“Man the Hunter has dominated the study of human evolution for nearly half a century & pervaded popular culture. [But] it was the arrival of agriculture that led to rigid gendered roles & economic inequality. Hunting belonged to everyone.”
I've never stopped feeling angry about the NYT's story from last November which fearmongered heavily about puberty blockers and the supposed risks to bone health they might bring.
So it is with grim satisfaction that I can report on a new study, in JAMA Pediatricts, that suggests fears about bone density have been wildly overstated. #science#trans#journalism#mediabias#news
There are those who believe they can bring into existence what they imagine.
On the other hand, there are those who don't even believe other people exist: they think their mind is the one forming images and that others are part of their mind.
As for me, I am intelligent and I believe in God.
Water did not create itself.
Let me hear from atheists who think water created itself.
I have a friend, who is a carpenter. I swear he can imagine a beautiful wooden cabinet, and with some hours of work with right tools and materials, honest, he can bring it into existence. It’s amazing!
Youtube is full of breathless "science" reporting videos that are full of mostly nonsense, especially when anything remotely related to quantum physics is involved. They give questionable and misleading (if not outright fallacious) descriptions of physics and then uncritically accept the findings and most sensational interpretations of freshly published research papers that haven't been fully vetted or even reproduced by the greater science community. #science#QuantumPhysics
I'd wager you'll find that's the case with anything you're an expert in.
Some topics (like QM) more so than others, because they have a certain coolness factor for the uninitiated.
For me it's Aerodynamics. So much so that my first year lecture includes an implicit warning in the induction lecture.
There's a massive catch22 with YouTube: (a) there's a lot of good stuff, and a lot of bad stuff. (b) In order to distinguish between the two, you need to be an expert. So what do you do if you want to use YouTube to learn something new and haven't at least got a good background in balony detection?
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Stevia, a zero-calorie sugar substitute, is recognized as safe by the Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA). In vitro and in vivo studies showed that stevia has antiglycemic action and antioxidant effects in adipose tissue and the vascular wall, reduces blood pressure levels and hepatic steatosis, stabilizes the atherosclerotic plaque, and ameliorates liver and kidney damage. The metabolism of steviol glycosides is dependent upon gut microbiota, which breaks down glycosides into steviol that can be absorbed by the host. In this review, we elucidated the effects of stevia’s consumption on the host’s gut microbiota. #Stevia#kombucha#ikombucha_ro#ikombucha https://www.mdpi.com/2076-2607/10/4/744/htm
I have IBS and sugar makes it act up. I use stevia extract as a substitute in products, and I AM constantly working on improving my gut biome health. This was a dense but good read.
Stevia is considered a "natural non-caloric sweetener." Saccharin and sucralose are considered "non-nutritive sweeteners" (few or no calories). Aspartame is a "nutritive sweetener" (adds some calories but far less than sugar).
Aspartame comes with a warning to be used cautiously (or not at all) by people with a rare genetic disease (called phenylketonuria, or PKU) because they have trouble metabolizing it; that's not true for the other sweeteners. And all four vary on their level of sweetness and aftertaste, which is likely why people often prefer one over another. #Stevia#kombucha#ikombucha_ro#ikombucha https://www.health.harvard.edu/blog/sweeteners-time-to-rethink-your-choices-2019022215967
Hi, I'm not quite sure if this vhdl code and testbench is correct for the given task. Can you take a look?
Design a one-hour kitchen timer. The device should have buttons/switches to start and stop the timer, as well as to set the desired time interval for the alarm. Realize the task using the software package Quartus or in GHDL, confirm the correctness of the project task by simulation.
This is VHDL code:
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity Kitchen_Timer is
port (
clk : in std_logic; -- Clock input
reset : in std_logic; -- Reset input
start : in std_logic; -- Start button input
stop : in std_logic; -- Stop button input
alarm : out std_logic -- Alarm output
);
end entity Kitchen_Timer;
-- Declare the architecture for the kitchen timer
architecture Behavioral of Kitchen_Timer is
signal count : integer range 0 to 3600 := 0; -- Counter for timer
signal alarming : std_logic := '0'; -- Signal to indicate alarming interval
signal alarm_en : std_logic := '0'; -- Signal to enable alarming interval
signal alarm_cnt : integer range 0 to 600 := 0; -- Counter for alarming interval
begin
-- Process to control the kitchen timer and alarming interval
process (clk, reset)
begin
if (reset = '1') then
count <= 0;
alarming <= '0';
alarm_en <= '0';
alarm_cnt <= 0;
elsif (rising_edge(clk)) then
if (stop = '1') then
count <= 0;
alarming <= '0';
alarm_en <= '0';
alarm_cnt <= 0;
elsif (start = '1' and count < 3600) then
count <= count + 1;
if (count = 3600) then
count <= 0;
alarming <= '0';
alarm_en <= '0';
alarm_cnt <= 0;
elsif (count > 0) then
alarm_en <= '1';
end if;
end if;
if (alarm_en = '1') then
if (alarm_cnt < 600) then
alarm_cnt <= alarm_cnt + 1;
else
alarm_cnt <= 0;
alarming <= '1';
end if;
end if;
end if;
end process;
-- Assign the alarm output
alarm <= alarming;
end architecture Behavioral; ```
This is Testbench:
```library ieee;
use ieee.std_logic_1164.all;
entity tb_Kitchen_Timer is
end tb_Kitchen_Timer;
architecture tb of tb_Kitchen_Timer is
component Kitchen_Timer
port (clk : in std_logic;
reset : in std_logic;
start : in std_logic;
stop : in std_logic;
alarm : out std_logic);
end component;
signal clk : std_logic;
signal reset : std_logic;
signal start : std_logic;
signal stop : std_logic;
signal alarm : std_logic;
constant TbPeriod : time := 1000 ns; -- EDIT Put right period here
signal TbClock : std_logic := '0';
signal TbSimEnded : std_logic := '0';
begin
dut : Kitchen_Timer
port map (clk => clk,
reset => reset,
start => start,
stop => stop,
alarm => alarm);
-- Clock generation
TbClock <= not TbClock after TbPeriod/2 when TbSimEnded /= '1' else '0';
-- EDIT: Check that clk is really your main clock signal
clk <= TbClock;
stimuli : process
begin
-- EDIT Adapt initialization as needed
start <= '0';
stop <= '0';
-- Reset generation
-- EDIT: Check that reset is really your reset signal
reset <= '1';
wait for 100 ns;
reset <= '0';
wait for 100 ns;
-- EDIT Add stimuli here
wait for 100 * TbPeriod;
-- Stop the clock and hence terminate the simulation
TbSimEnded <= '1';
wait;
end process;
end tb;
-- Configuration block below is required by some simulators. Usually no need to edit.
configuration cfg_tb_Kitchen_Timer of tb_Kitchen_Timer is
for tb
end for;
end cfg_tb_Kitchen_Timer;```
#science
@T4V0 Thanks for the answer, but I think I didn't understand you very well, can you send me the code with the modifications so that I know what exactly you mean?
Thank you very much, in advance
can you send me the code with the modifications so that I know what exactly you mean?
I would rather not, as it isn't a good learning experience for you, and would require some time for me to write the code.
Though if you have any questions about my previous answer, feel free to ask me about it.
As a freebie for you, pay attention to the alarming signal, and the condition that has been set: "The device should have buttons/switches to start and stop the timer, as well as to set the desired time interval for the alarm.". If I wanted the alarm to ring after 50 minutes, how would I do that? And what happens when the timer starts?
From the code I see here, the alarm is going to ring 10 minutes after being started, and it won't stop until an hour passes. And it has no way to set a time for it to ring, it always rings after 10 minutes.
And, not only that, the start signal is never set in the testbench, so the timer is never going to begin.
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