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Variation exists in the expression of romantic love, but to date, no studies have specifically investigated this phenomenon. This study employed a TwoStep cluster analysis to group 809 partnered young adults experiencing romantic love from the Romantic Love Survey 2022 according to intensity of romantic love, obsessive thinking, commitment, and frequency of sex per week. The results revealed four clusters: (i) mild romantic lovers (20.02%) characterized by the lowest intensity, lowest obsessive thinking, lowest commitment, and lowest frequency of sex; (ii) moderate romantic lovers (40.91%), characterized by relatively low intensity, relatively low obsessive thinking, relatively high commitment, and relatively moderate frequency of sex; (iii) libidinous romantic lovers (9.64%), characterized by relatively high intensity, relatively high obsessive thinking, relatively high commitment, and exceptionally high frequency of sex; and (iv) intense romantic lovers (29.42%), characterized by the highest intensity, highest obsessive thinking, highest commitment, and relatively high frequency of sex. Each cluster differs on a range of personal and relationship characteristics. The findings can generate theory and hypotheses about romantic love and provide impetus for future research.

Dark events are organised events linked to death, disaster and suffering, and this conceptual study provides a new framework that can be used in their analysis. The framework has been developed through a theoretical synthesis of concepts from the domain theory of thanatology, and the method theories of dark tourism, dark leisure and collective memory. Six concepts of value for research into dark events are identified: commercialisation; approaches; public sphere; deviant behaviour; experiences; presence of death. The conceptual framework establishes a coherent conceptual footing for dark event research, and highlights links to established theories and methods that can be of value to future researchers in this novel area. Finally, we present an agenda for future research into dark events.

Over the past few years, experts have been sounding the alarm over how much time Americans spend alone.

Statistics show that we’re choosing to be solitary for more of our waking hours than ever before, tucked away at home rather than mingling in public. Increasing numbers of us are dining alone and traveling solo, and rates of living alone have nearly doubled in the past 50 years.

These trends coincided with the surgeon general’s 2023 declaration of a loneliness epidemic, leading to recent claims that the U.S. is living in an “anti-social century.”

Amazon has upgraded its AI video model, Nova Reel, with the ability to generate videos up to two minutes in length.

Nova Reel, announced in December 2024, was Amazon’s first foray into the generative video space. It competes with models from OpenAI, Google, and others in what’s fast becoming a crowded market.

The latest Nova Reel, Nova Reel 1.1, can generate “multi-shot” videos with “consistent style” across shots, explained AWS developer advocate Elizabeth Fuentes in a blog post. Users can provide a prompt up to 4,000 characters long to generate up to a two-minute video composed of six-second shots.

COLORADO SPRINGS — The U.S. Space Force is transferring the launch of a GPS satellite from United Launch Alliance (ULA) to SpaceX in an effort to reduce a backlog of satellites waiting in storage.

The GPS III SV-08 satellite, the eighth in the GPS III constellation, is now scheduled to launch no earlier than late May aboard a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station, Florida, the Space Systems Command announced April 7.

This marks the second time in recent months that the Space Force has reassigned a GPS launch from ULA to SpaceX. Last year, the GPS III SV-07 satellite was moved from a planned ULA Vulcan rocket launch in late 2025 to a SpaceX Falcon 9, which successfully launched on December 16 in a mission called Rapid Response Trailblazer.

We live longer and longer, and as we age, a lot of us develop a series of health issues and chronic diseases, including Chronic Obstructive Pulmonary Disease (COPD), which is found in around 600 million individuals globally. However, only half of them know they have the disease.

COPD patients often experience shortness of breath, persistent cough with mucus, wheezing and frequent respiratory infections, which can make everyday activities difficult.

Now a new study from the University of Copenhagen and Bispebjerg Hospital suggests that a form of vitamin B3 may be the key to improving quality of life for these patients.

“In the study, we show that nicotinamide riboside, also known as vitamin B3, can reduce lung inflammation in COPD patients,” says Associate Professor Morten Scheibye-Knudsen from the Center for Healthy Aging at the Department of Cellular and Molecular Medicine, University of Copenhagen, who has co-authored the new study.


A new study carried out by researchers at the University of Copenhagen and Bispebjerg Hospital shows that a form of vitamin B3 can reduce lung inflammation in COPD patients.

Niels Henrik David Bohr was born in Copenhagen on October 7, 1885, as the son of Christian Bohr, Professor of Physiology at Copenhagen University, and his wife Ellen, née Adler. Niels, together with his younger brother Harald (the future Professor in Mathematics), grew up in an atmosphere most favourable to the development of his genius – his father was an eminent physiologist and was largely responsible for awakening his interest in physics while still at school, his mother came from a family distinguished in the field of education.

After matriculation at the Gammelholm Grammar School in 1903, he entered Copenhagen University where he came under the guidance of Professor C. Christiansen, a profoundly original and highly endowed physicist, and took his Master’s degree in Physics in 1909 and his Doctor’s degree in 1911.

While still a student, the announcement by the Academy of Sciences in Copenhagen of a prize to be awarded for the solution of a certain scientific problem, caused him to take up an experimental and theoretical investigation of the surface tension by means of oscillating fluid jets. This work, which he carried out in his father’s laboratory and for which he received the prize offered (a gold medal), was published in the Transactions of the Royal Society, 1908.