Welcome to the 2021-2022 school year.
It's good to be back in the classroom again.
Please bring an extra mask just in case, and a re-fillable water bottle, or two disposable bottles each day.
I know that it will be a lot different than the last year, so remember to come prepared for learning in class. See the list of materials you will need to be sucessful in class.
Email me at firstname.lastname@example.org if you have any questions, or if you need help.
The researchers found that a sheet of tightly woven cotton — of 600 threads per inch — plus two sheets of chiffon, made from polyester and spandex, seemed to make the most effective combination, filtering out 80–99% of the particles, depending on their size.
The team even suggests that the performance of this combination is comparable to that of N95 masks, which are used by healthcare professionals.
Other combinations that perform well, according to the researchers, are tightly woven cotton plus natural silk or flannel, and cotton quilt with cotton-polyester batting.
Chinese bus offers new evidence of airborne coronavirus spread: study
A person on a poorly ventilated Chinese bus infected nearly two dozen other passengers with coronavirus even though many weren't sitting close by, according to research published on Tuesday that offers fresh evidence the disease can spread in the air.
Health authorities had initially discounted the possibility that simply breathing could send infectious micro-droplets into the air, but did a U-turn as experts piled on pressure and evidence mounted.
The article published Tuesday in JAMA Internal Medicine probes the threat of airborne infection by taking a close look at passengers who made a 50-minute trip to a Buddhist event in the eastern Chinese city of Ningbo aboard two buses in January before face masks became routine against the virus.
Researchers believe a passenger, whose gender was not identified, was likely patient zero because the person had been in contact with people from Wuhan, the city where the contagion emerged late last year.
The scientists managed to map out where the other passengers sat, and also test them for the virus, with 23 of 68 passengers subsequently confirmed as infected on the same bus.
What is notable is that the sickness infected people in the front and back of the bus, outside the perimeter of 1-2 meters (three-six feet) that authorities and experts say infectious droplets can travel.
On top of that, the sick passenger was not yet showing symptoms of the disease, such as a cough, when the group made their trip to a religious event.
Researchers also noted the air conditioning simply recirculated the air inside the bus, which likely contributed to spreading of the virus.
"The investigations suggest that, in closed environments with air recirculation, SARS-CoV-2 is a highly transmissible pathogen," they wrote, referring to the name of the virus.
"Our finding of potential airborne transmission has important public health significance."
Their study, which includes a diagram showing where each infected passenger sat, adds to the evidence of airborne transmission, including research into how the virus spread between diners' tables at a restaurant in the southern Chinese city of Guangzhou.
LEAGUE OF DENIAL 1
- a stunning, damaging, or shattering effect from a hard blow; especially : a jarring injury of the brain resulting in disturbance of cerebral function.
- a doctor who practices neuropathology which is the study of disease of nervous system tissue, usually in the form of either small surgical biopsies or whole autopsy brains. Neuropathology is a subspecialty of anatomic pathology, neurology, and neurosurgery.
- Mike Webster was a professional football player who declined mentally and physically after retiring from the game. FRONTLINE proposes that Webster brain was damaged by playing football and caused him to develop CTE.
- They are investigating whether football causes CTE and how much the NFL knew about the dangers of playing football. Particularly, did they know and try to keep it a secret.
- His head
- 1,000 – 1,500
- Bell ringers
- Mike went from being a kind and functional adult to mentally and physically disabled. He began drinking, he had dementia, he was aggressive and unable to take care of himself.
- A doctor who practices medicine with patients (as opposed to research)
- a brain disease that gets worse over time as tau proteins surround brain cells choking them to death. It causes the patient’s brain to deteriorate, which deeply affects their behavior and ability to function.
- a condition (such as an illness or an injury) that damages or limits a person's physical or mental abilities
- a scientist who studies the nervous system (the brain is part of the nervous system) and the its diseases
- a statement saying that something you said or wrote at an earlier time is not true or correct
- a protein found in the brain tissue that plays a role in stabilizing microtubules, but in excess can cause degeneration of the brain. Often found in the tissue samples of patients with Alzheimer’s.
- a group of one particular type of cells, for example a group of neurons form brain tissue.
- a serious injury to a person's body
- They made it glamorous, part of the life and culture of the game. People loved the violence and the NFL created TV that focused on it.
- He lost his short term memory. When he went to the hospital for his concussion he couldn’t remembered the game or why he was there.
- They denied that there was a problem. They said that the media was making a big fuss out of nothing.
- No they did not. They did not choose doctors who had experience with brains, but instead chose NFL team doctors.
- They found that there was no evidence that football was dangerous in the long term.
- They interviewed far too few people for it to be a real experiment.
- It lead people to believe that concussions had no serious long term negative impact to players.
- Chronic Traumatic Encephalopathy is a disease of the brain. Tau proteins are left behind and essentially choke neurons by surrounding them. Then those areas of the brain essentially die. It looked like as a result of the CTE players developed memory problems, drug abuse, and often became aggressive. Essentially their lives went down hill.
- They dismissed his findings and tried to ruin his reputation as a doctor.
- It rarely happens, but does when a study is discovered to be fake or something was very wrong with it.
- If Dr. Omalu was right and they were wrong they would have to take responsibility for the health of the players who had CTE and admit they had been wrong. It could also force them to pay huge settlements out to players. Also, they might have to change the way that football is played.
- The implications were that playing football causes long term and permanent brain damage. People may not enjoy the game as much if they realized how badly it was hurting the players. People might not play football if they thought the results would be long term brain damage.
- They ignored the findings from Omalu’s work and continued to reiterate their own stance from their research. No changes were made regarding the NFL’s policy on concussions or CTE.
Please continue to wear a mask in class, and keep it above your nose. If you don't keep yourself masked properly (above your nose, and covering your mouth), you can be infected by someone else in the class who unkowingly has Covid, or worse, you can infect others if you are carrying Covid and not showing symptoms.
Welcome to 7th grade Science.
Here is a list of the materials you will need for 7th grade Science;
NOTEBOOK (spiral bound) ___
COMPOSITION BOOK (graphing optional) ___
LINED PAPER (50 sheets) ___
PENCILS &PENS ___
COLORED PENCILS (set of 8 or 12) ___
GLUE STICKS ___
WATER BOTTLE(S) ____
Please have these by Monday, August 16th, thanks