Free radical scavenging properties of melanin: Interaction of eu- and pheo-melanin models with reducing and oxidising radicals. Abstract The human skin and eye melanin is commonly viewed as an efficient photoprotective agent.
To elucidate the molecular mechanism of the melanin-dependent photoprotection, we studied the interaction of two synthetic melanins, dopa-melanin and cysteinyldopa-melanin, with a wide range of oxidising and reducing free radicals using the pulse radiolysis technique. We have found that although both types of free radicals could efficiently interact with the synthetic melanins, their radical scavenging properties depended, in a complex way, on the redox potential, the electric charge and the lifetime of the radicals.
Repetitive pulsing experiments, in which the free radicals, probing the polymer redox sites, were generated from four different viologens, indicated that the eumelanin model had more reduced than oxidised groups accessible to reaction with the radicals. Keywords Melanin Antioxidant Photoprotection Free radical scavenger Oxidative stress Pulse radiolysis Redox properties View full text. Jordan Peterson: It’s ideology vs. science in psychology’s war on boys and men. The American Psychological Association (APA) recently released its Guidelines for Psychological Practice with Boys and Men.
It manages to be simultaneously predictable, reprehensible, infuriating and disheartening — no mean feat for a single document. Make no mistake about it: this document constitutes an all-out assault on masculinity — or, to put it even more bluntly, on men. The coup of the APA undertaken by the ideologues is now complete. The field has been compromised, perhaps fatally. And the damnable guidelines provide sufficient, but by no means exhaustive, evidence of that.
Why should we care? We cannot allow ideology and political correctness to prevail over science. State Child Support Laws DESTROY Families. While it obviously takes money to raise children, existing child support laws create fatherless kids.
Calls to restructure child support aren’t new as editorials have appeared in The Washington Post, The New York Times, The Denver Post, The Baltimore Sun, The Boston Globe, The Charleston Post And Courier and in a report by National Public Radio. Rhetorical Discipline. Fidelbogen’s The Practice of Rhetorical Discipline is a brief, and I think excellent, guide for framing discussion on nearly any topic although he has written it specifically to frame discussion of feminism and counter-feminism.
With his kind permission, I have reposted it here. I have not edited it for content, but have done some reformatting to fit the aesthetics of my site. By Fidelbogen @ The Counter-Feminist Rhetoric is the art of persuasion. And since persuasion is a matter of prime importance, rhetoric must on no account be neglected, but rather subjected to the requirements of a discipline. In the present talk I purposely exclude the topic of fallacious argument. Very well. A grappling point is anything in the form or content of your communication that gives your enemy an edge, an angle, or an opening. The opponents of feminism are famous for speaking their minds “not wisely but too well”. Secondly, that they will use an unseemly or undignified tone. There are exceptions. The Catalog of Anti-Male Shaming Tactics. Also known as The Anti-Male Shaming Tactics Catalogue “Shaming tactics.”
This phrase is familiar to many Men’s Rights Activists. It conjures up the histrionic behavior of female detractors who refuse to argue their points with logic. Yet women are not the only ones guilty of using shaming tactics against men. Male gynocentrists use them, too. Anyway, it might be helpful to categorize the major shaming tactics that are used against men whenever a discussion arises about feminism, men’s issues, romance, etc. Charge of Irascibility (Code Red) Discussion: The target is accused of having anger management issues.
. • “You’re bitter!” Response: Anger is a legitimate emotion in the face of injustice. Charge of Cowardice (Code Yellow) Discussion: The target is accused of having an unjustifiable fear of interaction with women. . • “You need to get over your fear.” • “Step up and take a chance like a man!” Response: It is important to remember that there is a difference between bravery and stupidity.