Melting of ferromagnetic order on a trellis ladder

A Sixteenth-order Polylogarithm Ladder

A seventeenth-order polylogarithm ladder

Cohen, Lewin and Zagier found four ladders that entail the polylogarithms Lin(α −k 1 ) := ∑ r>0 α −kr 1 /r n at order n = 16, with indices k ≤ 360, and α1 being the smallest known Salem number, i.e. the larger real root of Lehmer’s celebrated polynomial α + α − α − α − α − α − α + α + 1, with the smallest known non-trivial Mahler measure. By adjoining the index k = 630, we generate a fifth ladd...

Acetabular cages: a ladder across a melting pond.

implanting anti-protrusio devices was based on an attempt to provide increased contact area between the implant and remaining pelvic bone to dissipate forces within the cement and decrease the likelihood of implant migration. Early devices relied on cement as the sole source of fixation and these implants were associated with a high failure rate at short-term follow-up. Although the use of thes...

the impact of training on second language writing assessment: a case of raters’ biasedness

چکیده هدف اول این تحقیق بررسی تأثیر آموزش مصحح بر آموزش گیرندگان براساس پایایی نمره های آنها در پنج بخش شامل محتوا ، سازمان ، لغت ، زبان و مکانیک بود. هدف دوم این بود که بدانیم آیا تفاوتهای بین آموزشی گیرندگان زن و مرد در پایایی نمرات آنها وجود دارد. برای بررسی این موارد ، ما 90 دانشجو در سطح میانه (متوسط) که از طریق تست تعیین سطح شده بودند انتخاب شدند. بعد از آنها خواستیم که درباره دو موضوع ا...

Ferromagnetic Ga1ÀxMnxAs produced by ion implantation and pulsed-laser melting

We demonstrate the formation of ferromagnetic Ga12xMnxAs films by Mn ion implantation into GaAs followed by pulsed-laser melting. Irradiation with a single excimer laser pulse results in the epitaxial regrowth of the implanted layer with Mn substitutional fraction up to 80% and effective Curie temperature up to 29 K for samples with a maximum Mn concentration of x'0.03. A remanent magnetization...