Recreational marijuana laws and teen marijuana use, 1993-2021

JAMA Psychiatry

2024-04-24

(Press-News.org) About The Study: In this repeated cross-sectional study, there was no evidence that recreational marijuana laws were associated with encouraging youth marijuana use, based on both the logistic regression and interaction-weighted models.

Authors: D. Mark Anderson, Ph.D., of Montana State University in Bozeman, is the corresponding author.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(10.1001/jamapsychiatry.2024.0698)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

# # #

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamapsychiatry/fullarticle/10.1001/jamapsychiatry.2024.0698?guestAccessKey=c63d4044-3b42-4b46-89fb-831b5fbea310&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=042424

END

ELSE PRESS RELEASES FROM THIS DATE:

Manchester scientists found novel one-dimensional superconductor

2024-04-24

In a significant development in the field of superconductivity, researchers at The University of Manchester have successfully achieved robust superconductivity in high magnetic fields using a newly created one-dimensional (1D) system. This breakthrough offers a promising pathway to achieving superconductivity in the quantum Hall regime, a longstanding challenge in condensed matter physics. Superconductivity, the ability of certain materials to conduct electricity with zero resistance, holds profound potential for advancements of quantum technologies. However, achieving superconductivity in the quantum Hall regime, characterised by quantised electrical conductance, has proven to be a mighty ...

Tumor cells evade the immune system early on: Newly discovered mechanism could significantly improve cancer immunotherapies

2024-04-24

Tumors actively prevent the formation of immune responses by so-called cytotoxic T cells, which are essential in combating cancer. Researchers at the Technical University of Munich (TUM) and the Ludwig-Maximilians-Universität München (LMU) Hospital have now uncovered for the first time how this exactly happens. The study in the journal Nature provides rationales for new cancer immunotherapies and could make existing treatments more effective. A second paper in Nature confirms the findings. In cancer, tumors often impair the body's immune response. For example, they can prevent immune cells from perceiving cancer cells as a threat or render them inactive. Immunotherapies aim ...

Children with skin diseases suffer stigma, bullying and depression

2024-04-24

· 73% of children with skin disease experience stigma and poor quality of life · ‘Chronic skin conditions can be tremendously life-altering’ · Shame during childhood can affect them throughout their lives, dermatologist says CHICAGO --- The majority of children and teens with chronic skin diseases such as acne, eczema, psoriasis, alopecia areata (hair loss) and vitiligo (pigment loss) feel stigmatized by peers for their condition and are sometimes bullied, reports a new Northwestern Medicine study. As a result, these children have a ...

A novel universal light-based technique to control valley polarization in bulk materials

2024-04-24

Electrons inside solid materials can only take certain values of energy. The allowed energy ranges are called “bands” and the space between them, the forbidden energies, are known as “band-gaps”. Both of them together constitute the “band structure” of the material, which is a unique characteristic of each specific material. When physicists plot the band structure, they usually see that the resulting curves resemble mountains and valleys. In fact, the technical term for a local energy maximum or minimum in the bands is called a “valley”, and the field which studies and exploits how electrons in the material ...

Vast DNA tree of life for flowering plants revealed by global science team

2024-04-24

Images The most up-to-date understanding of the flowering plant tree of life is presented in a new study published today in the journal Nature by an international team of 279 scientists, including three University of Michigan biologists. Using 1.8 billion letters of genetic code from more than 9,500 species covering almost 8,000 known flowering plant genera (ca. 60%), this achievement sheds new light on the evolutionary history of flowering plants and their rise to ecological dominance on Earth. Led by scientists at the Royal Botanic Gardens, Kew, the research team believes ...

Mini-colons revolutionize colorectal cancer research

2024-04-24

As our battle against cancer rages on, the quest for more sophisticated and realistic models to study tumor development has never been more critical. Until now, research has relied on animal models and simplified cell culture methods, which are valuable but cannot fully capture the complex interplay of factors involved in tumor development. Even newer, more advanced models for studying cancer, such as organoids – tiny, lab-grown versions of organs – do not faithfully replicate the cell behaviors and tissue architectures seen in actual tumors. This gap has significantly hindered our understanding ...

Lead-vacancy centers in diamond as building blocks for large-scale quantum networks

2024-04-24

Much like how electric circuits use components to control electronic signals, quantum networks rely on special components and nodes to transfer quantum information between different points, forming the foundation for building quantum systems. In the case of quantum networks, color centers in diamond, which are defects intentionally added to a diamond crystal, are crucial for generating and maintaining stable quantum states over long distances. When stimulated by external light, these color centers in diamond emit photons carrying information about their internal electronic states, especially the spin states. The interaction between the emitted photons and the ...

JMIR Rehabilitation and Assistive Technologies announces theme issue on participatory methods in rehabilitation research

2024-04-24

JMIR Publications invites submissions to a new theme issue titled “Incorporating Participatory Methods in Developing, Implementing, and Evaluating Rehab Interventions and Assistive Technologies” in its premier, open access journal JMIR Rehabilitation and Assistive Technologies (JRAT). JRAT is a peer-reviewed journal indexed in PubMed and PubMed Central, SCOPUS, DOAJ, Web of Science, Sherpa Romeo, and EBSCO and EBSCO Essentials. This theme issue aims to showcase research that actively engages patients, caregivers, and other stakeholders (knowledge users) ...

SwRI’s Dr. Marc Janssens recognized for role in establishing cone calorimeter fire testing

2024-04-24

SAN ANTONIO — April 24, 2024 — Southwest Research Institute’s Dr. Marc Janssens was named a “DiNenno Prize Laureate” for his role in the widespread adoption of the cone calorimeter, a fire-testing tool that accurately measures heat release and material flammability. The National Fire Protection Association® recognized the cone calorimeter with the 2024 Philip J. DiNenno Prize for its lasting impact on fire safety. Dr. Vytenis Babrauskas, a co-recipient of the prize, developed the cone ...

Modeling broader effects of wildfires in Siberia

2024-04-24

As wildfires in Siberia become more common, global climate modeling estimates significant impacts on climate, air quality, health, and economies in East Asia and across the northern hemisphere. The global effects of increasing wildfires in Siberia have been modeled by researchers at Hokkaido University and colleagues at the University of Tokyo and Kyushu University. The results, published in the journal Earth’s Future, suggest significant and widespread effects on air quality, climate, health, and economics under the most extreme wildfire scenarios. The authors performed global numerical simulation experiments to evaluate how the increased intensity of wildfires ...

LAST 30 PRESS RELEASES:

Study unexpectedly finds living in rural, rather than urban environments in first five years of life could be a risk factor for developing type 1 diabetes