Three-Dimensional Magnetic Page Memory

The increasing need to store large amounts of information with an ultra-dense, reliable, low power and low cost memory device is driving aggressive efforts to improve upon current perpendicular magnetic recording technology. However, the difficulties in fabricating small grain recording media while maintaining thermal stability and a high signal-to-noise ratio motivate development of alternative methods, such as the patterning of magnetic nano-islands and utilizing energy-assist for future applications. In addition, both from sensor and memory perspective three-dimensional spintronic devices are highly desirable to overcome the restrictions on the functionality in the planar structures. Here we demonstrate a three-dimensional magnetic-memory (magnetic page memory) based on thermally assisted and stray-field induced transfer of domains in a vertical stack of magnetic nanowires with perpendicular anisotropy. Using spin-torque induced domain shifting in such a device with periodic pinning sites provides additional degrees of freedom by allowing lateral information flow to realize truly three-dimensional integration

What Scanners do at L7? Exploring Horizontal Honeypots for Security Monitoring

Honeypots are a common means to collect data useful for threat intelligence. Most efforts in this area rely on vertical systems and target a specific scenario or service to analyse data collected in such deployment. We here extend the analysis of the visibility of honeypots, by revisiting the problem from a horizontal perspective. We deploy a flexible honeypot system hosting multiple services, relying on the T-Pot project. We collect data for 5 months, recording millions of application requests from tens of thousands of sources. We compare if and how the attackers interact with multiple services. We observe attackers that always focus on one or few services, and others that target tens of services simultaneously. We dig further into the dataset, providing an initial horizontal analysis of brute-force attacks against multiple services. We show, for example, clear groups of attackers that rely on different password lists on different services. All in all, this work is our initial effort to build a horizontal system that can provide insights on attacks

Three Endocrine Neoplasms: An Unusual Combination of Pheochromocytoma, Pituitary Adenoma, and Papillary Thyroid Carcinoma

Background: Three endocrine neoplasms?bilateral pheochromocytomas, somatotrophic pituitary adenoma inducing acromegaly, and papillary carcinoma of the thyroid?occurred concurrently in a patient. A genetic mutation was hypothesized. Possible previously described genetic mutations were explored. Methods: Clinical assessments, laboratory data, images of tumors, histopathology, and immunohistochemistry of excised tissues documented the three neoplasms. Clinical assessment of the patient, family history, and a review of the literature sought a familial basis for the disorders. Results: The methods confirmed the presence of three endocrine neoplasms. Each neoplasm was surgically excised and histologically verified. Surgical and 131I treatments reduced the papillary carcinoma, but eventually this tumor progressed to a lethal degree. History, including that of nine siblings, uncovered no familial neoplasms. No similar case was found in the literature, but possible associations with germline mutations were considered. Conclusions: The concurrent development of pheochromocytomas, pituitary somatotrophic adenoma, and papillary thyroid carcinoma appears to be unique. Nevertheless, such tumors, particularly bilateral pheochromocytomas, strongly suggest a de novo germline mutation in a gene not previously associated with multiple endocrine neoplasia syndromes.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98488/1/thy%2E2011%2E0345.pd

Implications of the TCGA Genomic Characterization of Papillary Thyroid Carcinoma for Thyroid Pathology: Does Follicular Variant Papillary Thyroid Carcinoma Exist?

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140262/1/thy.2014.0540.pd

The Destinies of the Work of Art: Aesthetic Theories in Hölderlin and Adorno

For Hölderlin and Adorno, the power to transcend one’s being-in-nature in order to capture nature in an image, is both the most dangerous and the most beautiful aspect of the human being. Hölderlin develops a model of reconciliation of man with nature where the transcendental power, as soon as it achieves a vision of nature, violates true nature by virtue of its finitude and so must pay for this “hybris” through self-sacrifice. Adorno appropriates this model for the work of art. Nature can never be captured directly, but only indirectly, by the attempt and failure to capture it directly. This is the role of the work of art. A good work of art is one which criticizes its own appearing quality. It recognizes its own hybris and “explodes” its appearance. In the afterglow of this explosion, true nature “expresses itself.” Hölderlin limits this sacrificial model to Greek humanity. Modern humanity does not follow this negative dialectical model of reconciliation with nature. It conditions nature through its movement away from its source. The Modern poem also becomes a type of movement, a pathway involving an alternation of representations or tones. Each poetic “path” creates truth in the process of its own movement. There is no longer any true nature to reconcile with, but nature is transformed by the particular path chosen and followed. In this way, each work of art creates its own destiny. Adorno misses this aspect of Hölderlin. Whereas Adorno needed the sacrificial dynamic to provide a place for philosophical reflection at a safe distance from the work of art, Hölderlin’s Modern dynamic places any philosophical reflection within the material destiny of any individual work. It is Walter Benjamin who recognizes this Modern dynamic and his disagreements with Adorno are reflected in the difference between their interpretations of Hölderlin. What I hope to show most strikingly in this dissertation is the manner in which the work of art is a material thing, a direction, a process and a destiny, and how any engagement with the work operates along its destiny