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上門補習<br />即私人補習,有不少家長認為子女功課不好,或者因工作問題希望找人照顧卻沒有能力聘請外傭,就聘請了一些導師上門補習,填補在「子女放學後」及「家長下班前」的時間空間,以一對一的模式進行。也有一些家長認為一對一教育是令學生吸收最多的,所以子女到達高年級的時候仍然選擇這種補習模式。 <br />某些上門補習中介 公司經常於不同媒體賣廣告,每月單是廣告費就花下數十萬,如買下RoadShow和牛奶公司旗下700店的廣告板獨市廣告、大型廣告牌、小巴廣告等,令其他曾受極一時但沒有巨額投資於廣告的 [http://url.ie/15r9u 上門補習] 中介公司,已日漸淘汰和沒落。 <br />另一方面,由於私人補習賺取的時薪相對高昂,有不少高中及大學生希望賺取零用錢,也會加入這些上門導師行列。 <br />小型補習社<br />在小學至初中層面中,很多時候小型補習社也發揮了 [https://v.gd/y2YgIz 上門補習] 「填時間」的作用。由於香港的小型補習社多為小本經營,不少人視之為當老闆的捷徑發財而漠視教育理想,補習教師體罰學生﹙如以鐵尺打學生,以為家長「嚴格」教導子女作招倈﹚以得到補習「佳績」,更有心術不正者非禮女學生。但一般而言,小型補習社師資較 [https://www.pinterest.com/hussainriley/ 上門補習] 有保證。至高中時期,學生一般較懂得自律,不用家長操心,補習社就主力教授及重溫課堂上不足的地方,同時操練舊試題。 <br />和大型補習社不同的,是小型補習社每班一般不多於20人,有的採取小班教學,這是不少學生及家長所取的。此外,小型補習社多為小本經營,並非連鎖式經營。即使開設分校,也只會位於舊校附近,用作方便開設更多班,而非主動地拓展業務。 <br />值得一提的是,不少大型補習社導師於成名前均曾於小型補習社任教。 <br /><br />連鎖式補習社<br /> <br /><br />英皇教育在九龍彌敦道的大廣告板<br /> <br /><br />遵理學校的大型戶外海報<br />連鎖式補習社的覆蓋性高,分校遍佈港九新界,大多位於市中心,毗鄰港鐵站。 <br />香港目前的補習市場有三大連鎖式補習社集團:香港教育國際(現代教育)(港交所:01082.HK)、精英匯集團 (遵理學校)(港交所:01775.HK) 和英皇教育,前兩家已經上市。 <br />連鎖式補習社主要以「考試導向」的形式教授該科知識︰提供考試答題技巧和講解學校課堂上沒有教授的考試內容,填補學校教育不足的地方,並同時給予歷屆試題供學生操練。 <br />大部份的課堂,尤其遠離灣仔區,油尖旺區,荃灣區,沙田區及觀塘區的分校,都會以錄影班(Video班)為主要上課模式,即該補習教師預先在現場班 (Live班)上課時拍攝講課的片段,然後存放於雲端,各分校需要上課時即可存取,減輕導師的工作壓力,但學生就失去了在課後直接向該教師詢問課堂不明白之處的機會。大型補習社會將分校內數個課室之間的牆壁拆除,再配以玻璃分隔(行內稱拖房或聯播房),部分收生率較高的頂級名師的Live班更會在同一分校內沒有與主房聯通的課室同步播放(行內稱聯播),讓數個課室的學生能夠同時上同一名導師的課堂。 <br />遵理學校更推出網上取籌服務,讓部分頂級名師的Live班學生節省排隊時間。 <br />現時有不少補習導師會在社交網站提供「免費問書服務」,解答在課後的學生疑難。 <br />此外,這些補習社除了提供日常課堂外,也會提供與考試有關的服務,例如舉辦模擬試,讓學生了解在應考公開試前的不足和熟習考試模式。又例如會舉辦說話訓練,讓學生培養說話技巧。 <br /><br />流動補習社<br />流動補習社出現的原因,是由於香港舖租不斷飆升,而且部分學生的居住環境擠迫,難以提供補習空間,為了節省成本,有些補習老師在麥當勞、大家樂、星巴克等快餐店或咖啡室為學生補習。有老師指揮學生霸佔店內五、六個座位,實施一人一枱做功課,有時會引來食客注目、不滿,甚至出口指摘。<br />專門式補習社<br />除了連鎖式補習社外,香港也有一些補習社是針對個別科目教授,其宣傳方法及經營手法十分貼近連鎖式補習社。 <br />據香港中文大學《大學線月刊》報道,指出大學課程獨特,「大專生補習班」可協助大專生適應大專課程。 <br />盛行原因<br />補習班流行的原因,主要是因為香港從小學至專上教育前的學制下,都普遍實行以公開考試的成績作為主導的應試教育。除直接影響大學收生(JUPAS)的香港中學文憑,舊制度下的學制也有直接影響升讀中六(預科)及中一的呈分試及香港學業能力測驗(小學學能測驗)。無論是哪個考試,學生的公開考試成績直接地影響能接受的教育水平和類型,為在該等考試取得較好準備,補習成為他們其中一個多數的選擇。另外,有不少學生因為不適應/為了提早適應升中課程的變化,特別是英文和中文(廣東話)教學的差異而補習,兩者皆造就了香港的補習風氣。 <br />有論者認為,現時補習則是市場導向所帶動,屬競爭性的拔尖教育,加上家長與學生抱着「有病醫病,無病補身」的心態,務求以金錢換取成績,致令補習產業日趨蓬勃[11]。 <br />香港的教育制度以成績決定一切,公開考試成績幾乎直接決定學生的前途<br />希望能以最短時間完成課程<br />補習班提供實用的應試技巧<br />筆記精簡而且包含學校教科書缺乏的重點,也有評卷準則、外國試題、「考試陷阱」等<br />認為補習教師的教學方式比日校教師更佳或更「考試導向」<br />日校教師的教學質素參差<br />預測試題準確<br />羊群心理,「人補我補」
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<br />In in vitro human skin studies, resorcinol was evaluated from a consultant hair dye formulation that contained 0. However, it ought to be considered that acned skin could also be damaged due both to scratching or to the blemishes themselves.<br /><br />Thyroid glands from all surviving F 0 dad and mom had been examined microscopically, and brain measurements have been carried out on all uncovered F 1 pups and those F 1 pups selected for behavioural testing. There had been no important sex variations. In females, a higher proportion was excreted as sulfate conjugate, whereas males excreted the next proportion of a diconjugate each sulfate and glucuronide teams. From these data, the authors concluded that male rats have a better capability for glucuronidation than females.<br /><br /><h2></h2><br />In , medical examinations see above and thyroid assessments were performed with of presumably energetic plant workers males and 33 ladies. Flaked resorcinol caused no perceptible to moderate irritation intact pores and skin or no perceptible necrosis abraded pores and skin.<br />Furthermore, chronic research with fish and Daphnia had been performed. For the toxicity to aquatic vegetation, no guideline study is on the market. However, considering the out there studies for toxicity to aquatic crops, the NOEC for algae could be assumed to be higher than that for Daphnia magna. Exposure to resorcinol by means of peeling agents presents an acute publicity state of affairs the place the person is uncovered to a high concentration 7. Acute effects have been described underneath these circumstances.<br />Two lengthy-time period research with Swiss mice or NZW rabbits, where the animals were handled with zero. In an in vitro. In an investigation in three human volunteers using situations similar to those used in hair dyeing, 14 C-ring-labelled 1. This suggests that solely a small amount of resorcinol penetrates the skin during the actual strategy of hair colouring.<br />Although thyroid results are a significant end-level in both human case-research and animal research, there's a lack of consistency within the results in the animal research. Resorcinol brought on no adverse results in several replica and developmental toxicity studies in rats and rabbits. Resorcinol just isn't considered to be genotoxic.<br /><br />There were no published animal research displaying thyroidal results with a dose—response relationship that might be used for a tolerable consumption. In the body of a full life cycle toxicity test OECD TG , Lima noticed no opposed effects after 48 h of publicity at the highest concentration examined, zero. Furthermore, Cronin et al. The fish and pond snails have been placed immediately into the aquaria, whereas the remaining 5 species were segregated in several baskets and suspended in the aquaria. The only investigation into this end-level is that from the dose range-finding study reported in sections eight.<br /><br /><h3></h3><br />Animals that died showed hyperaemia and distension of stomach and gut, while there have been no gross lesions at necropsy in survivors Flickinger, In one other study with CFY rats. Most of the studies are of sufficient quality and acceptable for danger characterization purposes.<br />The microscopic examination of the thyroid gave minimal adjustments follicular hyperplasia , which have been statistically not vital between controls and particular person dose teams RTF, In vitro studies have been performed to assess the effects of resorcinol on thyroid operate. In excessive-dose teams, a decrease in physique weight and decreased survival had been famous. Owing to concern concerning the thyroid effects of resorcinol, which have been proven in human research to occur at high doses, this finish-level specifically has been the purpose of focus in several studies. In most of the older research, the consequences of resorcinol publicity on the thyroid gland are conflicting. It has been suggested that thyroid effects seem to be dependent on an administration route that permits for continued systemic exposure e.<br /><br /><h1></h1><br />These figures agree nicely with the above publicity estimate based on the Yeung et al.<br />In [https://www.pinterest.com/gludmccullough/ https://www.pinterest.com/gludmccullough/] , male F rats have been treated with three intraperitoneal injections of 3-methyl-. Based on the research of Yeung et al.

Revision as of 20:07, 23 January 2020


In in vitro human skin studies, resorcinol was evaluated from a consultant hair dye formulation that contained 0. However, it ought to be considered that acned skin could also be damaged due both to scratching or to the blemishes themselves.

Thyroid glands from all surviving F 0 dad and mom had been examined microscopically, and brain measurements have been carried out on all uncovered F 1 pups and those F 1 pups selected for behavioural testing. There had been no important sex variations. In females, a higher proportion was excreted as sulfate conjugate, whereas males excreted the next proportion of a diconjugate each sulfate and glucuronide teams. From these data, the authors concluded that male rats have a better capability for glucuronidation than females.


In , medical examinations see above and thyroid assessments were performed with of presumably energetic plant workers males and 33 ladies. Flaked resorcinol caused no perceptible to moderate irritation intact pores and skin or no perceptible necrosis abraded pores and skin.
Furthermore, chronic research with fish and Daphnia had been performed. For the toxicity to aquatic vegetation, no guideline study is on the market. However, considering the out there studies for toxicity to aquatic crops, the NOEC for algae could be assumed to be higher than that for Daphnia magna. Exposure to resorcinol by means of peeling agents presents an acute publicity state of affairs the place the person is uncovered to a high concentration 7. Acute effects have been described underneath these circumstances.
Two lengthy-time period research with Swiss mice or NZW rabbits, where the animals were handled with zero. In an in vitro. In an investigation in three human volunteers using situations similar to those used in hair dyeing, 14 C-ring-labelled 1. This suggests that solely a small amount of resorcinol penetrates the skin during the actual strategy of hair colouring.
Although thyroid results are a significant end-level in both human case-research and animal research, there's a lack of consistency within the results in the animal research. Resorcinol brought on no adverse results in several replica and developmental toxicity studies in rats and rabbits. Resorcinol just isn't considered to be genotoxic.

There were no published animal research displaying thyroidal results with a dose—response relationship that might be used for a tolerable consumption. In the body of a full life cycle toxicity test OECD TG , Lima noticed no opposed effects after 48 h of publicity at the highest concentration examined, zero. Furthermore, Cronin et al. The fish and pond snails have been placed immediately into the aquaria, whereas the remaining 5 species were segregated in several baskets and suspended in the aquaria. The only investigation into this end-level is that from the dose range-finding study reported in sections eight.


Animals that died showed hyperaemia and distension of stomach and gut, while there have been no gross lesions at necropsy in survivors Flickinger, In one other study with CFY rats. Most of the studies are of sufficient quality and acceptable for danger characterization purposes.
The microscopic examination of the thyroid gave minimal adjustments follicular hyperplasia , which have been statistically not vital between controls and particular person dose teams RTF, In vitro studies have been performed to assess the effects of resorcinol on thyroid operate. In excessive-dose teams, a decrease in physique weight and decreased survival had been famous. Owing to concern concerning the thyroid effects of resorcinol, which have been proven in human research to occur at high doses, this finish-level specifically has been the purpose of focus in several studies. In most of the older research, the consequences of resorcinol publicity on the thyroid gland are conflicting. It has been suggested that thyroid effects seem to be dependent on an administration route that permits for continued systemic exposure e.


These figures agree nicely with the above publicity estimate based on the Yeung et al.
In https://www.pinterest.com/gludmccullough/ , male F rats have been treated with three intraperitoneal injections of 3-methyl-. Based on the research of Yeung et al.