Tag Archives: Research

Physicist Frank Tipler on the usefulness of refereed journals, then and now

I really enjoyed this episode of the ID the Future podcast.

Description:

Is the only good science peer-reviewed science? Are there other avenues to present important scientific work? On this episode of ID The Future, Professor of Mathematics Dr. Frank Tipler discusses the pros and cons of peer review and refereed journals. More than fifty peer-reviewed papers discussing intelligent design have been published, but critics of the theory still proclaim a lack of peer-reviewed work as an argument. Listen in as Tipler shows how things have changed with the peer review process and what we can do about it.

About the speaker:

Frank Tipler was born and raised in Andalusia, Alabama. His first science project was a letter written in kindergarten to Werner von Braun, whose plans to launch the first earth satellite were then being publicized. Von Braun’s secretary replied, regretting he had no rocket fuel for Tipler as requested. By age five, he knew he wanted to be an astrophysicist. But he’s always been a polymath, reading widely across disciplines and into the history of science and theology. After graduating from MIT and the University of Maryland, he did postdoctoral work at Oxford and Berkeley, before arriving at Tulane in 1981.

William Lane Craig often cites a book by two physicists named “Barrow and Tipler” called “The Anthropic Cosmological Principle” (Oxford University Press, 1988) in his debates to support the fine-tuning argument.  This Tipler is that Tipler! Dr. Tipler is a master of the physics of cosmology and fine-tuning. However, I definitely disagree with him on some of his ideas.

The MP3 file is here. (17 minutes)

Topics:

  • the changing nature of refereed journals and peer-review
  • previously, the refereed journals were more about communication
  • now, ideas are not taken seriously unless they are published in these journals
  • the problem is that referees can be motivated by ideological concerns
  • before, an obscure patent official named Einstein submitted a physics paper and it was published
  • now, an uncredited person would not be able to have a brilliant paper published like that
  • today, there are so many scientists that many more papers are submitted
  • although it restricts BAD ideas, it can also end up censoring NEW ideas
  • the problem is that any really brilliant idea has to go against the prevailing consensus
  • peer-review may actually be holding back the progress of science by censoring NEW ideas
  • some referees are motivated to censor ideas that undercut their reputation and prestige
  • Dr. Tipler was told to remove references to intelligent design before one of his papers would be published
  • how scientists with NEW ideas can bypass the system of refereed journals when they are censored
  • peer-review has value when it finds errors, but not when it suppresses new ideas

I think this one is a must listen. I like to refer to peer-reviewed evidence when arguing, but it’s not perfect, for sure.

Study: fathers are important for the development of children’s brains

Fathers and children
Fathers and children

The study was reported in the Wall Street Journal.

Excerpt:

Dr. Braun’s group found that at 21 days, the fatherless animals had less dense dendritic spines compared to animals raised by both parents, though they “caught up” by day 90. However, the length of some types of dendrites was significantly shorter in some parts of the brain, even in adulthood, in fatherless animals.

“It just shows that parents are leaving footprints on the brain of their kids,” says Dr. Braun, 54 years old.

The neuronal differences were observed in a part of the brain called the amygdala, which is related to emotional responses and fear, and the orbitofrontal cortex, or OFC, the brain’s decision-making center.

[…]The balance between these two brain parts is critical to normal emotional and cognitive functioning, according to Dr. Braun. If the OFC isn’t active, the amygdala “goes crazy, like a horse without a rider,” she says. In the case of the fatherless pups, there were fewer dendritic spines in the OFC, while the dendrite trees in the amygdala grew more and longer branches.

A preliminary analysis of the degus’ behavior showed that fatherless animals seemed to have a lack of impulse control, Dr. Braun says. And, when they played with siblings, they engaged in more play-fighting or aggressive behavior.

In a separate study in Dr. Braun’s lab conducted by post-doctoral researcher Joerg Bock, degu pups were removed from their caregivers for one hour a day. Just this small amount of stress leads the pups to exhibit more hyperactive behaviors and less focused attention, compared to those who aren’t separated, Dr. Braun says. They also exhibit changes in their brain.

The basic wiring between the brain regions in the degus is the same as in humans, and the nerve cells are identical in their function. “So on that level we can assume that what happens in the animal’s brain when it’s raised in an impoverished environment … should be very similar to what happens in our children’s brain,” Dr. Braun says.

Read the whole thing.

I think this is important because we hear so much today that marriage can be redefined, that having one of each parent doesn’t matter, that live-in boyfriends and stepfathers have the same motivation to care for a woman’s children as the biological father does. We don’t want to make judgments, even if setting boundaries is better for children. A child’s well-being is enormously affected by the woman’s choice of biological father.  You can’t have it both ways – either we are going to judge women who choose men who don’t have the desire to commit to marriage, and do the father role, OR we are going to take things away from children by encouraging women to choose men based on “feelings” instead of abilities. Lowering moral standards and removing moral obligations hurts children. It sounds so nice when we tell women, “you can do whatever you feel like, and just forget about responsibilities, expectations and obligations”, but letting women be guided by their feelings harms children. My stock broker makes me feel uncomfortable because he knows more than I do, and does not respect my opinion. But I pay him to make investment decisions for me. I mustn’t let my pride get in the way of letting him do his job – a job he is more qualified than I am to do. Let him do his job.

Here’s a related question: Are biological fathers or unrelated men more dangerous for children?

This article from the Weekly Standard answers the question.

Excerpt:

A March 1996 study by the Bureau of Justice Statistics contains some interesting findings that indicate just how widespread the problem may be. In a nationally representative survey of state prisoners jailed for assaults against or murders of children, fully one-half of respondents reported the victim was a friend, acquaintance, or relative other than offspring. (All but 3 percent of those who committed violent crimes against children were men.) A close relationship between victim and victimizer is also suggested by the fact that three-quarters of all the crimes occurred in either the perpetrator’s home or the victim’s.

A 1994 paper published in the Journal of Comparative Family Studies looked at 32,000 documented cases of child abuse. Of the victims, only 28 percent lived with both biological parents (far fewer than the 68 percent of all children who live with both parents); 44 percent lived with their mother only (as do 25 percent of all children); and 18 percent lived with their mother and an unrelated adult (double the 9 percent of all children who live with their mother and an unrelated adult).

These findings mirror a 1993 British study by the Family Education Trust, which meticulously explored the relationship between family structure and child abuse. Using data on documented cases of abuse in Britain between 1982 and 1988, the report found a high correlation between child abuse and the marital status of the parents.

Specifically, the British study found that the incidence of abuse was an astounding 33 times higher in homes where the mother was cohabiting with an unrelated boyfriend than in stable nuclear families. Even when the boyfriend was the children’s biological father, the chances of abuse were twice as high.

These findings are consonant with those published a year earlier by Leslie Margolin of the University of Iowa in the journal Child Abuse and Neglect. Prof. Margolin found that boyfriends were 27 times more likely than natural parents to abuse a child. The next-riskiest group, siblings, were only twice as likely as parents to abuse a child.

More recently, a report by Dr. Michael Stiffman presented at the latest meeting of the American Academy of Pediatrics, in October, studied the 175 Missouri children under the age of 5 who were murdered between 1992 and 1994. It found that the risk of a child’s dying at the hands of an adult living in the child’s own household was eight times higher if the adult was biologically unrelated.

The Heritage Foundation’s Patrick Fagan discovered that the number of child-abuse cases appeared to rise in the 1980s along with the general societal acceptance of cohabitation before, or instead of, marriage. That runs counter to the radical-feminist view, which holds that marriage is an oppressive male institution of which violence is an integral feature. If that were true, then child abuse and domestic violence should have decreased along with the rise in cohabitation.

Heritage also found that in the case of very poor children (those in households earning less than $ 15,000 per year), 75 percent lived in a household where the biological father was absent. And 50 percent of adults with less than a high-school education lived in cohabitation arrangements. “This mix — poverty, lack of education, children, and cohabitation — is an incubator for violence,” Fagan says.

Why, then, do we ignore the problem? Fagan has a theory: “It is extremely politically incorrect to suggest that living together might not be the best living arrangement.”

The moral of the story is that it is a lot safer for children if we promote marriage as a way of attaching mothers and fathers to their children. Fathers who have a biological connection to children are a lot less likely to harm them. We should probably be teaching women to choose men who have a certain tenderness towards people they mentor or nurture, as well. These things are not free, you have to persuade women to value the male tendency to want to lead / guide / mentor. A lot of social problems like child poverty, promiscuity and violence cannot be solved by replacing a father with a check from the government. We need to support fathers by empowering them in their traditional roles. Let the men lead. Swallow your feminist instincts, and prefer men who take seriously their role of leading others upward.

Walter Bradley: three scientific evidences that point to a designed universe

Dr. Walter L. Bradley
Dr. Walter L. Bradley

Dr. Walter L. Bradley (C.V. here) is the Distinguished Professor of Engineering at Baylor.

Here’s a bio:

Walter Bradley (B.S., Ph.D. University of Texas at Austin) is Distinguished Professor of Engineering at Baylor. He comes to Baylor from Texas A&M University where he helped develop a nationally recognized program in polymeric composite materials. At Texas A&M, he served as director of the Polymer Technology Center for 10 years and as Department Head of Mechanical Engineering, a department of 67 professors that was ranked as high as 12th nationally during his tenure. Bradley has authored over 150 refereed research publications including book chapters, articles in archival journals such as the Journal of Material Science, Journal of Reinforced Plastics and Composites, Mechanics of Time-Dependent Materials, Journal of Composites Technology and Research, Composite Science and Technology, Journal of Metals, Polymer Engineering and Science, and Journal of Materials Science, and refereed conference proceedings.

Dr. Bradley has secured over $5.0 million in research funding from NSF grants (15 yrs.), AFOSR (10 years), NASA grants (10 years), and DOE (3 years). He has also received research grants or contracts from many Fortune 500 companies, including Alcoa, Dow Chemical, DuPont, 3M, Shell, Exxon, Boeing, and Phillips.

He co-authored The Mystery of Life Origin: Reassessing Current Theories and has written 10 book chapters dealing with various faith science issues, a topic on which he speaks widely.

He has received 5 research awards at Texas A&M University and 1 national research award. He has also received two teaching awards. He is an Elected Fellow of the American Society for Materials and the American Scientific Affiliation (ASA), the largest organization of Christians in Science and Technology in the world. He is President elect of the ASA and will serve his term in 2008.

You can read more about his recent research in this article from Science Daily.

Below, I analyze a lecture entitled “Is There Scientific Evidence for an Intelligent Designer?”. Dr. Bradley explains how the progress of science has made the idea of a Creator and Designer of the universe more acceptable than ever before.

The MP3 file is here.

Evidence #1: The design of the universe

1. The correspondence of natural phenomena to mathematical law

  • All observations of physical phenomena in the universe, such as throwing a ball up in the air, are described by a few simple, elegant mathematical equations.

2. The fine-tuning of physical constants and rations between constants in order to provide a life-permitting universe

  • Life has certain minimal requirements; long-term stable source of energy, a large number of different chemical elements, an element that can serve as a hub for joining together other elements into compounds, etc.
  • In order to meet these minimal requirements, the physical constants, (such as the gravitational constant), and the ratios between physical constants, need to be withing a narrow range of values in order to support the minimal requirements for life of any kind.
  • Slight changes to any of the physical constants, or to the rations between the constants, will result in a universe inhospitable to life.
  • The range of possible ranges over 70 orders of magnitude.
  • Although each individual selection of constants and ratios is as unlikely as any other selection, the vast majority of these possibilities do not support the minimal requirements of life of any kind. (In the same way as any hand of 5 cards that is dealt is as likely as any other, but you are overwhelmingly likely NOT to get a royal flush. In our case, a royal flush is a life-permitting universe).

Examples of finely-tuned constants and ratios: (there are more examples in the lecture)

a) The strong force: (the force that binds nucleons (= protons and neutrons) together in nucleus, by means of meson exchange)

  • if the strong force constant were 2% stronger, there would be no stable hydrogen, no long-lived stars, no hydrogen containing compounds. This is because the single proton in hydrogen would want to stick to something else so badly that there would be no hydrogen left!
  • if the strong force constant were 5% weaker, there would be no stable stars, few (if any) elements besides hydrogen. This is because you would NOT be able to build up the nuclei of the heavier elements, which contain more than 1 proton.
  • So, whether you adjust the strong force up or down, you lose stars than can serve as long-term sources of stable energy, or you lose chemical diversity, which is necessary to make beings that can perform the minimal requirements of living beings. (see below)

b) The conversion of beryllium to carbon, and carbon to oxygen

  • Life requires carbon in order to serve as the hub for complex molecules, but it also requires oxygen in order to create water.
  • Carbon is like the hub wheel in a tinker toy set: you can bind other elements together to more complicated molecules (e.g. – “carbon-based life), but the bonds are not so tight that they can’t be broken down again later to make something else.
  • The carbon resonance level is determined by two constants: the strong force and electromagnetic force.
  • If you mess with these forces even slightly, you either lose the carbon or the oxygen.

3. Fine-tuning to allow a habitable planet

  • A number of factors must be fine-tuned in order to have a planet that supports life
  • Initial estimates predicted abundant life in the universe, but revised estimates now predict that life is almost certainly unique in the galaxy, and probably unique in the universe.
  • Even though there are lots of stars in the universe, the odds are against any of them supporting complex life.
  • Here are just a few of the minimal requirements for habitability: must be a single star solar system, in order to support stable planetary orbits, the planet must be the right distance from the sun in order to have liquid water at the surface, the planet must sufficient mass in order to retain an atmosphere, etc.

The best non-theistic response to this argument is to postulate a multiverse, but that is very speculative and there is no experimental evidence that supports it.

Evidence #2: The origin of the universe

1. The progress of science has shown that the entire physical universe came into being out of nothing (= “the big bang”). It also shows that the cause of this creation event is non-physical and non-temporal. The cause is supernatural.

  • Atheism prefers an eternal universe, to get around the problem of a Creator having to create the universe.
  • Discovery #1: Observations of galaxies moving away from one another confirms that the universe expanded from a single point.
  • Discovery #2: Measurements of the cosmic background radiation confirms that the universe exploding into being.
  • Discovery #3: Predictions of elemental abundances prove that the universe is not eternal.
  • Discovery #4:The atheism-friendly steady-state model and oscillating model were both falsified by the evidence.
  • And there were other discoveries as well, mentioned in the lecture.

The best non-theistic response to this argument is to postulate a hyper-universe outside of ours, but that is very speculative and there is no experimental evidence that supports it.

Evidence #3: The origin of life

1. The progress of science has shown that the simplest living organism contains huge amounts of biological information, similar to the Java code I write all day at work. This is a problem for atheists, because the sequence of instructions in a living system has to come together all at once, it cannot have evolved by mutation and selection – because there was no replication in place prior to the formation of that first living system!

  • Living systems must support certain minimum life functions: processing energy, storing information, and replicating.
  • There needs to be a certain amount of complexity in the living system that can perform these minimum functions.
  • But on atheism, the living system needs to be simple enough to form by accident in a pre-biotic soup, and in a reasonable amount of time.
  • The minimal functionality in a living system is a achieved by DNA, RNA and enzymes. DNA and RNA are composed of sequences of proteins, which are in turn composed of sequences of amino acids.

Consider the problems of building a chain of 100 amino acids

  • The amino acids must be left-handed only, but left and right kinds are equally abundant in nature. How do you sort out the right-handed ones?
  • The amino acids must be bound together using peptide bonds. How do you prevent other types of bonds?
  • Each link of the amino acid chain needs to be carefully chosen such that the completed chain with fold up into a protein. How do you choose the correct amino acid for each link from the pool of 20 different kinds found in living systems?
  • In every case, a human or other intelligence could solve these problems by doing what intelligent agents do best: making choices.
  • But who is there to make the choices on atheism?

The best current non-theistic response to this is to speculate that aliens may have seeded the Earth with life at some point in the past.

The problem of the origin of life is not a problem of chemistry, it is a problem of engineering. Every part of car functionality can be understood and described using the laws of physics and chemistry. But an intelligence is still needed in order to assemble the components into a system that has the minimal requirements for a functioning vehicle.