2,788 research outputs found

    Turning Fake Data into Fake News: AI Training Set as a Trojan Horse of Misinformation

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    Generative artificial intelligence (AI) offers tremendous benefits to society. However, these benefits must be carefully weighed against the societal damage AI can also cause. Dangers posed by inaccurate training sets have been raised by many authors. These include racial discrimination, sexual bias, and other pernicious forms of misinformation. One remedy to such problems is to ensure that training sets used to teach AI models are correct and that the data upon which they rely are accurate. An assumption behind this correction is that data inaccuracies are inadvertent mistakes. However, a darker possibility exists: the deliberate seeding of training sets with inaccurate information for the purpose of skewing the output of AI models toward misinformation. As United States Supreme Court Justice Oliver Wendell Holmes, Jr., suggested, laws are not written for the ā€œgood man,ā€ because good people will tend to obey moral and legal principles in manners consistent with a well-functioning society even in the absence of formal laws. Rather, Justice Holmes proposed, that laws should be written with the ā€œbad manā€ in mind, because bad people will push the limits of acceptable behavior, engaging in cheating, dishonesty, crime, and other societally- damaging practices, unless constrained by carefully-designed laws and their accompanying penalties. This Article raises the spectre of the deliberate sabotage of training sets used to train AI models, with the purpose of perverting the outputs of such models. Examples include fostering revisionist histories, unjustly harming or rehabilitating the reputations of people, companies, or institutions, or even promoting as true ideas that are not. Strategic and clever efforts to introduce ideas into training sets that later manifest themselves as facts could aid and abet fraud, libel, slander, or the creation of ā€œtruth,ā€ the belief in which promote the interests of particular individuals or groups. Imagine, for example, a first investor who buys grapefruit futures, who then seeds training sets with the idea that grapefruits will become the new gold, with the result that later prospective investors who consult AI models for investment advice are informed that they should invest in grapefruit, enriching the first investor. Or, consider a malevolent political movement that hopes to rehabilitate the reputation of an abhorrent leader; if done effectively, this movement could seed training sets with sympathetic information about this leader, resulting in positive portrayals of this leader in the future outputs of trained AI models. This Article adopts the cautious attitude necessitated by Justice Holmesā€™ bad man, applying it to proactively stopping, or retroactively punishing and correcting, deliberate attempts to subvert the training sets of AI models. It offers legal approaches drawn from doctrines ranging from fraud, nuisance, libel, and slander, to misappropriation, privacy, and right of publicity. It balances these with protections for speech afforded by the First Amendment and other doctrines of free speech. The result is the first comprehensive attempt to prevent, respond to, and correct deliberate attempts to subvert training sets of AI models for malicious purposes

    Tenā€Year Secular Trends in Youth Violence: Results From the Philadelphia Youth Risk Behavior Survey 2003ā€2013

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    BACKGROUNDYouth violence reduction is a public health priority, yet few studies have examined secular trends in violence among urban youth, who may be particularly vulnerable to numerous forms of violence. This study examines 10ā€year secular trends in the prevalence of violenceā€related behaviors among Philadelphia high school students.METHODSRepeated crossā€sectional data were analyzed from 5 waves of the Philadelphia Youth Risk Behavior Survey (YRBS) from 2003 to 2013. Sexā€specific multivariate regression models were used to examine secular trends in multiple types of violence, accounting for age, race/ethnicity, and sampling strategy.RESULTSIn 2013, the most prevalent violent behavior was physical fighting among boys (38.4%) and girls (32.7%). Among girls, the prevalence of sexual assault and suicide attempts declined between 2003 and 2013 (Ī² = āˆ’0.13, p = .04 and Ī² = āˆ’0.14, p = .007, respectively). Among boys, significant declines in carrying a weapon (Ī² = āˆ’0.31, p < .001), carrying a gun (Ī² = āˆ’0.16, p = .01), and physical fighting (Ī² = āˆ’0.35, p = .001) were observed.CONCLUSIONSWhereas the prevalence of some forms of violence stabilized or declined among Philadelphia youth during 2003ā€2013 time span, involvement in violenceā€related behaviors remains common among this population. Continued surveillance and evidenceā€based violence reduction strategies are needed to address violence among urban youth.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/136403/1/josh12491_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/136403/2/josh12491.pd

    Crystal Structure and Computational Analysis of a Two-Dimensional Coordination Polymer, BiI3(DppeO2)3/2

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    Catena-poly[fac-triiodobismuth(III)-tris-(Āµ-ethane-1,2-diylbis(diphenylphosphane oxide-Īŗ2O,Oā€²))], a 2-D sheet network of BiI3 was synthesized from BiI3 and ethane-1,2-diylbis(diphenylphosphane oxide) (DppeO2) in tetrahydrofuran. The crystal structure revealed a trigonal structure with three-fold symmetry at Bi. Bismuth centers show fac-BiI3O3 coordination, with Biā€“Iā€‰=ā€‰2.9416(2) ƅ and Biā€“Oā€‰=ā€‰2.4583(17) ƅ. The Iā€“Biā€“I and Oā€“Biā€“O angles (95.520(7)Ā° and 79.04(6)Ā°, respectively) indicate trigonal distortion in the Bi octahedron. Bridging DppeO2 ligands centered on inversion centers give rise to a 2-D sheet polymer. The 8.3 ƅ thick sheets consist of three layers in a sandwich structure. The outer layers are composed of phenyl rings and BiI3 groups with the iodide atoms pointing outward. The central layer consists of the O=PCH2CH2P=O bridging groups. Computational results suggest that semi-conducting behavior arises from Bi(III) centers. A halide to DppeO2 Ļ€* transition is suggested by theoretical results

    A Terbium Chlorobismuthate(III) Double Salt: Synthesis, Structure, and Photophysical Properties

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    We report on the structure and luminescence of a double salt trivalent rare earth ion acceptor, Tb3+, with octahedral [BiCl6]3ā€“ donor clusters. The novel TbBiCl6Ā·14H2O (1) was prepared from aqueous BiOCl and TbCl3Ā·6H2O. The crystal structure of compound 1 exhibits isolated [BiCl6]3ā€“ and [Tb(OH2)8]3+ clusters. Luminescence data show energy transfer from octahedral chlorobismuthate(III) clusters to rare earth metal ions. Density Functional Theory (DFT) calculations show distinctly different emission pathways at high and low excitation energies

    What is operative? Conceptualizing neuralgia: Neuroma, compression neuropathy, painful hyperalgesia, and phantom nerve pain

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    Neuralgia, or nerve pain, is a common presenting complaint for the hand surgeon. When the nerve at play is easily localized, and the cause of the pain is clear (eg, carpal tunnel syndrome), the patient may be easily treated with excellent results. However, in more complex cases, the underlying pathophysiology and cause of neuralgia can be more difficult to interpret; if incorrectly managed, this leads to frustration for both the patient and surgeon. Here we offer a way to conceptualize neuralgia into 4 categories-compression neuropathy, neuroma, painful hyperalgesia, and phantom nerve pain-and offer an illustrative clinical vignette and strategies for optimal management of each. Further, we delineate the reasons why compression neuropathy and neuroma are amenable to surgery, while painful hyperalgesia and phantom nerve pain are not

    Outcomes Following Surgical Fixation of Upper Extremity Fractures in Patients with Chronic Kidney Disease

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    Purpose: Moderate to severe (stage III-IV) chronic kidney disease (CKD) and end stage renal disease (ESRD) have been shown to be independent risk factors for sustaining a fragility fracture. High rates of complications and mortality are associated with fracture fixation in patients with CKD, but existing literature is limited. It is unknown how CKD stage III-IV or ESRD affects outcomes in upper-extremity fractures. We hypothesize that patients with CKD stage III-IV or ESRD will have high complication rates after surgical fixation of upper extremity fractures. Methods: We identified all patients between 2008 and 2018 who underwent operative fixation of an upper extremity fracture proximal to the distal radius with a diagnosis of CKD stage III-IV or ESRD at the time of injury. Those with an acute kidney injury at the time of injury or a history of a kidney transplant were excluded. Demographics, medical complications, and surgical complications were collected retrospectively. Data on readmissions within 90 days and mortality within 1 year were also collected. Results: Thirty-five patients were identified. Three patients had ESRD. Fractures included two clavicle, twelve proximal humerus, one humeral shaft, ten distal humerus, five olecranon, two ulnar shaft, one radial shaft, and two both-bone forearm fractures. In total, 91.4% of fractures were closed injuries. Surgical complications occurred in 40% of patients. The reoperation rate was 11.4%, and all cases of reoperation involved hardware removal. The all-cause 90-day readmission rate was 34.3%. The 1-year mortality rate was 8.6%. Conclusions: Surgical complications occurred in 40% of patients with CKD stage III-IV or ESRD who underwent fixation for an upper extremity fracture. It is important to counsel these patients regarding their high risk for complications. Further research is needed to investigate and identify how to mitigate risk. Type of study/level of evidence: Prognostic IV

    Late-Binding Scholarship in the Age of AI

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    Scholarly processes play a pivotal role in discovering, challenging, improving, advancing, synthesizing, codifying, and disseminating knowledge. Since the 17th Century, both the quality and quantity of knowledge that scholarship has produced has increased tremendously, granting academic research a pivotal role in ensuring material and social progress. Artificial Intelligence (AI) is poised to enable a new leap in the creation of scholarly content. New forms of engagement with AI systems, such as collaborations with large language models like GPT-3, offer affordances that will change the nature of both the scholarly process and the artifacts it produces

    Outcomes Following Surgical Fixation of Distal Radius Fractures in Patients With Chronic Kidney Disease

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    Purpose: Moderate-to-severe chronic kidney disease (CKD, stages III-IV) and end-stage renal disease (ESRD or CKD stage V) are known to be independent risk factors for fragility fracture. Altered bone and mineral metabolism contributes to greater complications and mortality rates in the setting of fractures, although most existing literature is limited to hip fractures. We hypothesized that patients with moderate-to-severe CKD or ESRD would have greater complication rates after surgical treatment of distal radius fractures compared with those without CKD. Methods: We retrospectively identified all patients at a level 1 trauma center between 2008 and 2018 who had a diagnosis of stage III-IV CKD or ESRD at the time of operative fixation of a distal radius fracture. We recorded demographic data, comorbidities, and surgical complications. Data for readmissions within 90 days and 1-year mortality were collected. A 2:1 sex-matched control group without CKD who underwent distal radius fixation was selected for comparison, with age-adjusted analysis. Results: A total of 32 patients with CKD (78.1% CKD stage III/IV, 21.9% ESRD) and 62 without CKD were identified. The mean age was 67 Ā± 12 years in the CKD group and 55 Ā± 15 years in the control group. The CKD group had a higher Charlson Comorbidity Index (5.7 vs 2.0). Surgical complication rate in the CKD group was 12.5% (12.0% CKD III/IV; 14.3% ESRD). Neither early nor late surgical complication rates were statistically different from those in patients without CKD. Reoperation rate as well as 30- and 90-day readmission rates were similar between groups. Overall, 1-year mortality was greater in the CKD group (9.4% vs 0%). Conclusions: Surgical complications and readmission rates are similar in patients with and without CKD after distal radius fracture fixation. However, 1-year mortality rate is significantly higher after distal radius fixation in patients with moderate-to-severe CKD or ESRD. Type of study/level of evidence: Prognostic IIIa

    The Stony Brook / SMARTS Atlas of mostly Southern Novae

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    We introduce the Stony Brook / SMARTS Atlas of (mostly) Southern Novae. This atlas contains both spectra and photometry obtained since 2003. The data archived in this atlas will facilitate systematic studies of the nova phenomenon and correlative studies with other comprehensive data sets. It will also enable detailed investigations of individual objects. In making the data public we hope to engender more interest on the part of the community in the physics of novae. The atlas is on-line at \url{http://www.astro.sunysb.edu/fwalter/SMARTS/NovaAtlas/} .Comment: 11 figures; 5 table
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