Class Definition and 942 Threads

A social class is a set of concepts in the social sciences and political theory centered on models of social stratification which occurs in class society, in which people are grouped into a set of hierarchical social categories, the most common being the upper, middle and lower classes. Membership in a social class can for example be dependent on education, wealth, occupation, income, and belonging to a particular subculture or social network."Class" is a subject of analysis for sociologists, political scientists, anthropologists and social historians. However, there is not a consensus on a definition of "class" and the term has a wide range of sometimes conflicting meanings. Some people argue that due to social mobility, class boundaries do not exist. In common parlance, the term "social class" is usually synonymous with "socio-economic class", defined as "people having the same social, economic, cultural, political or educational status", e.g., "the working class"; "an emerging professional class". However, academics distinguish social class and socioeconomic status, using the former to refer to one's relatively stable sociocultural background and the latter to refer to one's current social and economic situation which is consequently more changeable over time.The precise measurements of what determines social class in society have varied over time. Karl Marx thought "class" was defined by one's relationship to the means of production (their relations of production). His understanding of classes in modern capitalist society is that the proletariat work but do not own the means of production, and the bourgeoisie, those who invest and live off the surplus generated by the proletariat's operation of the means of production, do not work at all. This contrasts with the view of the sociologist Max Weber, who argued "class" is determined by economic position, in contrast to "social status" or "Stand" which is determined by social prestige rather than simply just relations of production. The term "class" is etymologically derived from the Latin classis, which was used by census takers to categorize citizens by wealth in order to determine military service obligations.In the late 18th century, the term "class" began to replace classifications such as estates, rank and orders as the primary means of organizing society into hierarchical divisions. This corresponded to a general decrease in significance ascribed to hereditary characteristics and increase in the significance of wealth and income as indicators of position in the social hierarchy.

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  1. K

    Proof involving partitions and equivalence class

    Homework Statement Show that every partition of X naturally determines an equivalence relation whose equivalence classes match the subsets from the partition. Homework Equations ( 1 ) we know that equivalence sets on X can either be disjoint or equal The Attempt at a Solution Let Ai be a...
  2. X

    Why is the complexity class expression this?

    I'm trying to understand complexity class algorithms off of my professor's lecture notes, but I still can't get a hang of it. void sort(int a[], int N) { //N is the length of the array for (int base=0; base<N; ++base) for (int check=base+1; check<N; ++check) if...
  3. E

    Seeking advice for Physics class....

    Greetings Folks! I am studying Industrial Engineering in Koç University. Because of the applied core program we are having Physics course as natural. For first term code of the course is 101 (which covers classical mechanics). Although Physics was&is my favorite subject I continuously fail at...
  4. ElijahRockers

    Why does my class ring flip up when I spin it?

    Just curious. Not sure if this has been discussed already, and I'm not sure what the phenomenon is called, but here's a description: I have a heavy gold class ring that I got from my alma mater. I put the ring face down on the desk, flat, and it can rest like that because the face of the ring...
  5. W

    To whom does Class Material (Papers, Test, Quizzes, etc.) Be

    Hi All, I have been taking a class recently, and for some reason or another, professor has chosen not to return neither assigned papers nor exams , although some homeworks have been returned. I brought it up and got a non-responsive answer to the effect of "we cannot just do that". I have...
  6. B

    Pass/No Pass Class at Berkeley Question

    Hi everyone, so I goofed. I ended up taking a pass/no pass one unit course at berkeley called the berkeley connect program for physics. The class was designed for physics majors to collaborate and talk about physics and do activities and such. So I ended up not passing the course and I'm...
  7. J

    Advice on Taking a 6 week General Chemistry 1 Class

    Hello, I'm currently enrolled in a 6 week General Chemistry 1 class that starts in January. The class meets about 5 hours a day Monday - Friday. I took the introductory chemistry course offered at my college this fall, and I was able to keep an A+ without much trouble. What can I do between now...
  8. rcgldr

    Create a custom stack class with a swap method?

    I've written a poly phase merge sort using 3 "stacks" in C++. The key part of the logic is to merge from containers A and B into container C. It's expected for A or B to go empty with lots of data remaining on B or A. To deal with this, when A or B go empty, the empty container is swapped with C...
  9. S

    Input/Output Voltage Class C RF Amp

    Hi all: I am a new member here with my first post. I am an adult learner trying to self-teach RF electronics. I have been working through David Rutledge's Electronics of Radio, while building the NorCal 40A transceiver. I am getting caught up on understanding the Class C RF power amplifier...
  10. D

    Finding a Class I Laser Pointer for a Science Fair Experiment

    I am doing some experimentation, for a science fair. And I want to make sure I the laser pointer I use is Class I (conceivably, I may change that, but any class of laser can be used to replicate results similar to the double slit experiment correct?). Can anyone direct me as to where I may be...
  11. C

    Programs Are these good starting points for Physics Major

    I am planning on transferring to a 4 year university to major in physics. I am currently overseas and must take classes online. After an almost endless grueling search I was able to find a school that offered an associates program online that I feel is in the right direction for what I intend to...
  12. B

    Fluid Powers: Determine what class lever I'm using

    I need help figuring out which formula to use to find what class lever I am using in a 10 ton log splitter circuit. The lever is 16 inches long and I am applying 100 pounds of force on the lever which is connected to a cylinder 5 inches in diameter, 24 inch stroke, and a 2 inch rod diameter. My...
  13. kq6up

    Josephson Effect Class Presentation

    I am working on a class presentation for my solid state physics class. I picked the topic of the Josephson effect. I would like to explain this phenomena in specific detail. However, the original paper and other material I have found quickly goes over my head as I have not been as far as...
  14. B

    News Working Class Kids Study Too Hard & Can't Get Elite Jobs

    http://www.washingtonpost.com/blogs/monkey-cage/wp/2015/09/23/why-are-working-class-kids-less-likely-to-get-elite-jobs-they-study-too-hard-at-college/
  15. Salvador

    Simple class A amplifier for a different reason

    Hi, so i have built some amps and power supplies before , even some real simple smps from a working circuit schematic but I have two high power npn transistors laying around and some old half baked circuit boards. I am interested can I make a real simple smps out of a 555 oscillator chip, and a...
  16. B

    How to Recover After Failing a Class in College?

    hey guys I am at the point in my college career where i am about to fail my first class (intro to circuits) and I am an ee major (prob a bad start to my major classes). I am probably going to take it again next semester but can people chime in on how to come back after failing a class; the...
  17. O

    Advice needed on which class to drop

    Hey guys! I am a 4th year Physics university student and I wanted some advice on what class(es) I should consider dropping. I am taking too many challenging courses and I really do need to drop one or two classes. Here are the list of classes that I have and a short description (and a personal...
  18. S

    Help finding an article for my physics class.

    Hello there I need help finding articles, journals, blogs, or newspapers relating to General Physics on the topic "One Dimensional Kinematics" P.S. Can you post some links or anything related to the topic Thank you.
  19. B

    Doing things differently than taught in class?

    Homework Statement [/b] hi everyone i just wanted to know if you guys think this is a wise decision to do throughout school. When my professors teach me a new subject/method to do something i usually disregard it and learn different methods producing the same answers most of the time sometimes...
  20. A

    Programs Is this overlap of class intended for stats major program?

    http://oi58.tinypic.com/2d85aix.jpg above is an url to the stats major program at my school. In red are the two classes that overlap. Is it likely that the overlap is intended, or a typo? Do universities ever allow such overlap (an emphasis class overlaps with a core class)? They changed it a...
  21. Lagraaaange

    Is taking an entire class on Mathematica worth it?

    How well do you need to know it if you're a grad student? Isn't it nothing more than an "calculator" in that you don't "make" anything, just use it to solve integrals and such? Edify me.
  22. Greg Bernhardt

    Post your 2015 fall class schedule

    Summer vacation is quickly wrapping up :nb) Time to post your 2015 fall class schedule and share with us what you're taking. Also post when your first day back is :smile:
  23. W

    MHB Uncovering the Number of Pupils in Class 6A

    Hi all I need help In the classes 6A and 6B, the total number of girls was 100% more than the total number of boys. The ratio of boys to girls in class 6A was 3 : 4 and the ratio of the boys to girls in class 6B was 1 : 6. If there were 8 more girls in class 6A than class 6B, find the number of...
  24. PhotonSSBM

    Transferring-should I retake this class?

    I'm going from a community college to a 4 year school-a good one-for physics. I'm starting in the spring which is awkward because I won't have many options for physics classes to take while I'm there other than an honors intro E&M course. I had a really watered down experience with my E&M course...
  25. B

    Where to Find High-Quality Class 4.6 Bolts?

    Hi all We have been sourcing Class 4.6 bolts of the following specifications : 1. Acceptable fastener standards: ISO4762 (Cap Heads), ISO4014 (Hexagonal Head), etc 2. Mechanical properties: ISO 898-1:2013 especially Table 2 and 3 with impact energy of at least 27 J tested at – 20 degC or...
  26. Scott Hill

    Is Texting for Class Questions a Good Idea?

    I had an interesting idea in a dream, and unlike most dream ideas it still made sense when I woke up. When I'm teaching a large lecture, I know there are students who are afraid to ask questions because it feels awkward being that one voice in a hundred. My idea is to provide some sort of...
  27. S

    MHB Class Project: Comparing 2 Population Means & Std Devs

    For our class project we are to collect some data from two populations, summarize it in table and graphical form, and conduct at least two different hypothesis tests that use different procedures and construct two different confidence intervals. I wanted to summarize my plan here and ask for...
  28. Semiavas

    Class 2 battery charger as a LED power supply?

    Hello, I'm planning to light up a tile chess board with 64 LEDs (blue and white) set between the tile squares, and I was wondering if this Class 2 Battery charger output: 12VDC 900mA, would work to power 16 parallel sets of 4 LEDs + 1 ohm 1/8W resistor and a SPST toggle switch? The current...
  29. Fawkes

    Do class F amplifiers work in linear mode or CCM?

    Hey guys, I am dealing with a slight issue here, I am learning the basics of class F amplifiers. but I am not able to understand that whether the transistor in class f operation works in linear mode or current control mode? Also i am dealing this problems at power levels of 10W to 25W scales, if...
  30. Wazkey

    Is Self-Studying More Efficient Than Class Lectures?

    Which one do you think that is more efficient? I think that lecturers, from the fact of being humans, commit more mistakes than books when they give information because they can forget to transmit important details. Books are written carefully in order to be easy to understand, what's said was...
  31. Silicon Waffle

    C# C# GetString method from Encoding's Unicode class

    I have a byte array (each character consumes 4 bytes) of size 64 for example, Now I decode it using byte[] bytes={'z','\0','\0','\0','ý','\0','\0','\0','ó','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0',...}; string...
  32. Allen Beers

    Want to teach an online class, but where can I do so?

    Hello, I would like to teach physics classes online, but do not know a good website. Can someone help me?
  33. MidgetDwarf

    Fall Class Schedule: Can I Handle 3 Hard Classes Plus Work?

    Not sure if this is a feasible schedule.for fall. Our fall semester is 14 weeks. Cal 3 (multivariable). I am taking this one with a hard professor (had her for 2 other classess/lots of work) Physics 102 (introduction to electricity and magnetism) again hard professor and I am average at...
  34. J

    Cartoon: Class difference in society

    I found this one interesting: http://nextshark.com/one-comic-perfectly-sums-up-class-differences-in-society/
  35. thankz

    Thermal runaway in class AB amp biasing

    I was watching this video and I have the question, if using a bjt as a diode what is the difference (thermal characteristics) from a regular diode, I ask this because on-semi makes bjt's with diodes in them specifically for class ab amps, is their any benefit besides less thermal lag?
  36. R

    Stuck on last part of class derivation (proof) K-G Eqn

    Mentor note: fixed formulas so they get displayed properly If we take the K-G eqn and the following term for the wave function $$( \partial^2 + \frac{m^{2}c^{2}}{\hbar^{2}})\Psi =0 \\\\\Psi = Re^{-i\omega t + i k_{i}x_{i}}$$We worked through to this ##\hbar \omega = \pm \sqrt{\hbar^{2}...
  37. Cygnus_A

    Brainstorming for a self-directed class project

    I need to choose a topic for a class project involving fluids and/or thermodynamics. It will essentially be a feasibility study on some proposed improvement to an engineering system (of my choosing). For instance, it could be an improvement to a power plant component that increases combustion...
  38. Jaco Viljoen

    Word problem x boys and y girls in a class

    Homework Statement There are x boys and y girls in a class(Class A) The girls outnumber the boys by 4. They join up with another class(Class B) in which there are twice as many boys as girls. Class B has 3 more boys and 5 less girls than class A. Which one of the following systems of equations...
  39. Togomori

    Discrete class D amplifier outputs low volume

    Hello everyone, I have a discrete class D project that I need help with but since I'm not an analog guy I got a problem. So far I got everything set up and the discrete class D works perfectly. But only at maximum of 6 volts otherwise the Transistor M3 gets really hot and burned, how do I solve...
  40. ZapperZ

    When Physics Class Demonstration Goes Wrong

    Ouch! http://metro.co.uk/2015/04/01/when-physics-lessons-go-wrong-they-go-very-wrong-5130079/ Anyone has any follow-up info on this? The YouTube video has a title that implied that the teacher lost his job for this. There's also confusion on the unfortunate person who got hit if he was a...
  41. ish512

    Schools Help with high school class selection

    Hello, I am a current freshman in HS. Sophomore year I am registered to double up in math (AP Stat/Precalc) and am taking Honors Programming, the prereq to AP Computer Science at my school. I am also taking Spanish 3 next year, as well, as I took Spanish 1 for HS credit last year in middle...
  42. F

    Doubt about abelian conjugacy class

    Homework Statement I'm kinda lost in the concept of conjugate elements in group theory. It says that a element "h conjugate by g" is: g-1×h×g = hg Then it says that if the group is abelian h = hg Homework Equations Abelian group: a*b = b*a The Attempt at a Solution I don't get why the fact...
  43. D

    How should I select a Calculus class?

    Well, I'm a Computer Science major, and I'm trying to figure out where in my area I should take Calculus over the Summer. Here are my issues. I've been taking most of my Classes at Richland College. However, they have policies I don't care for regarding Precalculus and higher classes. They...
  44. R

    Java How do I create an instance of a class in a method using Java?

    Homework Statement How do I create an instance of a class in a method? Homework Equations None The Attempt at a Solution I am a bit rusty whenever I think of instances. I always think of main method and objects when I see instance which gets me confused on what to do with the following...
  45. R

    Returning New Class Object in Abstract Class

    Homework Statement How can I return a new class object in an abstract class?Homework Equations None The Attempt at a Solution Suppose I have an abstract class named Animal (there are many other animal types that are made as classes). In this abstract class it has two methods...
  46. R

    Passing in a DAUNT Faction Type for Daunt Class

    Homework Statement Suppose I have an enum class named Faction and one of the constants is named DAUNT. I created a Daunt class of the enum but how can I pass in a DAUNT faction type in for Daunt?Homework Equations None The Attempt at a Solution public enum Faction { ALMIGHTY, AMBITION...
  47. N

    Struggling in Diff Eq Class: Advice for a Ditzy Freshman

    I'm a 2nd-semester freshman taking my first upper-level class (partial diff eq) and I'm really struggling. People always ask me what I'm doing in that class as a freshman and I answer by telling them I'm an idiot and a masochist, which is true. I've spent most of my time and energy on that class...
  48. J

    MHB UML class diagram for a system.

    Hi, I need to make a UML class diagram for a hotel billing system then implement it in Java. I'm quite new to UML so was just wondering a few things. The scenario is: 3 different types of customer - corporate, group and individual Corporate customers are local companies employees with a...
  49. B

    Explaining equation to stem class

    I am a volunteer teaching a STEM class once a week to a class of eight elementary students. From this page http://tbpmindset.org/modules/SECME/Rockets/Rockets_Calculations_Manual.pdf I use this equation for water flow out of a water rocket m = nozzle_area * discharge_coeficient * SQRT( 2 *...
  50. S

    What really are units? Why can we ignore them, like in class?

    All my life the approach has been as follows: In math class I learn the rules and almost always deal with purely numerical problems. In physics class I apply the things learned in math class but this time our quantities have units. Now, once the equation is well put and has dimensional...
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