Jonathan Ng

The death of Laken Riley, who Trump called “an American daughter,” is at the center of right-wing immigration rhetoric.

Even the Pentagon tacitly admits that US-Sahelian partnerships aren’t reducing terrorist violence at all after 20 years.

The lower hybrid drift wave (LHDW) has been a candidate for anomalous resistivity and electron heating inside the electron diffusion region of magnetic reconnection. In a laboratory reconnection layer with a finite guide field, quasielectrostatic LHDW (ES-LHDW) propagating along the direction nearly perpendicular to the local magnetic field is excited in the electron diffusion region. ES-LHDW generates large density fluctuations ( δn e, about 25% of the mean density) that are correlated with fluctuations in the out-of-plane electric field ( δE Y, about twice larger than the mean reconnection electric field). With a small phase difference ( ∼30°) between two fluctuating quantities, the anomalous resistivity associated with the observed ES-LHDW is twice larger than the classical resistivity and accounts for 20% of the mean reconnection electric field. After we verify the linear relationship between δn eand δE Y, anomalous electron heating by LHDW is estimated by a quasilinear analysis. The estimated electron heating is about 2.6±0.3MW/m3, which exceeds the classical Ohmic heating of about 2.0±0.2MW/m3. This LHDW-driven heating is consistent with the observed trend of higher electron temperatures when the wave amplitude is larger. Presented results provide the first direct estimate of anomalous resistivity and electron heating power by LHDW, which demonstrates the importance of wave-particle interactions in magnetic reconnection.

The definitive guide to prevent pitfalls in delivering design outcomes. Picture this: a modern, contemporary meeting room.

Having survived the US blockade for 64 years, Cuba is enduring its worst economic crisis since the collapse of the USSR.

The Labour Party has vowed to scrap the legislation if it wins control of the government later this year.

In just the last week, the US announced withdrawals of military personnel from both Niger and Chad.

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The Zeekr X (left) and Zeekr 009 are two very different stable mates from the Chinese brand owned by Geely Automotive Holdings. ST PHOTO: JONATHAN NG

Above photo: People wave flags of the Puerto Rican Independence Party as they react to the election results, in San Juan, Puerto Rico, on November 5, 2024. Jaydee Lee Serrano / AFP via Getty Images.