BC HEALTH
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No-regret #hydrogen:
Charting early steps for H₂ infrastructure in Europe.

👉Summary of conclusions of a new study by @AgoraEW @AFRY_global @Ma_Deutsch @gnievchenko (1/17)
https://t.co/YA50FA57Em

 The idea behind this study is that future hydrogen demand is highly uncertain and we don’t want to spend tens of billions of euros to repurpose a network which won’t be needed. For instance, hydrogen in ground transport is a hotly debated topic https://t.co/RlnqDYVzpr (2/17)
Similar things can be said about heat. 40% of today’s industrial natural gas use in the EU goes to heat below 100°C and therefore is within range of electric heat pumps – whose performance factors far exceed 100%. (3/17)
Even for higher temperatures, a range of power-to-heat (PtH) options can be more energy-efficient than hydrogen and should be considered first. Available PtH technologies can cover all temperature levels needed in industrial production (e.g. electric arc furnace: 3500°C). (4/17)
In our view, hydrogen use for feedstock and chemical reactions is the only inescapable source of industrial hydrogen demand in Europe that does not lend itself to electrification. Examples include ammonia, steel, and petrochemical industries. (5/17)
We see strong demand for hydrogen from steel in particular as producers all over Europe (🇸🇪🇷🇴🇩🇪🇦🇹🇮🇹🇫🇷) plan to move to direct reduced iron (DRI) processes – and so do others around the globe, as recent announcements from China and Korea have shown. (6/17)
Given the 2050 climate neutrality target, we see the demand from refineries vanish, to be replaced with demand from steel. Overall, by 2050 we expect that almost 300 TWh of low-carbon hydrogen will be required. Remarkably, that is similar to hydrogen demand in 2020. (7/17)
Having established inescapable demand, we can start thinking about matching supply. European and neighbouring countries have a high renewable energy potential that can be tapped for direct-electric applications and renewable hydrogen production. (8/17)
In our analysis, we consider two scenarios with renewable hydrogen production: The BLUE-GREEN scenario also includes SMRCCS as an option in 🇳🇱🇳🇴🇬🇧because those countries are actively developing the technology. (9/17)
Taking into account asset lifecycles and political commitments in the BLUE-GREEN scenario, fossil-based hydrogen with carbon capture will remain a viable investment until the 2030s. However, … (10/17)
… strong policies for renewable hydrogen will shorten the investment window for fossil hydrogen, likely closing it before the end of the 2020s as is the outcome of the FAST GREEN scenario which is in line with EU Hydrogen strategy electrolyser targets. (11/17)
But producing the required quantities of H2, especially with renewables, is only one piece of the puzzle. Geography adds to the challenge: steel, ammonia, refineries and chemical plants are widely distributed across Europe. Their demand can vary by an order of magnitude. (12/17)
Ensuring reliable supply means accounting for various weather and seasonal effects. In our analysis, we model salt caverns to take care of the variation in renewables to produce “flat hydrogen”. That led us to derive least-cost pipeline corridors for hydrogen transport. (13/17)
Consequently, we identify 4 robust no-regret corridors for early hydrogen pipelines and storage based on industrial demand in different parts of Europe. The demand identified is unlikely to justify a large, pan-European H2 backbone. (14/17)
We do note, however, that our assumptions are limited to inescapable demand from industry. Adding potential hydrogen demand from power, aviation and shipping sectors is likely to strengthen the case for a more expansive network of H2 pipelines. (15/17)
Nonetheless, even under most optimistic scenarios any future H2 network will be smaller than the current natgas network. A no-regret vision for H2 infrastructure reduces the risk of oversizing by focusing on inescapable demand, robust green hydrogen corridors and storage. (16/17)
You can access the underlying maps and data here: (17/17)

https://t.co/5W7hyqGOIg

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Let’s talk about ORGANIC.

Robert Paarlberg’s new book on the food system is out today, and here’s an excerpt.

He’s not a fan of organic, and he makes some good points but misses others.

Here we go.

Organic's biggest shortcoming is that you need more land to grow the same amount of food.

The yield penalty happens in almost every crop, in almost every study.

The gap could narrow with more research/varieties, but it won’t go away.

This has big, bad climate implications.

The second issue I have with organic, which Paarlberg shares, is that its basic criterion is naturalness.

Natural doesn’t mean safe, or even safer. A farming standard based on it forces farmers to sometimes use more dangerous, less effective tools.

On human health, there’s scant evidence that pesticide residues on conventional produce are harmful to consumers (though it’s possible farmworkers could be at risk).

What I don’t want is for folks who can’t afford organic to worry about feeding their kids conventional produce.

On the plus side, Paarlberg acknowledges that the organic standard has some real advantages for animal welfare.

This is why I buy organic animal products.

Many in the organic world would like more regs ensuring animals have decent lives.
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Dr. Adam H. Domby
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@AdamHDomby
Now you know I love to sh-t in Harvard. But I also like accuracy. So I decided to go look at Harvard’s catalog to see its lack of military history that this article describes (they only teach history of pets it claims) and what I found shocked me! Shocked me! A thread: 1/


First off, Harvard students literally have multiple sections of military history that they can take listed. (It appears these ones are taught at MIT, so they might have to walk down the street for these) but... 2/


Say they want to stay on campus...they can only take numerous classes on war and diplomacy...3/


They have an entire class on Yalta. That’s right. An entire class on Yalta. 4/


But wait! There is more! They can take the British Empire, The Fall of the Roman Empire for those wanting traditional topics... 5/
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Enigma
Enigma
@ainittomai
On December 29 we were dillucidating here if the drops meant "surprise, relatively neutral expression" or "a negative expression, horror" (Remember: https://t.co/J2gjQjAENw ). Well, December 22 drops seem to clarify it. First, the December 29 drop that generated the confusion 1/*


didn't appear in today drops, while several old ones have been posted again. I would say that all December 22 drops regarding facial expression mean and clarify "surprise". 2/*


More 3/*


And more. So, they didn't point to a negative event, just to one that generates surprise. 4/*


All these drops were completed with a Christmas gift one, confirming the surprise neutral meaning and adding a related positive one connected to the surprise. 5/*
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Nyx
Nyx
@Nix_468
Ashtangha Yoga or the eight limbs of Yoga-


Many people think Yoga is just an Indian physical exercise but that's wrong. Yoga is a way to connect with the Supreme in Hinduism and attain Moksha(liberation).
The proper yoga as described in Hindu scriptures consists of 8 limbs:

1) Yamas- They are the 5 ethical rules of Hinduism. The 5 Yamas are:
i) Ahimsa: Nonviolence (this also includes not eating meat)
ii) Satya: truthfulness
iii) Asteya: non-stealing
iv) Brahmacharya: chastity, sexual restraint
v) Aparigraha: non-avarice, non-possessiveness

2) Niyamas- They are the 5 "do's". The five Niyamas are:
i) Shaucha: purity of mind, speech and body
ii) Santosha: contentment
iii) Tapas: austerity, self-discipline
iv) Svadhyaya: study of Vedas(Holy books of Hindus)
v) Ishvarapranidhana: contemplation of the Ishvara (God)

3) Aasana or the physical yoga-
Asana is a posture that one can hold for a period of time, staying relaxed, steady, comfortable and motionless. The aasana postures are believed to have been given by Mahadeva (Hindu God) himself. Hatha Yoga Pradipika mentions 84 aasanas.
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Sumanta Pal
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@montypal
It's Monday AM post-@ASCO #GU21 & clinic starts in a couple of hours! Lots to process - I'll try to tackle optimal 1L tx for #kidneycancer. I'll make a case for cabo/nivo, leaning on the beautiful (& timely) tables below from @lalaniMD, @SoaresAndrey & @brian_rini (1/15)


What about IO/IO? We have long f/u w #CM214 data w nivo/ipi, no doubt (@AlbigesL et al in @myESMO Open). And treatment-free interval discussed by McDermott @BIDMChealth is no doubt impt. But we've known data not as impressive for favorable risk (2/15)


And furthermore, as @ERPlimackMD points out in another tweet, impt to look at primary PD rates (seen in @lalaniMD's table) - nivo/ipi at 19%!!! CR rate used to be something we highlighted w nivo/ipi, but now comparable across studies (3/15)


Okay now to the really tough stuff - comparing TKI/IO regimens. Something interesting I will add to @brian_rini @uromigos table above is the HR for PFS by INVESTIGATOR review. If the diff in HR for PFS by IND review caught your eye, this is even more striking (4/15)


I think INV-assessed PFS is impt, but if you're a skeptic, forget that argument. Turn instead to #QOL with axi/pembro. Kudos to @brian_rini @tompowles1 @ERPlimackMD et al for advocating for QOL in KN-426. @crisbergerot et al have taughts us the importance of these metrics. (5/15)
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The 2020s will be known as the Remote Work decade

A few predictions of what is likely to emerge

[ a thread ] 💻🏠🌍

🏦Third Space: Office and Working from Home will be joined by somewhere close by that a number of people will use

Supermarkets or local bank branches should emerge as a convenient ubiquitous location option – if they are smart

⏰Asynchronous Work: Offices are instantaneous gratification distraction factories where synchronous work makes it impossible to get stuff done

Tools that enable asynchronous work are the most important thing globally remote teams need. A lot of startups will try to tackle this

⚽️Hobbie Renaissance: Remote working will lead to a rise in people participating in hobbies and activities which link them to people in their local community

This will lead to deeper, more meaningful relationships which overcome societal issues of loneliness and issolation

🚜Rural Living: World-class people will move to smaller cities, have a lower cost of living & higher quality of life

These regions must innovate quickly to attract that wealth. Better schools, faster internet connections are a must
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Anu Satheesh \U0001f1ee\U0001f1f3
Anu Satheesh 🇮🇳...
@AnuSatheesh5
Samayapuram Mariamman Temple
#Trichy
#Tamilnadutemples 🚩

Samayapuram Mariamman Temple is located in Samayapuram of
 Tiruchirappalli district.  Mariyamman here is worshipped as Samayapurathal a form of Parashakti.
Amman vigraham here is made of sand and clay so


no abhishekam done to the main vigraham. Samayapuram Mariamman Temple is one of the famous Shakthi Sthal of Tamilnadu.

Story says that paramashiva created Kali, out of the poison that he drank during samudra mathanam.  As Devi originated from the Kaalakoota/ halahala poison,


thus the name Kaali. Mariamman is believed to be a form of Kaali, and is also known as Mahamayi. It is also believed that Maharaja Dasharatha offered his prayers here.

Mariamman is Parashakti herself who blesses with prosperity and she is believed to cure all diseases.


Paramashiva, Mahavishnu and Brahma Deva are believed to have taken blessings of Mariamman here.

Om Shakti Para Shakti
🙏🕉🙏
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Khatvaanga
Khatvaanga
@khatvaanga
Sri Gurubhyo Namah.
Some tweets on Adi Shankaracharya and in particular the Guru Parampara of @sringerimath. [I had done this series earlier 5 years ago on account of Shishya Sweekaram].


Adi Shankara established the Sringeri Peetham as the 1st of 4 amnaaya peetams.

The four being
1. Sarada Peetam at Sringeri.
2. Govardhana Peetam at Puri
3. Kalika at Dwaraka
4. Jyothir at Badarikashramam.

He installed his 4 most prominent shishyas as heads of the peetams.

Sureshwaracharya was assigned to Sringeri as its head.

Sringeri is a corruption of Rshyashrunga giri.

Rshyashrunga maharshi [and his father Sri Vibandhaka Maharshi] did their tapas at this place.

It is at Sringeri that Shankara spent 12 of His precious 32 years!!

That gives you and idea how much He loved this place.

Rshyashruga maharshi had a horn on his forehead, a result of being born to a deer. His mere presence was enough to shower rains!!

Rshyashrunga was one who led Putrakamesthi Yaagam of Dasaratha Maharaj and which resulted in Sri Rama's birth!!
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🌿𝑻𝒉𝒆 𝒔𝒕𝒐𝒓𝒚 𝒐𝒇 𝒂 𝑺𝒕𝒂𝒓 : 𝑫𝒉𝒓𝒖𝒗𝒂 & 𝑽𝒊𝒔𝒉𝒏𝒖

Once upon a time there was a Raja named Uttānapāda born of Svayambhuva Manu,1st man on earth.He had 2 beautiful wives - Suniti & Suruchi & two sons were born of them Dhruva & Uttama respectively.
#talesofkrishna https://t.co/E85MTPkF9W


Now Suniti was the daughter of a tribal chief while Suruchi was the daughter of a rich king. Hence Suruchi was always favored the most by Raja while Suniti was ignored. But while Suniti was gentle & kind hearted by nature Suruchi was venomous inside.
#KrishnaLeela


The story is of a time when ideally the eldest son of the king becomes the heir to the throne. Hence the sinhasan of the Raja belonged to Dhruva.This is why Suruchi who was the 2nd wife nourished poison in her heart for Dhruva as she knew her son will never get the throne.


One day when Dhruva was just 5 years old he went on to sit on his father's lap. Suruchi, the jealous queen, got enraged and shoved him away from Raja as she never wanted Raja to shower Dhruva with his fatherly affection.


Dhruva protested questioning his step mother "why can't i sit on my own father's lap?" A furious Suruchi berated him saying "only God can allow him that privilege. Go ask him"
RELIGION
Jaya_Upadhyaya
Jaya_Upadhyaya
@Jayalko1
SRI KALAHASTI KSHETRAM, CHITTOOR (AP)
#bharatmandir

Panchbhootasthalam representing vayu element, also called Dakshin Kailasha.
As per Shiva’s boon, Vayu is incarnated here as Shiva and worshipped as Kalahasteeswara.
The kshetram is also associated with Rahu and Ketu.


The Kshetram is named after 3 devotees of Shiva- a snake, spider and elephant who worshipped a lingam in the forest. Elephant did jal abhishek with water from its trunk, spider protected it from dust by weaving a web on it and snake adorned it with his jewel.
@GunduHuDuGa


Once, the web and jewel got washed away when elephant sprayed water on the lingam. Angered snake entered elephant’s trunk and bit him but died in the process. The agitated elephant trampled the spider accidentally. Shiva gave moksha to all three.


Hence the name-Sri for Spider, kaal for snake n hasti for elephant.

Shiv bhakt Kanappa is said to have plucked his own eye to put it on the lingam here when he saw blood oozing from the eye on the lingam
This place is the ultimate location for Rahu Kethu Sarpa Dosha Nivarana.
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