。 如果感兴趣，可以下载阅读。下附编辑发过来的一封信。 Paper Ref.: C2CE25181G Title: Design, Growth, and Characterization of Morphology-Tunable CdxZn1-xS Nanostructures Generated by a One-step Thermal Evaporation Process Congratulations, your above paper has been selected as a CrystEngComm Hot Article! It is currently featured on our CrystEngComm Blog at http://blogs.rsc.org/ce/2012/04/26/nanoswords-nanobelts-and-nanocombs-an-expanding-wardrobe-for-the-nanopeople/ and will be free to access for the next 4 weeks. This is a great opportunity for your work to reach a wider audience, as our blog will be publicised on the journal homepage, in the CrystEngComm table-of-contents e-alerts , and on Twitter . I invite you (or your co-workers) to tell our readers more about your Hot Article by posting a comment on the CrystEngComm Blog story. In addition to this I would like to offer you the opportunity to circulate your paper to a number of colleagues and researchers in your field. If you haven’t already done so, please may you provide me with up to 10 names and e-mail addresses of people who you would like to read your article. I will arrange for them to be sent a link to your manuscript, highlighting its publication in CrystEngComm . Please also consider linking to our article on your own website, and mention this to your department or university media team. CrystEngComm is published by RSC Publishing, a not-for-profit publisher wholly owned by the Royal Society of Chemistry, UK. One way we support and promote chemistry is via RSC funded journal grants for international authors, visit the website to find out more. Thank you for choosing to publish this work in CrystEngComm . I would like to take this opportunity to invite you to submit your next research article for publication in CrystEngComm. Please may you let me know if you are interested in this? We look forward to receiving your next paper soon. High-quality morphology-tunable CdxZn1-xS nanostructures were synthesized through a one-step thermal evaporation process. They are in the forms of (a) nanoswords, (b) super-long nanowires, (c) cubic n ...
http://soft.proindependent.com The Graph Menu This menu is only active (visible) when a graph window is selected. Graph - Add/Remove Curves... ( Alt-C ) Opens the Add/Remove Curves... dialog , allowing easy addition or removal of curves from the active plot layer. This dialog can also be used to modify a curve which is already plotted by changing the columns which are used as X or Y values. The curve is added to the currently active layer. If there is no layer on the graph, an error message will pop-up. Graph - Add Function... ( Ctrl-Alt-F ) Opens the Add Function... dialog . This command is used to add new function curves to an existing layer. New curves are added to the currently active layer. Graph - Add Error Bars... ( Ctrl-B ) Opens the Add Error Bars... dialog . You can add error bars to X and/or Y values on an existing plot. Error bars are added to the currently active layer. Graph - New Legend ( Ctrl-L ) Adds a new legend object to the active layer. You can have more than one legend on a plot. These legends can later be customized by double clicking on a given legend. Graph - Add Equation ( Alt-Q ) This command is used to add a Tex formatted equation on a layer. When selected, the cursor changes to an edit text cursor. You must then click in the plot area to specify the position of the new Tex equation. A Tex equation editor will pop-up allowing you to enter the equation to be displayed and set all its properties (color, font, etc...) Graph - Add Text ( Alt-T ) This command is used to add text items on a layer. When selected, the cursor changes to an edit text cursor. You must then click in the plot area to specify the position of the new text box. A text dialog will pop-up allowing you to type the text to be displayed and set all its properties (color, font, etc...) Graph - Draw Arrow ( Ctrl-Alt-A ) Changes the active layer's operational mode to drawing mode. You must click on the layer canvas in order to specify the starting point for the new arrow, and then click once more to specify its ending point. You can edit the new arrow using the Arrow dialog. Switch back to the normal operating mode by clicking the "Pointer" icon in the Plot toolbar. Graph - Draw Line ( Ctrl-Alt-L ) Changes the active layer's operational mode to drawing mode. You must click on the layer canvas in order to specify the starting point for the new line, and then click once more to specify its ending point. You can edit the new line using the line dialog. Switch back to normal operating mode by clicking the "Pointer" icon in the Plot toolbar. Graph - Add Rectangle ( Ctrl-Alt-R ) Draws a rectangular box on the active plot layer. After selecting this command, the pointer changes to a crosshair target. Click and hold the left mouse button on the active layer to indicate the first corner of the rectangle, then drag the cursor to the opposite corner of the rectangle. Once the second point is specified, release the left mouse button to draw the rectangle. The pointer automatically changes back to normal mode. Graph - Add Ellipse ( Ctrl-Alt-E ) Draws a elliptical shape on the active plot layer. After selecting this command, the pointer changes to a crosshair target. Click and hold the left mouse button on the active layer to indicate the first corner of the ellipse's bounding rectangle, then drag the cursor to the opposite corner of the bounding rectangle. Once the second point is specified, release the left mouse button to draw the ellipse. The pointer automatically changes back to normal mode. Circles may be drawn using this command by setting the height and width equal. (The object properties dialog can be used to set height and width to exactly the same value.) Graph - Add Time Stamp ( Ctrl-Alt-T ) This command is used to add a special label in the active layer which contains the current date and time. The properties of this label can be customized like any other label added by the Add Text . The date and time copied into a timestamp label is not modified later if the plot is modified, saved, etc. Graph - Add Image ( Alt-I ) Opens a file dialog allowing you to select an image to be added to the active plot layer. Only a link to the image file will be saved into the project file and not the image itself. The new image is added to the left-top corner of the layer and can be moved with the mouse using drag-and-drop. Z-Order Commands... The zorder commands act upon the last few items. Even though they do not appear in the graph menu, they are in the plot toolbar and in the object drop down lists when right clicking a selected object. Move to Top Although this command does not appear in the Graph menu, it does act upon the objects created using the last few commands (specifically legend, equation, text, timestamp, ellipse, rectangle and image objects). When a suitable object is selected, this command will be available, either from the Plot toolbar or from the drop-down list that appears when right-clicking on a selected object. When the command is used, the object will be made visible by being promoted to the front of the plot layer. It does not affect the z-order relative to other objects. Their relative z-order depends only upon their order of creation. Move to Bottom Although this command does not appear in the Graph menu, it does act upon the objects created using the last few commands (specifically legend, equation, text, timestamp, ellipse, rectangle and image objects). When a suitable object is selected, this command will be available, either from the Plot toolbar or from the drop-down list that appears when right-clicking on a selected object. When the command is used, the object will be made invisible by being demoted to the back of the plot layer. It does not affect the z-order relative to other objects. Their relative z-order depends only upon their order of creation. Graph - Add Layer ( Alt-L ) Adds a new layer to a graph window. The command opens a dialog which allows you to select whether the new layer is to be added to the left-top corner of the plot window or to a best-guess position (based on a layer positioning algorithm in columns and rows). Graph - Add Empty Inset Layer This is a convenience command that creates a new, small sized, empty layer located on top of the currently selected layer. Once this layer is created, you can further resize, move, set it's properties and add curves to it as needed. Inset layers are not linked to another layer in any way. They just happen to be located in the same place on the graph window. In fact the inset layer can be moved anywhere on the graph window and is treated like a normal layer in every way. When the inset layer is completely contained inside another layer, it will disappear under that layer when it is selected. The new inset layer has it's own layer select button in the upper left of the graph window. Clicking on this button will bring the inset back to the front, rendering it visible again. Graph - Add Inset Layer With Curves This command is essentially identical to the Add Empty Inset Layer command, with the single exception that any curves contained in the currently active layer are duplicated in the new inset layer. Graph - Arrange Layers ( Shift-A ) Opens the Arrange layers dialog . This dialog allows you to customize the layout of the layers in the active graph window. Graph - Automatic Layout command Automatically arranges all the layers in the active graph window. There must be at least 2 layers on the graph. Layers are packed into the smallest dimensioned array possible. All layers are scaled to fit into the existing graph window. Rows are added until a the smallest square array is filled, at which point an additional column is added. Rows are then filled and additional rows added until the array is again square. For example, 2 layers results in a 1x2 array. 3 layers produces a 2x2 array with an empty space in the second row. 4 layers produces a full 2x2 array. Adding another layer will produce a 2x3 array, with one empty space in the second row. Additional layers result in more rows and columns being added to contain all the layers. Graph - Extract to Graphs command Each layer in the currently active graph window is copied into its own, newly created, graph window. The scale and size of the new layer is the same as the original layer. The original graph window remains unchanged. Graph - Extract to Layers command Each curve in the currently active layer is moved onto a newly created layer. The original layer is destroyed. The newly created layers are then auto arranged (see the Automatic Layout command). Graph - Remove Layer ( Alt-R ) Deletes the active layer and pops-up a question dialog allowing you to choose whether the remaining layers should be automatically re-arranged or not.
刚收到Chem.Commun.编辑部的邮件，我们12月下旬online的论文，成为该刊12月份的Hot article。 一共列出了6篇论文，名单中第二的就是我们的论文。下面是一段原文： Rauhut–Currier reaction strikes again Phosphinothioureas can be used as organocatalysts for asymmetric Rauhut-Currier reactions of bis(enones). Xin-Yan Wu and co-workers achieved good yields (up to 99%) with excellent enantioselectivities (up to 99.4% ee). Ifyou’re interested to know more about the reaction conditions used then why notdownload their communication today? 感谢一直努力工作的G同学！ 感谢暑期为我们提供低温装置的T同事。 感谢和我讨论分析反应机理的L同事。 感谢为interview内容润色英文的H同学。 感谢挣钱养家的宝爸和乖巧的Lynn宝贝。 感谢NSFC、NCET和ECUST的经费资助。
ScienceWatch.com has tracked the following New Hot Papers which had the highest percentage increase in citations in Essential Science Indicators SM from Thomson Reuters from the sixth bimonthly period of 2009 to the first bimonthly period of 2010, a total of 1,885 hot papers were identified, of which 1,248 (66.2%) were new. Some papers have comments sent in by the author(s) of the paper which may include images and descriptions of their work. 详细请见 http://sciencewatch.com/dr/nhp/2010/10maynhp/
http://sciencewatch.com/dr/sci/10/jan17-10_3/ Five-year Wilkinson Microwave Anisotropy Probe observations: Likelihood and parameters from the WMAP data, by J. Dunkley and 18 others, Astrophysical Journal Supplement Series , 180(2): 306-29, February 2009. From the abstract: This paper focuses on cosmological constraints derived from analysis of WMAP data alone. A simple Lambda CDM cosmological model fits the five-year WMAP temperature and polarization data. The basic parameters of the model are consistent with the three-year data and now better constrained. With five years of polarization data, we have measured the optical depth to reionization, tau 0, at 5 sigma significance. The redshift of an instantaneous reionization is constrained to be z(reion) = 11.0 +/- 1.4 with 68% confidence. The 2 sigma lower limit is z(reion) 8.2, and the 3 sigma limit is z(reion) 6.7. This excludes a sudden reionization of the universe at z = 6 at more than 3.5 sigma significance, suggesting that reionization was an extended process. Using two methods for polarized foreground cleaning we get consistent estimates for the optical depth, indicating an error due to the foreground treatment of tau similar to 0.01. This cosmological model also fits small-scale cosmic microwave background (CMB) data, and a range of astronomical data measuring the expansion rate and clustering of matter in the universe. This 2009 report from Astrophysical Journal Supplement Series was cited 75 times in current journal articles indexed by Thomson Reuters during September-October 2009. With that latest two-month tally, this report is currently the second-most-cited physics paper published in the last two year, aside from reviews. (In fact, the paper is second only to another report on the Wilkinson Microwave Anisotropy Probe , from the same journal issue.) Prior to the most recent bimonthly count, citations to the paper have accrued as follows: July-August 2009: 51 citations May-June 2009: 54 March-April 2009: 19 January-February 2009: 4 Total Citations to date: 203
注：以下的论文合集是我们刊为2008年11月清华大学高研中心举办的超冷量子气前沿国际研讨会而特别制作的，作者之一翟荟博士来自会议主席何天伦教授研究小组。有兴趣的读者可以浏览我们的网站，如需索取pdf文件请与作者或我联系：58556299董洪光。 我将贴出后续各期的文章目录。期待国内外物理学家不吝赐稿（综述或论文，英文版，篇幅不限，免一切费用）！ CONTENTS Frontiers of Physics Bound Edition (AMO Articles ■ Volume 1 ~ 3 ) http://journal.hep.com.cn http://www.springerlink.com/content/1673-3606 Cover illustration The action of the collisional quantum gate array leads to entanglement oscillations in the multiparticle system. These can be made visibily in a Ramsey type interference experiment. For a disentangled state (left) the visibility of the resulting Ramsey interference pattern is rather high, whereas for an entangled state (middle) the visibility almost vanishes. A further application of the quantum gates can however restore the interference pattern again (right). The cover image is copied from the following website: http://www.quantum.physik.uni-mainz.de/bec/gallery/index.html Hot Articles in AMO (Atomic, Molecular, and Optical Physics) Strongly interacting ultracold quantum gases Hui ZHAI (翟荟) 1,2,3,4 1 Center for Advanced Study, Tsinghua University, Beijing 100084, China 2 Department of Physics, Ohio-State University, Columbus, Ohio, 43210, USA 3 Material Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA 4 Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA E-mail: huizhai.physics@gmail.com This article reviews recent progresses in ultracold quantum gases, and it includes three subjects which are Fermi gases across a Feshbach resonance, quantum gases in the optical lattices and the fast rotating quantum gases. 20 pages Manipulating atomic states via optical orbital angular-momentum Xiong-jun LIU (刘雄军) 1,2 *, Xin LIU 2 , Leong-Chuan KWEK 1,3 , Choo Hiap OH 1 1 Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542 2 Department of Physics, Texas AM University, College Station, Texas 77843-4242, USA 3 National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 639798 E-mail: phylx@physics.tamu.edu In this paper, we first review the general theory of generating adiabatic gauge field in ultracold atomic systems by coupling atoms to external optical fields with OAM, and point out the applications of the generated adiabatic gauge field. Then, we review our work in this field, including the generation of 13 pages Ion-trap quantum information processing: experimental status Dave KIELPINSKI Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia E-mail: dave.kielpinski@gmail.com, d.kielpinski@griffith.edu.au Atomic ions trapped in ultra-high vacuum form an especially well-understood and useful physical system for quantum information processing. They provide excellent shielding of quantum information from environmental noise, while strong, well-controlled laser interactions readily provide quantum logic gates. A number of basic quantum information protocols have been demonstrated with trapped ions. Much current work aims at the construction of large-scale ion-trap quantum computers using complex microfabricated trap arrays. Several groups are also actively pursuing quantum interfacing of trapped ions with photons. 17 pages The physics of 2 1 + 1 Yanhua SHIH (史砚华) Department of Physics, University of Maryland, Baltimore County, Baltimore, MD 21250, USA E-mail: shih@umbc.edu One of the most surprising consequences of quantum mechanics is the entanglement of two or more distant particles. In an entangled EPR two-particle system, the value of the momentum (position) for neither single subsystem is determined. However, if one of the subsystems is measured to have a certain momentum (position), the other subsystem is determined to have a unique corresponding value, despite the distance between them. The peculiar behavior of an entangled quantum system has surprisingly been observed experimentally in two-photon temporal and spatial correlation measurements, such as ghost interference and ghost imaging. This article addresses the fundamental concerns behind these experimental observations and to explore the nonclassical nature of two-photon superposition by emphasizing the physics of 21 + 1. 28 pages Generation and detection of infrared single photons and their applications He-ping ZENG (曾和平) 1* , Guang WU (吴光) 1 , E. Wu 1,2 (武愕), Hai-feng PAN (潘海峰) 1 , Chun-yuan ZHOU (周春源) 1 , F. Treussart 2 , J.-F. Roch 2 1 Key Laboratory of Optical and Magnetic Resonance Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062, China 2 Laboratoire de Photonique Quantique et Molculaire, UMR CNRS 8537, ENS Cachan, 61 avenue du Prsident Wilson, 94235 Cachan cedex, France E-mail: hpzeng@phy.ecnu.edu.cn Unbreakable secret communication has been a dream from ancient time. It is quantum physics that gives us hope to turn this wizardly dream into reality. The rapid development of quantum cryptography may put an end to the history of eavesdropping. This will be largely due to the advanced techniques related to single quanta, especially infrared single photons. In this paper, we report on our research works on single-photon control for quantum cryptography, ranging from singlephoton generation to single-photon detection and their applications. 20 pages Continuous variable quantum communication with bright entangled optical beams Chang-de XIE (谢常德) * , Jing ZHANG (张靖), Qing PAN ( 潘庆), Xiao-jun JIA (贾晓军), Kun-chi PENG (彭堃墀) State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China E-mail: changde@sxu.edu.cn In this paper, we briefly introduce the basic concepts and protocols of continuous variable quantum communication, and then summarize the experimental researches accomplished by our group in this field. 13 pages The security and recent technology of quantum key distribution Xiang-bin WANG (王向斌) 1* , Hao YIN (尹浩) 2 , Huai-xin MA (马怀新) 2 , Cheng-zhi PENG (彭承志) 1 , Tao YANG (杨涛) 3 , Jian-wei PAN (潘建伟) 3 1 Department of Physics, Tsinghua University, Beijing 100084, China 2 China Electronic System Engineering Company, Beijing 100039, China 3 Hefei National Laboratory for Physical Sciences at Microscale,University of Science and Technology of China, Hefei 230026, China E-mail: wang_xiangbin@hotmail.com In principle, quantum key distribution (QKD) can be used to make unconditionally secure private communication. However, the security of the existing real system for QKD needs to be carefully examined. Actually, the existing experiments based on weak coherent states are not secure under photon-number-splitting attack. 5 pages Quantum secure direct communication and deterministic secure quantum communication Gui-lu LONG (龙桂鲁) 1,2* , Fu-guo DENG (邓富国) 1,3 , Chuan WANG (王川) 1 , Xi-han LI (李熙涵) 2 , Kai WEN 1 ,Wan-ying WANG 1 1 Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084, China 2 Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China 3 Key Laboratory of Beam Technology and Material Modification of Ministry of Education, and Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China E-mail: gllong@tsinghua.edu.cn In this review article, we review the recent development of quantum secure direct communication (QSDC) and deterministic secure quantum communication (DSQC) which both are used to transmit secret message, including the criteria for QSDC, some interesting QSDC protocols, the DSQC protocols and QSDC network, etc. The difference between these two branches of quantum communication is that DSQC requires the two parties exchange at least one bit of classical information for reading out the message in each qubit, and QSDC does not. 22 pages
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