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Life Sciences

Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.

447,757 articles | 2542 topics

Health and Medicine

Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.

431,843 articles | 751 topics

Social Sciences

Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.

260,756 articles | 745 topics

Physical Sciences

Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.

257,913 articles | 1552 topics

Applied Sciences and Engineering

Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.

225,386 articles | 998 topics

Scientific Community

Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.

193,043 articles | 157 topics

Space Sciences

Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.

29,662 articles | 175 topics

Research Methods

Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.

21,889 articles | 139 topics

Mathematics

Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.

3,023 articles | 113 topics

Men defy stereotypes in defining masculinity

A large international study of over 27,000 men found that being seen as honorable and respected is more important to their idea of masculinity than physical attractiveness or sexual performance. Men value good health, family life, and relationships with their partner, regardless of age or nationality.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Erectile dysfunction may signal a broken heart

Two studies found that erectile dysfunction is a powerful early warning sign for serious heart disease, including heart attack and death in men with type 2 diabetes. Cholesterol-lowering medications and certain compounds like Viagra may reduce the risk of heart problems.

High levels of the molecule adenosine linked to priapism

Research by Yang Xia and colleagues found that high levels of adenosine contribute to priapism in males with sickle cell disease. Adenosine signaling through the A2B receptor may be a key factor in the development of priapism, suggesting new potential treatments.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Mayo Clinic Proceedings: Men with chronic heart failure can have active sex lives

A literature review published in Mayo Clinic Proceedings finds that many patients with chronic heart failure can engage in sexual activity with proper screening and treatment. The authors analyzed studies on the impact of sexual activity on heart rate and blood pressure, showing moderate oxygen consumption levels comparable to normal d...

Pedophilia patients are found to have deficits in brain activation

A new study published in Biological Psychiatry found that pedophilia patients exhibit reduced activation of the hypothalamus and frontal cortex when viewing sexually arousing pictures, indicating altered sexual interest. This deficit may predispose individuals vulnerable to pedophilia to seek alternative stimulation.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Prevent smoking to reduce risk of erectile dysfunction

A Tulane University study published in the American Journal of Epidemiology found a significant association between cigarette smoking and erectile dysfunction. The research suggests that quitting smoking may help reduce the risk of erectile dysfunction, with estimated 22.7% of cases potentially attributable to cigarette smoking.

Double identities lie behind chromosome disorders

A new study reveals an alternative distribution mechanism in female sex cells that cause chromosome disorders, leading to infertility and irregular numbers of chromosomes. This fundamental mechanism may help explain the common occurrence of such disorders in females.

Erectile dysfunction and lower urinary tract symptoms

Studies suggest that phosphodiesterase inhibitors, commonly used for erectile dysfunction, can also alleviate lower urinary tract symptoms associated with benign prostatic hyperplasia. Researchers found improved scores on the International Index of Erectile Function and International Prostate Symptom Score, indicating potential benefit...

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Erectile dysfunction -- the canary in the mineshaft?

Research reveals a connection between erectile dysfunction and various serious health conditions, including heart disease and metabolic syndrome. Chronic treatment with sildenafil has been shown to improve endothelial function and oxidative stress, suggesting potential benefits for cardiovascular indications.

U of M professor awarded the Gold Medal Award 2007

Eli Coleman, a University of Minnesota professor and director of the Program in Human Sexuality, received the Gold Medal Award 2007 from the World Association for Sexual Health. He has published extensively on topics like sexual orientation and compulsive sexual behavior.

UCLA study finds prostate cancer treatments impact on quality of life

A UCLA study found that three common prostate cancer treatments affect men's lives in different ways, with varying degrees of erectile dysfunction and urinary symptoms. The study tracked 580 men for five years and used a web-based data collection system to gather accurate information.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

18 million men in the United States affected by erectile dysfunction

A study by Johns Hopkins Bloomberg School of Public Health reveals that 18% of American men experience erectile dysfunction, with age being a major risk factor. Lifestyle changes such as increased physical activity and disease prevention measures may also improve male sexual function.

Thermal imaging shatters arousal gender gap myth

A McGill University study found no difference in time for men and women to reach peak arousal, contrary to previous assumptions. The use of thermal imaging technology allows for minimally invasive measurement of sexual arousal rates.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Erection pill associated with normalization of relationships

A new study published in The Journal of Sexual Medicine found that sildenafil treatment normalizes relationships, confidence, and self-esteem in men with erectile dysfunction. Men with ED who took sildenafil for 10 weeks showed significant improvements in sexual relationship satisfaction, confidence, and self-esteem compared to those w...

Erectile dysfunction may warn of heart disease

A study at the University of Chicago Medical Center found that erectile dysfunction is a stronger predictor of significant coronary heart disease than traditional risk factors. Men with ED had reduced exercise endurance, decreased ejection fraction, and higher evidence for coronary artery blockages.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Men with erectile dysfunction have increased risk for cardiovascular events

A study of over 9,400 men found a strong association between erectile dysfunction and subsequent cardiovascular disease, including angina, myocardial infarction, stroke, and transient ischemic attack. Men with erectile dysfunction were found to have a 25-45% increased risk of cardiovascular events compared to those without the condition.

Couples share sexual problems and solutions

A study published in The Journal of Sexual Medicine found that treatment of men with erectile dysfunction (ED) significantly improved women's sexual function scores in all domains. The researchers discovered a link between the physiological changes of one partner affecting the other, highlighting the importance of addressing ED to impr...

Erectile dysfunction may signal early atherosclerosis

Research reveals that erectile dysfunction is associated with higher levels of C-reactive protein and abnormal blood vessel responses. Men with ED are at increased risk for coronary artery disease, which can lead to heart attacks and strokes.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Hormone patch may provide some increase in sexual desire in menopausal women

A 24-week clinical trial found that testosterone patches significantly improved sexual desire and frequency of satisfying sexual activity in surgically menopausal women with hypoactive sexual desire disorder. The middle dosage group showed a 67% increase in questionnaire scores for sexual desire compared to the placebo group.

Vascular disease most common cause of male erectile dysfunction

A new study published in The Journal of Sexual Medicine found that over half of men with ED and cardiac disease can safely discontinue oral nitrates to use PDE-5 inhibitors, restoring sexual function. The study showed no adverse cardiac events in the group, providing new evidence-based care for men with ED and cardiac disease.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

It's not all in your head

A large study defines premature ejaculation by measuring average times to ejaculation with stopwatches and patient-reported subjective factors. The research suggests that IELT may not be sufficient for diagnosis and that subjective factors like lack of control are valid indicators.

Problems in the bedroom can indicate heart problems

Research suggests that erectile dysfunction (ED) is a significant public health concern associated with cardiovascular medicine. Early recognition of ED in high-risk populations can lead to early diagnosis of cardiovascular risk factors and subclinical vascular disease.

Testosterone deficiency found in one-third of diabetic men

A recent study revealed that nearly one-third of diabetic men suffer from hypogonadism, a condition caused by improper functioning of the pituitary gland or hypothalamus. The high prevalence of low testosterone levels in diabetic patients is concerning and associated with various health issues such as loss of muscle tone, increased abd...

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Annals of Internal Medicine, tip sheet, August 5, 2003

Erectile dysfunction (ED) is common among older men, affecting one-third of men aged 53-90, with increasing age being a significant risk factor. Modifiable health behaviors such as physical activity and leanness are associated with maintaining good erectile function.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Research links erectile dysfunction and cardiovascular disease

A study of over 4,000 men found that erectile dysfunction is strongly associated with cardiovascular disease. Men without diagnosed cardiovascular disease who had erectile dysfunction were more likely to have risk factors like diabetes, smoking, high blood pressure, and low HDL cholesterol.

Cigarettes send male sex life up in smoke

A study of 4,764 Chinese men found that cigarette smoking is associated with a 60% higher risk of erectile dysfunction. The risk increased with the number of cigarettes smoked daily, highlighting the negative impact of smoking on male sex life.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Smoking increases likelihood of impotency

A study by Northwestern University researchers found that men who smoke are more likely to experience erectile dysfunction due to the negative effects of smoking on blood vessels. The prevalence of erectile dysfunction in former smokers was similar to that of never-smokers, highlighting the long-term risks of tobacco use.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

New study offers hope for treatment of hypoactive sexual desire disorder

A new study suggests that bupropion hydrochloride sustained-release tablets may be an effective treatment for HSDD in females, with significant increases in episodes of sexual arousal and interest. Researchers reported encouraging results, with nearly 40% of participants showing improvement in their sexual desire.