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Theological differences between the Catholic Church and the Eastern Orthodox Church - Wikipedia
Did the Filioque Ruin the West?:
The theology of the filioque makes the Father and the Son equal as sources of divinity. Flattening the hierarchy implicit in the Trinity does away with the Monarchy of the Father: the family relationship becomes less patriarchal and more egalitarian. The Son, with his humanity, mercy, love and sacrifice, is no longer subordinate to the Father, while the Father – the God of the Old Testament, law and tradition – is no longer sovereign. Looks like the change would elevate egalitarianism, compassion, humanity and self-sacrifice while undermining hierarchy, rules, family and tradition. Sound familiar?
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april 2018 by nhaliday
Is the human brain analog or digital? - Quora
The brain is neither analog nor digital, but works using a signal processing paradigm that has some properties in common with both.
Unlike a digital computer, the brain does not use binary logic or binary addressable memory, and it does not perform binary arithmetic. Information in the brain is represented in terms of statistical approximations and estimations rather than exact values. The brain is also non-deterministic and cannot replay instruction sequences with error-free precision. So in all these ways, the brain is definitely not "digital".
At the same time, the signals sent around the brain are "either-or" states that are similar to binary. A neuron fires or it does not. These all-or-nothing pulses are the basic language of the brain. So in this sense, the brain is computing using something like binary signals. Instead of 1s and 0s, or "on" and "off", the brain uses "spike" or "no spike" (referring to the firing of a neuron).
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april 2018 by nhaliday
Society of Mind - Wikipedia
A core tenet of Minsky's philosophy is that "minds are what brains do". The society of mind theory views the human mind and any other naturally evolved cognitive systems as a vast society of individually simple processes known as agents. These processes are the fundamental thinking entities from which minds are built, and together produce the many abilities we attribute to minds. The great power in viewing a mind as a society of agents, as opposed to the consequence of some basic principle or some simple formal system, is that different agents can be based on different types of processes with different purposes, ways of representing knowledge, and methods for producing results.

This idea is perhaps best summarized by the following quote:

What magical trick makes us intelligent? The trick is that there is no trick. The power of intelligence stems from our vast diversity, not from any single, perfect principle. —Marvin Minsky, The Society of Mind, p. 308

The modular organization of human anatomical
brain networks: Accounting for the cost of wiring:
Brain networks are expected to be modular. However, existing techniques for estimating a network’s modules make it difficult to assess the influence of organizational principles such as wiring cost reduction on the detected modules. Here we present a modification of an existing module detection algorithm that allowed us to focus on connections that are unexpected under a cost-reduction wiring rule and to identify modules from among these connections. We applied this technique to anatomical brain networks and showed that the modules we detected differ from those detected using the standard technique. We demonstrated that these novel modules are spatially distributed, exhibit unique functional fingerprints, and overlap considerably with rich clubs, giving rise to an alternative and complementary interpretation of the functional roles of specific brain regions. Finally, we demonstrated that, using the modified module detection approach, we can detect modules in a developmental dataset that track normative patterns of maturation. Collectively, these findings support the hypothesis that brain networks are composed of modules and provide additional insight into the function of those modules.
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april 2018 by nhaliday
The Power of Abortion Policy - Marginal REVOLUTION
I provide new evidence on the relative “powers” of contraception and abortion policy in effecting the dramatic social transformations of the 1960s and 1970s. Trends in sexual behavior suggest that young women’s increased access to the birth control pill fueled the sexual revolution, but neither these trends nor difference-in-difference estimates support the view that this also led to substantial changes in family formation. Rather, the estimates robustly suggest that it was liberalized access to abortion that allowed large numbers of women to delay marriage and motherhood.
econotariat  marginal-rev  commentary  study  summary  economics  policy  intervention  sociology  gender  sex  fertility  demographics  demographic-transition  history  mostly-modern  cold-war  rot  roots  explanans  technology  microfoundations  nitty-gritty  sexuality  modernity  the-bones  general-survey  endogenous-exogenous  control  life-history  social-norms  medicine  abortion-contraception-embryo 
december 2017 by nhaliday
The 5 Biggest Tax Credits You Might Qualify For - TurboTax Tax Tips & Videos
One of the most substantial credits for taxpayers is the Earned Income Tax Credit. Established in 1975—in part to offset the burden of Social Security taxes and to provide an incentive to work—the EITC is determined by income and is phased in according to filing status: single, married filing jointly or either of those with children. Eligibility and the amount of the credit are based on adjusted gross income, earned income and investment income.

A person must be at least 25 years old and younger than 65 to qualify. If married, both spouses must have valid Social Security numbers and must have lived in the country for more than six months. If you may be claimed as a dependent on another filer's tax return, you do not qualify.

Those "married filing separately" do not qualify for the EITC, said Louis Barajas, a Santa Fe Springs, California-based financial planner and author who serves many low-to-moderate-income families in his boutique planning firm, Louis Barajas Wealth Planning.
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december 2017 by nhaliday
Hyperbolic angle - Wikipedia
A unit circle {\displaystyle x^{2}+y^{2}=1} x^2 + y^2 = 1 has a circular sector with an area half of the circular angle in radians. Analogously, a unit hyperbola {\displaystyle x^{2}-y^{2}=1} {\displaystyle x^{2}-y^{2}=1} has a hyperbolic sector with an area half of the hyperbolic angle.
nibble  math  trivia  wiki  reference  physics  relativity  concept  atoms  geometry  ground-up  characterization  measure  definition  plots  calculation  nitty-gritty  direction  metrics  manifolds 
november 2017 by nhaliday
Why is Earth's gravity stronger at the poles? - Physics Stack Exchange
The point is that if we approximate Earth with an oblate ellipsoid, then the surface of Earth is an equipotential surface,11 see e.g. this Phys.SE post.

Now, because the polar radius is smaller than the equatorial radius, the density of equipotential surfaces at the poles must be bigger than at the equator.

Or equivalently, the field strength22 gg at the poles must be bigger than at the equator.
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september 2017 by nhaliday

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