The crystal structures of caesium di­hydrogen arsenate(V) bis­[tri­hydrogen arsen­ate(V)], Cs(H2AsO4)(H3AsO4)2, ammonium di­hydrogen arsenate(V) tri­hydrogen arsenate(V), NH4(H2AsO4)(H3AsO4), and dilithium bis­(di­hydrogen phosphate), Li2(H2PO4)2, were solved from single-crystal X-ray diffraction data. NH4(H2AsO4)(H3AsO4), which was hydro­thermally synthesized (T = 493 K), is homeotypic with Rb(H2AsO4)(H3AsO4), while Cs(H2AsO4)(H3AsO4)2 crystallizes in a novel structure type and Li2(H2PO4)2 represents a new polymorph of this composition. The Cs and Li compounds grew at room temperature from highly acidic aqueous solutions. Li2(H2PO4)2 forms a three-dimensional (3D) framework of PO4 tetra­hedra sharing corners with Li2O6 dimers built of edge-sharing LiO4 groups, which is reinforced by hydrogen bonds. The two arsenate compounds are characterized by a 3D network of AsO4 groups that are connected solely via multiple strong hydrogen bonds. A statistical evaluation of the As—O bond lengths in singly, doubly and triply protonated AsO4 groups gave average values of 1.70 (2) Å for 199 As—OH bonds, 1.728 (19) Å for As—OH bonds in HAsO4 groups, 1.714 (12) Å for As—OH bonds in H2AsO4 groups and 1.694 (16) Å for As—OH bonds in H3AsO4 groups, and a grand mean value of 1.667 (18) Å for As—O bonds to nonprotonated O atoms.

An operationally simple and time-efficient approach has been developed for the synthesis of racemic N-substituted 3-(2-aryl-2-oxoeth­yl)-3-hy­droxy­indolin-2-ones by a piperidine-catalysed aldol reaction between aryl methyl ketones and N-alkyl­isatins. These aldol products were used successfully as strategic inter­mediates for the preparation of N-substituted (E)-3-(2-hetaryl-2-oxo­ethyl­idene)indolin-2-ones by a stereoselective dehydration reaction under acidic conditions. The products have all been fully characterized by 1H and 13C NMR spectroscopy, by mass spectrometry and, for a representative selection, by crystal structure analysis. In each of (RS)-1-benzyl-3-hy­droxy-3-[2-(4-meth­oxy­phen­yl)-2-oxoeth­yl]indolin-2-one, C24H21NO4, (Ic), and (RS)-1-benzyl-3-{2-[4-(di­methyl­amino)­phen­yl]-2-oxoeth­yl}-3-hy­droxy­indolin-2-one, C25H24N2O3, (Id), inversion-related pairs of mol­ecules are linked by O—H⋯O hydrogen bonds to form R22(10) rings, which are further linked into chains of rings by a combination of C—H⋯O and C—H⋯π(arene) hydrogen bonds in (Ic) and by C—H⋯π(arene) hydrogen bonds in (Id). The mol­ecules of (RS)-1-benzyl-3-hy­droxy-3-[2-oxo-2-(pyridin-4-yl)eth­yl]indolin-2-one, C22H18N2O3, (Ie), are linked into a three-dimensional framework structure by a combination of O—H⋯N, C—H⋯O and C—H⋯π(arene) hydrogen bonds. (RS)-3-[2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoeth­yl]-1-benzyl-3-hy­droxy­indolin-2-one, C24H19NO5, (If), crystallizes with Z' = 2 in the space group Poverline{1} and the mol­ecules are linked into com­plex sheets by a combination of O—H⋯O, C—H⋯O and C—H⋯π(arene) hydro­gen bonds. In each of (E)-1-benzyl-3-[2-(4-fluoro­phen­yl)-2-oxo­ethyl­idene]indolin-2-one, C23H16FNO2, (IIa), and (E)-1-benzyl-3-[2-oxo-2-(thiophen-2-yl)ethylidene]indolin-2-one, C21H15NO2S, (IIg), the mol­ecules are linked into simple chains by a single C—H⋯O hydrogen bond, while those of (E)-1-benzyl-3-[2-oxo-2-(pyridin-4-yl)ethyl­idene]indolin-2-one, C22H16N2O2, (IIe), are linked by three C—H⋯O hydrogen bonds to form sheets which are further linked into a three-dimensional structure by C—H⋯π(arene) hydrogen bonds. There are no hydrogen bonds in the structures of either (E)-1-benzyl-3-[2-(4-meth­oxy­phen­yl)-2-oxo­ethyl­idene]indolin-2-one, C24H19NO3, (IIc), or (E)-1-benzyl-5-chloro-3-[2-(4-chloro­phen­yl)-2-oxo­ethyl­idene]indolin-2-one, C23H15Cl2NO2, (IIh), but the mol­ecules of (IIh) are linked into chains of π-stacked dimers by a combination of C—Cl⋯π(arene) and aromatic π–π stacking inter­actions.

The com­pound poly[2-hy­droxy-N-methyl­ethan-1-aminium [μ3-cyanido-κ3C:C:N-di-μ-cyanido-κ4C:N-dicuprate(I)]], {(C3H10NO)[Cu2(CN)3]}n or [meoenH]Cu2(CN)3, crystallizes in the tetra­gonal space group P43. The structure consists of a three-dimensional (3D) anionic CuICN network with noncoordinated protonated N-methyl­ethano­lamine cations providing charge neutrality. Pairs of cuprophilic Cu atoms are bridged by the C atoms of μ3-cyanide ligands, which link these units into a 43 spiral along the c axis. The spirals are linked together into a 3D anionic network by the two other cyanide groups. The cationic moieties are linked into their own 43 spiral via N—H⋯O and O—H⋯O hydrogen bonds, and the cations inter­act with the 3D network via an unusual pair of N—H⋯N hydrogen bonds to one of the μ2-cyanide groups. Thermogravimetric analysis indicates an initial loss of the base cation and one cyanide as HCN at temperatures in the range 130–250 °C to form CuCN. We show how loss of a specific cyanide group from the 3D CuCN structure could form the linear CuCN structure. Further heating leaves a residue of elemental copper, isolated as the oxide.

Crystals of the rare earth metal polytelluride LaTe1.82(1), namely, lanthanum telluride (1/1.8), have been grown by molten alkali halide flux reactions and vapour-assisted crystallization with iodine. The two-dimensionally incommensurately modulated crystal structure has been investigated by X-ray diffraction experiments. In contrast to the tetra­gonal average structure with unit-cell dimensions of a = 4.4996 (5) and c = 9.179 (1) Å at 296 (1) K, which was solved and refined in the space group P4/nmm (No. 129), the satellite reflections are not compatible with a tetra­gonal symmetry but enforce a symmetry reduction. Possible space groups have been derived by group–subgroup relationships and by consideration of previous reports on similar rare earth metal polychalcogenide structures. Two structural models in the ortho­rhom­bic superspace group, i.e. Pmmn(α,β,1 over 2)000(−α,β,1 over 2)000 (No. 59.2.51.39) and Pm21n(α,β,1 over 2)000(−α,β,1 over 2)000 (No. 31.2.51.35), with modulation wave vectors q1 = αa* + βb* + 1 over 2c* and q2 = −αa* + βb* + 1 over 2c* [α = 0.272 (1) and β = 0.314 (1)], have been established and evaluated against each other. The modulation describes the distribution of defects in the planar [Te] layer, coupled to a displacive modulation due to the formation of different Te anions. The bonding situation in the planar [Te] layer and the different Te anion species have been investigated by density functional theory (DFT) methods and an electron localizability indicator (ELI-D)-based bonding analysis on three different approximants. The temperature-dependent electrical resistance revealed a semiconducting behaviour with an estimated band gap of 0.17 eV.

A still from "POWER/RANGERS," a highly-produced Power Rangers fan film starring James Van Der Beek and Katee Sackhoff.

Update 2/28: The "POWER/RANGERS" film is back on YouTube and Vimeo. Watch the censored YouTube version with a new viewer discretion disclaimer here:

POWER/RANGERS

You can also watch the Vimeo version, featuring more adult content. The video's description emphasizes its lack of connection in any official way to the Power Rangers:

"Deboot of the Power Rangers. My take on the FAN FILM. Not a pilot, not a series, not for profit, strictly for exhibition. This is a bootleg experiment not affiliated or endorsed by Saban Entertainment or Lionsgate nor is it selling any product. I claim no rights to any of the characters (don't send me any money, not kickstarted, this film is free). This is the NSFW version. An alternate safe version is on youtube."

Director Joseph Kahn tells Deadline, "They put these disclaimers on so kids so don’t confuse our super-violent film with their Power Rangers brand. There are no hard feelings. We signed contracts. We can play it anywhere we want on all platforms. I think they realized that people just want to see it."

Previously: A Power Rangers short film went viral this week, starring Katee Sackhoff (Battlestar Galactica) and James Van Der Beek (Dawson!) in a Tarantino-meets-sci-fi take on a dark future for the formerly Mighty Morphin'.

The company behind the 22-year history of the kids/toy icons issued takedown requests, leading to it being pulled from Vimeo and, on Thursday afternoon, a toned-down version being taken off YouTube. At the time, the video had received over 10 million views. It's still available to watch in this Facebook embed from the producer's Facebook page:

POWER/RANGERS Facebook embed

The film was directed by Joseph Kahn, best known as the music video director behind clips like Taylor Swift's "Blank Space" as well as videos for Britney Spears, U2 and others, and produced by Adi Shankar, who was also behind "The Grey" and "Dredd." Kahn co-wrote the film with Van Der Beek and lesser-known writer Dutch Southern.

This isn't the first quasi-legal fan film produced by Shankar. He's also done the same with Marvel Comics characters the Punisher and Venom. The Punisher film even had one of the actors who played the character on screen, Thomas Jane.

Watch those films (Warning: Adult language and violence):

Punisher short

Venom short

Kahn tells HitFix that Shankar came to him, offering him the chance to reboot an existing property.

One reason for the current legal contentiousness: The Power Rangers are set to hit the big screen next year in a Lionsgate film. Kahn says that, if that film was offered to him, he wouldn't be interested.

"I wouldn't even want to make 'Power Rangers: The Movie' for real," Kahn told HitFix. "Like if I had to make a 'Power Rangers' movie, this is it. It's 14 minutes long, and it's violent, and this is what I have in me. If they offered me the $200 million version, the PG-13 version, I literally wouldn't do it."

There's been a strong response to the video, but the response has been mixed — among the original Power Rangers. The original Green Ranger, actor Jason David Frank, said on Facebook that he was approached to be in the movie but declined. (The film's director denies this claim, saying that Frank must have confused them with another project.) Frank also criticized the adult content.

"I'm just a PG-13 guy," Frank said. "The cuss words, the drugs, all this other stuff, it doesn't fly with me." He says that he thinks the Power Rangers are still connected with kids, and he didn't like the idea of doing a dark and gritty version in that context. (Watch his video below.)

Green Ranger video

But the original Pink Ranger, actress Amy Jo Johnson, gave the film her stamp of approval, which Sackhoff enthusiastically responded to.

Amy Jo Johnson tweet 1

Amy Jo Johnson tweet 2

Katee Sackhoff tweet

Sackhoff told the Nerdcore Movement site that she loves fan films.

"Doing a fan video is kind of the biggest honor you can give a franchise. It’s something that inspired you so much that you want to create," Sackhoff said.

Kahn defended "POWER/RANGERS" on Twitter as being protected due to it being a satire and also cited fair use laws and free speech. He argued that there are lots of other fan films and pointed out that YouTube showed more leniency, leaving it up.

"Every image in POWER/RANGERS is original footage," Kahn wrote in a series of tweets to Vimeo. "Nothing was pre-existing. There is no copyrighted footage in the short."

He also said that it's being given away for free and that Kahn paid for it himself.

Kahn tweet

"It is just as if I drew a pic of Power Rangers on a napkin and I gave it to my friend," Kahn wrote. "Is it illegal to give pic I drew of a character on a napkin to someone for free? No. The world is watching your actions right now."

In a touch of irony, the video had been selected as a Vimeo staff pick before the service took it down. They also responded to complaints about it being taken down, saying that they had to due to the Digital Millennium Copyright Act, and that they would restore the video immediately if the copyright claim was withdrawn, telling fans to complain to Power Rangers copyright holder Saban.

YouTube tweet

Despite the short film's success, hardcore Power Rangers fans are less sure about it, Shamus Kelley tells KPCC. Kelley created his own Rangers fan series, as well as co-hosting a Power Rangers podcast with over 300 episodes so far.

Casual fans are "far more open to the idea of dark/gritty because they see it as the show growing up with them," Kelley says. To hardcore fans, "it was either an abomination or the greatest unintended parody ever."

Kahn tells HitFix that the parody, of both Power Rangers and fan films in general, is definitely intended.

"The dark and gritty reboot thing is such a cliché that the intention was not only to make it dark and gritty but make it even darker and grittier than you could possibly imagine, hence the brains, the blood and the violence and the sex," Kahn said.

Kahn is set to answer questions about the film in a Reddit AMA on Friday at 2 p.m. We'll have to wait and see if there will be anywhere to watch it at the time.

Take a look behind the scenes of "POWER/RANGERS" via posts from the director and stars:

Behind the scenes tweet

Behind the scenes Instagram

Fight training 1

Fight training 2

The film also includes a techno take on the classic Power Rangers theme song, which you can listen to here:

Techno Power Rangers

This story has been updated.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Structure-mining finds and returns the best-fit structures from structural databases given a measured pair distribution function data set. Using databases and heuristics for automation it has the potential to save experimenters a large amount of time as they explore candidate structures from the literature.

Using mineralogical data, it is demonstrated that chemical simplicity measured as an amount of Shannon information per atom on average corresponds to higher symmetry measured as an order of the point group of a mineral, which provides a modern formulation of the Fedorov–Groth law.

A Washington, D.C., think tank issued a report that says California Virtual Acadmies, a major online school network, has had more dropouts than graduates in most years.; Credit: Jeff J Mitchell/Getty Images

A report released Thursday by a labor group-affiliated Washington think tank is questioning the education provided by an online public school program that says it is in a union fight.

The report by In the Public Interest, a group funded by unions, says the thousands of students enrolled in the California Virtual Academies online public school known as CAVA are receiving a  substandard education by most measures.

"So in every year since CAVA began graduating students, with the exception of 2013, it has produced more dropouts than graduates,” said Shahrzad Habibi, who authored the report.

She said state test score data show that 71 percent of California public schools performed better than the virtual academies.

The report calls on California officials to investigate the online schools’ administration and finances.

California Virtual Academies enrolls about 14,000 kindergarten to 12th grade students through 11 sites, including those in Los Angeles, San Diego, and Fresno. It is run by a national for-profit company called K12 Inc.

In a written statement, California Virtual Academies did not dispute the reported low student performance numbers, but denied other allegations in the study, which it called “inaccurate and deeply flawed.”

“The report relies primarily on misinformation from the California Teachers Association — the union currently engaged in a coordinated and well-funded distortion campaign to unionize the eleven independent California Virtual Academies charter schools.”

In the Public Interest, which supports the work of labor unions, partnered with the American Federation of Teachers last year on a website to track for-profit charter school companies.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Björn Eismann
Apr 15, 2020; 0:jcs.245043v1-jcs.245043
TOOLS AND RESOURCES

The impact of polluted urban soil on trees is highlighted in a recent study from Latvia. The researchers found that high salt levels from de-icing chemicals and nutrient imbalance in soil damaged lime trees growing in the city of Riga.

FIS, a financial services technology company, has announced...

A bold national initiative is needed to reduce the enormous health burden of sexually transmitted diseases (STDs) in the United States, according to a new report from a committee of the Institute of Medicine.

More targeted aircraft testing and simulation should be conducted to uncover design characteristics in new flight control systems that -- in rare circumstances -- may mislead pilots and result in unstable or dangerous flight conditions, says a new report by a National Research Council committee.

Scientific evidence is insufficient to prove or disprove the theory that exposure to polio vaccine contaminated with a monkey virus between 1955 and 1963 has triggered cancer in humans, says a new report from the Institute of Medicine of the National Academies.

Government authorities in the United States and Canada should use the current Dietary Reference Intakes (DRIs) to update nutrition information on food and dietary supplement labels so that consumers can compare products more easily and make informed food choices based on the latest science, says a new report from the Institute of Medicine of the National Academies.

Based on a thorough review of clinical and epidemiological studies, neither the mercury-based vaccine preservative thimerosal nor the measles-mumps-rubella (MMR) vaccine are associated with autism, says a new report from the Institute of Medicine of the National Academies.

Use of protective face coverings will be one of many strategies used to slow or prevent transmission of the flu virus in the event of a pandemic, even though scientific evidence about the effectiveness of inexpensive, disposable medical masks and respirators against influenza is limited.

Medication errors are among the most common medical errors, harming at least 1.5 million people every year, says a new report from the Institute of Medicine of the National Academies.

A new report from the Institute of Medicine finds suggestive but limited evidence that exposure to Agent Orange and other herbicides used during the Vietnam War is associated with an increased chance of developing high blood pressure in some veterans.

A congressionally mandated report from the National Research Council finds serious deficiencies in the nations forensic science system and calls for major reforms and new research.

Evidence exists that people who lived or worked at Camp Lejeune Marine Base in North Carolina between the 1950s and 1985 were exposed to the industrial solvents tricholorethylene (TCE) or perchloroethylene (PCE) in their water supply, but strong scientific evidence is not available to determine whether health problems among those exposed are due to the contaminants, says a new report from the National Research Council.

A new report from the Institute of Medicine finds suggestive but limited evidence that exposure to Agent Orange and other herbicides used during the Vietnam War is associated with an increased chance of developing ischemic heart disease and Parkinsons disease for Vietnam veterans.

Most Americans and Canadians up to age 70 need no more than 600 international units (IUs) of vitamin D per day to maintain health, and those 71 and older may need as much as 800 IUs, says a new report from the Institute of Medicine.

Despite being used for several decades, test-based incentives have not consistently generated positive effects on student achievement, says a new report from the National Research Council.

The U.S. electric power delivery system is vulnerable to terrorist attacks that could cause much more damage to the system than natural disasters such as Hurricane Sandy, blacking out large regions of the country for weeks or months and costing many billions of dollars, says a newly released report by the National Research Council.

Rates of physical and sexual abuse of children have declined over the last 20 years, but for reasons not fully understood, says a new report from the Institute of Medicine. Yet, reports of psychological and emotional child abuse have risen in the same period, and data vary significantly as to whether child neglect is increasing, decreasing, or remaining constant.

Given the minimal impact of long prison sentences on crime prevention and the negative social consequences and burdensome financial costs of U.S. incarceration rates, which have more than quadrupled in the last four decades, the nation should revise current criminal justice policies to significantly reduce imprisonment rates, says a new report from the National Research Council.

A new report from the National Research Council has upheld the listing of styrene as “reasonably anticipated to be a human carcinogen” in the National Toxicology Program’s 12th Report on Carcinogens (RoC).

There would not be sufficient benefit to updating estimates of the social cost of carbon (SCC) within a year based only on the revision of a specific climate parameter in the existing framework used by the government’s interagency group to measure the SCC, says a new interim report from the National Academies of Sciences, Engineering, and Medicine.

Potentially useful biomarker tests for molecularly targeted therapies are not being adopted appropriately into clinical practice because of a lack of common evidentiary standards necessary for regulatory, reimbursement, and treatment decisions, says a new report by the National Academies of Sciences, Engineering, and Medicine.

It is possible to end the transmission of hepatitis B and C and prevent further sickness and deaths from the diseases, but time, considerable resources, and attention to various barriers will be required, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The U.S. Department of Health and Human Services (HHS) should lead efforts among federal partners and stakeholders to design, implement, and evaluate a multipronged, evidence-based national strategy to reduce stigma toward people with mental and substance use disorders, says a new report from the National Academies of Sciences, Engineering, and Medicine.

To make the world safer against future infectious disease threats, national health systems should be strengthened, the World Health Organization’s emergency and outbreak response activities should be consolidated and bolstered, and research and development should be enhanced, says a new Policy Forum article that appears in the May 19 edition of PLOS Medicine.