Ithaca College

Power amplifiers (PAs) using HEMTs with aluminum nitride (AlN) buffer layers promise superior thermal performance over the current generation of GaN-buffer HEMT PAs. However, the continuous-wave (CW) output power densities from AlN-buffer HEMTs have been limited to <6 W/mm so far. This work presents the advancement in the large-signal RF performance of AlN-buffer HEMTs with a 2× improvement in CW output powers. AlN-buffer HEMTs with 180 nm gate length and 2 <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">μ</i>m source-drain distance fabricated on 100 mm SiC substrates, show oncurrents of 1.1 A/mm and breakdown voltage ∼100 V. On-wafer load-pull power sweep measurements conducted at 10 GHz demonstrated a maximum CW power output (P<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">out</sub>) of 5.5 W/mm at 28 V and 11.7 W/mm at 50 V bias. At 50 V, the peak PAE of 49 % had an associated Pout 11.32 W/mm and linear gain of 9.35 dB. This significant power enhancement in AlN-buffer HEMT performance, coupled with its intrinsic thermal advantage over GaN-buffer HEMTs, paves the way for adoption in critical RF applications.

Abstract The Ithaca High School Math Seminar, a full year mathematics course that takes place at a high school during regular school hours, is taught by three Cornell University graduate students, and facilitated by a high school mathematics teacher and a Cornell University faculty member. The goals of Math Seminar are to broaden advanced high school students’ perspectives of mathematics rather than to accelerate through the mathematics curriculum, and to provide opportunities for graduate students to communicate mathematical ideas to a non‑specialist audience. Research suggests that high school students benefit from near‑peer mentoring from graduate students, and that teaching Math Seminar influences graduate student instructors’ commitment to participate in mathematics outreach.

A nation's economic vitality is not forged in the boardrooms of its largest corporations alone, but in the aspirations and endeavors of its people across every island and valley.It is also too naive to assume that policymakers know everything.Indonesia's story of robust national growth is a testament to its potential, yet this narrative of success often masks the persistent inequalities that fragment our archipelago.While macroeconomic indicators may paint a picture of stability, a closer look reveals a concentration of economic power and opportunity, predominantly within Java, leaving peripheral regions, especially in the east, trailing in its wake.This reality presents a profound challenge: to ensure that the currents of prosperity reach every shore.It is a challenge that cannot be met with monolithic policies crafted from a national vantage point.The diverse tapestry of Indonesia's regional economies, each with its unique structural and institutional fabric, demands a more nuanced and responsive approach.A one-size-fits-all solution is not merely ineffective; it is an injustice to the distinct potential of each region.The path forward requires us to listen-to truly hear the "monetary whispers across space."We must build bridges of understanding between central policymakers and the realities on the ground.This means establishing robust systems for regional data collection and fostering genuine partnerships with local go vernments and financial institutions.These are not just technical exercises; they are the foundations of a more sensitive and effective policy framework.This book, Monetary Whispers across Space, courageously steps into this complex arena.It moves beyond aggregate numbers to explore the intricate dance between monetary policy and regional disparity.With a sharp focus on the pivotal role of local credit, it illuminates how the flow of capital can both entrench and alleviate inequality.T hrough a blend of rigorous empirical analysis and the vital perspectives of regional financial actors, this work provides the insights needed to craft policies that are not only context-sensitive but truly transformative.Let this work be a call for more and better actions.It is a reminder to policymakers that the effectiveness of their decisions is intrinsically linked to the diverse economic landscapes they seek to shape or reshape.It underscores the critical need for collaboration-unified efforts among central and local authorities, v vi Foreword financial institutions, and the communities themselves.Our goal must be not only to stimulate growth but also to cultivate a future where that growth is shared, fostering equitable and inclusive prosperity across the entirety of our beloved Indonesia.By embracing the lessons within these pages, we can design policies that are more precise, more impactful, and more just, ensuring that every region has the opportunity to flourish. Jakarta, IndonesiaPerry Wa rjiyo

Both philosophers and art historians commonly take Brancusi to have been a Platonic sculptor. This is due to the fact that he was sculpting “essences” or “Forms” of things rather than their appearances. My paper argues against the Platonic interpretation of Brancusi. First, I show that this is not a historically accurate way of understanding his sculptural project. Brancusi is not likely to have studied Plato or sculpted in dialogue with his texts. From the historical perspective, rather than connecting Brancusi’s sculpture to Plato, it is more accurate to link it conceptually to Blavatsky’s Theosophy and especially to Isis Unveiled. Second, I argue that Plato’s “Forms”, properly understood, are not the types of things that could be sculpted in the first place. In Plato’s metaphysics, Forms constitute a small subset of “universals”. As non-spatiotemporal, transcendent entities graspable by reason rather than senses, they cannot be rendered in sculpture. Sculpture can endeavor to capture essences (rather than Forms) of things, but there is nothing especially Platonic about such sculptural aims. Thus, Brancusi’s sculptural essences of birds, fish, seals, and turtles are not Platonic in any technical sense of the term. Jointly, these two arguments give us a good reason not to interpret Brancusi’s work in light of Plato’s theory of Forms, but, at best, in light of what he has learned about “essences” from his study of Theosophy.

Accurate genome annotation remains a bottleneck in plants, where polyploidy and repeat-rich sequence confound homology- and RNA-based pipelines. We introduce GeneCAD, a sequence-only method that predicts complete plant gene models directly from DNA. GeneCAD couples representations from a plant DNA foundation model, PlantCAD2, with a lightweight ModernBERT encoder and a chromosome-wide conditional random field that enforces splice-phase and feature order, and applies a protein language-model screen to suppress repeat-driven open reading frames. To limit label noise, we rank and filter public annotations using a sequence-based masked-motif score and fine-tune on five phylogenetically diverse, high-quality references. Across five held out angiosperms, including the allotetraploid Nicotiana tabacum, GeneCAD improves transcript-level F1 by 8–10% on average over Helixer and BRAKER3, increases exact match transcripts, and sharpens boundaries at start/stop codons and splice junctions. By removing dependence on species-matched RNA-seq or proteomics while retaining cross-species accuracy, GeneCAD provides an accurate, scalable route to biologically coherent plant gene models from DNA alone.

We present a genome assembly from an individualOnchidella celtica (Celtic sea slug; Mollusca; Gastropoda; Systellommatophora; Onchidiidae). The genome sequence has a total length of 1 141.02 megabases. Most of the assembly (99.92%) is scaffolded into 18 chromosomal pseudomolecules. Gene annotation of this assembly on Ensembl identified 12 582 protein-coding genes. The mitochondrial genome has also been assembled, with a length of 13.99 kilobases. This assembly was generated as part of the Darwin Tree of Life project, which produces reference genomes for eukaryotic species found in Britain and Ireland.

To analyze temporal trends and geographic variations in infant mortality rate associated with congenital diaphragmatic hernia (CDH-IMR) in the United States. From 2007 to 2021, we used CDC-WONDER linked birth/death data to identify CDH-related infant deaths (ICD-10 code: Q79 as the underlying cause of death), analyze annual CDH-IMR trends, and explore associations with sex, gender, gestational age (GA), and U.S. state of birth. Descriptive statistics were derived, and bivariate analyses were conducted to discern differences in CDH-IMR by gender, race, and GA. CDH-IMR was expressed per 100,000 live births with Poisson-modeled 95% confidence intervals, and trends were assessed through joinpoint regression to extrapolate annual percent change (APC). Between 2007 and 2021, 59,117,761 live births and 3391 CDH-related infant deaths were recorded. CDH infant deaths accounted for 0.96% of all infant deaths and occurred in 0.006% of live births. The mean CDH-IMR was 5.7 (95% CI: 5.5-5.9) per 100,000 live births, with a significant downward trend (APC: -1.3%, [95% CI: -2.0, -0.5, p < 0.01]). Asian infants had a lower risk of mortality (RR 0.66 [95% CI: 0.55, 0.79]) compared to White infants, and higher GA at birth correlated with better survival. Regional analysis revealed a median CDH-IMR (IQR) of 5.9 (4.7, 7.2), with a three-fold variation across U.S. states. In this national population-based U.S. study, we observed a decreasing trend in CDH-IMR. However, significant variation in CDH mortality persists by region, gender, and race. Despite evidence of current CDH care is associated with a decreasing trend in mortality, there remain many opportunities for equitable improvement in outcomes across race, gender and by geographic region.