大学有必要跟高中一样实行压力教育# Education - 教育学
j*y
1 楼
本人33岁，有爱心，好皮气，有带小孩子的经验， 希望能带从6个月到2岁半的小朋友
， 在我的家里， 我做饭也很好吃，以前带过的小朋友都很喜欢我做的菜，我这里有玩
具，书， 还有一个后花园让小朋友玩：）可以从六月中旬开始
有需要的请站内联系我
， 在我的家里， 我做饭也很好吃，以前带过的小朋友都很喜欢我做的菜，我这里有玩
具，书， 还有一个后花园让小朋友玩：）可以从六月中旬开始
有需要的请站内联系我
c*o
2 楼
rt
s*n
3 楼
比如说有个设备可以发射wifi信号，中间不经过任何中转（比如router之类的），然后
手机（智能机）就可以接收到这个设备通过wifi发送的数据。
在上面的例子里面，这个设备是AP吗？还是别的模式。
手机又是处于什么模式？记得手机一般就是连接router的wifi信号，这个设备不是wifi
也可以连接上吗？
谢谢！
手机（智能机）就可以接收到这个设备通过wifi发送的数据。
在上面的例子里面，这个设备是AP吗？还是别的模式。
手机又是处于什么模式？记得手机一般就是连接router的wifi信号，这个设备不是wifi
也可以连接上吗？
谢谢！
a*r
4 楼
请联系站内邮箱。谢谢.
z*8
5 楼
A perfectly competitive, profit maximizing firm has the production function
y = K^1/4+L^1/4
Let p be the price of the output y; v the price of capital K, and w the
price of labor L:
(a) Determine the firm's input demand, supply, and profit functions.
(b) Detemine the degree of homogeneity of the profit function in prices.
Does the result surprise you? why or why not?
y = K^1/4+L^1/4
Let p be the price of the output y; v the price of capital K, and w the
price of labor L:
(a) Determine the firm's input demand, supply, and profit functions.
(b) Detemine the degree of homogeneity of the profit function in prices.
Does the result surprise you? why or why not?
L*l
6 楼
现在的情况是，很多大学生都不再像高中的时候那样爱学习了，尤其是现在有电脑，有
ipad，有智能手机，上网这么方便，玩游戏也越来越方便了，很多大学生不打算考研的
，就是单纯的混个毕业证，每天沉迷游戏，放纵自己，甚至考试挂科的都很多。
既然能考上大学，就说明高中的时候不是很差的学生，最起码是中上等的，高中的时候
都能做到刻苦努力学习，到了大学为什么就做不到了呢。
究其原因，就是高中的时候压力很大，面临着高考，一考定乾坤。学生们被高中学校里
的教务主任和老师们紧紧的盯着学习，老师也不希望任何一个学生掉队，但凡是还有点
希望能考上大学或者大专的，老师和家长都不会放弃，一起努力的严加管教。
然而一旦上了大学，就彻底的松懈了，家长也不管了，认为反正上了大学了，毕业证不
成问题了，有个文凭了，至于考不考研究生那就是孩子自己的事情了。
大学的老师也不会再像高中老师那样紧紧地盯着孩子学习了，对于学习成绩也不再那么
执着了，只要及格了能够不挂科就行了。
So，是不是大学也有必要跟高中一样实行压力教育方式呢，很多大学生虽然20岁左右了
，但是心智并不成熟，还是个孩子，无法很好的自控。
ipad，有智能手机，上网这么方便，玩游戏也越来越方便了，很多大学生不打算考研的
，就是单纯的混个毕业证，每天沉迷游戏，放纵自己，甚至考试挂科的都很多。
既然能考上大学，就说明高中的时候不是很差的学生，最起码是中上等的，高中的时候
都能做到刻苦努力学习，到了大学为什么就做不到了呢。
究其原因，就是高中的时候压力很大，面临着高考，一考定乾坤。学生们被高中学校里
的教务主任和老师们紧紧的盯着学习，老师也不希望任何一个学生掉队，但凡是还有点
希望能考上大学或者大专的，老师和家长都不会放弃，一起努力的严加管教。
然而一旦上了大学，就彻底的松懈了，家长也不管了，认为反正上了大学了，毕业证不
成问题了，有个文凭了，至于考不考研究生那就是孩子自己的事情了。
大学的老师也不会再像高中老师那样紧紧地盯着孩子学习了，对于学习成绩也不再那么
执着了，只要及格了能够不挂科就行了。
So，是不是大学也有必要跟高中一样实行压力教育方式呢，很多大学生虽然20岁左右了
，但是心智并不成熟，还是个孩子，无法很好的自控。
s*n
7 楼
没人知道吗？
a*r
8 楼
ding
d*g
9 楼
Set up a lagrangian, derive first order conditions, set the first order
conditions to zero and solve. Should be fairly straight forward. Good luck.
conditions to zero and solve. Should be fairly straight forward. Good luck.
M*j
10 楼
毫无压力的大学，学生们一个比一个懒惰放纵。
L*t
11 楼
It's Wifi's Ad-hoc mode.
wifi
【在 s****n 的大作中提到】
: 比如说有个设备可以发射wifi信号，中间不经过任何中转（比如router之类的），然后
: 手机（智能机）就可以接收到这个设备通过wifi发送的数据。
: 在上面的例子里面，这个设备是AP吗？还是别的模式。
: 手机又是处于什么模式？记得手机一般就是连接router的wifi信号，这个设备不是wifi
: 也可以连接上吗？
: 谢谢！
wifi
【在 s****n 的大作中提到】
: 比如说有个设备可以发射wifi信号，中间不经过任何中转（比如router之类的），然后
: 手机（智能机）就可以接收到这个设备通过wifi发送的数据。
: 在上面的例子里面，这个设备是AP吗？还是别的模式。
: 手机又是处于什么模式？记得手机一般就是连接router的wifi信号，这个设备不是wifi
: 也可以连接上吗？
: 谢谢！
z*8
12 楼
十分感谢你的回答。
大哥还有道题，你忙就算了吧，或者随便说一下思路。
A consumer's utility function is
U(x; y) = x^a+ y^a
where a > 0:
(a) Determine limits on a which guarantee that you can appropriately use a
Lagrangian to find the consumer's demand functions. In other words, for what
(minimal) restrictions on is the second order sufficient condition for the
consumer's constrained utility maximization problem satisfied?
【在 d*****g 的大作中提到】
: Set up a lagrangian, derive first order conditions, set the first order
: conditions to zero and solve. Should be fairly straight forward. Good luck.
大哥还有道题，你忙就算了吧，或者随便说一下思路。
A consumer's utility function is
U(x; y) = x^a+ y^a
where a > 0:
(a) Determine limits on a which guarantee that you can appropriately use a
Lagrangian to find the consumer's demand functions. In other words, for what
(minimal) restrictions on is the second order sufficient condition for the
consumer's constrained utility maximization problem satisfied?
【在 d*****g 的大作中提到】
: Set up a lagrangian, derive first order conditions, set the first order
: conditions to zero and solve. Should be fairly straight forward. Good luck.
s*n
13 楼
thanks!
【在 L******t 的大作中提到】
: It's Wifi's Ad-hoc mode.
:
: wifi
【在 L******t 的大作中提到】
: It's Wifi's Ad-hoc mode.
:
: wifi
z*8
14 楼
这里面appropriately use Lagrangian什么意思？用Lagrangian需要啥条件在这道题里
面？
面？
f*8
15 楼
现在的手机有wifi direct模式，两个手机
直接建立无线连接，速度和wifi类似，比如我的galaxy note。
和传统ad hoc的差别，这里谈到了：
Wi-Fi Direct: What You Need To Know
http://www.pcmag.com/article2/0,2817,2371413,00.asp
It is official: Wi-Fi Direct is here, and the nonprofit Wi-Fi Alliance is
now certifying products as Wi-Fi Certified Wi-Fi Direct. Alliance members
include Apple, Cisco, Intel, and other major tech vendors.
Wi-Fi Direct is an emerging technology meant to meet the growing demand for
easy, portable wireless network connectivity. It's peer-to-peer wireless
networking, which means that devices such as notebooks, tablets, cameras,
and printers can "find" one another and establish wireless connectivity
without need of the presence of a wireless router, an access point, or a
hotspot.
How is it used? Imagine syncing your mobile device or laptop to a printer,
digital photo frame, or TV without connecting to a Wi-Fi network. No worry
about SSIDs or passwords to access them.
There are a few key features to know about Wi-Fi Direct:
•Wi-Fi Direct enlists a technology known as "Soft AP": Soft AP, in a
nutshell, is software-based access point functionality built into Wi-Fi
Direct certified devices. These devices are capable of routing and directing
network traffic just like access points and routers.
•Wi-Fi Direct is expected to provide superior connectivity over
Bluetooth: Wi-Fi Direct is not just an alternative to Bluetooth connectivity
; it delivers a better connection and has greater range than Bluetooth.
•Legacy Wi-Fi devices are supported: If you have one Wi-Fi Direct
certified device; that device can connect with 802.11n as well as b and g
devices.
•Wi-Fi Direct has built-in security: WPA2 is bundled into this
wireless standard and unlike traditional wireless routers and access points,
cannot be disabled.
•Applications are a driving factor of this technology: Portable
devices will be able to connect to the myriad of applications available
without need to connect to a Wi-Fi network.
•Wi-Fi Direct is not the same as ad-hoc networking: The most
significant difference between traditional ad-hoc wireless networking (
traditional peer-to-peer networking) and Wi-Fi Direct is security. In
Windows ad-hoc networks, the highest level of security supported is WEP in
mixed client environments (Windows 7 will support WPA2 provided all adapters
support it, as well). Wi-Fi Direct, as mentioned, supports WPA2. Another
difference, Wi-Fi Direct devices can also simultaneously connect to existing
wireless networks. More granular control and better discovery of devices
also differentiate Wi-Fi Direct from ad-hoc networking.
•Wi-Fi Direct is not meant to replace traditional wireless networks:
Wi-Fi Direct devices may not provide the overall range of a wireless router
or AP. There's more flexibility with APs and routers, as they can be placed
strategically to provide optimized signal strength. Also, there are security
considerations with Wi-Fi Direct; there is a good chance that IT
departments with corporate wireless networks may have issues with
controlling Wi-Fi Direct devices.
•There are products already Wi-Fi Direct certified: Wi-Fi Direct
certified products include Atheros XSPAN® Dual-band 802.11n PCIe Mini
Card (AR928x); Broadcom BCM43224; Intel® Centrino® Advanced-N 6200
internal PCIe half mini card; Ralink MIMObility 802.11n Reference Design ;
Realtek RTL8192CE-VA4 HM92C00 PCIe mini card. In addition, Cisco and Netgear
are rolling out Wi-Fi direct networking devices.
wifi
【在 s****n 的大作中提到】
: 比如说有个设备可以发射wifi信号，中间不经过任何中转（比如router之类的），然后
: 手机（智能机）就可以接收到这个设备通过wifi发送的数据。
: 在上面的例子里面，这个设备是AP吗？还是别的模式。
: 手机又是处于什么模式？记得手机一般就是连接router的wifi信号，这个设备不是wifi
: 也可以连接上吗？
: 谢谢！
直接建立无线连接，速度和wifi类似，比如我的galaxy note。
和传统ad hoc的差别，这里谈到了：
Wi-Fi Direct: What You Need To Know
http://www.pcmag.com/article2/0,2817,2371413,00.asp
It is official: Wi-Fi Direct is here, and the nonprofit Wi-Fi Alliance is
now certifying products as Wi-Fi Certified Wi-Fi Direct. Alliance members
include Apple, Cisco, Intel, and other major tech vendors.
Wi-Fi Direct is an emerging technology meant to meet the growing demand for
easy, portable wireless network connectivity. It's peer-to-peer wireless
networking, which means that devices such as notebooks, tablets, cameras,
and printers can "find" one another and establish wireless connectivity
without need of the presence of a wireless router, an access point, or a
hotspot.
How is it used? Imagine syncing your mobile device or laptop to a printer,
digital photo frame, or TV without connecting to a Wi-Fi network. No worry
about SSIDs or passwords to access them.
There are a few key features to know about Wi-Fi Direct:
•Wi-Fi Direct enlists a technology known as "Soft AP": Soft AP, in a
nutshell, is software-based access point functionality built into Wi-Fi
Direct certified devices. These devices are capable of routing and directing
network traffic just like access points and routers.
•Wi-Fi Direct is expected to provide superior connectivity over
Bluetooth: Wi-Fi Direct is not just an alternative to Bluetooth connectivity
; it delivers a better connection and has greater range than Bluetooth.
•Legacy Wi-Fi devices are supported: If you have one Wi-Fi Direct
certified device; that device can connect with 802.11n as well as b and g
devices.
•Wi-Fi Direct has built-in security: WPA2 is bundled into this
wireless standard and unlike traditional wireless routers and access points,
cannot be disabled.
•Applications are a driving factor of this technology: Portable
devices will be able to connect to the myriad of applications available
without need to connect to a Wi-Fi network.
•Wi-Fi Direct is not the same as ad-hoc networking: The most
significant difference between traditional ad-hoc wireless networking (
traditional peer-to-peer networking) and Wi-Fi Direct is security. In
Windows ad-hoc networks, the highest level of security supported is WEP in
mixed client environments (Windows 7 will support WPA2 provided all adapters
support it, as well). Wi-Fi Direct, as mentioned, supports WPA2. Another
difference, Wi-Fi Direct devices can also simultaneously connect to existing
wireless networks. More granular control and better discovery of devices
also differentiate Wi-Fi Direct from ad-hoc networking.
•Wi-Fi Direct is not meant to replace traditional wireless networks:
Wi-Fi Direct devices may not provide the overall range of a wireless router
or AP. There's more flexibility with APs and routers, as they can be placed
strategically to provide optimized signal strength. Also, there are security
considerations with Wi-Fi Direct; there is a good chance that IT
departments with corporate wireless networks may have issues with
controlling Wi-Fi Direct devices.
•There are products already Wi-Fi Direct certified: Wi-Fi Direct
certified products include Atheros XSPAN® Dual-band 802.11n PCIe Mini
Card (AR928x); Broadcom BCM43224; Intel® Centrino® Advanced-N 6200
internal PCIe half mini card; Ralink MIMObility 802.11n Reference Design ;
Realtek RTL8192CE-VA4 HM92C00 PCIe mini card. In addition, Cisco and Netgear
are rolling out Wi-Fi direct networking devices.
wifi
【在 s****n 的大作中提到】
: 比如说有个设备可以发射wifi信号，中间不经过任何中转（比如router之类的），然后
: 手机（智能机）就可以接收到这个设备通过wifi发送的数据。
: 在上面的例子里面，这个设备是AP吗？还是别的模式。
: 手机又是处于什么模式？记得手机一般就是连接router的wifi信号，这个设备不是wifi
: 也可以连接上吗？
: 谢谢！
d*g
16 楼
Lagrangian requires convexity. In this case it means a should be less than 1
. When a equals to w, you have perfect substitute and will have corner
solutions. Is this part of your econ homework?
. When a equals to w, you have perfect substitute and will have corner
solutions. Is this part of your econ homework?
z*8
17 楼
would you be my tutor?
1
【在 d*****g 的大作中提到】
: Lagrangian requires convexity. In this case it means a should be less than 1
: . When a equals to w, you have perfect substitute and will have corner
: solutions. Is this part of your econ homework?
1
【在 d*****g 的大作中提到】
: Lagrangian requires convexity. In this case it means a should be less than 1
: . When a equals to w, you have perfect substitute and will have corner
: solutions. Is this part of your econ homework?
d*g
18 楼
I appreciate the offer, but unfortunately I am pretty busy and my time is
pretty expensive. I am sure you can find a good enough tutor at a much
cheaper price. Of course, (and I mean absolutely no offense by saying this,
simply stating a fact), if you are confident enough that you can make me an
offer that I can't refuse, feel free to message me. Good luck and thank you
again.
【在 z****8 的大作中提到】
: would you be my tutor?
:
: 1
pretty expensive. I am sure you can find a good enough tutor at a much
cheaper price. Of course, (and I mean absolutely no offense by saying this,
simply stating a fact), if you are confident enough that you can make me an
offer that I can't refuse, feel free to message me. Good luck and thank you
again.
【在 z****8 的大作中提到】
: would you be my tutor?
:
: 1
z*8
19 楼
A perfectly competitive, profit maximizing firm has the production function
y = K^1/4+L^1/4
Let p be the price of the output y; v the price of capital K, and w the
price of labor L:
(a) Determine the firm's input demand, supply, and profit functions.
(b) Detemine the degree of homogeneity of the profit function in prices.
Does the result surprise you? why or why not?
y = K^1/4+L^1/4
Let p be the price of the output y; v the price of capital K, and w the
price of labor L:
(a) Determine the firm's input demand, supply, and profit functions.
(b) Detemine the degree of homogeneity of the profit function in prices.
Does the result surprise you? why or why not?
d*g
20 楼
Set up a lagrangian, derive first order conditions, set the first order
conditions to zero and solve. Should be fairly straight forward. Good luck.
conditions to zero and solve. Should be fairly straight forward. Good luck.
z*8
21 楼
十分感谢你的回答。
大哥还有道题，你忙就算了吧，或者随便说一下思路。
A consumer's utility function is
U(x; y) = x^a+ y^a
where a > 0:
(a) Determine limits on a which guarantee that you can appropriately use a
Lagrangian to find the consumer's demand functions. In other words, for what
(minimal) restrictions on is the second order sufficient condition for the
consumer's constrained utility maximization problem satisfied?
【在 d*****g 的大作中提到】
: Set up a lagrangian, derive first order conditions, set the first order
: conditions to zero and solve. Should be fairly straight forward. Good luck.
大哥还有道题，你忙就算了吧，或者随便说一下思路。
A consumer's utility function is
U(x; y) = x^a+ y^a
where a > 0:
(a) Determine limits on a which guarantee that you can appropriately use a
Lagrangian to find the consumer's demand functions. In other words, for what
(minimal) restrictions on is the second order sufficient condition for the
consumer's constrained utility maximization problem satisfied?
【在 d*****g 的大作中提到】
: Set up a lagrangian, derive first order conditions, set the first order
: conditions to zero and solve. Should be fairly straight forward. Good luck.
z*8
22 楼
这里面appropriately use Lagrangian什么意思？用Lagrangian需要啥条件在这道题里
面？
面？
d*g
23 楼
Lagrangian requires convexity. In this case it means a should be less than 1
. When a equals to w, you have perfect substitute and will have corner
solutions. Is this part of your econ homework?
. When a equals to w, you have perfect substitute and will have corner
solutions. Is this part of your econ homework?
z*8
24 楼
would you be my tutor?
1
【在 d*****g 的大作中提到】
: Lagrangian requires convexity. In this case it means a should be less than 1
: . When a equals to w, you have perfect substitute and will have corner
: solutions. Is this part of your econ homework?
1
【在 d*****g 的大作中提到】
: Lagrangian requires convexity. In this case it means a should be less than 1
: . When a equals to w, you have perfect substitute and will have corner
: solutions. Is this part of your econ homework?
d*g
25 楼
I appreciate the offer, but unfortunately I am pretty busy and my time is
pretty expensive. I am sure you can find a good enough tutor at a much
cheaper price. Of course, (and I mean absolutely no offense by saying this,
simply stating a fact), if you are confident enough that you can make me an
offer that I can't refuse, feel free to message me. Good luck and thank you
again.
【在 z****8 的大作中提到】
: would you be my tutor?
:
: 1
pretty expensive. I am sure you can find a good enough tutor at a much
cheaper price. Of course, (and I mean absolutely no offense by saying this,
simply stating a fact), if you are confident enough that you can make me an
offer that I can't refuse, feel free to message me. Good luck and thank you
again.
【在 z****8 的大作中提到】
: would you be my tutor?
:
: 1
z*8
26 楼
T_T
,
an
you
【在 d*****g 的大作中提到】
: I appreciate the offer, but unfortunately I am pretty busy and my time is
: pretty expensive. I am sure you can find a good enough tutor at a much
: cheaper price. Of course, (and I mean absolutely no offense by saying this,
: simply stating a fact), if you are confident enough that you can make me an
: offer that I can't refuse, feel free to message me. Good luck and thank you
: again.
,
an
you
【在 d*****g 的大作中提到】
: I appreciate the offer, but unfortunately I am pretty busy and my time is
: pretty expensive. I am sure you can find a good enough tutor at a much
: cheaper price. Of course, (and I mean absolutely no offense by saying this,
: simply stating a fact), if you are confident enough that you can make me an
: offer that I can't refuse, feel free to message me. Good luck and thank you
: again.
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