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In late fall and early winter > 2,000 Common Coots (Fulica atra) may gather on the small, shallow Lake Krankesjon in southern Sweden, where they dive for submerged plants. Casual observations indicated that intraspecific kleptoparasitism was common throughout these flocks. Kleptoparasitic attacks mostly occurred shortly after a Common Coot surfaced with food and before it had ingested much of it.

Populärvetenskaplig sammanfattning: Undersökningens baseras på prover från hårdvävnaden hos belemniter som är en utdöd form av bläckfisk. Syftet var att undersöka de NO-skånska kretaceiska belemniternas stabila isotopinnehåll, samt att analysera deras diagenetiska och paleoklimatologiska status. Belemniterna kommer från fyra lokaler: Ullstorp, Ignaberga, Åsen och Balsvik vilka alla ligger i KristiStable isotope compositions (δ18 0 and δ13 C) and cathodoluminescence characteristics were determined in 112 belemnite rostra, including Belemnellocamax grossouvrei, Belemnitella alpha, Belemnellocamax mammillatus, Belemnellocamax balsvikensis, Gonioteuthis quadrata scaniensis, Belemnitella mucronata and Belemnella lanceolata. The main aims were to determine palaeoenvironmental and diagenetic infl

When ferrochromium is produced at Vargon Alloys AB (Vargon, Sweden), an offgas dust is generated as a byproduct. A leachate that contains hexavalent chromium (Cr6+) is formed when rainwater percolates through the dust deposit. In this study, Cr6+ in the leachate was reduced to trivalent chromium (Cr3+) by biological treatment in a biofilm process operated under anaerobic conditions. The reactor vo

A fully integrated 0.6 V VCO for the GPS L1 band is realized in a 90 nm RF-CMOS process. The purpose of the design is to demonstrate how suitable deep submicron CMOS transistors are for ultra low voltage, low power oscillator design. The VCO operates at 6.3 GHz and a divide-by-four circuit buffer provide the wanted 1575.42 MHz signal. Measured phase noise is for a 0.6 V supply voltage and bias cur

The objective of this thesis was to find ways of improving part-load efficiency for a spark ignition engine by studying the effects of variable-valve actuation on fluid flow and combustion. The in-cylinder flow was measured with laser doppler velocimetry, LDV, and particle image velocimetry, PIV. A piezo-electric pressure transducer was used to measure the in-cylinder pressure, which was used for

USA har flera gånger intervenerat i andra stater och har idag en pågående operation i Syrien. Kriget i Syrien är mycket komplext vilket har gjort att USA:s interventioner inte blivit granskade på djupet. Vi ämnar därför applicera teorin om rättfärdiga krig för att undersöka huruvida USA har intervenerat rättfärdigt. Genom att analyser USA:s syfte och ageranden, gentemot Syriens regim samt terroris

In this paper we discuss $(\epsilon,\delta)$-Freudenthal Kantor triple systems with certain structure on the subspace $L_{-2}$ of the corresponding standard embedding five graded Lie (super)algebra $L(\epsilon,\delta):=L_{-2}\oplus L_{-1}\oplus L_0\oplus L_1\oplus L_2; [L_i,L_j]\subseteq L_{i+j}$. We recall Lie and Jordan structures associated with $(\epsilon,\delta)$-Freudenthal Kantor triple sys

Visual cues provide an important means for aerial creatures to ascertain their self-motion through the environment. In many insects, including flies, moths, and bees, wide-field motion-sensitive neurons in the third optic ganglion are thought to underlie such motion encoding; however, these neurons can only respond robustly over limited speed ranges. The task is more complicated for some species o

Renewed scholarly interest in the category of history within the field of International Relations has prompted a revival of the so-called English School and its analytic emphasis on the concept of international society. This study examines the expansion of nineteenth century European international society through the theory of legal reception applied to the cases of Japan and the Ottoman empire. M

This article is the outcome of two research trips to the Jain caves at Ellora, the purpose of which was to photograph the best preserved murals found there, works of art that were largely undocumented in any available literature. The article documents and portrays the best preserved paintings in detail found on the walls and ceiling of one of the smaller caves belonging to the largest Jain cave co

The Elites of Civil Society: A Comparative Analysis presents the first book-length analysis of the top echelons in civil society from an elite perspective. Combining elite studies with civil society research, the book analyses civil society elite structures in four countries – Italy, Poland, Sweden, and the UK. Using a theoretical framework focusing on the vertical stratification in the sector and

The Gebel el Silsila Project is a multi-disciplinary Swedish mission dedicated to the study of the archaeological remains at Ancient Egypt’s largest sandstone quarry of Gebel el Silsila, Mountain of Chain, just north of Kom Ombo in the Aswan region. This paper presents a general summary of the epigraphical and archaeo-topographical survey of the largest quarry on the east bank – Qu