OcelotStudy @ocelotslime - Tumblr Blog

24.10.19

I’ve been working on my kidneys summary for hours long. It was a huge chapter, but I made it through. My teacher wants these mailed, but I asked if I could hand it in on paper too. Luckily, she said I could. I’m going to relax a bit now with a book by my side and then sleep. New school day tomorrow.

#nursingstudent studyblr newstudyblr studynotes notes studying nursing medicalknowledge kidneys

Update on school and life

Hello everyone,

I haven’t been on this for a huge time. And I’m about to tell you why.

The nursing course is amazing and I love learning things about the body and way to help people. But I’ve been so infested that I literally got no spare time. At all... Blogging is hard, keeping up with my instagram is already hard. I’ll try my best to keep up with you guys again and mark my word for it. However I’m not sure how long I can keep that for.

Quick update!

Hey my fellow students and learners!

As first I want to announce that I changed studies. I’m no longer studying environment & ecology. Next school year I’m moving to Nursing, in the hope I have found a study I love.

Now to my language studies. I still want to study Korean, Spanish, French and Thai. My huge priority right now is Spanish and French, because of work and family. My boyfriend’s family is Mexican and I noticed their English is as broken as my Spanish! So I want to be nice and study the beauty of Spanish. In hope, I can talk to my boyfriend’s sister and talk about Kpop all day long, jajajaja.

French is also a priority because lately a lot of French people has been stopping by at Subway, where I work. But that will be my second priority. I feel like I will exhaust myself if I study two languages at the same time. So Spanish is my n.1 priority.

~~ How will I study Spanish? ~~

I will be using Spanishpod101, Duolingo, and Quizlet for the Flashcards. I will also learn 1 song each week which will focus on my Pronunciation and I will be also translating it. I would also like to watch some things in Spanish with the Spanish subtitles but I’m unsure what yet.

I might do study with me’s and vlogs about my Spanish language exploration.

#update #back from the dead #langblr #spanish langblr #español langblr #español #studyblr

Lately I have been writing my notes out on the pc in a Cornell Note document. I feel like this helps me out more since my hand is getting worse again. #studyaccount #studyblr #notes #studygram #studymotivation #studymode https://www.instagram.com/p/Bt0feHIhwsx/?utm_source=ig_tumblr_share&igshid=66zmgmipho5n

#studyaccount #studyblr #notes #studygram #studymotivation #studymode

Here is my February spread for my book bujo💕 not the prettiest, and the stats are based of someone else's bujo page. I wanted to try that version out. #studyblr #bulletjournal #bookstagram #studyaccount #books📚 #bujo #studygram #dutchstudyblr #ecologystudent https://www.instagram.com/p/BtV6vkoBgbY/?utm_source=ig_tumblr_share&igshid=106z78xjwx0kp

#studyblr #bulletjournal #bookstagram #studyaccount #books📚#bujo #studygram #dutchstudyblr #ecologystudent

I read 5 books this month! And the book in highlight is "The Shock of The Fall" by Nathan Filer. This contemporary book is amazing and it shows how our main character deals with grief and guilt. I definitely recommend this book. #books📚 #studyaccount #reading #studygram #bookstagram #bookphotography https://www.instagram.com/p/BtStjJIhZRX/?utm_source=ig_tumblr_share&igshid=16wdgil30j5x0

#books📚#studyaccount #reading #studygram #bookstagram #bookphotography

Physics was fun? However it looked more like chemistry. Also tomorrow I got a chemistry test. Good luck me. #studyaccount #studyblr #studygram #studymotivation #studying https://www.instagram.com/p/Bs_WBNih8_t/?utm_source=ig_tumblr_share&igshid=1wko1091845rm

#studyaccount #studyblr #studygram #studymotivation #studying

It's almost time for my maths test. I'm still struggling with writing but it'll be okay. #studyaccount #planneraddict #notes #maths #studygram #studymotivation #studyblr (at 's-Hertogenbosch) https://www.instagram.com/p/BrmoAuAhQN_/?utm_source=ig_tumblr_share&igshid=hy9hiccxaj46

#studyaccount #planneraddict #notes #maths #studygram #studymotivation #studyblr

stimman3000

iampikachuhearmeroar

god this was so pleasing to watch

rayslablr

studyblr introduction

hi, i’m oskar but you can call me kar or ray if you prefer. i had been in tumblr for quite a while but today i deleted my account so i can focused on this new acc dedicated to studyblr and productivity post. i’m a bit nervous and excited to make this big step in my life.

about me:

age: 21 y/o

pronoun: he/him

nacionality: i’m from El Salvador, soon i’ll move to Boston, US

native language: spanish is my native language but i can speak english

zodiac: capricorn

other: i’m vegetarian

things i like:

reading

small things/details

i love animals

learning new things

cloudy days

interests:

languages

communications

astrology

coding

lgbt+ topics

feminism

human and animal rights

courses:

since i’m just two months away to graduate and then doing my thesis project i won’t be able to post my notes, but the courses that i’m taking are

social marketing management

conflict resolution

communication and education

politic campaign management

goals:

learn korean

journaling

bujo

procrastinate less

inspiration:

@studyquill @adelinestudiess @apricot-studies @studylustre @emmastudies @elkstudies @eintsein @peachynerds @sootudying @athenastudying @lycheestudy

athenastudying-deactivated20220

hello and welcome to the community! thanks for mentioning me :)

I love noisy surroundings?

So whenever I’m studying I do enjoy noisy surroundings, like coffeeshop surroundings, or just having a tv turned on. I feel like I’m the only one on this. Of course, I do enjoy studying in silence too, but that’s more for the big study sessions, not my short 90 minutes sessions.

#studyblr #new studyblr #studying #study routine

emmastudies

What is a popular study/organisation tip that doesn’t work for you and why? :-)

determinedtosucceed-deactivated

THE POMODORO METHOD. I could rant about it for days. By the time I get into a study groove, the 25 minutes is up. I know it’s effective for many, but I much prefer to work in 90 minute time blocks.

emmastudies

I feel you!! I find it good as a get going strategy but once I’m getting on I tend to do like 40 minutes instead! Otherwise I find myself taking to many breaks 😂

cyclicstudies

Organic Chemistry: Electrophilic Additions to Alkenes

Hey all! I wanted to put together a few review guides for the reactions I learned in my organic chemistry 1 class. I’m starting off with the alkene-related reactions, specifically with electrophilic additions. Despite being super hard to fully conceptualize (I still have trouble with them!!), they’re very important to recognize, because the same patterns repeat with other reaction types, particularly with alkynes. I’ll go through each reaction type here with a quick mechanism and jot down important bits of info. But before I start, I used a lot of abbreviations, so here’s a key:

R+ is carbocation

R is any group with a carbon

IM is intermediate

X is halogen

E+ is electrophile

RDS is rate-determining step

HOMO is highest occupied molecular orbital

LUMO is lowest unoccupied molecular orbital

Squiggly lines indicate enantiomers formed due to alternating wedges and dashes

Addition of HX

Introducing Markovnikov’s rule: the formation of a more stable R+ is favored b/c it’s a lower energy process

Alkene additions proceed faster via a more stable R+ IM (kinetics)

Tri-substituted carbons are favored over mono-substituted carbons

X is added to the more substituted carbon

Always watch for stereochemistry! Enantiomers can be formed as products

Carbocation Rearrangements

Carbocation rearrangements will occur so the R+ is as stable as possible

That’s why the Markovnikov product won’t always be the major product

Rearrangements usually occur through hydride shifts, but alkyl shifts can also happen if that’s the only possible route

Remember: always check to see where the positive charge is at− if you can shift a hydrogen or methyl group over to make that carbon extra substituted, then it’s probably right

With the orbital alignment (aka alkyl shift), there’s a filled-empty orbital overlap, where the migrating bond is aligned with the empty 2p orbital

Ring Expansions

Some questions are gonna ask you to do ring expansions, so always think alkyl shifts (again, this is so we form the most stable R+)

NUMBER. YOUR. CARBONS. This will get messy

Note that even though the di-substituted carbon doesn’t change after the first arrow, the shape changes from cyclopentane to cyclohexane, so it’s thermodynamically more stable

Hydration

This follows Markovnikov’s rule− the OH group is always on the more substituted carbon of the alkene

Also this is pretty much a repeat of HX addition, but with some acid-base action

Pro-tip: your catalyst, H3O+, is always gonna be the electrophile, and your nucleophile is always gonna be the double bond, so START THERE!

There’s gotta be water after that first step (hydration, duh)

Your water is now a nucleophile, and it’s gonna start attacking the R+

Remember to follow through with any possible R+ rearrangements− we won’t need it here b/c the R+ is already tri-substituted

Your catalyst MUST be regenerated!! *insert acid-base reaction*

Side note: alkene dehydration is the reverse of hydration and is an E1 process

DON’T ADD H2O/H3O+ UNDER DEHYDRATION CONDITIONS

Instead, use a strong acid, like concentrated H2SO4

Oxymercuration-Demercuration

This is essentially an alkene “hydration” w/o the rearrangement part

We don’t have rearrangement b/c the mercurinium ion doesn’t have a carbon

When the mercurinium ion bridge breaks, the nucleophile (in the second example, water), attacks the MORE substituted carbon, whereas the HgOAc attacks onto the LESS substituted carbon

The OH and HgOAc add ANTI to each other, but then the H from BH4- changes orientation on the LESS substituted carbon (forming diastereomers)

Side note: as a variation, you can also use an alcohol (ROH) instead of H2O in the oxymercuration step

Hydroboration/ Oxidation

The double bond nucleophile attacks the empty orbital in BH3

The BH3 attaches onto the LESS substituted carbon, so the positive charge builds on the MORE substituted carbon

I like drawing the third H in BH3 as an extension of BH2, so I can visually see the hydride shift

The OH from the peroxide basically replaces the BH2

The specific steps with BH3 get messy, so I was taught a revised method− basically, a concerted addition of BH3 w/ an internal H- transfer

There is regioselectivity in the sense that the partial positive charge follows Markovnikov’s rule

There is stereospecificity due to the syn (same side) addition of H and BH2 in the hydroboration product

Alkene Halogenation

Note that I2 doesn’t work here as a possible halogen

Markovnikov regioselectivity is present

There is ANTI stereospecificity, as in the two individual X’s from X2 attach themselves as opposite wedges and dashes

Alkene Halohydrin Formation

This is very similar to the previous alkene halogenation, except the second X in X2 doesn’t attach onto the final product

Rather, the nucleophile replaces the second X

Markovnikov regioselectivity is also present (this is SN1-like)

There is ANTI stereospecificity yet again (this is SN2-like)

And that’s it! Well, this is a good chunk of alkene reactions (and a pretty brief version of it). Regardless, I hope this is helpful! I hope to follow up with extra review mechanisms for additional alkene and alkyne reactions. Thanks for reading!!

#chemistry #studyblr

them-days-was-olden-as-fuck

The spread of the black death.

kaneohtakarada-deactivated20160

Poland

sarahvonkrolock

Poland, tell us your secret.

nautilidi-deactivated20130605

Poland is the old new Madagascar.

lazuli43

If I remember correctly, Poland’s secret is that the jews where being blamed all over europe (as usual) as scapegoats for the black plague. Poland was the only place that accepted Jewish refugees, so pretty much all of them moved there.

Now, one of the major causes of getting the plague was poor hygiene. This proved very effective for the plague because everyone threw their poop into the streets because there were no sewers, and literally no one bathed because it was against their religion. Unless they were jewish, who actually bathed relatively often. When all the jews moved to Poland, they brought bathing with them, and so the plague had little effect there.

Milan survived by quarantining its city and burning down the house of anyone showing early symptoms, with the entire family inside it.

kiwimane

I reblogged this tons of times, but the Milan info is new.

Damn Italy, you scary.

thesonicscrew

Poland: “Hey, feeling a bit down? Have a quick wash! There, you see? All better”

Milan: “Aw, feeling a bit sick are we? BURN MOTHERFUCKER, BURN!!!!!”

theeyesinthenight

Also, this might have something to do with it: from what I understand, O blood type is uncommonly… common in Poland. Something to do with large families in small villages and a LOT of intermarriage. The black plague was caused by a bacterium that produced, in its waste in the human body, wastes that very closely mimic the “B” marker sugars on red blood cells that keep the body from attacking its own immune system. Anyone who has a B blood type had an immune system that was naturally desensitized to the presence of the bacterium, and therefore was more prone to developing the disease. Anyone who had an O type was doubly lucky because the O blood type means the total absence of ANY markers, A or B, meaning that their bodys’ immune system would react quickly and violently against the invaders, while someone with an A may show symptoms and recover more slowly, while someone with B would have just died. Because O is a recessive blood type, it shows in higher numbers when more people who carry the recessive genes marry other people who also carry the recessive gene. Poland, which has a nearly 700 year history of being conquered by or partnering with every other nation in the surrounding area, was primarily an agricultural country, focused around smaller, farming communities where people were legally tied to, and required to work, “their” land, and so historically never “spread” their genes across a large area. The economy was, and had been, unstable for a very long period of time leading up to the plague, the government had been ineffective and had very little reach in comparison to the armies of the other countries around for a very very long time, and so its people largely remained in small communities where multiple generations of cross-familial inbreeding could have allowed for this more recessive gene to show up more frequently. Thus, there could be a higher percentage of O blood types in any region of the country, guaranteeing less spread of the illness and moving slower when it did manage to travel. Combine this with the fact that there were very few large, urban centers where the disease would thrive, and with the above facts, and you’ve got a lovely recipe for avoiding the plague.

Interestingly enough, as a result from the plague, the entirety of Europe now has a higher percentage of people with O blood type than any other region of the world.

simoorgh

WHY IS THIS ALL SO COOL

icepickparty

When Tumblr teaches you more about the plague than 12 years of school ever did.

detenebrate

Just to throw a nod in, as a medieval historian, this is all credible, and is the leading theory as to the plagues effectiveness at this point. So. Enjoy your new knowledge!